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1

Promotion of Sexual Activity in Rats with Eurycoma longifolia Jack  

Microsoft Academic Search

Eurycoma longifolia Jack has been used in Malaysian traditional medicine to increase male virility and sexual prowess. To determine, whether the plant could actually promote sexual activity, male rats were treated with extracts of root tissue for a longitudinal study on copulatory behavior with female rats. Those rats treated with an extract retained a higher level of sexual activity (as

H. H. Ang; H. S. Cheang

2000-01-01

2

Eurycoma longifolia Jack in managing idiopathic male infertility  

Microsoft Academic Search

This study investigated the effect of treatment with the proprietary standardized, water-soluble extract of the root of the Malaysian plant, Eurycoma longifolia Jack, which is thought to enhance male fertility with regard to higher semen volumes, sperm concentrations, the percentage of normal sperm morphology and sperm motility in male partners of sub-fertile couples with idiopathic infertility. A total of 350

Mohd Ismail Bin Mohd Tambi; M. Kamarul Imran

2010-01-01

3

Eurycoma longifolia Jack in managing idiopathic male infertility  

PubMed Central

This study investigated the effect of treatment with the proprietary standardized, water-soluble extract of the root of the Malaysian plant, Eurycoma longifolia Jack, which is thought to enhance male fertility with regard to higher semen volumes, sperm concentrations, the percentage of normal sperm morphology and sperm motility in male partners of sub-fertile couples with idiopathic infertility. A total of 350 patients were given 200 mg of the extract daily and follow-up semen analyses were performed every 3 months for 9 months. Of these 350 patients, 75 patients completed one full cycle of 3 months. Follow-up semen analyses in these patients showed significant improvement in all semen parameters. The proprietary extract of Eurycoma longifolia Jack significantly improved the sperm quality in these patients, allowing for 11 (14.7%) spontaneous pregnancies.

Bin Mohd Tambi, Mohd Ismail; Imran, M. Kamarul

2010-01-01

4

Effects of Eurycoma longifolia Jack on sexual behaviour of male rats  

Microsoft Academic Search

The effects ofEurycoma longifolia Jack were studied on the sexual behaviour of male rats. Sexually normal male rats were treated twice daily with 500 mg kg?1 of different fractions ofE. longifolia Jack for 10 days prior to test and were then observed for their copulatory behaviour with a receptive female in a copulation\\u000a cage. Results showed that was a significant

Hool Hoon Ang; Meng Kwoon Sim

1997-01-01

5

Potential biochemical markers for somatic embryos of Eurycoma longifolia jack  

Microsoft Academic Search

Biochemical marker is one of the important tools for the early identification and selection of somatic embryogenesis in plants.\\u000a Studies in developing the biochemical marker for somatic embryogenesis ofEurycoma longifolia disclosed that the regenerated and non-regenerated cotyledons as well as embryogenic and non-embryogenic callus were significantly\\u000a different in terms of the total protein content as well as the specific activity

Sobri Hussein; Rusli Ibrahim; Anna Ling Pick Kiong

2006-01-01

6

Quassinoids from Eurycoma longifolia  

Microsoft Academic Search

Three quassinoids, eurycolactone D (1), eurycolactone E (2) and eurycolactone F (3) were isolated from the roots of Eurycoma longifolia Jack. The structures of 1–3 were elucidated by spectroscopic methods, and that of 3 was further confirmed by X-ray crystallography. The known quassinoids, laurycolactone B (4) and eurycomalactone (5) were also identified.

Hooi Hoon Ang; Yukio Hitotsuyanagi; Haruhiko Fukaya; Koichi Takeya

2002-01-01

7

Antiplasmodial studies of Eurycoma longifolia Jack using the lactate dehydrogenase assay of Plasmodium falciparum  

Microsoft Academic Search

The roots of Eurycoma longifolia Jack have been used as traditional medicine to treat malaria. A systematic bioactivity-guided fractionation of this plant was conducted involving the determination of the effect of its various extracts and their chemical constituents on the lactate dehydrogenase activity of in vitro chloroquine-resistant Gombak A isolate and chloroquine-sensitive D10 strain of Plasmodium falciparum parasites. Their antiplasmodial

Kit-Lam Chan; Chee-Yan Choo; Noor Rain Abdullah; Zakiah Ismail

2004-01-01

8

Effects of Eurycoma longifolia Jack on Copulatory Behavior in Middle-Aged Male Rats  

Microsoft Academic Search

The effects of Eurycoma longifolia Jack extracts on copulatory behavior was studied in middle-aged male rats. Chronic dosing with 0.5 g\\/kg daily of plant extracts elicited mountings and, after four weeks of treatment facilitated both intromissions and ejaculations. Repeated dosing exhibited more pronounced stimulation of copulatory behavior in the rats with a high level of maintenance of both intromissions and

H. H. Ang; H. S. Cheang

2002-01-01

9

Tongkat Ali ( Eurycoma longifolia Jack): A review on its ethnobotany and pharmacological importance  

Microsoft Academic Search

Eurycoma longifolia Jack is an herbal medicinal plant of South-East Asian origin, popularly recognized as ‘Tongkat Ali.’ The plant parts have been traditionally used for its antimalarial, aphrodisiac, anti-diabetic, antimicrobial and anti-pyretic activities, which have also been proved scientifically. The plant parts are rich in various bioactive compounds (like eurycomaoside, eurycolactone, eurycomalactone, eurycomanone, and pasakbumin-B) among which the alkaloids and

Rajeev Bhat; A. A. Karim

2010-01-01

10

Effects of Eurycoma longifolia Jack on laevator ani muscle in both uncastrated and Testosterone-Stimulated castrated intact male rats  

Microsoft Academic Search

It has been reported thatEurycoma longifolia Jack commonly known as Tongkat Ali has gained notoreity as a symbol of man’s ego and strength by the Malaysian men because\\u000a it increases male virility and sexual prowess during sexual activities. As such, the effects of 200, 400 and 800 mg\\/kg of\\u000a butanol, methanol, water and chloroform fractions ofE. longifolia Jack were studied

Hooi Hoon Ang; Hung Seong Cheang

2001-01-01

11

Effect of 7-day daily replacement of culture medium containing Eurycoma longifolia Jack constituents on the Malaysian Plasmodium falciparum isolates  

Microsoft Academic Search

Six Malaysian chloroquine-resistant Plasmodium falciparum isolates were cultured in vitro following the candle-jar method. Antimalarial evaluations of daily replacement of culture medium containing chloroquine and a semi-purified extract of Eurycoma longifolia Jack (containing 13?,18-dihydroeurycomanol (1), eurycomanol-2-O-?-d-gluco-pyranoside (2), eurycomanol (3) and eurycomanone (4)) were performed on 6-well plates at 37°C for a week. Presence or absence of the parasites was determined

Hooi Hoon Ang; Kit Lam Chan; Joon Wah Mak

1995-01-01

12

2,3-Dehydro-4?-hydroxylongilactone, a novel quassinoid and two known phenyl propanoids from Eurycoma longifolia Jack  

Microsoft Academic Search

A phytochemical study on the root of Eurycoma longifolia Jack afforded a novel 2,3-dehydro-4?-hydroxylongilactone (1) and two known phenyl propanoids, 2,3-dihydroxy-1-(4?-hydroxy-3?-methoxyphenyl)-propan-1-one (2) and scopolin (3), isolated from this plant for the first time. All structures were characterised by spectroscopic analysis (1D and 2D NMR experiments, HRMS, UV, IR and optical rotation) and by comparison with known data. This is the

Chin-Hoe Teh; Hiroshi Morita; Osamu Shirota; Kit-Lam Chan

2010-01-01

13

Efficacy of the 'Malaysian Ginseng',US Patented, Standardised Water Soluble Extract of Eurycoma longifolia jack in Managing Idiopathic Male Infertility  

Microsoft Academic Search

Summary Standardized water soluble extract of the root of Eurycoma longifolia jack, a common Malaysian folklore medicine known to have testosterone enhancing effect, including anti stress, anti aging effect with normalizing growth hormone besides SOD activity is given to the male clients with idiopathic male infertility to evaluate its efficacy. Each client were given a dose of 200mg daily of

M. I. Tambi; M. Kamarul Imran

14

Genetic Diversity of Eurycoma longifolia Inferred from Single Nucleotide Polymorphisms  

Microsoft Academic Search

Eurycoma longifolia Jack. is a treelet that grows in the forests of Southeast Asia and is widely used throughout the region because of its reported medicinal properties. Widespread harvesting of wild-grown trees has led to rapid thinning of natural populations, causing a potential decrease in genetic diversity among E. longifolia. Suitable genetic markers would be very useful for propagation and

Asiah Osman; Barbara Jordan; Philip A. Lessard; Norwati Muhammad; M. Rosli Haron; Norifiza Mat Riffin; Anthony J. Sinskey; ChoKyun Rha; David E. Housman

2003-01-01

15

Influence of Eurycoma longifolia on the copulatory activity of sexually sluggish and impotent male rats  

Microsoft Academic Search

Aim of the studyThe root of Eurycoma longifolia Jack, native to South East Asia, has long been used as a male aphrodisiac remedy to treat sexual disorders.In the study we evaluated the influence of Eurycoma longifolia Jack on sexual behavior (including both motivation and copulatory performance) of sexually sluggish and impotent male rats.

P. Zanoli; M. Zavatti; C. Montanari; M. Baraldi

2009-01-01

16

Eurycoma longifolia increases sexual motivation in sexually naive male rats  

Microsoft Academic Search

The aim of this study is to provide evidence on the aphrodisiac property ofEurycoma longifolia Jack. An electric grid was used as an obstruction in the electrical copulation cage in order to determine how much an aversive\\u000a stimulus the sexually naive male rat for both the treated withE. longifolia Jack and control groups were willing to overcome to reach the

Hooi Hoon Ang; Meng Kwoon Sim

1998-01-01

17

Eurycoma longifolia increases sexual motivation in sexually naive male rats.  

PubMed

The aim of this study is to provide evidence on the aphrodisiac property of Eurycoma longifolia Jack. An electric grid was used as an obstruction in the electrical copulation cage in order to determine how much an aversive stimulus the sexually naive male rat for both the treated with E. longifolia Jack and control groups were willing to overcome to reach the estrous receptive female in the goal cage. The intensity of the grid current was maintained at 0.12 mA and this was the intensity in which the male rats in the control group failed to crossover to reach the goal cage. Results showed that E. longifolia Jack continued to enhance and also maintain a high level of both the total number of successful crossovers, mountings, intromissions and ejaculations during the 9-12th week observation period. In conclusion, these results further enhanced and strengthened the aphrodisiac property of E. longifolia Jack. PMID:9868556

Ang, H H; Sim, M K

1998-12-01

18

Evaluation of Acute 13-Week Subchronic Toxicity and Genotoxicity of the Powdered Root of Tongkat Ali (Eurycoma longifolia Jack)  

PubMed Central

Tongkat Ali (Eurycoma longifolia) is an indigenous traditional herb in Southern Asia. Its powdered root has been processed to produce health supplements, but no detailed toxicology report is available. In this study, neither mutagenicity nor clastogenicity was noted, and acute oral LD50 was more than 6?g/kg b.w. After 4-week subacute and 13-week subchronic exposure paradigms (0, 0.6, 1.2, and 2?g/kg b.w./day), adverse effects attributable to test compound were not observed with respect to body weight, hematology, serum biochemistry, urinalysis, macropathology, or histopathology. However, the treatment significantly reduced prothrombin time, partial thromboplastin time, blood urea nitrogen, creatinine, aspartate aminotransferase, creatine phosphate kinase, lactate dehydrogenase, and cholesterol levels, especially in males (P < 0.05). These changes were judged as pharmacological effects, and they are beneficial to health. The calculated acceptable daily intake (ADI) was up to 1.2 g/adult/day. This information will be useful for product development and safety management.

Liao, Jiunn-Wang; Liao, Po-Lin; Huang, Wei-Kuang; Tse, Ling-Shan; Lin, Cheng-Hui; Kang, Jaw-Jou; Cheng, Yu-Wen

2013-01-01

19

Evaluation of Acute 13-Week Subchronic Toxicity and Genotoxicity of the Powdered Root of Tongkat Ali (Eurycoma longifolia Jack).  

PubMed

Tongkat Ali (Eurycoma longifolia) is an indigenous traditional herb in Southern Asia. Its powdered root has been processed to produce health supplements, but no detailed toxicology report is available. In this study, neither mutagenicity nor clastogenicity was noted, and acute oral LD50 was more than 6?g/kg b.w. After 4-week subacute and 13-week subchronic exposure paradigms (0, 0.6, 1.2, and 2?g/kg b.w./day), adverse effects attributable to test compound were not observed with respect to body weight, hematology, serum biochemistry, urinalysis, macropathology, or histopathology. However, the treatment significantly reduced prothrombin time, partial thromboplastin time, blood urea nitrogen, creatinine, aspartate aminotransferase, creatine phosphate kinase, lactate dehydrogenase, and cholesterol levels, especially in males (P < 0.05). These changes were judged as pharmacological effects, and they are beneficial to health. The calculated acceptable daily intake (ADI) was up to 1.2 g/adult/day. This information will be useful for product development and safety management. PMID:24062779

Li, Ching-Hao; Liao, Jiunn-Wang; Liao, Po-Lin; Huang, Wei-Kuang; Tse, Ling-Shan; Lin, Cheng-Hui; Kang, Jaw-Jou; Cheng, Yu-Wen

2013-08-25

20

Activity of Eurycoma longifolia root extract against Plasmodium falciparum in vitro  

Microsoft Academic Search

\\u000a Zusammenfassung  Die natürliche Heimat von Eurycoma longifolia Jack, einem schlanken Baum, sind Urwälder in Malaysien und Indonesien. Die Pflanze gehört zur Familie Simirubaceae und enthält\\u000a Quassinoide mit anabolischer, plasmodizider und zytostatischer Aktivität. In dieser, 2008 in Mae Sot, Thailand, durchgeführten\\u000a Studie wurde ein standardisierter Extrakt aus E. longifolia im Vergleich mit Artemisinin auf seine Wirkung gegen Plasmodium falciparum untersucht. Der Extrakt

Walther H. Wernsdorfer; Sabariah Ismail; Kit Lam Chan; Kanungnit Congpuong; Gunther Wernsdorfer

2009-01-01

21

Quassinoids from Eurycoma longifolia as plant growth inhibitors  

Microsoft Academic Search

Seven quassinoids including a new 12-epi-11-dehydroklaineanone were isolated from the leaves of Eurycoma longifolia (Simaroubaceae) as plant growth inhibitors or related compounds. The strongest activity was found in 14,15?-dihydroxyklaineanone.

Suratwadee Jiwajinda; Vilai Santisopasri; Akira Murakami; Nobuhiro Hirai; Hajime Ohigashi

2001-01-01

22

Developing a validated liquid chromatography–mass spectrometric method for the simultaneous analysis of five bioactive quassinoid markers for the standardization of manufactured batches of Eurycoma longifolia Jack extract as antimalarial medicaments  

Microsoft Academic Search

An extensive comparative study on the electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) mass spectrometry using automated flow injection analysis (FIA), was performed on eurycomanone (1), 13?(21)-epoxyeurycomanone (2), eurycomanol (3), eurycomanol-2-O-?-d-glucopyranoside (4), and 13,21-dihydroeurycomanone (5), the bioactive markers isolated from Eurycoma longifolia. The effects of eluent mixture (methanol or acetonitrile in water) and acidic modifiers (acetic acid, formic

Chin-Hoe Teh; Vikneswaran Murugaiyah; Kit-Lam Chan

2011-01-01

23

Cytotoxic and antimalarial constituents from the roots of Eurycoma longifolia  

Microsoft Academic Search

Sixty-five compounds were isolated from the roots of Eurycoma longifolia and characterized by comprehensive analyses of their 1D and 2D NMR, and mass spectral data. Among these isolates, four quassinoid diterpenoids were reported from natural sources for the first time, namely eurycomalide A (1), eurycomalide B (2), 13?, 21-dihydroxyeurycomanol (3), and 5?, 14?, 15?-trihydroxyklaineanone (4). Screening of cytotoxicity, anti-HIV and

Ping-Chung Kuo; Amooru G Damu; Kuo-Hsiung Lee; Tian-Shung Wu

2004-01-01

24

In vitro anti-tumor promoting and anti-parasitic activities of the quassinoids from Eurycoma longifolia, a medicinal plant in Southeast Asia  

Microsoft Academic Search

Some quassinoids (1–6) isolated previously as plant growth inhibitors from the leaves of Eurycoma longifolia Jack. (Simaroubaceae) were subjected to in vitro tests on anti-tumor promoting, antischistosomal and plasmodicidal activities. The most active compound for inhibition of tumor promoter-induced Epstein–Barr virus activation (anti-tumor promotion) was 14,15?-dihydroxyklaineanone (5, IC50=5 ?M). Longilactone (1) gave significant antischistosomal effect at a concentration of 200

Suratwadee Jiwajinda; Vilai Santisopasri; Akira Murakami; Masanori Kawanaka; Hiromu Kawanaka; Monique Gasquet; Riad Eilas; Guy Balansard; Hajime Ohigashi

2002-01-01

25

A microcontroller-based taste sensing system for the verification of Eurycoma longifolia  

Microsoft Academic Search

With the proliferation of numerous herbal remedies on the market, the ability to verify the actual presence of the active herbal ingredient in a product would be very useful. In this paper, a microcontroller-based electronic taste sensing system capable of discriminating between liquid samples containing Eurycoma longifolia and those that do not, is described. The ‘taste’ of the liquid sample

A. S. Abdul Rahman; M. M. Sim Yap; M. N Ahmad; Z Dahari; Z Ismail; M. S Hitam

2004-01-01

26

LCMS\\/MS-based metabolites of Eurycoma longifolia (Tongkat Ali) in Malaysia (Perak and Pahang)  

Microsoft Academic Search

A number of three LC-MS\\/MS hybrid systems (QTof, TripleTof and QTrap) has been used to profile small metabolites (m\\/z 100-1000) and to detect the targeted metabolites such as quassinoids, alkaloids, triterpene and biphenylneolignans from the aqueous extracts of Eurycoma longifolia. The metabolite profiles of small molecules showed four significant clusters in the principle component analysis for the aqueous extracts of

Lee Suan Chua; Nor Amaiza Mohd Amin; Jason Chun Hong Neo; Ting Hun Lee; Chew Tin Lee; Mohamad Roji Sarmidi; Ramlan Abdul Aziz

27

Plant proteins, minerals and trace elements of Eurycoma longifolia (Tongkat Ali)  

Microsoft Academic Search

A water extraction method has been used to extract plant proteins from the roots of Eurycoma longifolia harvested from Perak and Pahang, Malaysia. On the basis of the spectroscopic Bradford assay, Tongkat Ali Perak and Pahang contained 0.3868 and 0.9573?mg?mL of crude protein, respectively. The crude proteins were separated by one dimensional 15% sodium dodecyl sulphate polyacrylamide gel electrophoresis into

Lee Suan Chua; Nurulaini Abdul-Rahman; Bustanur Rosidi; Chew Tin Lee

2012-01-01

28

Factors affecting the accumulation of 9-methoxycanthin-6-one in callus cultures of Eurycoma longifolia  

Microsoft Academic Search

A study was conducted to improve 9-methoxycanthin-6-one productivity (potential anti-tumour compound) from callus cultures\\u000a of Eurycoma longifolia (Tongkat Ali). Several factors affecting 9-methoxycanthin-6-one production in callus cultures such as different medium compositions\\u000a and physical factors were investigated and analyzed. Results show that a higher production of 9-methoxycanthin-6-one (3.84\\u000a mg·g?1 DW (Dry Weight)) is obtained from callus cultured in ¾ MS

N. Rosli; M. Maziah; K. L. Chan; S. Sreeramanan

2009-01-01

29

Streamlined life cycle assessment of residue utilization options in Tongkat Ali ( Eurycoma longifolia ) water extract manufacturing process  

Microsoft Academic Search

Life cycle assessment (LCA) is often used to compare alternative process options in terms of their overall impact on the environment\\u000a to easily identify the most environmentally friendly alternative. In this work, a streamlined LCA study was conducted to assess\\u000a three different residue utilization schemes for Tongkat Ali (Eurycoma longifolia) extract production. The case study was firstly simulated using a

Choon Keat Kuan; Dominic Chwan Yee Foo; Raymond R. Tan; Sivakumar Kumaresan; Ramlan Abdul Aziz

2007-01-01

30

DISEASE SURVEY OF EURYCOMA LONGIFOLIA (JACK.) IN PENINSULAR MALAYSIA  

Microsoft Academic Search

the occurrence of diseases as well as to identify the causal organisms. During the survey, disease symptoms, associated organisms, pattern of disease spread and abiotic factors associated with the disease incidence were recorded. Disease samples were collected and transported to the Mycology and Pathology Laboratory, FRIM for identification of associated organisms. Generally, it was found that insect pests were the

M. Patahayah; S. S. Lee; A. Mohd Farid; M. Mohd Parid

31

Effect of Eurycoma longifolia extract on the Glutathione level in Plasmodium falciparum infected erythrocytes in vitro  

Microsoft Academic Search

In the present study we examined the effect of E. longifolia methanol extract (TA164) on the GSH levels of P. falciparum infected erythrocytes and uninfected erythrocytes. Our study on parasite growth shows the IC50 and IC75 values of TA164 to be 0.17 µg\\/ml and 6 µg\\/ml respectively while for BSO was 25.5 µg\\/ml and 46.5 µg\\/ml respectively. About 95% to

Mohd Ridzuan; Noor Rain; Jalan Pahang; Pusat Pengajian; Sains Farmasi

32

Quassinoids from Eurycoma harmandiana.  

PubMed

Three quassinoids, iandonosides A and B and iandonone, were isolated from the root of Eurycoma harmandiana, along with five known quassinoids, casteloside B, 13 beta, 21-dihydroeurycomanone, chaparrinone, glaucarubolone and ailanquassin B as well as the coumarin, scopoletin. The structural elucidations were based on analyses of spectroscopic data. PMID:11454344

Kanchanapoom, T; Kasai, R; Chumsri, P; Yamasaki, K

2001-08-01

33

Quassinoids from Eurycoma harmandiana  

Microsoft Academic Search

Three quassinoids, iandonosides A and B and iandonone, were isolated from the root of Eurycoma harmandiana, along with five known quassinoids, casteloside B, 13 ?, 21-dihydroeurycomanone, chaparrinone, glaucarubolone and ailanquassin B as well as the coumarin, scopoletin. The structural elucidations were based on analyses of spectroscopic data.

Tripetch Kanchanapoom; Ryoji Kasai; Phannipha Chumsri; Kazuo Yamasaki

2001-01-01

34

Eurycomanone suppresses expression of lung cancer cell tumor markers, prohibitin, annexin 1 and endoplasmic reticulum protein 28  

Microsoft Academic Search

Bioactive compounds from the medicinal plant, Eurycoma longifolia Jack have been shown to promote anti-proliferative effects on various cancer cell lines. Here we examined the effects of purified eurycomanone, a quassinoid found in Eurycoma longifolia Jack extract, on the expression of selected genes of the A549 lung cancer cells. Eurycomanone inhibited A549 lung cancer cell proliferation in a dose-dependent manner

Pooi-Fong Wong; Wei-Fun Cheong; Meng-Hooi Shu; Chin-Hoe Teh; Kit-Lam Chan; Sazaly AbuBakar

35

Correlation study between the electronic nose response and headspace volatiles of Eurycoma longifolia extracts  

Microsoft Academic Search

Most herb has its own characteristic smell due to the presence of volatile compounds. Traditionally, volatiles are analyzed using sophisticated and expensive gas chromatography (GC) in tandem with selective mass spectrometric (MS) detector. An alternative approach based on the use of electronic nose is described. The approach is much simpler than the traditional GC-MS counterparts, but providing key information of

Shafiqul Islam; Z. Ismail; A. R. Othman; M. N. Ahmad

36

Correlation studies between electronic nose response and headspace volatiles of Eurycoma longifolia extracts  

Microsoft Academic Search

Most herbs have their own characteristic smell due to the presence of volatile compounds. Traditionally, volatiles are analyzed by using sophisticated and expensive gas chromatography (GC) in tandem with a selective mass spectrometric (MS) detector. An alternative approach is described based on the use of an electronic nose. The approach is much simpler than the traditional GC–MS counterparts, but providing

A. K. M. Shafiqul Islam; Z. Ismail; B. Saad; A. R. Othman; M. N. Ahmad

2006-01-01

37

Modelling and Optimisation of Eurycoma longifolia Extraction Utilising a Recirculating Flow Extractor  

Microsoft Academic Search

In this study, Tongkat Ali was extracted with a newly designed recirculating flow extractor with temperature and flow rate as the operating parameters. The optimum duration and ratio for extraction were found to be 90 min and 40:1 w\\/w, respectively. The determination of optimal operating parameter value for this extractor was based on maximum percentage extract yield and solid diffusivity,

Mohd Ajib Mohtar; Sivakumar Kumaresan; Mohd Roji Sarmidi; Ramlan Abdul Aziz

2007-01-01

38

Product: 704 - Pollens - Trees, Acacia Acacia longifolia  

Center for Biologics Evaluation and Research (CBER)

Text Version... longifolia Published Data PMID: 7105390 reported high cross-reactivity between rye grass pollen and A. sophorae extract. ... More results from www.fda.gov/downloads/biologicsbloodvaccines/allergenics

39

Mobile Lifting Jack.  

National Technical Information Service (NTIS)

A mobile jack, particularly for use in installation of support beams in underground mines, is disclosed. The jack comprises a wheel-mounted frame and a hydraulic lifting arm having a jack head which is horizontally rotatable 360 deg. The lifting arm is al...

R. L. Unger T. G. Bobick

1987-01-01

40

Jack & the Video Camera  

ERIC Educational Resources Information Center

|This article narrates how the use of video camera has transformed the life of Jack Williams, a 10-year-old boy from Colorado Springs, Colorado, who has autism. The way autism affected Jack was unique. For the first nine years of his life, Jack remained in his world, alone. Functionally non-verbal and with motor skill problems that affected his…

Charlan, Nathan

2010-01-01

41

Red Phosphorus Jack Grenade.  

National Technical Information Service (NTIS)

CDEE PORTON have produced a Red Phosphorus Jack Grenade for AFV local smoke protection, with the object of combining the rapid screening qualities of the No 80 White Phosphorus with the quicker loading and reduced fire hazard of the L5 and L7 Jack Grenade...

C. A. Robinson P. A. Nelson P. G. Bartholomew

1968-01-01

42

Motorized support jack  

DOEpatents

A compact, vacuum compatible motorized jack for supporting heavy loads and adjusting their positions is provided. The motorized jack includes: (a) a housing having a base; (b) a first roller device that provides a first slidable surface and that is secured to the base; (c) a second roller device that provides a second slidable surface and that has an upper surface; (d) a wedge that is slidably positioned between the first roller device and the second roller device so that the wedge is in contact with the first slidable surface and the second slidable surface; (e) a motor; and (d) a drive mechanism that connects the motor and the wedge to cause the motor to controllably move the wedge forwards or backwards. Individual motorized jacks can support and lift of an object at an angle. Two or more motorized jacks can provide tip, tilt and vertical position adjustment capabilities.

Haney, Steven J. (Tracey, CA); Herron, Donald Joe (Manteca, CA)

2001-01-01

43

Curriculum Vitae: Jack Cook  

Center for Biologics Evaluation and Research (CBER)

Text VersionPage 1. CURRICULUM VITAE Last Name: Cook First Name: Jack Middle Initial: A Today's Date: (dd Mmm yyyy): 23 AUG 2012 ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

44

Canthin-6-one and ?-carboline alkaloids from Eurycoma harmandiana  

Microsoft Academic Search

Two alkaloids, canthin-6-one 9-O-?-glucopyranoside and 7-hydroxy-?-carboline 1-propionic acid, were isolated from the roots of Eurycoma harmandiana, together with the five known canthin-6-one alkaloids, 9-hydroxycanthin-6-one, 9-methoxycanthin-6-one, 9,10-dimethoxycanthin-6-one, canthin-6-one and canthin-6-one N-oxide, and the two known ?-carboline alkaloids, ?-carboline 1-propionic acid and 7-methoxy-?-carboline 1-propionic acid. Their structures were based on analyses of spectroscopic data.

Tripetch Kanchanapoom; Ryoji Kasai; Phannipha Chumsri; Yoshikazu Hiraga; Kazuo Yamasaki

2001-01-01

45

20. MANUAL JACKING STATION UNIT 23 GORGE POWERHOUSE. JACKING FOR ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

20. MANUAL JACKING STATION UNIT 23 GORGE POWERHOUSE. JACKING FOR UNITS 23, 22, AND 21 HAS BEEN AUTOMATED FOR MANY YEARS BUT THE MANUAL JACKING STATIONS REMAIN IN PLACE AND FUNCTIONAL, 1989. - Skagit Power Development, Gorge Powerhouse, On Skagit River, 0.4 mile upstream from Newhalem, Newhalem, Whatcom County, WA

46

Vehicle jack with wedge mechanism  

Microsoft Academic Search

In many developing countries, particularly Nigeria, the high cost of production of a vehicle jack and the prevailing economic situation has made the commercial production of vehicle jacks difficult. Thus, the development of an appropriate technology for a vehicle jack would be of vital utility to vehicle users. This paper presents the design and construction of a low-price, simple mechanical

Ademola A. Dare; Sunday A. Oke

47

Celebrate Ezra Jack Keats.  

ERIC Educational Resources Information Center

|Discusses the life of Ezra Jack Keats in relation to his children's books, both as illustrator and author. Presents extension ideas for activities and includes an annotated bibliography of his works, including videos based on Keats's work, biographies, biographical information, and Web resources. (LRW)|

Brodie, Carolyn S.

2003-01-01

48

Oil well jack  

SciTech Connect

The invention relates to an oil well jack having a walking beam mounted on a frame for motion in a vertical plane; and a plurality of hydraulic actuators connected to move the walking beam. The amplitude of movement of the beam as well as the frequency of the stroke are adjustable through regulation and control of the hydraulic system.

Dooling, J. E.

1985-05-28

49

Well casing jack mechanism  

SciTech Connect

A casing jacking mechanism is positionable in the rotary table opening of a well drilling rig to lower casing into the well, and is preferably formed sectionally of a number of components adapted to be assembled temporarily on the rig and subsequently dismantled after the casing has been lowered. The jacking mechanism may include a first support structure to be located above the upper end of the well, two piston and cylinder mechanisms adapted to be lowered at different sides of the axis of the well to positions in which their cylinders are connected by the support structure, a second support structure connectable to and actuable vertically by the pistons of the piston and cylinder mechanisms, a spider unit adapted to be placed on the first support structure and releasably engageable with the well pipe, and an elevator to be positioned on the second support structure for movement vertically therewith and also releasably engageable with the well pipe.

Boyadjieff, G.I.; Campbell, A.B.

1984-08-14

50

Verti Jack Pumping Unit evaluation  

Microsoft Academic Search

The Verti Jack Pumping Unit was tested primarily to establish the energy comsumption efficiency of the unit as compared with that of conventional pumping unit. Before the unit was field tested, extensive static testing was performed to determine the effect of the counterbalance system throughout the operational cycle. The field test included comparing the performance of the Verti Jack Unit

R. Porter; K. Spence

1985-01-01

51

Jack Sheaffer Collection  

NSDL National Science Digital Library

Born in 1929, Jack Sheaffer chronicled the explosive growth of Arizona during the better part of the 20th century. He attended Tucson High School, joined the Air Force in 1954, and then started working as a contract photographer for the Arizona Daily Star. Sheaffer was the chief photographer for the paper between 1955 and 1982, and this voluminous collection presents a healthy sampling of his work. Here visitors can make their way through over 10,000 photographs digitized by the University of Arizona Libraries Digital Collections. Visitors can perform a detailed search across the entire collection, but it's also fun to just type in a keyword or two, such as Tucson, roads, or parades. Visitors will note that the subjects covered by Sheaffer are vast, and they include tragic accidents, local beauty pageants, and the Tucson Rodeo. All told, this site offers an amazing portrait of Arizona in the latter half of the 20th century.

52

Verti Jack Pumping Unit Evaluation.  

National Technical Information Service (NTIS)

The Verti Jack Pumping Unit was tested primarily to establish the energy comsumption efficiency of the unit as compared with that of conventional pumping unit. Before the unit was field tested, extensive static testing was performed to determine the effec...

R. Porter K. Spence

1985-01-01

53

Proximate composition, energy content and physiochemical properties of Afzelia africana and Brachystegia eurycoma seeds  

Microsoft Academic Search

The proximate composition, energy content and physiochemical properties ofAfzelia africana andBrachystegia eurycoma seeds were determined. The bulk density, reconstituability, foam properties and emulsification properties of flour samples in water, 1% saline and 1% alkali were studied. There were no significant differences (p=0.05) in the proximate composition of seeds from different agroclimatic zones. The energy content of seeds were comparable to

F. N. Madubuike; P. C. Ojimelukwe; P. O. Ajah

1994-01-01

54

Generalized clustering conditions of Jack polynomials at negative Jack parameter ?  

NASA Astrophysics Data System (ADS)

We present several conjectures on the behavior and clustering properties of Jack polynomials at a negative parameter ?=-(k+1)/(r-1) , with partitions that violate the (k,r,N) - admissibility rule of [Feigin [Int. Math. Res. Notices 23, 1223 (2002)]. We find that the “highest weight” Jack polynomials of specific partitions represent the minimum degree polynomials in N variables that vanish when s distinct clusters of k+1 particles are formed, where s and k are positive integers. Explicit counting formulas are conjectured. The generalized clustering conditions are useful in a forthcoming description of fractional quantum Hall quasiparticles.

Bernevig, B. Andrei; Haldane, F. D. M.

2008-05-01

55

65th birthday Jack Steinberger  

ScienceCinema

Laudatio pour Jack Steinberger né le 25 mai 1921, à l'occasion de son 65me anniversaire et sa retraite officielle, pour sa précieuse collaboration au Cern. Néanmoins son principal activité continuera comme avant dans sa recherche au Cern. Plusieurs orateurs prennent la parole (p.ex. E.Picasso) pour le féliciter et lui rendre hommage

56

Jack the Ripper” Strikes Again  

Microsoft Academic Search

This paper identifies the dominant cultural narrative that grew up around the “Jack the Ripper” murder case of 1888, and examines the representational treatment of the female murder victims within that narrative. It observes that this cultural narrative of the Ripper's crimes developed as a warning for women: if they transgressed the margins of traditional, domestic femininity, they risked incurring

Elyssa Warkentin

2010-01-01

57

The chemistry, pharmacologic, and therapeutic applications of Polyalthia longifolia  

PubMed Central

Medicinal plants are nature's gift to human beings to lead a disease-free, healthy life. They play a vital role in preserving our health. India is one of the most medicoculturally diverse countries in the world, where the medicinal plant sector is part of a time-honored tradition that is respected even today. Medicinal plants are believed to be much safer and proved as elixir in the treatment of various ailments. In our country, more than 2000 medicinal plants are recognized. Polyalthia longifolia cv. pendula (Annonaceae) is native to the drier regions of India and is locally known as “Ashoka” and is commonly cultivated in Pakistan and Sri Lanka. This plant is used as an antipyretic agent in indigenous systems of medicine. Pharmacologic studies on the bark and leaves of this plant show effective antimicrobial activity, cytotoxic function, antiulcer activity, hypoglycemic activity, and hypotensive effect. The present article includes the detailed exploration of pharmacologic properties of P. longifolia in an attempt to provide a direction for further research.

Katkar, K. V.; Suthar, A. C.; Chauhan, V. S.

2010-01-01

58

The chemistry, pharmacologic, and therapeutic applications of Polyalthia longifolia.  

PubMed

Medicinal plants are nature's gift to human beings to lead a disease-free, healthy life. They play a vital role in preserving our health. India is one of the most medicoculturally diverse countries in the world, where the medicinal plant sector is part of a time-honored tradition that is respected even today. Medicinal plants are believed to be much safer and proved as elixir in the treatment of various ailments. In our country, more than 2000 medicinal plants are recognized. Polyalthia longifolia cv. pendula (Annonaceae) is native to the drier regions of India and is locally known as "Ashoka" and is commonly cultivated in Pakistan and Sri Lanka. This plant is used as an antipyretic agent in indigenous systems of medicine. Pharmacologic studies on the bark and leaves of this plant show effective antimicrobial activity, cytotoxic function, antiulcer activity, hypoglycemic activity, and hypotensive effect. The present article includes the detailed exploration of pharmacologic properties of P. longifolia in an attempt to provide a direction for further research. PMID:22228943

Katkar, K V; Suthar, A C; Chauhan, V S

2010-01-01

59

Isolation of a flavonoid, apigenin 7-O-glucoside, from Mentha longifolia (L.) Hudson subspecies longifolia and its genotoxic potency.  

PubMed

Mentha is a medicinal and aromatic plant belonging to the Lamiaceae family, which is widely used in food, flavor, cosmetic and pharmaceutical industries. Recently, it has been found that the use of Mentha as a pharmaceutical source is based on its phytochemical constituents that have far been identified as tannins, saponins, phenolic acids and flavonoids. This study was designed to evaluate the mutagenic and antimutagenic activities of apigenin 7-O-glucoside (A7G), a flavonoid isolated from Mentha longifolia (L.) Hudson subspecies longifolia (ML). The possible antimutagenic potential of A7G was examined against mutagens ethyl methanesulfonate and acridine in an eukaryotic cell system Saccharomyces cerevisiae and sodium azide in Salmonella typhimurium TA1535 and 9-aminoacridine in S. typhimurium TA1537. According to our findings, any concentrations of the A7G used did not show mutagenic activity but exerted strong antimutagenic activities at tested concentrations. The inhibition rates for the Ames test ranged from 27.2% (S. typhimurium TA1535: 0.4 ?M/plate) to 91.1% (S. typhimurium TA1537: 0.2 ?M/plate) and for the yeast deletion assay from 4% to 57.7%. This genotoxicological study suggests that a flavonoid from ML owing to antimutagenic properties is of great pharmacological importance and might be beneficial to industries producing food additives, cosmetics and pharmaceuticals products. PMID:23377117

Gulluce, Medine; Orhan, Furkan; Yanmis, Derya; Arasoglu, Tulin; Guvenalp, Zuhal; Demirezer, Lutfiye Omur

2013-02-13

60

The World of Jack London  

NSDL National Science Digital Library

Jack London's life included trips to the Yukon, a front-row seat at the San Francisco Earthquake of 1906 and many journeys aboard his beloved sailing vessel, the Snark. During his short life, London found time to write over a dozen novels, numerous short stories, and hundreds of articles on socialism and other weighty matters of his day. Later, he would also become the hero of another literary "Jack", who happened to enjoy wandering on the road and in various subterranean locales. Maintained by Dave Hartzell, this site is a virtual cornucopia of all things Jack London, including full-text version of his novels, rare articles penned by London, and copious amounts of information about his family and his ranch in the Sonoma Valley. Visitors can also look over a number of scholarly works related to London, including a complete bibliography of his poetry and the first English-language translation of Dr. Vil Bykov's two volume biography of London. Finally, visitors should not depart the site without taking a look at London's first published story, "Two Gold Bricks", which is also available here.

61

Hand Tool Vibration Associated with Jack Leg Drills, Jack Hammers and Slushers.  

National Technical Information Service (NTIS)

Vibration characteristics of jack leg drills, jack hammers and slushers were surveyed. Instrumentation and test procedures were described in a previously reported study. Information on overall acceleration levels and the total work per unit the for the to...

D. D. Reynolds

1980-01-01

62

Chlorinated iridoid glucosides from Veronica longifolia and their antioxidant activity.  

PubMed

From Veronica longifolia were isolated three chlorinated iridoid glucosides, namely, asystasioside E (6) and its 6-O-esters 6a and 6b, named longifoliosides A and B, respectively. The structures of 6a and 6b were proved by analysis of their spectroscopic data and by conversion to the catalpol ester verproside (5a) or to catalpol (5), respectively. The configuration of the previously known vanilloyl analogue, urphoside B, was shown to be the 6?-epimer (6c) of the structure originally reported. Longifoliosides A (6a) and B (6b) were found to exhibit radical-scavenging activity against nitric oxide, superoxide, and 2,2-diphenyl-1-picrylhydrazyl radicals. PMID:20806928

Jensen, Søren R; Gotfredsen, Charlotte H; Harput, U Sebnem; Saracoglu, Iclal

2010-09-24

63

Investigation of some biologic activities of Swertia longifolia Boiss  

PubMed Central

Swertia species are widespread in Eastern and Southern Asian countries and used in traditional medicine as anti-pyretic, analgesic, gastro and liver tonic. Among different species, only Swertia longifolia grows in Iran. In this investigation, antioxidant, cytotoxic and acetylcholinesterase inhibitory activities of S. longifolia have been studied. Aerial parts and roots of the plant were collected, dried and extracted with methanol 80% (total extract). Different extracts of the plant were obtained using hexane, chloroform, ethyl acetate, methanol, methanol:water (1:1) and water, respectively. Cytotoxic activity was determined by MTT assay on MDBK, HepG2, MCF7, HT29 and A549 cell lines. Antioxidant activity was measured by 2,2-diphenyl-1-picryl hydrazyl (DPPH) free radicals and acetylcholinesterase inhibitory (AChEI) effect was evaluated based on Ellman’s method in 96-well microplates.The results showed no cytotoxicity of the plant extracts on MDBK, HepG2, MCF7, HT29 and A549 cell lines up to 100 ?g/ml. All samples showed radical scavenging activity but methanol extract of aerial parts and ethyl acetate extract of the roots showed the highest effects.Total extract of the roots showed higher AChEI activity than the aerial parts. Among different extracts, chloroform and ethyl acetate extracts of the roots and chloroform and methanol:water extracts of the aerial parts were more potent in AChEI assay. It is concluded that aerial parts and roots of the plant are rich in antioxidant agents with no cytotoxicity on selected cell lines up to 100 ?g/ml. Moreover, since antioxidant and AChEI activity of compounds play an important role in the treatment of Alzheimer’s disorder, this plant might be a potential candidate for isolation of antioxidant and AChEI compounds which could be used as supportive treatment of Alzheimer’s disease.

Hajimehdipoor, H.; Esmaeili, S.; Shekarchi, M.; Emrarian, T.; Naghibi, F.

2013-01-01

64

Investigation of some biologic activities of Swertia longifolia Boiss.  

PubMed

Swertia species are widespread in Eastern and Southern Asian countries and used in traditional medicine as anti-pyretic, analgesic, gastro and liver tonic. Among different species, only Swertia longifolia grows in Iran. In this investigation, antioxidant, cytotoxic and acetylcholinesterase inhibitory activities of S. longifolia have been studied. Aerial parts and roots of the plant were collected, dried and extracted with methanol 80% (total extract). Different extracts of the plant were obtained using hexane, chloroform, ethyl acetate, methanol, methanol:water (1:1) and water, respectively. Cytotoxic activity was determined by MTT assay on MDBK, HepG2, MCF7, HT29 and A549 cell lines. Antioxidant activity was measured by 2,2-diphenyl-1-picryl hydrazyl (DPPH) free radicals and acetylcholinesterase inhibitory (AChEI) effect was evaluated based on Ellman's method in 96-well microplates.The results showed no cytotoxicity of the plant extracts on MDBK, HepG2, MCF7, HT29 and A549 cell lines up to 100 ?g/ml. All samples showed radical scavenging activity but methanol extract of aerial parts and ethyl acetate extract of the roots showed the highest effects.Total extract of the roots showed higher AChEI activity than the aerial parts. Among different extracts, chloroform and ethyl acetate extracts of the roots and chloroform and methanol:water extracts of the aerial parts were more potent in AChEI assay. It is concluded that aerial parts and roots of the plant are rich in antioxidant agents with no cytotoxicity on selected cell lines up to 100 ?g/ml. Moreover, since antioxidant and AChEI activity of compounds play an important role in the treatment of Alzheimer's disorder, this plant might be a potential candidate for isolation of antioxidant and AChEI compounds which could be used as supportive treatment of Alzheimer's disease. PMID:24082894

Hajimehdipoor, H; Esmaeili, S; Shekarchi, M; Emrarian, T; Naghibi, F

2013-10-01

65

14. MACHINERY DETAILS: CENTER WHEEL FRAME AND AXEL, JACK WHEEL ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

14. MACHINERY DETAILS: CENTER WHEEL FRAME AND AXEL, JACK WHEEL FRAME, JACK NUT HOUSING, JACK NUT, ETC. - Niantic River Swing Bridge, Spanning Niantic River between East Lyme & Waterford, Old Lyme, New London County, CT

66

Interaction between Jacked Piles in Calcareous Sediments.  

National Technical Information Service (NTIS)

Model tests on pairs of piles jacked into reconstituted calcareous sand have been performed to study the interaction behavior of these piles during jacking, static and cyclic loading. The tests have been performed on medium-dense and dense samples of calc...

R. H. Al-Douri H. G. Poulos

1992-01-01

67

A note on the Goodman Jack  

USGS Publications Warehouse

A Note on the Goodman Jack: Reconnaissance experiments, performed to evaluate the practical utility of the hard-rock variety of the Goodman Jack, reveal that the Hustrulid-T* correction adequately reconciles the discrepancy between the measured and true deformation modulus of the rock mass in the range of 30 to 50 gigapascals. ?? 1982 Springer-Verlag.

Swolfs, H. S.; Kibler, J. D.

1982-01-01

68

14 CFR 23.507 - Jacking loads.  

Code of Federal Regulations, 2013 CFR

...structure jacking points in the level attitude: (1) Vertical-load factor of 1.35 times the static reactions. (2) Fore, aft, and lateral load factors of 0.4 times the vertical static reactions. (b) The horizontal loads at the jack points...

2013-01-01

69

ESF GROUND SUPPORT - PROPOSED JACKING BRACKET EVALUATION  

SciTech Connect

This calculation applies to the Constructor's design of the proposed jacking bracket for the W6 x 20 steel set. The specific features of the jacking bracket evaluated in this analysis are the shear on the bracket bolts, and the effects of the applied moment on the W6 x 20 steel set beam segment.

Marvin D. Stine

1996-03-28

70

Portable walking beam pump jack  

SciTech Connect

This patent describes a portable walking beam pump jack for use in pumping liquids from an oil well. This jack consists of: an elongated frame having a longitudinal axis and front and rear ends, the frame also including first and second support seats; a towing receptacle, an axle connected transversely across the frame; ground engaging wheels connected to the axle for supporting the frame for rolling transportation; stabilizing means for securing the frame with respect to a ground location; a walking beam having a first end, a midportion and a second end, the second end being adapted for connection to a pumping rod; an engine mounted on the frame; a pair of arms counterweighted for balancing a pumping rod connected to the walking beam, a drive yoke, a support assembly foldably mounted on the frame and upon which the midportion of the walking beam is pivotally connected, the support assembly the arms and the drive yoke being foldable together, from a first, fixed position in which the walking beam arms and yoke are supported in a raised position for rocking in a pumping motion to a second, fixed position disposed downwardly and forwardly from the first fixed position and in which the walking beam arms and yoke are held in a lowered position for transportation; a front support and a hydraulic cylinder connected between the frame and the support assembly for moving the support assembly between the first, fixed position and the second fixed position.

Laney, R.N.

1986-02-25

71

Studies on the rheological properties and functional potentials of achi ( Brachystegea eurycoma) and ogbono ( Irvingia gabonesis) seed gums  

Microsoft Academic Search

Water soluble gums were extracted from seeds of achi (Brachystegea eurycoma) and Ogbono (Irvingia gabonesis). The rheological properties of each gum were studied at temperatures from between 10–70°C at 1.0, 1.5, 2.0, and 2.5% concentrations. The effects of small quantities of the gums on some of the quality characteristics of an ice cream mix were investigated. These characteristics were compared

A Uzomah; R. N Ahiligwo

1999-01-01

72

Superconformal field theory and Jack superpolynomials  

NASA Astrophysics Data System (ADS)

We uncover a deep connection between the {N} = {1} superconformal field theory in 2 D and eigenfunctions of the supersymmetric Sutherland model known as Jack super-polynomials (sJacks). Specifically, the singular vector at level rs/2 of the Kac module labeled by the two integers r and s are given explicitly as a sum of sJacks whose indexing diagrams are contained in a rectangle with r columns and s rows. As a second compelling evidence for the distinguished status of the sJack-basis in SCFT, we find that the degenerate Whittaker vectors (Gaiotto states) can be expressed as a remarkably simple linear combination of sJacks. As a consequence, we are able to reformulate the supersymmetric version of the (degenerate) AGT conjecture in terms of the combinatorics of sJacks. The closed-form formulas for the singular vectors and the degenerate Whittaker vectors, although only conjectured in general, have been heavily tested (in some cases, up to level 33/2). Both the Neveu-Schwarz and Ramond sectors are treated.

Desrosiers, Patrick; Lapointe, Luc; Mathieu, Pierre

2012-09-01

73

Central Calorimeter Support Cradle Jack Failure Analysis  

SciTech Connect

The Central Calorimeter and its support cradle are to be supported by either hydraulic or mechanical jacks. If hydraulics are used, each support will use two hydraulically coupled jacks with two out of the four supports hydraulically coupled giving the effect of a three point support system. If mechanical jacks are used, all four points are used for support. Figure 2 shows two examples of jack placement on a 3.5 inch support plate. These two support scenarios lead to five jack failure cases to be studied. This report deals with the way in which a 0.25 inch drop (failed jack) at one support affects the stresses in the cradle. The stresses from each failure case were analyzed in two ways. First, stress factors, defined as quotients of stress intensities of the failed case with respect to the static case, were generated and then, hand calculations similar to those in Engineering Note 3740.215-EN-14 were done using the reaction forces from the failed case.

Rudland, D.L.; /Fermilab

1987-04-10

74

Effects of Mentha longifolia essential oil on ruminal and abomasal longitudinal smooth muscle in sheep  

Microsoft Academic Search

Mentha longifolia is grown commercially for production of oils and leaves. For centuries, this plant has widely been used traditionally as a folk remedy for treatment of human and ruminant gastrointestinal complaints in the Northwest of Iran. The essential oil of the plant was extracted using hydrodistillation. In the present study a total of 12 constituents, representing 96.6% of the

Ghader Jalilzadeh-Amin; Massoud Maham; Bahram Dalir-Naghadeh; Farshad Kheiri

2012-01-01

75

Chemical Composition and Antifungal Activity of Arnica longifolia, Aster hesperius and Chrysothamnus nauseosus Essential Oils  

Technology Transfer Automated Retrieval System (TEKTRAN)

Essential oils from three different Asteraceae obtained by hydrodistillation of aerial parts were analyzed by gas chromatography (GC) and gas chromatography-mass spectrometry (GC/MS). Main compounds obtained from each taxon were found as follows: Arnica longifolia: carvacrol 37.3%, a-bisabolol 8.2%...

76

Isolation and identification of antimicrobial compound from Mentha longifolia L. leaves grown wild in Iraq  

Microsoft Academic Search

BACKGROUND: Mentha longifolia L. (Lamiaceae) leaves have been traditionally implemented in the treatment of minor sore throat and minor mouth or throat irritation by the indigenous people of Iraq, although the compounds responsible for the medicinal properties have not been identified. In the present study, an antimicrobial compound was isolated and characterized, and its biological activity was assessed. METHODS: The

Firas A Al-Bayati

2009-01-01

77

Molecular Evolution at the Self-Incompatibility Locus of Physalis longifolia (Solanaceae)  

Microsoft Academic Search

The simple codominant expression of the alleles at the self-incompatibility locus (S) of Solanaceae and their extraordinary spectrum of sequence diversity present an ideal case for understanding the molecular forces that shape the sequence polymorphism of genes involved in recognition reactions. Here, with unprecedented conspecific sequences of 33 Physalis longifolia S alleles, including 27 of their single introns, the tempo-spatial

Yingqing Lu

2002-01-01

78

Salt tolerance traits increase the invasive success of Acacia longifolia in Portuguese coastal dunes.  

PubMed

Salt tolerance of two co-occurring legumes in coastal areas of Portugal, a native species--Ulex europaeus, and an invasive species--Acacia longifolia, was evaluated in relation to plant growth, ion content and antioxidant enzyme activities. Plants were submitted to four concentrations of NaCl (0, 50, 100 and 200 mM) for three months, under controlled conditions. The results showed that NaCl affects the growth of both species in different ways. Salt stress significantly reduced the plant height and the dry weight in Acacia longifolia whereas in U. europaeus the effect was not significant. Under salt stress, the root:shoot ratio (W(R):W(S)) and root mass ratio (W(R):W(RS)) increased as a result of increasing salinity in A. longifolia but the same was not observed in U. europaeus. In addition, salt stress caused a significant accumulation of Na+, especially in U. europaeus, and a decrease in K+ content and K+/Na+ ratio. The activities of antioxidant enzymes were higher in A. longifolia compared to U. europaeus. In A. longifolia, catalase (CAT, EC 1.11.1.6) and glutathione reductase (GR, EC 1.6.4.2.) activities increased significantly, while ascorbate peroxidase (APX, EC 1.11.1.11) and peroxidase (POX, EC 1.11.1.7) activities remained unchanged in comparison with the control. In U. europaeus, NaCl concentration significantly reduced APX activity but did not significantly affect CAT, GR and POX activities. Our results suggest that the invasive species copes better with salinity stress in part due to a higher rates of CAT and GR activities and a higher K+/Na+ ratio, which may represent an additional advantage when competing with native species in co-occurring salty habitats. PMID:22543107

Morais, Maria Cristina; Panuccio, Maria Rosaria; Muscolo, Adele; Freitas, Helena

2012-03-30

79

Jack Rabbit Inc. Conducts Voluntary Nationwide Recall of Lot 2510 of Jack Rabbit Dietary Supplement Due to undeclared ingredient  

NASA Website

Jack Rabbit Inc. announced today that it is conducting a voluntary nationwide recall of one lot of the company's dietary supplement product sold under the following name: Jack Rabbit. The product was found to contain Sildenafil and Tadalafil.

80

21 CFR 133.154 - High-moisture jack cheese.  

Code of Federal Regulations, 2013 CFR

...2013-04-01 2013-04-01 false High-moisture jack cheese. 133.154 Section 133.154 Food...Related Products § 133.154 High-moisture jack cheese. High-moisture jack cheese conforms to the definition and...

2013-04-01

81

21 CFR 133.154 - High-moisture jack cheese.  

Code of Federal Regulations, 2010 CFR

...2010-04-01 2010-04-01 false High-moisture jack cheese. 133.154 Section 133.154 Food...Related Products § 133.154 High-moisture jack cheese. High-moisture jack cheese conforms to the definition and...

2010-04-01

82

21 CFR 133.154 - High-moisture jack cheese.  

Code of Federal Regulations, 2010 CFR

...2009-04-01 2009-04-01 false High-moisture jack cheese. 133.154 Section 133.154 Food...Related Products § 133.154 High-moisture jack cheese. High-moisture jack cheese conforms to the definition and...

2009-04-01

83

Jack London: A Life in Search of Love  

Microsoft Academic Search

This thesis is a study of the interrelation between Jack London's literary and romantic lives. The progression of Jack’s philosophy was the product of an intense competition between his inclinations for naturalism, realism, and romanticism. After he found right love with Charmian the naturalism that had seeped in during his tumultuous, younger years finally fell away. The struggle of that

Ian S Bain

2012-01-01

84

Lively Jack-O'-Lantern Still Life  

ERIC Educational Resources Information Center

Pumpkin carving is a favorite classroom activity. Around late October, the halls are filled with the sour smell of raw pumpkin innards, as parents, teachers and students are up to their elbows in yellowish strings and slime. These round, orange squash are transformed into jack-o'-lanterns that are placed around the school. The day after Halloween,…

Sanzaro, Christy

2010-01-01

85

Lively Jack-O'-Lantern Still Life  

ERIC Educational Resources Information Center

|Pumpkin carving is a favorite classroom activity. Around late October, the halls are filled with the sour smell of raw pumpkin innards, as parents, teachers and students are up to their elbows in yellowish strings and slime. These round, orange squash are transformed into jack-o'-lanterns that are placed around the school. The day after…

Sanzaro, Christy

2010-01-01

86

Jack London: The Paradox of Individualism.  

ERIC Educational Resources Information Center

|Because of their interest in naturalism and socialism, critics often overlook the major intellectual conflict in Jack London's work: the paradox of individualism. London regards society as affecting the individual in two ways: it either promotes individuality or it demands a conformity that undermines individualism. When society fails Buck in…

Deane, Paul

1968-01-01

87

Using jacks to simplify generator repairs  

SciTech Connect

This article discusses the experiences of British Columbia Hydro personnel in their efforts to rewind the generator at a 60 MW facility. Without an overhead crane installed, it was necessary to use hydraulic jacks to lift the stator, thus saving $400,000 (US) over the costs of renting a crane. The details of their setup are dsecribed herein.

Horne, J.V. [B.C. Hydro, Burnaby, British Columbia (Canada)

1994-12-31

88

Jack Gantos--Journal Keeper Extraordinaire.  

ERIC Educational Resources Information Center

|Presents an interview with author Jack Gantos, whose career spans almost 25 years. Notes how he spoke passionately about his craft and about supporting emerging writers. Discusses how avid journaling is one technique that he uses that could benefit anyone. (SG)|

Giorgis, Cyndi

2002-01-01

89

Autonomic dysfunction in a Jack Russell terrier.  

PubMed

A 4-year-old Jack Russell terrier was presented with an array of clinical signs suggestive of autonomic dysfunction. Many of the clinical signs were consistent with a diagnosis of dysautonomia; however, both chronicity and resolution of signs contradicted a diagnosis of this disease. PMID:21629424

Caines, Deanne; Pinard, Chantale L; Kruth, Stephen; Orr, Jeremy; James, Fiona

2011-03-01

90

Autonomic dysfunction in a Jack Russell terrier  

PubMed Central

A 4-year-old Jack Russell terrier was presented with an array of clinical signs suggestive of autonomic dysfunction. Many of the clinical signs were consistent with a diagnosis of dysautonomia; however, both chronicity and resolution of signs contradicted a diagnosis of this disease.

Caines, Deanne; Pinard, Chantale L.; Kruth, Stephen; Orr, Jeremy; James, Fiona

2011-01-01

91

Sir Jack Drummond, F.R.S  

Microsoft Academic Search

THE news of the tragic death of Sir Jack Drummond came as a severe shock to his many friends in America. Only after the initial paralysing numbness associated with the sporadic news flashes of his murder had worn off could the enormity of this crime be appreciated. Although the loss to the scientific world has been great, a deep feeling

H. D. Branion

1952-01-01

92

Appreciating Gantos' Jack Henry as an Archetype.  

ERIC Educational Resources Information Center

Examines the contemporary realism of the literary character Jack Henry, a middle school child, as representative of two classic literary elements, the quest cycle and the lone hero. Concludes that classic structures of plots and characteristics of hero offer many modern protagonists a shape for their realistic and ordinary adventures. (SG/47)

Watson, Jinx Stapleton

2001-01-01

93

Antioxidant Activity and Hepatoprotective Potential of Polyalthia longifolia and Cassia spectabilis Leaves against Paracetamol-Induced Liver Injury  

PubMed Central

In the present study, in vitro antioxidant, free radical scavenging capacity, and hepatoprotective activity of methanol extracts from Polyalthia longifolia and Cassia spectabilis were evaluated using established in vitro models such as ferric-reducing antioxidant power (FRAP), 2,2-diphenyl-1-picryl-hydrazyl (DPPH•), hydroxyl radical (OH•), nitric oxide radical (NO•) scavenging, metal chelating, and antilipidperoxidation activities. Interestingly, all the extracts showed considerable in vitro antioxidant and free radical scavenging activities in a dose-dependent manner when compared to the standard antioxidant which verified the presence of strong antioxidant compound in leaf extracts tested. Phenolic and flavonoid content of these extracts is significantly correlated with antioxidant capacity. Since P. longifolia extract was exhibited better in vitro antioxidant activities, it was subjected for in vivo hepatoprotective activity in paracetamol-intoxicated mice. Therapy of P. longifolia showed the liver protective effect on biochemical and histopathological alterations. Moreover, histological studies also supported the biochemical finding, that is, the maximum improvement in the histoarchitecture of the liver. Results revealed that P. longifolia leaf extract could protect the liver against paracetamol-induced oxidative damage by possibly increasing the antioxidant protection mechanism in mice. Our findings indicated that P. longifolia and C. spectabilis have potential as good sources of natural antioxidant/antiaging compounds.

Jothy, Subramanion L.; Aziz, Azlan; Chen, Yeng; Sasidharan, Sreenivasan

2012-01-01

94

Highest weight Macdonald and Jack polynomials  

NASA Astrophysics Data System (ADS)

Fractional quantum Hall states of particles in the lowest Landau levels are described by multivariate polynomials. The incompressible liquid states when described on a sphere are fully invariant under the rotation group. Excited quasiparticle/quasihole states are members of multiplets under the rotation group and generically there is a nontrivial highest weight member of the multiplet from which all states can be constructed. Some of the trial states proposed in the literature belong to classical families of symmetric polynomials. In this paper we study Macdonald and Jack polynomials that are highest weight states. For Macdonald polynomials, it is a (q, t)-deformation of the raising angular momentum operator that defines the highest weight condition. By specialization of the parameters we obtain a classification of the highest weight Jack polynomials. Our results are valid in the case of staircase and rectangular partition indexing the polynomials.

Jolicoeur, Th; Luque, J. G.

2011-02-01

95

Generalized clustering conditions of Jack polynomials at negative Jack parameter {alpha}  

SciTech Connect

We present several conjectures on the behavior and clustering properties of Jack polynomials at a negative parameter {alpha}=-(k+1/r-1), with partitions that violate the (k,r,N)- admissibility rule of [Feigin et al. [Int. Math. Res. Notices 23, 1223 (2002)]. We find that the ''highest weight'' Jack polynomials of specific partitions represent the minimum degree polynomials in N variables that vanish when s distinct clusters of k+1 particles are formed, where s and k are positive integers. Explicit counting formulas are conjectured. The generalized clustering conditions are useful in a forthcoming description of fractional quantum Hall quasiparticles.

Bernevig, B. Andrei [Princeton Center for Theoretical Physics, Princeton, New Jersey 08544 (United States); Department of Physics, Princeton University, Princeton, New Jersey 08544 (United States); Haldane, F. D. M. [Department of Physics, Princeton University, Princeton, New Jersey 08544 (United States)

2008-05-01

96

3. Historic American Buildings Survey Jack Maley, Photographer May 31, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

3. Historic American Buildings Survey Jack Maley, Photographer May 31, 1978 NORTHEAST (BACK) AND SOUTHEAST (SIDE) ELEVATIONS - Franklin Park Zoo, Elephant House, Seaver Street, Boston, Suffolk County, MA

97

4. Historic American Buildings Survey Jack Maley, Photographer May 31, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

4. Historic American Buildings Survey Jack Maley, Photographer May 31, 1978 SOUTHWEST (FRONT) AND SOUTHEAST (SIDE) ELEVATIONS - Franklin Park Zoo, Elephant House, Seaver Street, Boston, Suffolk County, MA

98

1. Historic American Buildings Survey Jack Maley, Photographer May 31, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

1. Historic American Buildings Survey Jack Maley, Photographer May 31, 1978 SOUTHWEST (FRONT) AND NORTHWEST (SIDE) ELEVATIONS - Franklin Park Zoo, Elephant House, Seaver Street, Boston, Suffolk County, MA

99

2. Historic American Buildings Survey Jack Maley, Photographer May 31, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

2. Historic American Buildings Survey Jack Maley, Photographer May 31, 1978 NORTHEAST (BACK) AND NORTHWEST (SIDE) ELEVATIONS - Franklin Park Zoo, Elephant House, Seaver Street, Boston, Suffolk County, MA

100

21 CFR 133.153 - Monterey cheese and monterey jack cheese.  

Code of Federal Regulations, 2010 CFR

... false Monterey cheese and monterey jack cheese. 133.153 Section 133.153...133.153 Monterey cheese and monterey jack cheese. (a) Description. (1) Monterey cheese, monterey jack cheese is the food prepared by...

2009-04-01

101

14 CFR 25.519 - Jacking and tie-down provisions.  

Code of Federal Regulations, 2013 CFR

...of this section at the most critical combinations of airplane weight and center of gravity. The maximum allowable load at each jack pad must be specified. (b) Jacking. The airplane must have provisions for jacking and must withstand the following...

2013-01-01

102

21 CFR 133.153 - Monterey cheese and monterey jack cheese.  

Code of Federal Regulations, 2010 CFR

... false Monterey cheese and monterey jack cheese. 133.153 Section 133.153...133.153 Monterey cheese and monterey jack cheese. (a) Description. (1) Monterey cheese, monterey jack cheese is the food prepared by...

2010-04-01

103

The acclimation potential of Acacia longifolia to water stress: implications for invasiveness.  

PubMed

The ability of an invasive species to establish and spread to new areas may depend on its ability to tolerate a broad range of environmental conditions. Due to climate change, increasing occurrences of extreme events such as droughts are expected in the Mediterranean region and invasive species may expand if they cope with water stress. Limited information is available on the responses of Acacia longifolia, one of the most aggressive plant species in Portuguese coastal sand dune ecosystems, to prolonged water stress. In this study, we exposed A. longifolia plants from two distinct populations, one from the wet (northern) and another from the dry (southern) climate regions of Portugal, to drought conditions, and monitored morphological, physiological and biochemical responses. One-month-old seedlings were submitted to three different water treatments which involved watering twice a week, every 7 days and every 10 days, respectively, for three months, under controlled conditions. Overall, the progressive drought stress significantly affected most of the growth parameters considered, except the root:shoot ratio. Water stress also increased the uptake of ions (Ca²?, Mg²?, K? and Na?) and N concentration. On the contrary, the C/N ratio decreased under water stress conditions. Isotopic analysis did not reveal significant differences in ?¹³C with water treatments but the same pattern was not observed in ?¹?N values. Compared with the wet climate population, the dry climate population showed somewhat differing responses to water stress, indicating a genetic difference between populations. These results provide insights into limitations and opportunities for establishment of A. longifolia in a drought-prone scenario. PMID:23017901

Morais, Maria Cristina; Freitas, Helena

2012-08-14

104

Piperitone from Mentha longifolia var. chorodictya Rech F. reduces the nitrofurantoin resistance of strains of enterobacteriaceae.  

PubMed

The diluted essential oil of Mentha longifolia (L.) var. chlorodictya Rech F. foliage enhanced the bactericidal activity of nitrofurantoin decreasing the minimum inhibitory concentration (MIC) of nitrofurantoin for nitrofurantoin-resistant strains of Enterobacteriaceae. Thin-layer chromatography (TLC) analysis of the essential oil detected a fraction (R(f) = 0.35, UV lambda(max) of 232.5), which was the most effective in enhancement of nitrofurantoin activity. Using gas liquid chromatography and known standards, the active fraction was identified as piperitone. 1 microl of the piperitone fraction decreased the MIC of nitrofurantoin 3-20 fold for the different strains of Enterobacteriaceae tested. PMID:15597306

Shahverdi, A R; Rafii, F; Tavassoli, F; Bagheri, M; Attar, F; Ghahraman, A

2004-11-01

105

Jack Mechanism Having Positive Stop Means for Its Crank Handle.  

National Technical Information Service (NTIS)

A jack mechanism having a crank handle that drives a linear motion control ball nut and threaded screw. Two rods are included to provide a positive stop in each direction of the jack's limit so as to prevent overrun of the mechanism.

W. Crockett B. Baird

1994-01-01

106

Advanced jack up rig breaking U.S. construction drought  

Microsoft Academic Search

A new heavy duty jack up, due in mid-1998, will be able to simultaneously drill and produce wells in harsher environments and deeper water than current jack ups in the worldwide fleet. Rowan Cos. Inc.`s Gorilla V is the only mobile offshore drilling unit (MODU) currently under construction in the US. Two more enhanced Gorilla design rigs are planned before

1997-01-01

107

Genetic population structure of mangrove jack, Lutjanus argentimaculatus (Forsskål)  

Microsoft Academic Search

Translocations of mangrove jack, Lutjanus argentimaculatus (Forsskål 1775), to increase angling oppor- tunities in artificial impoundments are foreshadowed in Queensland. To evaluate genetic population structure before translocations occur, mangrove jack were collected from three sites on the Queensland coast and from one site on the north-western coast of Western Australia. Allelic variation at four dinucleotide microsatellite loci was high: gene

Jennifer R. OvendenA; Raewyn StreetA

108

Genetic Diversity of Rhizobia Associated with Acacia longifolia in Two Stages of Invasion of Coastal Sand Dunes?  

PubMed Central

We examined the genetic diversity of root nodule bacteria associated with the Australian legume Acacia longifolia in two stages of invasion of a coastal sand dune system. All isolates belonged to the genus Bradyrhizobium. A higher diversity was found in the long-established trees. The results suggest the introduction of exotic bradyrhizobia with the plant.

Rodriguez-Echeverria, Susana; Crisostomo, Joao A.; Freitas, Helena

2007-01-01

109

Reptiles and Amphibians in Deep Canyons: The Big Jacks and Little Jacks Creek Drainages of Owyhee County, Idaho.  

National Technical Information Service (NTIS)

This study was designed primarily as a survey to determine presence of absence of reptiles and amphibians of the deep canyons of the Big Jacks and Little Jacks creek drainages, and to provide baseline data for future studies. Two methods of determining pr...

M. F. Gerber J. C. Munger A. Ames J. Stewart

1997-01-01

110

Advanced jack up rig breaking U.S. construction drought  

SciTech Connect

A new heavy duty jack up, due in mid-1998, will be able to simultaneously drill and produce wells in harsher environments and deeper water than current jack ups in the worldwide fleet. Rowan Cos. Inc.`s Gorilla V is the only mobile offshore drilling unit (MODU) currently under construction in the US. Two more enhanced Gorilla design rigs are planned before the year 2000. The enhanced Gorilla class jack up represents the most technologically advanced jack up unit constructed to date. The rigs are structurally designed to meet year-round weather challenges in the harshest geographical environments. Rising demand for drilling rigs, coupled with a dwindling fleet, is generating supply shortages around the world, particularly at the high-specification end of the market. Even increasing the historical retirement age from 20 to 25 years, rig attrition continues at a level of about 18 rigs per year. Apart from the jack up market per se, however, Rowan`s strategy in designing and building enhanced Gorillas is to improve existing jack up drilling technology and offer the versatility to operate as a drilling unit, a mobile production unit, or both simultaneously in either open water locations or alongside existing platforms. The paper discusses the market for these heavy jack-ups, the use of one on the Cohasset project in Nova Scotia, the Gorilla V and enhanced Gorillas, geographical range of use, and MOPU economics.

Kelly, P. [Rowan Companies Inc., Houston, TX (United States)

1997-03-10

111

Inactivation of jack bean urease by allicin.  

PubMed

Allicin--diallyl thiosulfinate--is the main biologically active component of freshly crushed garlic. Allicin was synthesized as described elsewhere and was tested for its inhibitory ability against jack bean urease in 20 mM phosphate buffer, pH 7.0 at 22 degrees C. The results indicate that allicin is an enzymatic inactivator. The loss of urease activity was irreversible, time- and concentration dependent and the kinetics of the inactivation was biphasic; each phase, obeyed pseudo-first-order kinetics. The rate constants for inactivation were measured for the fast and slow phases and for several concentrations of allicin. Thiol reagents, and competitive inhibitor (boric acid) protected the enzyme from loss of enzymatic activity. The studies demonstrate that urease inactivation results from the reaction between allicin and the SH-group, situated in the urease active site (Cys592). PMID:14692509

Juszkiewicz, Adam; Zaborska, Wies?awa; Sepio?, Janusz; Góra, Maciej; Zaborska, Anna

2003-10-01

112

Stein's method, Jack measure, and the Metropolis algorithm  

Microsoft Academic Search

The one parameter family of Jack(alpha) measures on partitions is an\\u000aimportant discrete analog of Dyson's beta ensembles of random matrix theory.\\u000aExcept for special values of alpha=1\\/2,1,2 which have group theoretic\\u000ainterpretations, the Jack(alpha) measure has been difficult if not intractable\\u000ato analyze. This paper proves a central limit theorem (with an error term) for\\u000aJack(alpha) measure which works

Jason E. Fulman

2004-01-01

113

Jack polynomial fractional quantum Hall states and their generalizations  

NASA Astrophysics Data System (ADS)

In the study of fractional quantum Hall states, a certain clustering condition involving up to four integers has been identified. We give a simple proof that particular Jack polynomials with ?=-(r-1)/(k+1), (r-1) and (k+1) relatively prime, and with partition given in terms of its frequencies by [n0k0k0k⋯0m] satisfy this clustering condition. Our proof makes essential use of the fact that these Jack polynomials are translationally invariant. We also consider nonsymmetric Jack polynomials, symmetric and nonsymmetric generalized Hermite and Laguerre polynomials, and Macdonald polynomials from the viewpoint of the clustering.

Baratta, Wendy; Forrester, Peter J.

2011-02-01

114

Isolation and identification of antimicrobial compound from Mentha longifolia L. leaves grown wild in Iraq  

PubMed Central

Background Mentha longifolia L. (Lamiaceae) leaves have been traditionally implemented in the treatment of minor sore throat and minor mouth or throat irritation by the indigenous people of Iraq, although the compounds responsible for the medicinal properties have not been identified. In the present study, an antimicrobial compound was isolated and characterized, and its biological activity was assessed. Methods The compound was isolated and characterized from the extracted essential oil using different spectral techniques: TLC, FTIR spectra and HPLC. Antimicrobial activity of the compound was assessed using both disc diffusion and microdilution method in 96 multi-well microtiter plates. Results A known compound was isolated from the essential oil of the plant and was identified as (-) menthol. The isolated compound was investigated for its antimicrobial activity against seven selected pathogenic and non-pathogenic microorganisms: Staphylococcus aureus, Streptococcus mutans, Streptococcus faecalis, Streptococcus pyogenis, Lactobacillus acidophilus, Pseudomonas aeruginosa and the yeast Candida albicans. Menthol at different concentrations (1:1, 1:5, 1:10, 1:20) was active against all tested bacteria except for P. aeruginosa, and the highest inhibitory effect was observed against S. mutans (zone of inhibition: 25.3 mm) using the disc diffusion method. Minimal inhibitory concentration MIC values ranged from 15.6–125.0 ?g/ml, and the most promising results were observed against S. aureus and S. mutans (MIC 15.6 ?g/ml) while, S. faecalis, S. pyogenis and L. acidophilus ranked next (MIC 31.2 ?g/ml). Furthermore, menthol achieved considerable antifungal activity against the yeast C. albicans (zone of inhibition range: 7.1–18.5 mm; MIC: 125.0). Conclusion The isolation of an antimicrobial compound from M. longifolia leaves validates the use of this plant in the treatment of minor sore throat and minor mouth or throat irritation.

Al-Bayati, Firas A

2009-01-01

115

17. INTERIOR, INSPECTION PITS, OVERHEAD CRANE SUPPORT AND CAR JACKING ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

17. INTERIOR, INSPECTION PITS, OVERHEAD CRANE SUPPORT AND CAR JACKING PADS, FACING EAST - Delaware, Lackawanna & Western Railroad Freight & Rail Yard, Multiple Unit Light Inspection Shed, New Jersey Transit Hoboken Terminal Rail Yard, Hoboken, Hudson County, NJ

116

26. Photocopy of Details for Jacking 81 ft. Truss, dated ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

26. Photocopy of Details for Jacking 81 ft. Truss, dated 1943. Original located at Florida Department of Transportation. - Caryville Bridge, State Route 10 (US 90) Spanning Choctawhatchee River, Caryville, Washington County, FL

117

Model Fractional Quantum Hall States and Jack Polynomials  

SciTech Connect

We describe an occupation-number-like picture of fractional quantum Hall states in terms of polynomial wave functions characterized by a dominant occupation-number configuration. The bosonic variants of single-component Abelian and non-Abelian fractional quantum Hall states are modeled by Jack symmetric polynomials (Jacks), characterized by dominant occupation-number configurations satisfying a generalized Pauli principle. In a series of well-known quantum Hall states, including the Laughlin, Read-Moore, and Read-Rezayi, the Jack polynomials naturally implement a ''squeezing rule'' that constrains allowed configurations to be restricted to those obtained by squeezing the dominant configuration. The Jacks presented in this Letter describe new trial uniform states, but it is yet to be determined to which actual experimental fractional quantum Hall effect states they apply.

Bernevig, B. Andrei [Princeton Center for Theoretical Physics, Princeton, New Jersey 08544 (United States); Department of Physics, Princeton University, Princeton, New Jersey 08544 (United States); Haldane, F. D. M. [Department of Physics, Princeton University, Princeton, New Jersey 08544 (United States)

2008-06-20

118

1. Historic American Buildings Survey Jack E. Boucher, for CFA, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

1. Historic American Buildings Survey Jack E. Boucher, for CFA, 1970 SOUTHEAST CORNER AND MASSACHUSETTS AVE., FACADE - Clarence Moore House, 1746 Massachusetts Avenue Northwest, Washington, District of Columbia, DC

119

2. Historic American Buildings Survey Jack E. Boucher for CFA, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

2. Historic American Buildings Survey Jack E. Boucher for CFA, 1970 STAIR DETAIL AT FIRST- SECOND- FLOOR LEVEL - Wilkins House, 1700 Massachusetts Avenue Northwest, Washington, District of Columbia, DC

120

Model Fractional Quantum Hall States and Jack Polynomials  

NASA Astrophysics Data System (ADS)

We describe an occupation-number-like picture of fractional quantum Hall states in terms of polynomial wave functions characterized by a dominant occupation-number configuration. The bosonic variants of single-component Abelian and non-Abelian fractional quantum Hall states are modeled by Jack symmetric polynomials (Jacks), characterized by dominant occupation-number configurations satisfying a generalized Pauli principle. In a series of well-known quantum Hall states, including the Laughlin, Read-Moore, and Read-Rezayi, the Jack polynomials naturally implement a “squeezing rule” that constrains allowed configurations to be restricted to those obtained by squeezing the dominant configuration. The Jacks presented in this Letter describe new trial uniform states, but it is yet to be determined to which actual experimental fractional quantum Hall effect states they apply.

Bernevig, B. Andrei; Haldane, F. D. M.

2008-06-01

121

9. View looking east down cantilevered walkway. Jack Boucher, photographer, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

9. View looking east down cantilevered walkway. Jack Boucher, photographer, 1977 - Neshanic Station Lenticular Truss Bridge, State Route 567, spanning South Branch of Raritan River, Neshanic Station, Somerset County, NJ

122

4. View looking north showing bridge in elevation. Jack Boucher, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

4. View looking north showing bridge in elevation. Jack Boucher, photographer, 1977 - Neshanic Station Lenticular Truss Bridge, State Route 567, spanning South Branch of Raritan River, Neshanic Station, Somerset County, NJ

123

7. Straighton view of east portal. Jack Boucher, photographer, 1977 ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

7. Straight-on view of east portal. Jack Boucher, photographer, 1977 - Neshanic Station Lenticular Truss Bridge, State Route 567, spanning South Branch of Raritan River, Neshanic Station, Somerset County, NJ

124

Fine Structure of Bacteroids in Root Nodules of Vigna sinensis, Acacia longifolia, Viminaria juncea, and Lupinus angustifolius  

PubMed Central

Dart, P. J. (University of Sydney, Sydney, Australia), and F. V. Mercer. Fine structure of bacteroids in root nodules of Vigna sinensis, Acacia longifolia, Viminaria juncea, and Lupinus angustifolius. J. Bacteriol. 91:1314–1319.—In nodules of Vigna sinensis, Acacia longifolia, and Viminaria juncea, membrane envelopes enclose groups of bacteroids. The bacteroids often contain inclusion granules and electron-dense bodies, expand little during development, and retain their rod form with a compact, central nucleoid area. The membrane envelope may persist around bacteroids after host cytoplasm breakdown. In nodules of Lupinus angustifolius, the membrane envelopes enclose only one or two bacteroids, which expand noticeably during development and change from their initial rod structure. Images

Dart, P. J.; Mercer, F. V.

1966-01-01

125

Discovery of a new class of HMG-CoA reductase inhibitor from Polyalthia longifolia as potential lipid lowering agent.  

PubMed

Bioassay guided fractionation of the ethanolic extract of Polyalthia longifolia var. pendula, led to the discovery of the clerodane diterpene, 16?-hydroxycleroda-3, 13 (14) Z-dien-15, 16-olide (1), as a new structural class of HMG-CoA reductase inhibitor. Importantly, the in vivo effects of 1 corroborated well with its molecular docking analysis and also with its hamster plasma pharmacokinetics. PMID:21872367

Sashidhara, Koneni V; Singh, Suriya P; Srivastava, Anuj; Puri, Anju; Chhonker, Yashpal S; Bhatta, Rabi S; Shah, Priyanka; Siddiqi, Mohammad Imran

2011-08-12

126

A validated method for analysis of Swerchirin in Swertia longifolia Boiss. by high performance liquid chromatography  

PubMed Central

Swertia spp. (Gentianaceae) grow widely in the eastern and southern Asian countries and are used as traditional medicine for gastrointestinal disorders. Swerchirin, one of the xanthones in Swertia spp., has many pharmacological properties, such as, antimalarial, antihepatotoxic, and hypoglycemic effects. Because of the pharmacological importance of Swerchirin in this investigation, it was purified from Swertia longifolia Boiss. as one of the main components and quantified by means of a validated high performance liquid chromatography (HPLC) technique. Aerial parts of the plant were extracted with acetone 80%. Phenolic and non-phenolic constituents of the extract were separated from each other during several processes. The phenolic fraction was injected into the semi-preparative HPLC system, which consisted of a C18 column and a gradient methanol: 0.1% formic acid mode. Using this method, we were able to purify six xanthones from the plant, in order to use them as standard materials. The analytical method was validated for Swerchirin as one of the most important components of the plant, with more pharmacological activities according to the validation parameters, such as, selectivity, linearity (r2 > 0.9998), precision (?3.3), and accuracy, which were measured by the determination of recovery (98-107%). The limits of detection and quantization were found to be 2.1 and 6.3 ?g/mL, respectively. On account of the speed and accuracy, the UV-HPLC method may be used for quantitative analysis of Swerchirin.

Shekarchi, M.; Hajimehdipoor, H.; Khanavi, M.; Adib, N.; Bozorgi, M.; Akbari-Adergani, B.

2010-01-01

127

29 CFR 1926.305 - Jacks-lever and ratchet, screw, and hydraulic.  

Code of Federal Regulations, 2013 CFR

...provide a firm foundation, the base of the jack shall be blocked or cribbed. Where there...possibility of slippage of the metal cap of the jack, a wood block shall be placed between...lubricated at regular intervals. (iv) Each jack shall be thoroughly inspected at...

2013-07-01

128

In-Vitro Activity of Saponins of Bauhinia Purpurea, Madhuca Longifolia, Celastrus Paniculatus and Semecarpus Anacardium on Selected Oral Pathogens  

PubMed Central

Objective: Dental caries, periodontitis and other mucosal diseases are caused by a complex community of microorganisms. This study aimed to investigate the antimicrobial properties of saponins of four important oil yielding medicinal plant extracts on selected oral pathogens that are involved in such diseases. Materials and Methods: Saponins were extracted from Bauhinia purpurea, Madhuca longifolia, Celastrus paniculatus and Semecarpus anacardium and purified. Antimicrobial properties of these saponins against Streptococcus mutans, Streptococcus mitis, Streptococcus salivarius, Staphylococcus aureus and Lactobacillus acidophilus were determined using well diffusion method. The minimum inhibitory concentration (MIC) was determined as the lowest concentration of saponins inhibiting bacterial growth after 14 h of incubation at 37°C. The bactericidal activity was evaluated using the viable cell count method. Results: The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of Madhuca longifolia saponin on Streptococcus mutans MTCC 890, Streptococcus mitis and Staphylococcus aureus was 18.3 ± 0.15/34.4 ± 0.24 ?g/ml, 19.0 ± 0.05/32.2 ± 0.0 ?g/ml and 21.2 ± 0.35/39.0 ± 0.30 ?g/ml, respectively and Bauhinia purpurea saponin on Streptococcus mutans MTCC 890, Staphylococcus aureus and Lactobacillus acidophilus was 26.4 ± 0.20/43.0 ± 0.40 ?g/ml, 29.0 ± 0.30/39.6 ± 0.12 ?g/ml and 20.2 ± 0.05/36.8 ± 0.23 ?g/ml, respectively. Conclusion: The strong antimicrobial activity of Madhuca longifolia and Bauhinia purpurea may be due to the presence of complex triterpenoid saponins, oleanane type triterpenoid glycosides or atypical pentacyclic triterpenoid saponin. Hence, these extracted saponins may be used in food and oral products to prevent and control oral diseases.

Jyothi, K. S.; Seshagiri, M.

2012-01-01

129

Research Revisited: Jack Holmes' Substrata-Factor Theory of Reading.  

ERIC Educational Resources Information Center

Argues that reading professionals should not reject or neglect theory merely because it is old and offers Jack Holmes' Substrata Factor Theory as a case in point. Reviews the statistical, neurological, and psychological models in Holmes' theory and points out their potential for stimulating further theoretical thought. (FL)

Downing, John

1981-01-01

130

Insulin Accelerates Seedling Growth of Canavalia ensiformis (Jack bean)  

Microsoft Academic Search

Insulin is a 6 kDa peptide hormone that activates several metabolic processes and cellular growth. Germination studies showed that insulin, vanadyl sulphate (an insulin mimetic compound), tyrphostin (an inhibitor of insulin receptor kinase activity), pinitol (a chiro inositol analogue) and glucose were able to accelerate Canavalia ensiformis (Jack bean) seedling radicle and epicotyl development. Immunofluorescence microscopy analysis showed that proteins

Antônia E. A. Oliveira; Elane S. Ribeiro; Maura da Cunha; Valdirene M. Gomes; Kátia V. S. Fernandes; José Xavier-Filho

2004-01-01

131

A Unified View of Determinantal Expansions for Jack Polynomials  

Microsoft Academic Search

Recently Lapointe et. al. (3) have expressed Jack Polynomials as determinants in monomial symmetric functions m. We express these polynomials as determinants in elementary symmetric functions e, showing a fundamental symmetry between these two expansions. Moreover, both expansions are obtained indierently by applying the Calogero-Sutherland operator in physics or quasi Laplace Beltrami operators arising from dierential geometry and statistics. Examples

Leigh Roberts

2001-01-01

132

Pentagon After Action Reports: The Jack Taylor Debate.  

ERIC Educational Resources Information Center

|In requesting after action reports--Pentagon-prepared summaries of interviews between reporters and Pentagon officials--investigative reporter Jack Taylor both aroused Pentagon opposition and created a rift between the Pentagon press corps and outside reporters. To investigate whether the full-time Pentagon press corps was reporting as…

Abbott, Stan

133

7. Photocopy by Jack Boucher, VIEW OF FORT TOTTEN, LOOKING ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

7. Photocopy by Jack Boucher, VIEW OF FORT TOTTEN, LOOKING NORTHWEST, 1880s. Original photograph at State Historical Society of North Dakota, file No. B 370 - Fort Totten, 12 miles southwest of Devils Lake City off Route 57, Devils Lake, Ramsey County, ND

134

Filling Holes with Words: An Interview with Jack Gantos.  

ERIC Educational Resources Information Center

|This interview with Jack Gantos, an author who writes books for young adults, focuses on how he uses his own personal experiences in his books. Discusses memories of his father and his childhood, drug-smuggling activities and the resulting jail time, and student reactions to his books. (LRW)|

Shoemaker, Joel

2003-01-01

135

A.J. (Jack) Meadows: A Biographical Note.  

ERIC Educational Resources Information Center

Presents a brief sketch of A.J. (Jack) Meadows's career. Notes that he has written many significant articles and books in information science and related fields, many of them of seminal importance. Highlights his contributions to the field and to the many people who have worked with him. (AEF)

Line, Maurice B.

2000-01-01

136

Wastewater Treatment and Land Treatment at Jacks Point Development, Queenstown  

Microsoft Academic Search

The Jacks Point development is adjacent to Lake Wakatipu, near Queenstown, in southern New Zealand. It is resort style with several large residential zones, separate individual large house sites, a lodge and restaurant, a golf course and clubhouse, and a commercial village. Queenstown has a very high temporary peak population, with permanent residents averaging 1.6 people per household and peaking

Rob Potts; Ken Gousmett B

137

46 CFR 134.150 - Liftboat-jacking systems.  

Code of Federal Regulations, 2012 CFR

...control system for a liftboat jacking system must be designed so that loss of power, loss of pressure in the hydraulic system, or low hydraulic-fluid level will activate a visible and audible alarm at the operating station and will not result in...

2012-10-01

138

A.J. (Jack) Meadows: A Biographical Note.  

ERIC Educational Resources Information Center

|Presents a brief sketch of A.J. (Jack) Meadows's career. Notes that he has written many significant articles and books in information science and related fields, many of them of seminal importance. Highlights his contributions to the field and to the many people who have worked with him. (AEF)|

Line, Maurice B.

2000-01-01

139

Jack Rabbit Pretest Shadowplate Drawings For TATB IHE Model Development  

Microsoft Academic Search

The Jack Rabbit Pretest (PT) series consisted of 5 focused hydrodynamic experiments 2021E PT3, PT4, PT5, PT6, and PT7. They were fired in March and April of 2008 at the Contained Firing Facility, Site 300, Lawrence Livermore National Laboratory, Livermore, California. These experiments measured deadzone formation and impulse gradients created during the detonation of TATB based insensitive high explosive. When

M M Hart; D W McDaniel

2009-01-01

140

Implementing Industrial Multi-agent Systems Using JACK  

Microsoft Academic Search

JACKTM is an implementation of the Belief\\/Desire\\/Intention model of rational agency with extensions to support the design and execution of agent systems where team structures, real-time control, repeata bility and linkage with legacy code are critical. This chapter presents the JACK TM multi-agent systems platform. The chapter begins with a discussion of agent programming concepts as they relate to JACKTM,

Rick Evertsz; Martyn Fletcher; Richard Jones; Jacquie Jarvis; James Brusey; Sandy Dance

2003-01-01

141

Jack deformations of Plancherel measures and traceless Gaussian random matrices  

Microsoft Academic Search

We study random partitions $\\\\lambda=(\\\\lambda_1,\\\\lambda_2,...,\\\\lambda_d)$ of $n$ whose length is not bigger than a fixed number $d$. Suppose a random partition $\\\\lambda$ is distributed according to the Jack measure, which is a deformation of the Plancherel measure with a positive parameter $\\\\alpha>0$. We prove that for all $\\\\alpha>0$, in the limit as $n \\\\to \\\\infty$, the joint distribution of scaled

Sho Matsumoto

2008-01-01

142

Ectomycorrhizal fungal succession in jack pine stands following wildfire  

Microsoft Academic Search

SUMMARY A study was conducted to determine if ectomycorrhizal fungi in an age sequence of jack pine (Pinus banksiana Lamb.) stands which had regenerated following wildfire disturbance followed a successional pattern. Ectomycorrhizal development and number of symbionts were assessed in the forest floor and 0-20 cm deep mineral soil in 6, 41, 65 and 122-yr-old stands by conducting a macrofungal

SUZANNE VISSER

1995-01-01

143

Hadean diamonds in zircon from Jack Hills, Western Australia.  

PubMed

Detrital zircons more than 4 billion years old from the Jack Hills metasedimentary belt, Yilgarn craton, Western Australia, are the oldest identified fragments of the Earth's crust and are unique in preserving information on the earliest evolution of the Earth. Inclusions of quartz, K-feldspar and monazite in the zircons, in combination with an enrichment of light rare-earth elements and an estimated low zircon crystallization temperature, have previously been used as evidence for early recycling of continental crust, leading to the production of granitic melts in the Hadean era. Here we present the discovery of microdiamond inclusions in Jack Hills zircons with an age range from 3,058 +/- 7 to 4,252 +/- 7 million years. These include the oldest known diamonds found in terrestrial rocks, and introduce a new dimension to the debate on the origin of these zircons and the evolution of the early Earth. The spread of ages indicates that either conditions required for diamond formation were repeated several times during early Earth history or that there was significant recycling of ancient diamond. Mineralogical features of the Jack Hills diamonds-such as their occurrence in zircon, their association with graphite and their Raman spectroscopic characteristics-resemble those of diamonds formed during ultrahigh-pressure metamorphism and, unless conditions on the early Earth were unique, imply a relatively thick continental lithosphere and crust-mantle interaction at least 4,250 million years ago. PMID:17713532

Menneken, Martina; Nemchin, Alexander A; Geisler, Thorsten; Pidgeon, Robert T; Wilde, Simon A

2007-08-23

144

Teaching Scientists to Fish, as Inspired by Jack Dymond  

NASA Astrophysics Data System (ADS)

It is almost inconceivable that as Jack Dymond's graduate student for eight years, I never mastered the skill of fly-fishing, a pursuit so near and dear to his heart. In fact, Jack did inspire me, not to tie flies and cast, but eventually to teach fellow scientists to fish. The work I'll present - connecting scientists and educators to achieve societal benefit - is profoundly influenced by Jack's dedication to applying scientific understanding and critical thinking to societal issues. With colleagues in the Centers for Ocean Sciences Education Excellence (COSEE), http://www.cosee.net/, I enable scientists to efficiently make meaningful contributions to educational outreach. A key goal of the multi-Center, national COSEE Network is helping scientists build the skills and acquire the resources needed to share their science with diverse audiences. At Scripps, we are piloting an innovative approach to helping scientists meet funding agencies' broader impact requirements. Key elements of the approach include: 1) services to identify educational outreach options that best fit scientists' research and preferences; 2) assistance establishing partnerships with educational outreach providers who have the skills and resources to develop and implement effective programs and exhibits; and 3) nuts and bolts (line and fly) assistance writing proposal text, drafting budgets, and coordinating with institutional business offices to ensure that the proposed educational outreach effort is compelling and sufficiently funded. Where does the fishing lesson come in? We facilitators of scientist-educator partnerships empower scientists to launch enduring collaborations. Once comfortable working with top-notch educational organizations, scientists can tap these resources, project after project, often with little or no additional involvement on our part. Our initial investment in brokering the relationships is richly rewarded. By helping scientists get started, it's as if we are teaching them to fish, rather than merely giving them fish.

Franks, S. E.

2004-12-01

145

Method for installing offshore jack-up structures  

SciTech Connect

A method for installing an offshore jack-up structure having a buoyant platform to be towed and legs, is described comprising the steps of: (a) providing a pair of ultrasonic transmitter-receivers on a longitudinal and horizontal center line of the platform, (b) providing the ultrasonic transmitters on a longitudinal and horizontal center line of a target structure to which the rig is approached; and (c) receiving signals transmitted from the ultrasonic transmitters of the target structure by the ultrasonic transmitter-receivers of the platform to determine a relative distance between the rig and the target structure.

Kawagoe, A.; Akiyama, J.; Tateishi, H.

1988-04-05

146

Remembering Community Inclusion: Stories From the Life of Jack Eldon Baker  

ERIC Educational Resources Information Center

|Jack Eldon Baker was born, lived, and died in Gilbert, Arkansas. The story of his life is retold in excerpts from a memorial publication published by the people of the town. This article also makes the case that his story is an example of community inclusion. Through the voices of those who knew him, we see Jack as a person who gave to the…

Millington, Michael J.

2005-01-01

147

Qualitative Research, Semiotics, North Beach, South of Markey, Jack London, and the Grateful Dead.  

ERIC Educational Resources Information Center

|Looks at educational research from a macro perspective, advocating semiotics as the foundation for qualitative research in education. Presents myths and disputations and an open-ended conclusion via the kaleidoscopic interpretations of Jack London, Phil Dick, Jack Kerouac, the Grateful Dead, and an assortment of street characters. (Author/VWL)|

Shank, Gary

1999-01-01

148

Investigating the Jack the Ripper Case: Engaging Students in a Criminal Investigations Class through Active Learning  

ERIC Educational Resources Information Center

|The present study examines the utilization of a class project involving the Jack the Ripper murders. Students enrolled in a criminal investigations class were required to investigate the five canonical murders associated with the infamous serial killer known as Jack the Ripper and the murders that occurred in London during 1888. This paper…

Gutierrez, Daniel; Kazmi, Syed

2010-01-01

149

Searching the Silver Trail: Charles van Onselen, Joe Silver and Jack the Ripper  

Microsoft Academic Search

Objective: South African historian Charles van Onselen's discovery of the identity of Jack the Ripper is described. The author was consulted by van Onselen during the writing of the latter's book, “The Fox and the Flies: Joe Silver, Racketeer and Psychopath”, which suggested the identity of Jack the Ripper and was first published earlier this year.Conclusions: van Onselen's investigations into

Robert Kaplan

2007-01-01

150

Remembering Community Inclusion: Stories From the Life of Jack Eldon Baker  

ERIC Educational Resources Information Center

Jack Eldon Baker was born, lived, and died in Gilbert, Arkansas. The story of his life is retold in excerpts from a memorial publication published by the people of the town. This article also makes the case that his story is an example of community inclusion. Through the voices of those who knew him, we see Jack as a person who gave to the…

Millington, Michael J.

2005-01-01

151

Topological color codes on Union Jack lattices: a stable implementation of the whole Clifford group  

SciTech Connect

We study the error threshold of topological color codes on Union Jack lattices that allow for the full implementation of the whole Clifford group of quantum gates. After mapping the error-correction process onto a statistical mechanical random three-body Ising model on a Union Jack lattice, we compute its phase diagram in the temperature-disorder plane using Monte Carlo simulations. Surprisingly, topological color codes on Union Jack lattices have a similar error stability to color codes on triangular lattices, as well as to the Kitaev toric code. The enhanced computational capabilities of the topological color codes on Union Jack lattices with respect to triangular lattices and the toric code combined with the inherent robustness of this implementation show good prospects for future stable quantum computer implementations.

Katzgraber, Helmut G. [Department of Physics and Astronomy, Texas A and M University, College Station, Texas 77843-4242 (United States); Theoretische Physik, ETH Zurich, CH-8093 Zurich (Switzerland); Bombin, H. [Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5 (Canada); Andrist, Ruben S. [Theoretische Physik, ETH Zurich, CH-8093 Zurich (Switzerland); Martin-Delgado, M. A. [Departamento de Fisica Teorica I, Universidad Complutense, 28040 Madrid (Spain)

2010-01-15

152

5. 3/4 view looking southwest. Jack Boucher, photographer, 1977 ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

5. 3/4 view looking southwest. Jack Boucher, photographer, 1977 - Neshanic Station Lenticular Truss Bridge, State Route 567, spanning South Branch of Raritan River, Neshanic Station, Somerset County, NJ

153

RELIABILITY ANALYSIS OF JACK-UP PLATFORMS BASED ON FATIGUE DEGRADATION  

Microsoft Academic Search

Generally, jack-up structures are used for production drilling and exploration of hydrocarbons. The combination of mobility and the behavior as a fixed structure in operational conditions has made it an important structure in the offshore industry over the last 40 years. When a jack-up structure has been in operation for a great part of its original design-life and intention is

Naser Shabakhty; Hotze Boonstra

2002-01-01

154

The research of the evaluation system for the sealability of hydraulic supports and jacks’ seals  

Microsoft Academic Search

In order to enhance the sealing quality and assemble efficiency of hydraulic supports, the evaluation system for the sealability\\u000a of the hydraulic support and jack’s seals was established through the testing and experimenting technology in respects, such\\u000a as seals’ dimensions, reasonable amounts of compression, sealability, life, resistance to pressure, etc. Through life detecting\\u000a test of the seal, found the longest

Xi Zhang; Jie Liu; Zong-yong Wang; Hong-peng Liu

2011-01-01

155

In-flight performance analysis of the CHAMP BlackJack GPS Receiver  

Microsoft Academic Search

JPL's BlackJack receiver currently represents the most widely used geodetic grade GPS receiver for space applications. Using data from the CHAMP science mission, the in-flight performance of the BlackJack receiver has been assessed and the impact of various software updates performed during the 2.5 years since launch is described. Key aspects of the study comprise the channel allocation, anomalous data points,

Oliver Montenbruck; Remco Kroes

2003-01-01

156

Jacking mechanism for upper internals structure of a liquid metal nuclear reactor  

DOEpatents

A jacking mechanism for raising the upper internals structure of a liquid metal nuclear reactor which jacking mechanism uses a system of gears and drive shafts to transmit force from a single motor to four mechanically synchronized ball jacks to raise and lower support columns which support the upper internals structure. The support columns have a pin structure which rides up and down in a slot in a housing fixed to the reactor head. The pin has two locking plates which can be rotated around the pin to bring bolt holes through the locking plates into alignment with a set of bolt holes in the housing, there being a set of such housing bolt holes corresponding to both a raised and a lowered position of the support column. When the locking plate is so aligned, a surface of the locking plate mates with a surface in the housing such that the support column is then supported by the locking plate and not by the ball jacks. Since the locking plates are to be installed and bolted to the housing during periods of reactor operation, the ball jacks need not be sized to react the large forces which occur or potentially could occur on the upper internals structure of the reactor during operation. The locking plates react these loads. The ball jacks, used only during refueling, can be smaller, which enable conventionally available equipment to fulfill the precision requirements for the task within available space.

Gillett, James E. (Greensburg, PA); Wineman, Arthur L. (Greensburg, PA)

1984-01-01

157

Multi-function magnetic jack control drive mechanism  

DOEpatents

A multi-function magnetic jack control drive mechanism for controlling a nuclear reactor is provided. The mechanism includes an elongate pressure housing in which a plurality of closely spaced drive rods are located. Each drive rod is connected to a rod which is insertable in the reactor core. An electromechanical stationary latch device is provided which is actuatable to hold each drive rod stationary with respect to the pressure housing. An electromechanical movable latch device is also provided for each one of the drive rods. Each movable latch device is provided with a base and is actuatable to hold a respective drive rod stationary with respect to the base. An electromechanical lift device is further provided for each base which is actuatable for moving a respective base longitudinally along the pressure housing. In this manner, one or more drive rods can be moved in the pressure housing by sequentially and repetitively operating the electromechanical devices. Preferably, each latch device includes a pair of opposed latches which grip teeth located on the respective drive rod. Two, three, or four drive rods can be located symmetrically about the longitudinal axis of the pressure housing.

Bollinger, Lawrence R. (Schenectady, NY); Crawford, Donald C. (Scotia, NY)

1986-01-01

158

Multi-function magnetic jack control drive mechanism  

DOEpatents

A multi-function magnetic jack control drive mechanism for controlling a nuclear reactor is provided. The mechanism includes an elongate pressure housing in which a plurality of closely spaced drive rods are located. Each drive rod is connected to a rod which is insertable in the reactor core. An electromechanical stationary latch device is provided which is actuatable to hold each drive rod stationary with respect to the pressure housing. An electromechanical movable latch device is also provided for each one of the drive rods. Each movable latch device is provided with a base and is actuatable to hold a respective drive rod stationary with respect to the base. An electromechanical lift device is further provided for each base which is actuatable for moving a respective base longitudinally along the pressure housing. In this manner, one or more drive rods can be moved in the pressure housing by sequentially and repetitively operating the electromechanical devices. Preferably, each latch device includes a pair of opposed latches which grip teeth located on the respective drive rod. Two, three, or four drive rods can be located symmetrically about the longitudinal axis of the pressure housing.

Bollinger, L.R.; Crawford, D.C.

1983-10-06

159

Stress analysis of jacks, frame and bearing connections, and drill rod for core sampler truck No. 2  

SciTech Connect

This analysis evaluates the structural design adequacy of several components and connections for the rotary mode core sampler truck (RMCST) No. 2. This analysis was requested by the Characterization Equipment Group (WHC 1994a). The components addressed in this report are listed below: front jack assembly and connection to the truck chassis; rear jack assembly and connection to the truck chassis; center outrigger jacks and connection to the truck chassis; lower frame assembly and connection to the truck chassis; bolt connections for bearing plate assembly (for path of maximum load); traverse slide brackets and mounting of the traverse jack cylinders; and drill rod (failure loads).

Ziada, H.H.

1995-02-28

160

Carbon fluxes in a young, naturally regenerating jack pine ecosystem  

NASA Astrophysics Data System (ADS)

Within the FLUXNET network of tower stations for performing long-term measurements of CO2 exchange between forest ecosystems and the atmosphere, most research has focused on mature forests that are strong carbon sinks. Nevertheless, it is just as valuable to quantify fluxes from recently disturbed forests so that we can recognize and predict the impact of disturbance on carbon fluxes. We measured carbon fluxes and microclimatic variables within a naturally regenerating, young (12-14 years of age) jack pine ecosystem in northern Michigan. During the months June to October of 2001-2003, this ecosystem exhibited a low net uptake of approximately 17.8-18.3 g C m-2 5 months-1. Soil respiration was independently measured and then modeled on the basis of soil temperature and soil moisture. Model estimates of soil respiration were 627, 583, and 681 g C m-2 5 months-1 from June to October in 2001, 2002, and 2003, respectively. Net ecosystem exchange (NEE) and soil respiration were inversely correlated in midsummer (r = -0.6, p = 0.001) during the period of lowest NEE (greatest uptake) and highest soil respiration rates. In the spring, NEE and soil respiration were positively correlated (r = 0.4, p = 0.01). During the fall, when soil temperatures remained fairly steady and air temperatures fluctuated, this coefficient between NEE and soil respiration declined to an average -0.25 (p = 0.2). Our results indicate that 12-14 years following disturbance this ecosystem displays a small net uptake during the June to October months but respiratory losses during the snow season (mid-October to April) could possibly counterbalance this carbon gain.

Euskirchen, EugéNie S.; Pregitzer, Kurt S.; Chen, Jiquan

2006-01-01

161

Spin-singlet quantum Hall states and Jack polynomials with a prescribed symmetry  

NASA Astrophysics Data System (ADS)

We show that a large class of bosonic spin-singlet Fractional Quantum Hall model wavefunctions and their quasihole excitations can be written in terms of Jack polynomials with a prescribed symmetry. Our approach describes new spin-singlet quantum Hall states at filling fraction ?=2k2r-1 and generalizes the (k,r) spin-polarized Jack polynomial states. The NASS and Halperin spin-singlet states emerge as specific cases of our construction. The polynomials express many-body states which contain configurations obtained from a root partition through a generalized squeezing procedure involving spin and orbital degrees of freedom. The corresponding generalized Pauli principle for root partitions is obtained, allowing for counting of the quasihole states. We also extract the central charge and quasihole scaling dimension, and propose a conjecture for the underlying CFT of the (k,r) spin-singlet Jack states.

Estienne, Benoit; Bernevig, B. Andrei

2012-04-01

162

Early Archean crustal evolution of the Jack Hills Zircon source terrane inferred from Lu-Hf, 207Pb/206Pb, and ?18O systematics of Jack Hills zircons  

NASA Astrophysics Data System (ADS)

Several lines of isotopic evidence - the most direct of which is from Hadean Jack Hills zircons - suggest a very early history of crust formation on Earth that began by about 4.5 Ga. To constrain both the fate of the reservoir for this crust and the nature of crustal evolution in the sediment source region of the Jack Hills, Western Australia, during the early Archean, we report here initial 176Hf/177Hf ratios and ?18O systematics for <4 Ga Jack Hills zircons. In contrast to the significant number of Hadean zircons which contain highly unradiogenic 176Hf/177Hf requiring a near-zero Lu/Hf reservoir to have separated from the Earth's mantle by 4.5 Ga, Jack Hills zircons younger than ca. 3.6 Ga are more radiogenic than -13&z.epsiv; (CHUR) at 3.4 Ga in contrast to projected values at 3.4 Ga of -20&z.epsiv; for the unradiogenic Hadean reservoir indicating that some later juvenile addition to the crust is required to explain the more radiogenic younger zircons. The shift in the Lu-Hf systematics together with a narrow range of mostly mantle-like ?18O values among the <3.6 Ga zircons (in contrast to the spread towards sedimentary ?18O among Hadean samples) suggests a period of transition between 3.6 and 4 Ga in which the magmatic setting of zircon formation changed and the highly unradiogenic low Lu/Hf Hadean crust ceased to be available for intracrustal reworking. Constraining the nature of this transition provides important insights into the processes of crustal reworking and recycling of the Earth's Hadean crust as well as early Archean crustal evolution.

Bell, Elizabeth A.; Harrison, T. Mark; McCulloch, Malcolm T.; Young, Edward D.

2011-09-01

163

The acylated protein derivatives of Canavalia ensiformis (jack bean): A study of functional characteristics  

Microsoft Academic Search

Protein concentrate was prepared from jack bean (JNP) and it was modified by acylation using acetic (JAP) and succinic anhydrides (JSP). Proximate analyses revealed that moisture and ash content increased following acetylation and succinylation, while both acetylation and succinylation reduced percentage crude fat and protein. Acetylation and succinylation reduced protein solubility in the acidic pH range below the isoelectric point

O. S. Lawal; K. O. Adebowale

2006-01-01

164

Closing the Science-Policy Gap. A Conversation with Pediatrician Jack P. Shonkoff. Perspectives  

ERIC Educational Resources Information Center

The National Scientific Council on the Developing Child was founded to close the gap between what we know and what we do to promote the healthy development of young children. When scientific knowledge is ignored rather than used to inform early childhood policy and practices, our children pay a very high price. Council Chair Jack P. Shonkoff,…

National Scientific Council on the Developing Child, 2006

2006-01-01

165

A POWER SUPPLY FOR FRICTION GRIP, MAGNETIC JACK, NUCLEAR REACTOR CONTROL ROD DRIVE MECHANISM  

Microsoft Academic Search

A circuit designed for energizing and controlling twenty-four friction ; grip, magnetic jack type rod drive mechanisms is described. The circuit ; incorporates all desired control features while still remaining simple to operate. ; A considerable amount of thought was given to possible switching conditions, both ; manual and automatic, Which might arise and would, if not anticipated in the

Cantor

1958-01-01

166

DESIGN AND TEST ANALYSIS OF THE MAGNETIC JACKING POSITIVE LATCH CONTROL ROD DRIVE MECHANISM  

Microsoft Academic Search

Testing of the Latch Type Magnetic Jack Control Rod Drive Mechanism was ; undertaken to determine its feasibility for application in the Yankee Atomic ; Electric pressurized water reactor. The rod drive mechanism, which will be weld ; mounted to the top of the reactor, is a hermetically sealed unit. The inherent ; advantages of this feature include (1) uniform

L. J. Balog; A. A. Bishop; T. F. Widmer

1959-01-01

167

Closing the Science-Policy Gap. A Conversation with Pediatrician Jack P. Shonkoff. Perspectives  

ERIC Educational Resources Information Center

|The National Scientific Council on the Developing Child was founded to close the gap between what we know and what we do to promote the healthy development of young children. When scientific knowledge is ignored rather than used to inform early childhood policy and practices, our children pay a very high price. Council Chair Jack P. Shonkoff,…

National Scientific Council on the Developing Child, 2006

2006-01-01

168

Some Legends Never Die: Jack Briggs and His Legacy of Leadership.  

ERIC Educational Resources Information Center

|Describes the life and work of the late Jack Briggs, who helped build Fond du Lac Tribal and Community College (FDLTCC) (Minnesota), the only college of its kind in the nation. Reports that FDLTCC has established a scholarship fund in Briggs' honor. (NB)|

Schultz, Judy

2002-01-01

169

Trace Elements Reveal a Possible Link Between Jack Hills Detrital Zircons and the Late Heavy Bombardment  

NASA Astrophysics Data System (ADS)

The Jack Hills detrital zircons range in age 4.3-3.0 Ga. At ca. 3.9 Ga the record contains a population that appears to have recrystallized during a major thermal event. This may be circumstantial terrestrial evidence for the Late Heavy Bombardment.

Bell, E. A.; Harrison, T. M.

2012-03-01

170

The Future of the American Faculty: An Interview with Martin J. Finkelstein and Jack H. Schuster  

ERIC Educational Resources Information Center

|Martin J. Finkelstein and Jack H. Schuster have teamed up to continue tracing the changes taking place in faculty work with their Project on the American Faculty. They have published The New Academic Generation: A Profession in Transformation (1998), co-authored with Robert Seal, and are preparing a new manuscript to appear in 2004 with a working…

Rice, R. Eugene

2004-01-01

171

Jack Mezirow and Perspective Transformation: Toward an Understanding of Irish Educational Policy within a European Framework  

ERIC Educational Resources Information Center

|This article considers important junctures in the evolution of Irish educational policy. For this purpose, the author makes appropriate references to the theoretical framework of Jack Mezirow. In particular, Mezirow's treatment of "meaning schemes", "meaning perspectives" and "paradigm shifts" are applied toward a better understanding of recent…

Murphy, Timothy

2007-01-01

172

Jack Kerins oral history interview by Michael Hirsh, April 21, 2008  

Microsoft Academic Search

This is an oral history interview with Holocaust concentration camps liberator Jack Kerins. Kerins was a member of the 63rd Infantry Division, which liberated Landsberg on April 29, 1945. The division went over in late 1944 and saw its first combat in the Battle of the Bulge and proceeded through Germany on the Rhineland Campaign, where Kerins was given a

Jack Kerins; Michael Hirsh

2008-01-01

173

Summers in the Skagit: Gary Synder, Jack Kerouac, and the Language of the Lookout  

Microsoft Academic Search

During the summers of 1952 and 1953, Gary Snyder spent over 120 days as a Forest Service fire lookout on remote peaks in the Skagit wilderness of the northern Cascades. In 1956, Snyder, blacklisted from government work, encouraged his new friend Jack Kerouac to take advantage of the same Forest Service opportunity, and as Snyder set out to study Buddhism

John J. Morrell

174

A Life In and Out of AnthropologyAn Interview with Jack Sargent Harris  

Microsoft Academic Search

? This article presents an interview with Jack Sargent Harris (1912—2008), an anthropologist who earned his PhD at Columbia University in 1940 and was one of the first US anthropologists to do fieldwork in Africa, showing an interest in materialistic theoretical approaches. As a merchant seaman before becoming an anthropologist he traveled the globe, including trips to the Soviet Union,

Kevin A. Yelvington

2008-01-01

175

The Jellyfish hunter—Jack Barnes: A pioneer medical toxinologist in Australia  

Microsoft Academic Search

Dr Jack Handyside Barnes (1922–1985) was one of the small and elite group of Pacific marine toxinologists whose work was characterised by an uncompromising rugged persona, a focussed resolve to solve challenging problems of human clinical envenomation, and who conducted curiosity-driven research under conditions of scientific isolation. He was a pioneering advocate for the preservation of marine heritage, particularly that

John Pearn; Peter Fenner

2006-01-01

176

Reexamining Jack Johnson, Stereotypes, and America's White Press, 1908–1915  

Microsoft Academic Search

This historical-critical study seeks to better situate the Jack Johnson controversy amid contemporary theories of race, culture, and the news media. The study invokes theories of Whiteness to better demonstrate how dominant White interests, as reflected by the White news media, contained the boxer by consistently defining him on their terms. This perspective contrasts with pervasive accounts that position Johnson

Phillip J. Hutchison

2012-01-01

177

Three-jack solution to obtain a truly stable and symmetric tensile concrete test  

Microsoft Academic Search

Testing equipment, made up of three orthogonally arranged jacks, which is able to apply a purely tensile load to a concrete specimen is proposed. The secondary flexural stresses are kept under control and constitute a degree of error comparable to the values allowed for normal testing apparatus. When the crack formation tends to produce asymmetry in the system, the counter-reaction

A. Carpinteri; F. Maradei

1995-01-01

178

The Female Artist in the Film Version of Jack Kerouac's The Subterraneans  

Microsoft Academic Search

Examining the 1960 film version of Beat writer Jack Kerouac's The Subterraneans, this article explores screenwriter Robert Thom's creation of a female artist for the film, considering the character's challenges to traditional female roles, her reflection of Beat philosophies, as well as her return to those traditions.

Steve Wilson

2007-01-01

179

"Delays and Vexation": Jack London and the Russo-Japanese War.  

ERIC Educational Resources Information Center

|Contributes to scholarship on journalism history and censorship by discussing Jack London's efforts as a war correspondent to cover the Russo-Japanese War in Korea and Manchuria in 1904. Focuses on the difficulties he encountered as a result of systematic and highly restrictive censorship by the Japanese. (SR)|

Sweeney, Michael S.

1998-01-01

180

Writing revolt: Historical representations of Jack Cade's 1450 rebellion in the London Chronicles  

Microsoft Academic Search

The English chronicles of fifteenth-century London remain a politically charged body of quasi-historical literature, a loose canon of fragmented narratives where life and government in late medieval England are represented in sometimes vivid prose. The Jack Cade rebellion of 1450 was an event that brought the capital of Great Britain to within a few days of total conflagration, and if

Alexander Lee Kaufman

2006-01-01

181

Seasonal variation of carbon dioxide exchange rates above and below a boreal jack pine forest  

Microsoft Academic Search

Fluxes of carbon dioxide were measured above and below a boreal jack pine stand with the eddy covariance method. Our goal was to examine the seasonal variation of the net carbon dioxide exchange between the ecosystem and the atmosphere and to understand the relative contributions of the vegetation and rhizosphere to these fluxes.Over the course of the growing season the

Dennis D. Baldocchi; Christoph A. Vogel; Brad Hall

1997-01-01

182

29 CFR 1926.305 - Jacks-lever and ratchet, screw, and hydraulic.  

Code of Federal Regulations, 2010 CFR

...Labor 8 2010-07-01 2010-07-01 false Jacks-lever and ratchet, screw, and hydraulic. 1926.305 Section...CONSTRUCTION Tools-Hand and Power § 1926.305 Jacksâlever and ratchet, screw, and hydraulic. (a) General...

2010-07-01

183

29 CFR 1926.305 - Jacks-lever and ratchet, screw, and hydraulic.  

Code of Federal Regulations, 2010 CFR

...Labor 8 2009-07-01 2009-07-01 false Jacks-lever and ratchet, screw, and hydraulic. 1926.305 Section...CONSTRUCTION Tools-Hand and Power § 1926.305 Jacksâlever and ratchet, screw, and hydraulic. (a) General...

2009-07-01

184

High Off the Page: Representing the Drug Experience in the Work of Jack Kerouac and Allen Ginsberg  

Microsoft Academic Search

This article explores attempts by Jack Kerouac and Allen Ginsberg to transcribe their drug experiences onto the written page. Utilizing both Maurice Merleau-Ponty's work on intersubjective communication and Gilles Deleuze and Felix Guattari's conception of the \\

Erik Mortenson

185

Historical wildlife dynamics on Dugway Proving Ground: population and disease trends in jack rabbits over two decades. [Lepus californicus  

SciTech Connect

In an effort to determine whether US Army activities on the Dugway Proving Ground (DPG) have had an impact on resident wildlife, intensive studies have been conducted on the biology and ecology of the black-tailed jack rabbit (Lepus californicus) since 1965. in addition, the incidence of endemic diseases in several species of resident wildlife on the DPG have been studied from the late 1950s through the mid-1970s. The objectives of this report are to: (1) compile and summarize the jack rabbit data and some of the disease information that is presently contained only in annual reports; (2) compare the DPG jack rabbit data to data available on other jack rabbit populations; and (3) analyze the data for unusual or unexplained fluctuations in population densities or in incidence of disease.

Eberhardt, L.E.; Van Voris, P.

1986-08-01

186

Offshore foundation systems for resource recovery: Assessing the three-dimensional response of jack-up platforms  

Microsoft Academic Search

Self-installing mobile jack-ups platforms retain a dominate role in the exploration of offshore oil and gas in water depths\\u000a up to around 120 m. However, significant challenges in assessing their stability and dynamic performance under large storm\\u000a loading remain. For instance, their long slender truss-work legs and large inverted conical spudcan footings cause the natural\\u000a period of the jack-up to

Mark J. Cassidy

2011-01-01

187

Changes in Mitochondrial Properties Associated with Chloroplast Development in Jack Bean (Canavalia ensiformis [L] DC.) 1  

PubMed Central

Procedures were developed to isolate actively respiring mitochondria from jack bean (Canavalia ensiformis [L.] DC.) leaves and cotyledons. Consistent respiratory control values of about 2 for succinate oxidation were obtained in preparations from etiolated cotyledons. Jack bean mitochondria oxidized malate with high respiratory control (2 to 5) and ADP/O (up to 2.8). Mitochondria purified from greening leaves and cotyledons exhibited rapid increases in respiratory control for up to 4 hours of light exposure followed by a decrease in activity. ADP/O values remained constant at about 1.2 while oxygen consumption per unit mitochondrial protein increased constantly during the first 14 hours of greening in preparations from cotyledons. The changes in mitochondrial respiratory activity during greening were correlated with the reversible appearance of mitochondria in the condensed conformation observed by electron microscopy. Both isolated mitochondrial pellets and cotyledon mitochondria in situ were shown to exhibit these changes in conformation during greening. Images

Bourque, Don P.; Naylor, Aubrey W.

1972-01-01

188

Dynamic analysis method of offshore jack-up platforms in regular and random waves  

NASA Astrophysics Data System (ADS)

A jack-up platform, with its particular structure, showed obvious dynamic characteristics under complex environmental loads in extreme conditions. In this paper, taking a simplified 3-D finite element dynamic model in extreme storm conditions as research object, a transient dynamic analysis method was proposed, which was under both regular and irregular wave loads. The steps of dynamic analysis under extreme conditions were illustrated with an applied case, and the dynamic amplification factor (DAF) was calculated for each response parameter of base shear, overturning moment and hull sway. Finally, the structural response results of dynamic and static were compared and analyzed. The results indicated that the static strength analysis of the Jack-up Platforms was not enough under the dynamic loads including wave and current, further dynamic response analysis considering both computational efficiency and accuracy was necessary.

Yu, Hao; Li, Xiaoyu; Yang, Shuguang

2012-03-01

189

Seed-mediated growth of jack-shaped gold nanoparticles from cyclodextrin-coated gold nanospheres.  

PubMed

Branched gold nanoparticles were prepared by a seed-mediated approach using per-6-thio-6-deoxy-?-cyclodextrin capped gold nanospheres as seeds and a growth medium similar to those commonly employed to prepare gold nanorods, containing AgNO3, ascorbic acid and cetyltrimethylammonium bromide. Novel jack-shaped gold nanoparticles (102-105 nm) were obtained at a specific range of Ag(+) ion concentrations (62-102 ?M). The crystalline structure of these nanoparticles was confirmed by high-resolution transmission electron microscopy. The influence of the perthiolated ?-cyclodextrin on the successful preparation of gold nanojacks was demonstrated. The jack-shaped gold nanoparticles showed strong absorption in the near infrared region and excellent catalytic activity for the electrochemical oxidation of H2O2. PMID:23959027

Sánchez, Alfredo; Díez, Paula; Villalonga, Reynaldo; Martínez-Ruiz, Paloma; Eguílaz, Marcos; Fernández, Iñigo; Pingarrón, José M

2013-10-21

190

Purification, crystallization and preliminary X-ray analysis of urease from jack bean (Canavalia ensiformis).  

PubMed

Plant urease is a seed protein that is common in most legumes. It is also common in many bacteria and fungi and several species of yeast. Urease allows organisms to use exogenous and internally generated urea as a nitrogen source by catalyzing the hydrolysis of urea to ammonia and carbon dioxide. Urease from jack bean meal was purified to electrophoretic homogeneity using a series of steps involving acetone precipitation and size-exclusion and ion-exchange chromatography. The jack bean urease was crystallized and the resulting crystals diffracted to 2.05 A resolution using synchrotron radiation. The crystals belonged to the hexagonal space group P6(3)22, with unit-cell parameters a = b = 138.57, c = 198.36 A. PMID:19724141

Balasubramanian, Anuradha; Ponnuraj, Karthe

2009-08-26

191

Nontrivial ferrimagnetism of the Heisenberg model on the Union Jack strip lattice  

NASA Astrophysics Data System (ADS)

We study the ground-state properties of the S = 1/2 antiferromagnetic Heisenberg model on the Union Jack strip lattice by using the exact-diagonalization and density matrix renormalization group methods. We confirm a region of a magnetization state intermediate between the Néel-like spin liquid state and the conventional ferrimagnetic state of a Lieb-Mattis type. In the intermediate state, we find that the spontaneous magnetization changes gradually with respect to the strength of the inner interaction. In addition, the local magnetization clearly shows an incommensurate modulation with long-distance periodicity in the intermediate magnetization state. These characteristic behaviors lead to the conclusion that the intermediate magnetization state is a non-Lieb-Mattis ferrimagnetic one. We also discuss the relationship between the ground-state properties of the S = 1/2 antiferromagnetic Heisenberg model on the original Union Jack lattice and those on our strip lattice.

Shimokawa, Tokuro; Nakano, Hiroki

2013-08-01

192

Compendium of basins for the potential applicability of Jack W. McIntyre`s patented tool  

SciTech Connect

Geraghty & Miller, Inc. of Midland, Texas conducted geological and hydrological feasibility studies of the potential applicability of Jack W. McIntyre`s patented tool for the recovery of natural gas from coalbed formations in the San Juan, Powder River, Greater Green River, Piceance, Black Warrior, Appalachian and Michigan basins. Results from the surveys indicated that geology dominated research efforts for many of the basins. Limited information exists on the hydrology and water quality of the basins. All of the basins contain some potential for the use of Jack McIntyre`s patented production process. This process is designed specifically to separate produced water and produced gas in a downhole environment and may allow for more efficient and economical development of coalbed methane resources in this area.

Reed, P.D.

1994-03-01

193

Physicochemical characteristics and thermal properties of chemically modified jack bean ( Canavalia ensiformis) starch  

Microsoft Academic Search

Starch isolated from jack bean was subjected to chemical modification through oxidation, acetylation and acid thinning. Moisture content, ash, protein, fat, fibre, amylose and pH reduced after chemical modifications. Wide angle X-ray diffractograms showed conventional ‘C’ pattern, characteristic of legume starches. Except increase in intensity observed in acid thinned starch (Atjs), no significant differences were observed between the X-ray pattern

O. S. Lawal; K. O. Adebowale

2005-01-01

194

Physicochemical characterization of lima bean ( Phaseolus lunatus) and Jack bean ( Canavalia ensiformis) fibrous residues  

Microsoft Academic Search

Some physicochemical, physiological and functional characteristics of Jack bean (Canavalia ensiformis) and lima bean (Phaseolus lunatus) fibrous residues, obtained as a by-product during the protein and starch extraction process were evaluated. The C. ensiformis residues had higher crude fibre (22.6%), total dietary fibre (55.8%) and insoluble dietary fibre (52.4%) contents than the P. lunatus (crude fibre, 12.8%; total dietary fibre,

David Betancur-Ancona; Gwendolyne Peraza-Mercado; Yolanda Moguel-Ordoñez; Sonia Fuertes-Blanco

2004-01-01

195

Application of Probabilistic Models to the Response Analysis of Jack-Ups  

Microsoft Academic Search

Confidence in the long-term use of jack-up platforms in deep water and harsh environments requires appropriate models for their assessment under dynamic loading conditions. In this paper probabilistic models are used to develop further understanding of this assessment. Particular emphasis is placed on achieving a balanced approach in considering the non-linearities and uncertainties in the structure, foundations and wave loading.

M. J. Cassidy; G. T. Houlsby; R. Eatock Taylor

196

Simulated acid rain effects on Jack Pine seedling establishment and nutrition  

Microsoft Academic Search

A greenhouse study examined the effects of simulated acid rain on jack pine (Pinus banksiana Lamb.) seedling development and the Grayling sand (Typic Udipsamments) growth medium. Five rain pH levels (2.0, 2.5, 3.0, 4.0, 4.7) and two soil horizons (A\\/E, Bw1) were included as levels of factors. Soil pH decreased only at rain pH 3.0 and below. Exchangeable Ca and

N. W. MacDonald; J. B. Jr. Hart; P. V. Nguyen

2009-01-01

197

A kinetic study of jack-bean urease denaturation by a new dithiocarbamate bismuth compound  

NASA Astrophysics Data System (ADS)

A kinetic study concerning enzymatic inhibitory effect of a new bismuth dithiocarbamate complex on jack-bean urease is reported. A neural network approach is used to solve the ill-posed inverse problem arising from numerical treatment of the subject. A reaction mechanism for the urease denaturation process is proposed and the rate constants, relaxation time constants, equilibrium constants, activation Gibbs free energies for each reaction step and Gibbs free energies for the transition species are determined.

Menezes, D. C.; Borges, E.; Torres, M. F.; Braga, J. P.

2012-10-01

198

New Plant Growth Regulators Protect Photosynthesis and Enhance Growth Under Drought of Jack Pine Seedlings  

Microsoft Academic Search

.   To determine whether natural plant growth regulators (PGRs) can enhance drought tolerance and the competitive ability of\\u000a transplanted seedlings, 1.5-year-old jack pine (Pinus banksana Lamb.) seedlings were treated with homobrassinolide, salicylic acid, and two polyamines, spermine and spermidine, triacontanol,\\u000a abscisic acid (ABA), and the synthetic antioxidant, Ambiol. PGRs were fed into the xylem for 7 days and plants were

L. R. Rajasekaran; T. J. Blake

1999-01-01

199

Origins and Dispersal of Cultivated Vanilla ( Vanilla planifolia Jacks. [Orchidaceae]) 1  

Microsoft Academic Search

Origins and Dispersal of Cultivated Vanilla (Vanilla planifolia\\u000a Jacks. [Orchidaceae]). Vanilla is a clonally propagated crop originating from Mesoamerica. Information regarding the circumstances under which\\u000a vanilla cultivation began is incomplete. Presumably, the Totonac people of Papantla (north-central Veracruz, Mexico) were\\u000a the earliest to cultivate vanilla; however, the oldest reports of vanilla use relate to the pre-Columbian Maya of southeastern\\u000a Mexico\\/Central

Pesach Lubinsky; Séverine Bory; Juan Hernández Hernández; Seung-Chul Kim; Arturo Gómez-Pompa

2008-01-01

200

Responses of mycorrhizal jack pine ( Pinus banksiana ) seedlings to NaCl and boron  

Microsoft Academic Search

In earlier studies, we established that mycorrhizal associations protect plants against salt stress. However, elevated boron\\u000a levels are often present in saline soils and little is known about the effects of boron on salt resistance of mycorrhizal\\u000a plants. In the present study, we inoculated jack pine (Pinus banksiana) seedlings with Hebeloma sp., Suillus tomentosus and Wilcoxina mikolae var. mikolae to

Mónica Calvo Polanco; Janusz J. Zwiazek; Melanie D. Jones; Michael D. MacKinnon

2008-01-01

201

Essential Oils of Etlingera elatior (Jack) R. M. Smith and Etlingera littoralis (Koenig) Giseke  

Microsoft Academic Search

The essential oils obtained by hydrodistillation of the leaves, rhizomes and roots of Etlingera elatior (Jack) R. M. Smith and a white-flowered variety known as Thai queen, and Etlingera littoralis (Koenig) Giseke were analyzed by capillary GC and GC\\/MS. The oils of E. elatior were dominated by mono- and sesquiterpenoids, with the major components being myrcene (13.5%), ?-humulene (11.8%) and

K. C. Wong; Y. Sivasothy; P. L. Boey; H. Osman; B. Sulaiman

2010-01-01

202

Tom Thumb and Jack the Giant-Killer: Two Arthurian Fairytales?  

Microsoft Academic Search

This study examines the chapbook tales of Tom Thumb and Jack the Giant-Killer. The earliest recorded forms of these stories are discussed and it is contended that the common dismissal of their Arthurian elements as unimportant background—Arthur's Britain as a variant of “Once upon a time”—is unhelpful. Rather, both arguably embody and illustrate important points about the nature of the

Thomas Green

2007-01-01

203

Rereading "The Jack-Roller:" Hidden Histories in Sociology and Social Work  

ERIC Educational Resources Information Center

|I revisit one of the iconic Chicago School studies, Clifford Shaw's "The Jack-Roller". A naive reading of Shaw's book leaves the reader with a sense of having been inducted into a melange of what we now know as "sociology" and "social work," but which to Shaw seems a coherent stance. I suggest that this is close to the heart of how things were,…

Shaw, Ian

2009-01-01

204

Reduction of crosstalk noise in modular jack for high-speed differential signal interconnection  

Microsoft Academic Search

Crosstalk noise has become a significant problem in the design of high-speed digital interconnections. In this paper, we demonstrate a crosstalk reduction method, which has been successfully applied to the design of a CAT-5E modular jack. The CAT-5E is a newly adopted cabling and connector standard for advanced cabling network systems to assure more robust, reliable and high-speed operation, which

Namhoon Kim; Myunghee Sung; Hyungsoo Kim; Seungyong Baek; Woonghwan Ryu; Jeong-Gyun An; Joungho Kim

2001-01-01

205

Hemorrhagic stroke in young healthy male following use of sports supplement Jack3d.  

PubMed

A 26-year-old male was presented to a military treatment facility in Afghanistan shortly after taking a weight-lifting supplement called Jack3d with a severe headache and was subsequently found to have suffered a Dejerine-Roussy variant right thalamic hemorrhagic stroke. Jack3d active ingredients include geranamine, schizandrol A, caffeine, beta-alanine, creatine monohydrate, and L-arginine alpha-ketoglutarate. A literature search revealed case reports suggesting some of the constituent ingredients may predispose to stroke and hemorrhage and also revealed a substantial paucity of data existed regarding schizandrol A, a herb used in traditional eastern medicine. The product has no readily apparent disclaimer or warning regarding the risks or lack of data regarding the components. Jack3d is sold as a nutritional supplement and is therefore not subject to same FDA regulation and scrutiny that a pharmaceutical receives. The potential adverse effect was reported to the FDA via MedWatch in accordance with the recently passed Dietary Supplement and Nonprescription Drug Consumer Protection Act. PMID:23397687

Young, Colin; Oladipo, Olamide; Frasier, Samuel; Putko, Robert; Chronister, Stacy; Marovich, Mary

2012-12-01

206

Harsher working environments require rational assessments of jack-ups in operation  

SciTech Connect

The use of jack-ups for offshore drilling operations has increased considerably over the last ten years, and today, the total jack-up rig fleet exceeds 400 units, of which 350 or more are reportedly working. Some of these units are operating or are scheduled to drill in new frontier areas where limited knowledge of soil conditions exists and harsher environments are expected, implying a higher risk of rig instability. The Canadian east coast, the Navarin Basin and the Bering Sea, among others, are introducing jack-up drilling operations to deeper waters and more severe environments. To successfully operate in these conditions, it is necessary to rationally evaluate the installation and the operation safety levels from a foundation standpoint. This means that one should be able to assess: (1) the final leg penetration, anticipating potential problems like the punch-through failure and the excessive penetration of the spudcans; and (2) if the selected preload level will provide sufficient safety throughout the operation phase.

Matos, S.

1984-11-01

207

Signals from the ancient geodynamo: A paleomagnetic field test on the Jack Hills metaconglomerate  

NASA Astrophysics Data System (ADS)

The oldest history of Earth's magnetic field cannot be directly read from extant bulk rocks because of subsequent metamorphism at temperatures close to or exceeding the Curie temperature of common magnetic minerals. The Jack Hills metasediments of Western Australia, which have seen lower peak metamorphic temperatures, contain zircons as old as ˜4.4 billion-yr-old. To assess whether these sediments can retain an ancient signal of the geodynamo, we present a paleomagnetic conglomerate test on a cobble-bearing Jack Hills unit. Thermal demagnetization reveals a distinct magnetic component with high unblocking temperatures between ˜550 and 580 °C that passes the conglomerate test, indicating magnetization prior to deposition of the conglomerate. This result, together with rock magnetic data, indicates that the high unblocking temperature component is carried by magnetite which records magnetization in an ambient field, and the simplest explanation is that a dynamo was present. Existing geochronological data imply that the clasts could contain mixtures of minerals extending to ages only slightly older than the maximum depositional age at 3.05 billion-yr-ago. However, the positive conglomerate test reported here indicates that the Jack Hills metasediments have the potential to record Paleorchean to Hadean magnetic fields, on a clast or sub-clast mineral scale.

Tarduno, John A.; Cottrell, Rory D.

2013-04-01

208

In-Flight Performance Analysis of the CHAMP BlackJack GPS Receiver  

NASA Astrophysics Data System (ADS)

JPL's BlackJack receiver currently represents the most widely used geodetic grade GPS receiver for space applications. Using data from the CHAMP science mission, the in-flight performance of the BlackJack receiver has been assessed and the impact of various software updates performed during the 2.5 years since launch is described. Key aspects of the study comprise the channel allocation, anomalous data points, and the noise level of the code and carrier data. In addition, it has been demonstrated that the code measurements collected onboard the CHAMP satellite are notably affected by multipath errors in the aft looking hemisphere, which can be attributed to cross-talk between the occultation antenna string and the prime POD antenna. The code noise itself varies between a minimum of 5 cm at high elevations and 0.5 m (C/A) or 1.0 m (P1/P2) at 10° elevation. Carrier phase data exhibit representative errors of 0.2 to 2.5 mm. The results of the CHAMP GPS data contribute to a better understanding of the BlackJack receiver behavior and allow for an improvement of data editing and weighting strategies in precise orbit determination applications.

Montenbruck, O.; Kroes, R.

2003-04-01

209

A new herbal combination, Etana, for enhancing erectile function: an efficacy and safety study in animals  

Microsoft Academic Search

We present herein a new herbal combination called Etana that is composed of five herbal extracts including Panax quinquelotius (Ginseng), Eurycoma longifolia (Tongkat Ali), Epimedium grandiflorum (Horny goat weed), Centella asiatica (Gotu Kola) and flower pollen extracts. Most of the above-mentioned extracts have a long historical and traditional use for erectile dysfunction (ED). On the basis of the mechanism of

N Qinna; H Taha; K Z Matalka; A A Badwan

2009-01-01

210

Insecticide activity of essential oils of Mentha longifolia, Pulicaria gnaphalodes and Achillea wilhelmsii against two stored product pests, the flour beetle, Tribolium castaneum, and the cowpea weevil, Callosobruchus maculatus.  

PubMed

Essential oils extracted from the foliage of Mentha longifolia (L.) (Lamiales: Lamiaceae) and Pulicaria gnaphalodes Ventenat (Asterales: Asteraceae), and flowers of Achillea wilhelmsii C. Koch (Asterales: Asteraceae) were tested in the laboratory for volatile toxicity against two storedproduct insects, the flour beetle, Tribolium castaneum Herbst (Coleoptera: Tenebrionidae) and the cowpea weevil, Callosobruchus maculatus F. (Coleoptera: Bruchidae). The chemical composition of the isolated oils was examined by gas chromatography-mass spectrometry. InM longifolia, the major compounds were piperitenon (43.9%), tripal (14.3%), oxathiane (9.3%), piperiton oxide (5.9%), and d-limonene (4.3%). In P. gnaphalodes, the major compounds were chrysanthenyl acetate (22.38%), 2L -4L-dihydroxy eicosane (18.5%), verbenol (16.59%), dehydroaromadendrene (12.54%), ?-pinen (6.43%), and 1,8 cineol (5.6%). In A. wilhelmsii, the major compounds were 1,8 cineole (13.03%), caranol (8.26%), alpha pinene (6%), farnesyl acetate (6%), and p-cymene (6%). C maculatus was more susceptible to the tested plant products than T castaneum. The oils of the three plants displayed the same insecticidal activity against C. maculatus based on LC(50) values (between 1.54µl/L air in P. gnaphalodes, and 2.65 µl/L air in A. wilhelmsii). While the oils of A. wilhelmsii and M. longifolia showed the same strong insecticidal activity against T. castaneum (LC(50) = 10.02 and 13.05 µl/L air, respectively), the oil of P. gnaphalodes revealed poor activity against the insect (LC(50) = 297.9 µl/L air). These results suggested that essential oils from the tested plants could be used as potential control agents for stored-product insects. PMID:23413994

Khani, Abbas; Asghari, Javad

2012-01-01

211

Insecticide Activity of Essential Oils of Mentha longifolia, Pulicaria gnaphalodes and Achillea wilhelmsii Against Two Stored Product Pests, the Flour Beetle, Tribolium castaneum, and the Cowpea Weevil, Callosobruchus maculatus  

PubMed Central

Essential oils extracted from the foliage of Mentha longifolia (L.) (Lamiales: Lamiaceae) and Pulicaria gnaphalodes Ventenat (Asterales: Asteraceae), and flowers of Achillea wilhelmsii C. Koch (Asterales: Asteraceae) were tested in the laboratory for volatile toxicity against two storedproduct insects, the flour beetle, Tribolium castaneum Herbst (Coleoptera: Tenebrionidae) and the cowpea weevil, Callosobruchus maculatus F. (Coleoptera: Bruchidae). The chemical composition of the isolated oils was examined by gas chromatography-mass spectrometry. InM longifolia, the major compounds were piperitenon (43.9%), tripal (14.3%), oxathiane (9.3%), piperiton oxide (5.9%), and d-limonene (4.3%). In P. gnaphalodes, the major compounds were chrysanthenyl acetate (22.38%), 2L -4L-dihydroxy eicosane (18.5%), verbenol (16.59%), dehydroaromadendrene (12.54%), ?-pinen (6.43%), and 1,8 cineol (5.6%). In A. wilhelmsii, the major compounds were 1,8 cineole (13.03%), caranol (8.26%), alpha pinene (6%), farnesyl acetate (6%), and p-cymene (6%). C maculatus was more susceptible to the tested plant products than T castaneum. The oils of the three plants displayed the same insecticidal activity against C. maculatus based on LC50 values (between 1.54µl/L air in P. gnaphalodes, and 2.65 µl/L air in A. wilhelmsii). While the oils of A. wilhelmsii and M. longifolia showed the same strong insecticidal activity against T. castaneum (LC50 = 10.02 and 13.05 µl/L air, respectively), the oil of P. gnaphalodes revealed poor activity against the insect (LC50 = 297.9 µl/L air). These results suggested that essential oils from the tested plants could be used as potential control agents for stored-product insects.

Khani, Abbas; Asghari, Javad

2012-01-01

212

Do the Jack Hills zircons record evidence of the Late Heavy Bombardment?  

NASA Astrophysics Data System (ADS)

The Late Heavy Bombardment (LHB) is a hypothesized spike in the flux of bolides impacting the Earth-Moon system at ca. 3.9 Ga. Evidence for the LHB event largely comes from lunar samples as the scant terrestrial rock record prior to ~3.8 Ga has limited the search for evidence of the LHB on Earth. Given that Earth’s greater mass should have attracted a higher impact flux relative to the Moon, the occurrence of such an event without preservation of some evidence in the pre-3.8 Ga terrestrial rock record would be surprising. One expected effect would be the formation of melt sheets, such as those seen in large, preserved terrestrial impact sites. Zircons grown in such melt sheets are expected to record when and under what conditions they grew. As few localities on Earth preserve even a fragmentary rock record that overlaps the LHB, perhaps the best accessible record of crustal conditions from 3.8-4.0 Ga are ancient detrital zircons, such as those found in the Jack Hills of Western Australia. Earlier investigations reveal that the Jack Hills metasediments contain a quasi-continuous zircon age record from ~3.0-4.4 Ga. Narrow (<6 ?m) zircon rims with ages that range from 3.8-3.9 Ga have been documented on some Hadean grains via U-Pb SIMS depth-profiling. Six rims (2-4 ?m thick) on Hadean zircons thus far analyzed record discrete 3.95 Ga rims showing high degrees of Pb-loss. A growing database of Ti-in-zircon crystallization temperatures from preserved terrestrial impact melt sheets provides a basis for comparison with LHB-era zircons and overgrowth rims to assess their possible impact origin. While individual crystallization temperatures cannot be unambiguously linked to a particular petrogenesis, reasonable inferences can be made regarding broad trends in the data. The average Ti-in-zircon crystallization temperature for LHB-era terrestrial zircons of ca. 690°C suggests a dominant origin in near water-saturated granitoids, whereas impact melt zircons (Sudbury, Vredefort and Morokweng) yield temperatures of ca. 760°C and preliminary analyses for 3.8-3.9 Ga zircon rims yield temperatures upwards of ca. 1200°C. The impact-formed zircons are noticeably higher in temperature than those of the LHB-era Jack Hills zircons; the probability of the LHB-era Jack Hills crystallization temperature spectrum being extracted from an impact melt temperature spectrum appears statistically unlikely (p=0.002). Despite the existence of some apparently high-temperature grains among the LHB-era Jack Hills zircons, their contrast with the impact-formed zircon distribution indicates that an impact origin cannot be the dominant source of the LHB-era Jack Hills zircon cores. The high rim temperatures of the Hadean zircons indicate a different process of formation than those of the LHB-era zircons, consistent with short-duration, high-temperature thermal pulses associated with impacts and could reflect terrestrial evidence for the LHB event.

Bell, E. A.; Wielicki, M. M.; Abbott, S. S.; Mojzsis, S. J.; Harrison, T. M.

2009-12-01

213

GPR measurements for the distribution of thixotropic slurry behind segments in large diameter and long distance pipe-jacking construction  

NASA Astrophysics Data System (ADS)

It is very important to form an integrated ring of thixotropic slurry around the pipe segments to reduce resistance during large diameter and long distance pipe jacking. Furthermore, the integrated slurry ring between the pipe and the excavated soil can effectively reduce the soil disturbance caused by the pipes, and minimize ground settlement. It is necessary to real-time monitor the spatial distribution of the thixotripic slurry during jacking process. The traditional solution to estimate the outlines of slurry ring is the jacking load and the injecting pressure. If the jacking load increases, which means more slurry should be injected to reduce the jacking load. However, this solution couldn't provide the distribution of the slurry beneath pipe segments, and locate the zones which need to be injected enough slurry. Ground penetrating radar (GPR) has been successfully used to detect the thickness of the grouting behind the shield tunnel segments in last several years. An important factor is the dielectric difference between grouting and soil. Similarly, the interface between the liquid slurry with high relative electric permittivity and surrounding soil, should be recognized from GPR image due to the distinct dielectric difference. Here, GPR experiment has been conducted on a sewage pipe jacking engineering. The purpose of the survey is to evaluate the distribution of the thixotropic slurry through GPR image. In this sewage jacking engineering, the width and the thickness of each pipe segments is 200 cm and 30 cm, respectively. Considering the resolution and propagation range of radar wave, ground coupled bowtie antenna of 900 MHz frequency has been selected for GPR data acquisition. A series of circular GPR data have been collected along the inner surface of pipe segments. In addition, sampling of slurry has been performed on four different segments. The relative electric permittivity and conductivity of the thixotropic slurry have been measured by using time domain reflectometer (TDR). The velocity of propagation in slurry is calculated by dielectric characteristics, which extremely improves the resolution of time-depth conversion. Some process methods, including moving average, AGC and migration, have been applied to improve the quality of each GPR images. It's possible to recognize the reflection wave from the slurry-soil interface from the processed images. Combined the exact velocity estimation, the two-way travel time between pipe-slurry and slurry-soil interfaces can be converted to the thickness of the slurry ring. The experiment results show that GPR is able to evaluate the distribution of the liquid thixotropic slurry behind pipe segments in large diameter and long distance jacking. The velocity measured by TDR can significantly reduce the error caused by the time-depth conversion.

Zhao, Yonghui; Wu, Jiansheng; Xie, Xiongyao; Zeng, Chenchao

2013-04-01

214

Multistate unfolding of ?-mannosidase from Canavalia ensiformis (Jack Bean): evidence for the thermostable molten globule.  

PubMed

The relevance of partially ordered states of proteins (such as the molten-globule state) in cellular processes is beginning to be understood. We examined the conformational transitions in a multimeric and high molecular weight class II ?-mannosidase from Canavalia ensiformis (Jack Bean) (Jb?-man) utilizing intrinsic fluorescence, solute quenching, hydrophobic dye binding, size exclusion chromatography and circular dichroism (CD) spectroscopy for the protein in presence of Guanidine hydrochloride (GdnHCl). The decomposition analysis of the protein spectra obtained during unfolding showed progressive appearance of class S, I, II and III trp. The parameter A and spectral center of mass showed multi state unfolding of the protein and phase diagram analysis revealed formation of an intermediate of Jb?-man in the vicinity of 1 M GdnHCl. The intermediate exhibited compact secondary and distorted tertiary structure with exposed hydrophobic amino acids on the surface, indicating the molten-globule nature. The dissociation, partial unfolding and aggregation of Jb?-man occurred simultaneously during chemical denaturation. The molten-globule possessed slightly higher hydrodynamic radius, perturbance in the structure up to 60 °C and stability of the structure up to 80 °C unlike the native Jack Bean ?-mannosidase. The modes of chemical and thermal denaturation of the native protein were different. The solute quenching parameters confirmed the altered confirmation of the intermediate. Taken together, our results constitute one of the early reports of formation of GdnHCl induced molten globule in a class II ?-mannosidase. PMID:21087596

Kumar, Avinash; Gaikwad, Sushama M

2010-11-16

215

Jack bean urease alters serotonin-induced effects on Rhodnius prolixus anterior midgut.  

PubMed

Urease isoforms from jack bean seeds are toxic to insects, and this entomotoxic effect is mostly due to the release of a peptide by insect digestive enzymes. We previously demonstrated that jack bean urease (JBU) has antidiuretic effects on Rhodnius prolixus Malpighian tubules, decreasing the serotonin-stimulated secretion of fluid. Now, we evaluate the toxicity of the intact JBU and its effect on R. prolixus anterior midgut, to further elucidate the mechanism of action of JBU in insects. JBU decreases the serotonin-induced fluid transport by the anterior midgut in vitro when injected into the lumen. A decrease in the levels of cAMP is observed in tissues treated with JBU (in the presence of serotonin). JBU also causes a dose-dependent increase in the frequency of serotonin-induced contractions in the anterior midgut, but does not alter the frequency of spontaneous contractions. The cyclooxygenase inhibitor indomethacin and the prostaglandin antagonist AH6809 block JBU's potentiation of serotonin-induced contractions, indicating that prostaglandins might act as second messengers for JBU action. Prostaglandin E(2) (PGE(2)) increases the frequency of serotonin-induced contractions, again supporting the role of prostaglandins as second messengers for JBU action. JBU and PGE(2) increase cGMP levels in the anterior midgut, indicating that this molecule might also be part of the JBU pathway. PMID:20223243

Stanisçuaski, F; Te Brugge, V; Carlini, C R; Orchard, I

2010-03-16

216

Crosstalk canceling pattern for high-speed communications and modular jack having the same  

US Patent & Trademark Office Database

Disclosed herein are a crosstalk canceling pattern for high-speed communications and a modular jack having the same, which includes a compensating capacitor on a transmission line to cancel crosstalk due to parasitic capacitance generated between neighboring insert pins, and includes a second compensating capacitor to correct phase mismatch due to parasitic inductance generated in insert pins and transmission lines, when a high-frequency signal is applied. The modular jack having the crosstalk canceling pattern for high-speed communications includes a housing, a printed circuit board, a lower contact block, and an upper contact block. The hosing includes a plug insert hole, an insert pin locking plate, and a coupling guide part. The printed circuit board is a multi-layered structure having a plurality of compensating capacitors. The lower contact block is mounted to the lower surface of the printed circuit board. The upper contact block is mounted to the upper portion of the lower contact block, and divides UTP cable wires to be connected to IDC terminals.

Kim; Dae Sung (Gunpo-si, KR); Kim; Jung Gon (Siheung-si, KR); Lee; Jung Suk (Seoul-si, KR); Kim; Su Jong (Anyang-si, KR)

2007-02-13

217

Effects of a clear-cut harvest on soil respiration in a jack pine - Lichen woodland  

USGS Publications Warehouse

Quantification of the components of ecosystem respiration is essential to understanding carbon (C) cycling of natural and disturbed landscapes. Soil respiration, which includes autotrophic and heterotrophic respiration from throughout the soil profile, is the second largest flux in the global carbon cycle. We measured soil respiration (soil CO2 emission) at an undisturbed mature jack pine (Pinus banksiana Lamb.) stand in Saskatchewan (old jack pine, OJP), and at a formerly continuous portion of the stand that was clear-cut during the previous winter (clear-cut, CC). Tree harvesting reduced soil CO2 emission from ???22.5 to ???9.1 mol CO2??m2 for the 1994 growing season. OJP was a small net sink of atmospheric CO2, while CC was a net source of CO2. Winter emissions were similar at both sites. Reduction of soil respiration was attributed to disruption of the soil surface and to the death of tree roots. Flux simulations for CC and OJP identify 40% of CO2 emission at the undisturbed OJP site as near-surface respiration, 25% as deep-soil respiration, and 35% as tree-root respiration. The near-surface component was larger than the estimated annual C input to soil, suggesting fast C turnover and no net C accumulation in these boreal uplands in 1994.

Striegl, R. G.; Wickland, K. P.

1998-01-01

218

Continuing its travels, the original "On the Road" manuscript returns to Jack Kerouac's birthplace  

NSDL National Science Digital Library

"On the Road's" Bumpy Journey [Real Player]http://www.wbur.org/news/2007/68102_20070622.aspJack Kerouac: From Lowell to Legendhttp://extras.lowellsun.com/kerouac/C-SPAN: American Writers II, Jack Kerouac [Real Player]http://www.americanwriters.org/classroom/videolesson/clips35_kerouac.asp#NPR: Jack Kerouac's On the Road, Present at the Creation [Real Player]http://www.npr.org/programs/morning/features/patc/ontheroad/Kerouac Kalendarhttp://www.wordsareimportant.com/calendar.htmThe Art of Fiction: Jack Kerouac [pdf]http://www.theparisreview.com/media/4260_KEROUAC.pdfOn October 21, 1969, Jack Kerouac, the prolific American author died of an internal hemorrhage in St. Petersburg, Florida. Despite Kerouac's desire to be known primarily as a writer, many remember him because of his iconic status as a leader of the so-called "Beat Generation". Perhaps his best known work is his sprawling, stream of consciousness travel narrative, "On The Road". Recently, the book celebrated its fiftieth anniversary in print, and while Kerouac has been gone for almost forty years, the original manuscript of this book continues to travel through the United States. The entire work is contained on a 120-foot scroll, consisting of a series of single-spaced typed twelve-foot long rolls of paper that have been taped together. This remarkable document has been traveling around the country for the past few years at the request of its owner, Jim Irsay, who also happens to own the Indianapolis Colts. Recently, the scroll went home, in a matter of speaking, as it began a four-month residency at the Boot Cotton Mills Museum in Lowell, Massachusetts. As Lowell is Kerouac's birthplace, it seems fitting that it will get a chance to be around the places and milieu that informed a good deal of his own writings, musings, and reflections. The first link will take users to a news story from the CBC about a recent marathon reading of "On The Road" which took place this past Saturday at Naropa University in Boulder, Colorado. Created by WBUR in Boston, the next link leads to an audio news piece about getting "On the Road" published. Moving along, the third link leads to a very interactive feature about Kerouac's life in Lowell from the Lowell Sun. Here, visitors can view some great photographic slide shows, take a glance at a walking tour, and read some articles about Kerouac's legacy. The fourth link leads to a two-hour presentation from C-SPAN's American Writers II series that features interviews with historians, Kerouac's friends, and others. The fifth link whisks visitors away to a multimedia site created by NPR that contains excerpts from "On the Road", clips from conversations with Kerouac and his friend Neal Cassady, and a short video clip of Kerouac reading his work while Steve Allen tickles the ivories. The sixth link leads to the very comprehensive Kerouac Kalendar. Here, visitors can read all about the scroll's upcoming stops, conferences, readings, and all other events dealing with Kerouac. The last link leads to a long interview with Kerouac conducted by The Paris Review in 1968.

2007-01-01

219

Characterizing the physical and genetic structure of the lodgepole pine × jack pine hybrid zone: mosaic structure and differential introgression.  

PubMed

Understanding the physical and genetic structure of hybrid zones can illuminate factors affecting their formation and stability. In north-central Alberta, lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia) and jack pine (Pinus banksiana Lamb) form a complex and poorly defined hybrid zone. Better knowledge of this zone is relevant, given the recent host expansion of mountain pine beetle into jack pine. We characterized the zone by genotyping 1998 lodgepole, jack pine, and hybrids from British Columbia, Alberta, Saskatchewan, Ontario, and Minnesota at 11 microsatellites. Using Bayesian algorithms, we calculated genetic ancestry and used this to model the relationship between species occurrence and environment. In addition, we analyzed the ancestry of hybrids to calculate the genetic contribution of lodgepole and jack pine. Finally, we measured the amount of gene flow between the pure species. We found the distribution of the pine classes is explained by environmental variables, and these distributions differ from classic distribution maps. Hybrid ancestry was biased toward lodgepole pine; however, gene flow between the two species was equal. The results of this study suggest that the hybrid zone is complex and influenced by environmental constraints. As a result of this analysis, range limits should be redefined. PMID:23346232

Cullingham, Catherine I; James, Patrick M A; Cooke, Janice E K; Coltman, David W

2012-05-08

220

EFFECTS OF CAMBIAL AGE AND STEM HEIGHT ON WOOD DENSITY AND GROWTH OF JACK PINE GROWN IN BOREAL STANDS  

Microsoft Academic Search

Jack pine specimens were examined for longitudinal and radial variations in selected wood quality parameters. Wood density and ring width of cross-sections were measured systematically from pith to bark along the merchantable stem using X-ray densitometry. Effects of cambial age and stem height were analyzed using a linear mixed model with two levels of nesting. A strong interaction between the

Suzanne Brais; Marc J. Mazerolle

2009-01-01

221

Homeland and a Hinterland: The Current and Jacks Fork Riverways, Historic Resource Study, Ozark National Scenic Riverways.  

National Technical Information Service (NTIS)

In 1964, the 2nd Session of the 88th Congress enacted and President Lyndon B. Johnson signed into law legislation establishing the Ozark National Scenic Riverways along 134 miles of the Current and Jacks Fork Rivers in southeast Missouri, to be administer...

D. L. Stevens

1991-01-01

222

EFECTO DE LA AUXINA AIB EN LA PROPAGACIÓN DE AZAHAR DE LA INDIA (Murraya paniculata (L. Jack)) POR ACODO AÉREO  

Microsoft Academic Search

Effect of AIB when propagating azahar of India (Murraya paniculata (L. Jack) by air layering Azahar of India (Murraya paniculata) is widely cultivated as an ornamental plant. Its commercial propagation has been done by seeds, but the plants show very slow growth, taking a long time for transplanting; the asexual propagation has been difficult. The present study was conducted to

Maicol Castillo; Noris Hernández de Bernal

2005-01-01

223

White Anglo-Saxon Hopes and Black Americans' Atlantic Dreams: Jack Johnson and the British Boxing Colour Bar  

Microsoft Academic Search

:This article examines the controversy surrounding Jack Johnson's proposed world heavyweight title fight against the British champion Bombardier Billy Wells in London (1911). In juxtaposing African Americans' often glowing discussions of European tolerance with the actual white resistance the black champion faced in Britain, including the Home Office's eventual prohibition of the match, the article explores the period's transnational discourses

Theresa Runstedtler

2010-01-01

224

White Anglo-Saxon Hopes and Black Americans' Atlantic Dreams: Jack Johnson and the British Boxing Colour Bar  

Microsoft Academic Search

This article examines the controversy surrounding Jack Johnson's proposed world heavyweight title fight against the British champion Bombardier Billy Wells in London (1911). In juxtaposing African Americans' often glowing discussions of European tolerance with the actual white resistance the black champion faced in Britain, including the Home Office's eventual prohibition of the match, the article explores the period's transnational discourses

Theresa Runstedtler

2010-01-01

225

Magic Words, Magic Brush: The Art of William Butler and Jack Yeats. ArtsEdge Curricula, Lessons and Activities.  

ERIC Educational Resources Information Center

|This curriculum unit, designed for grades 7-12, integrates various artistic disciplines with geography, history, social studies, media, and technology. This unit on William Butler Yeats, the writer, and Jack Yeats, the painter, seeks to immerse students in a study of the brothers as voices of Ireland and as two of the most renowned artists of the…

Karsten, Jayne

226

Development of an integrated decision-support model for density management within jack pine stand-types  

Microsoft Academic Search

The objectives of this study were to (1) develop a modular-based structural stand density management model (SSDMM) and corresponding algorithmic analogue for natural (naturally regenerated stands without a history of density regulation) and managed (naturally or artificially regenerated stands with a history of density regulation) jack pine (Pinus banksiana Lamb.) stand-types, and (2) demonstrate the utility of the model in

Peter F. Newton

2009-01-01

227

Determination of Eligibility, Condition Assessment and Stabilization Plan for Sonoma Developmental Center Orchard at Jack London State Historic Park.  

National Technical Information Service (NTIS)

The Sonoma Developmental Center Orchard at Jack London State Historic Park has a rich history that began in the early part of the 20th-century. Planted between 1908 and 1912 by the Sonoma State Home on the hills behind the hospital grounds, nearly 100 acr...

A. McCoy C. Cain J. W. Hammond S. Dolan

2007-01-01

228

We Are All in the Dumps with Jack and Guy: Two Nursery Rhymes with Pictures by Maurice Sendak.  

ERIC Educational Resources Information Center

Describes and critiques Maurice Sendak's newest book, "We Are All in the Dumps with Jack and Guy," which includes nursery rhymes and pictures. Relates Sendak's book to the poetry of William Blake. Suggests possible readings for the book and approaches to teaching it. (HB)

Neumeyer, Peter F.

1994-01-01

229

Ecological species groups of landform-level ecosystems dominated by jack pine in northern Lower Michigan, USA  

Microsoft Academic Search

A combination of field and tabular methods and multivariate analyses were used to develop groups of ground flora species (i.e., ecological species groups) that characterize and distinguish highly disturbed, landform-level ecosystems dominated by jack pine in northern Lower Michigan. The endangered Kirtland's warbler formerly or currently occupied the large glacial landforms for which species groups were developed. Eight such ecological

D. M. Kashian; B. V. Barnes; W. S. Walker

2003-01-01

230

Hyping White Hopes: Press Agentry and Its Media Affiliations During the Era of Jack Johnson, 1908–1915  

Microsoft Academic Search

The social presence of African American boxing champion Jack Johnson stands out among the most controversial social and media issues of the early 20th century. This study examines the manner in which press agentry shaped and animated this 6-year historical episode. It portrays press agentry not merely in terms of personalities, but also in terms of a network of social

Phillip Hutchison

2011-01-01

231

Results of a jack-up measurement programme in the North Sea and their comparison with the structural analysis  

Microsoft Academic Search

Santa Fe International Corporation owns and operates four deep water harsh environment jack-up drilling units in the North Sea. The capacity of such units to resist the maximum winter storm environment in this region is a hotly debated topic within the offshore engineering community. This debate is fuelled in large part by uncertainty in our ability to predict accurately a

R. W. P. Stonor; X. Wu

1996-01-01

232

Establishment of an infectious RNA transcription system for Striped jack nervous necrosis virus, the type species of the betanodaviruses  

Microsoft Academic Search

A system has been established to produce infectious RNA transcripts for Striped jack nervous necrosis virus (SJNNV), the type species of the betanodaviruses, which infect fish. An enzymological analysis suggested that both RNA1 and RNA2 of SJNNV have a 5« cap. Both RNAs were largely resistant to 3« polyadenylation and ligation, suggesting the presence of an interfering 3« structure, while

Tokinori Iwamoto; Kazuyuki Mise; Koh-ichiro Mori; Misao Arimoto; Toshihiro Nakai

233

Mary Gardener Carpenter, Marion Gardener Floyd, and Jack Floyd oral history interview by Connie J. Brown, November 11, 2003  

Microsoft Academic Search

Oral history interview with three longtime residents of Sulphur Springs, Mary Gardener Carpenter, Marion Gardener Floyd, and Jack Floyd. Carpenter and Mrs. Floyd are sisters whose family moved to Sulphur Springs in 1934. Both women married men from the neighborhood and lived there with their families. The Floyds have lived in the same house for over fifty years. In this

Mary Gardener Carpenter; Connie J. Brown

2003-01-01

234

Understanding specialism when the jack of all trades can be the master of all  

PubMed Central

Specialism is widespread in nature, generating and maintaining diversity, but recent work has demonstrated that generalists can be equally fit as specialists in some shared environments. This no-cost generalism challenges the maxim that ‘the jack of all trades is the master of none’, and requires evolutionary genetic mechanisms explaining the existence of specialism and no-cost generalism, and the persistence of specialism in the face of selection for generalism. Examining three well-described mechanisms with respect to epistasis and pleiotropy indicates that sign (or antagonistic) pleiotropy without epistasis cannot explain no-cost generalism and that magnitude pleiotropy without epistasis (including directional selection and mutation accumulation) cannot explain the persistence of specialism. However, pleiotropy with epistasis can explain all. Furthermore, epistatic pleiotropy may allow past habitat use to influence future use of novel environments, thereby affecting disease emergence and populations' responses to habitat change.

Remold, Susanna

2012-01-01

235

The Jack Rabin Collection of Alabama Civil Rights and Southern Activists  

NSDL National Science Digital Library

Jack Rabin was a faculty member at a number of institutions during his long academic career, and he was intimately involved with certain aspects of the civil rights movement in the 1960s. During time spent in Alabama he worked with the organizers of the Montgomery Bus Boycott. He also accumulated a tremendous collection of photos and interviews related to this event and others. This online collection from the Pennsylvania State University Libraries brings together many of these documents. Visitors can get started here by watching a historic interview with Stokely Carmichael or watching an excerpt from the Selma March in 1965. Also, visitors are encouraged to search the collection, read a biography of Rabin, and peruse the finding aid.

2012-05-18

236

PIXE analysis of urease isoenzymes isolated from Canavalia ensiformis (jack bean) seeds  

NASA Astrophysics Data System (ADS)

The main goal of this work was to perform a stoichiometric analysis of metals, in particular Ni and Zn, in two isoforms of urease isolated from jack bean seeds. The urease isoforms were separated by immobilized metal affinity chromatography. The samples were prepared for PIXE by acetone precipitation of the proteins, which were deposited onto regenerated cellulose acetate membranes by filtration. The resulting mass of the samples was of the order of 0.20 mg (dry weight). The results show that urease contains two equivalents of Ni per 90 kDa monomer, in agreement with the results reported in the literature. For canatoxin, the other urease isoform, the presence of one equivalent of Zn per monomer was observed, besides Ni, previously detected by atomic absorption spectrometry as one equivalent per 90 kDa. Problems and further improvements concerning the preparation of the samples are discussed.

Follmer, C.; Carlini, C. R.; Yoneama, M.-L.; Dias, J. F.

2002-04-01

237

Effect of drought and osmotic stress on gene expression in Jack Pine. [Pinus banksiana  

SciTech Connect

The effect of drought and osmotic stress was studied in Jack Pine (Pinus banksiana) seedlings and cultured cell suspensions, respectively. The pattern of protein syntheses during stress was studied. Seedlings and cells were in vivo labeled with ({sup 35}S)methionine and membrane-bound proteins were isolated. proteins were resolved by SDS-PAGE, and identified by staining and autoradiography. Several changes in protein profiles were induced by stress. Messenger RNAs were isolated, translated in vitro, and complementary DNA libraries from control and stressed plants and cells were constructed in E. coli strain JM109. Antibodies, raised against electroeluted membrane-bound proteins that were significantly induced and/or enhanced during stress, were used to isolate stress-related genes from cDNA libraries.

Subramanian, M.; Mayne, M.; Coleman, J.R.; Blumwald, E. (Univ. of Toronto, Ontario (Canada))

1991-05-01

238

Proteus mirabilis urease: nucleotide sequence determination and comparison with jack bean urease.  

PubMed Central

Proteus mirabilis, a common cause of urinary tract infection, produces a potent urease that hydrolyzes urea to NH3 and CO2, initiating kidney stone formation. Urease genes, which were localized to a 7.6-kilobase-pair region of DNA, were sequenced by using the dideoxy method. Six open reading frames were found within a region of 4,952 base pairs which were predicted to encode polypeptides of 31.0 (ureD), 11.0 (ureA), 12.2 (ureB), 61.0 (ureC), 17.9 (ureE), and 23.0 (ureF) kilodaltons (kDa). Each open reading frame was preceded by a ribosome-binding site, with the exception of ureE. Putative promoterlike sequences were identified upstream of ureD, ureA, and ureF. Possible termination sites were found downstream of ureD, ureC, and ureF. Structural subunits of the enzyme were encoded by ureA, ureB, and ureC and were translated from a single transcript in the order of 11.0, 12.2, and 61.0 kDa. When the deduced amino acid sequences of the P. mirabilis urease subunits were compared with the amino acid sequence of the jack bean urease, significant amino acid similarity was observed (58% exact matches; 73% exact plus conservative replacements). The 11.0-kDa polypeptide aligned with the N-terminal residues of the plant enzyme, the 12.2-kDa polypeptide lined up with internal residues, and the 61.0-kDa polypeptide matched with the C-terminal residues, suggesting an evolutionary relationship of the urease genes of jack bean and P. mirabilis.

Jones, B D; Mobley, H L

1989-01-01

239

Soil respiration in a fire scar chronosequence of Canadian boreal jack pine forest  

NASA Astrophysics Data System (ADS)

To fully understand the carbon (C) cycle impacts of forest fires, both C emissions during the fire and post-disturbance fluxes need to be considered. The latter are dominated by soil respiration (Rs), which is still subject to large uncertainties. This research investigates Rs in a boreal jack pine fire scar chronosequence at Sharpsand Creek, Ontario, Canada. During two field campaigns in 2006 and 2007, Rs was measured in a chronosequence of fire scars aged between 0 and 59 years since the last fire. Mean Rs per fire scar was adjusted for soil temperature (Ts) and soil moisture (Ms) (denoted RST,M). RST,M ranged from 0.56 ?mol CO2/m2/s (32 years post fire) to 8.18 ?mol CO2/m2/s (58 years post fire). The coefficient of variation (CV) of RST,M ranged from 20% (16 years post fire) to 56% (58 years post fire). Across the field site, there was a statistically highly significant exponential relationship between Rs adjusted for soil organic carbon (Cs) and Ts (P<0.00001; Q10=2.21) but no effect of Ms on Rs adjusted for Cs and Ts for the range 0.21 to 0.77 volumetric Ms (P=0.702). RST,M decreased significantly (P=0.030) after fire (4 to 8 days post fire) in mature forest, though no significant (P>0.1) difference could be detected between recently burned (4 to 8 days post fire) and unburned young forest. There were significant differences in RST,M between recently burned (4 to 8 days post fire) scar age categories that differed in their burn history, with between-fire intervals of 32 vs. 16 years (P<0.001) and 32 vs 59 years (P=0.044). There was a highly significant exponential increase in RST,M with time since fire (r2=0.999; P=0.006) for the chronosequence 0, 16 and 59 years post fire, and for all these age categories, RST,M was significantly different from one another (P<0.05). The results of this study contribute to a better quantitative understanding of Rs in boreal jack pine fire scars and will facilitate improvements in C cycle modelling. Further work is needed in quantifying autotrophic and heterotrophic contributions to Rs in jack pine systems; in monitoring Rs for extended time periods after fire; and in measuring different fire-prone forest types.

Smith, D. R.; Kaduk, J. D.; Balzter, H.; Wooster, M. J.; Mottram, G. N.; Lynham, T. J.; Studens, J.; Curry, J.; Hartley, G.; Stocks, B. J.

2009-09-01

240

Characterization of total capsaicinoids, colour and volatile compounds of Habanero chilli pepper ( Capsicum chinense Jack.) cultivars grown in Yucatan  

Microsoft Academic Search

Total capsaicinoids, colour and volatile compounds of 10 Habanero chilli pepper (Capsicum chinense Jack.) cultivars grown in Yucatan, grouped by their colours: four red, five orange and one brown, were determined. The content of capsaicinoids, responsible for the pungency of chilli peppers, varied between 41.8 and 65.9mgg?1 dry fruit. Mean concentration of orange cultivars was 55.0mgg?1, while red cultivars had

Jorge Pino; Marilú González; Liena Ceballos; Alma Rosa Centurión-Yah; Jorge Trujillo-Aguirre; Luis Latournerie-Moreno; Enrique Sauri-Duch

2007-01-01

241

Chemical composition of the leaf essential oils of Murraya koenigii (L.) Spreng and Murraya paniculata (L.) Jack  

Microsoft Academic Search

The chemical composition of the leaf oils of Murraya koenigii (L.) Spreng and M. paniculata (L.) Jack from Bangladesh was studied by gas chromatography mass spectroscopy (GC-MS). M. koenigii oil contained 39 compounds of which the major is 3-carene (54.2%) followed by caryophyllene (9.5%). Oil of M. paniculata contained 58 compounds of which the major are caryophyllene oxide (16.6%), ?-caryophyllene

Jasim Uddin Chowdhury; Mohammad Nazrul Islam Bhuiyan; Mohammed Yusuf

2008-01-01

242

Mineral resources of the Indian Creek, Bridger Jack Mesa, and Butler Wash Wilderness Study Areas, San Juan County, Utah  

SciTech Connect

The Indian Creek, Bridger Jack Mesa, and Butler Wash Wilderness Study Areas are located in San Juan County, southeastern Utah. These areas consist of nearly flat-lying sedimentary rocks of Paleozoic and Mesozoic age that are in places extensively faulted, forming horsts and grabens, or they are gently domed by flowage of the bedded salts of the Paradox Member of the Hermosa Formation. Inferred subeconomic resources of potash and halite are present in the Paradox beneath the Indian Creek Wilderness Study Area, but their likelihood for development is low. Inferred subeconomic resources of sandstone and small amounts of sand and gravel exist within these wilderness study areas, but because of their abundance throughout the region, their distance to current markets, and their lack of unique properties, these materials have no current likelihood for development. No uranium resources were identified at the surface in these wilderness study areas. However, the potential for undiscovered resources of uranium and by-products vanadium and copper is high for the north quarter of the Bridger Jack Mesa Wilderness Study Area; the mineral resource potential for these elements is low for the Butler Wash, Indian Creek and the remainder of the Bridger Jack Mesa Wilderness Study Areas. The potential for oil and gas resources is moderate in all three wilderness study areas. The mineral resource potential for potash and halite beneath the Bridger Jack Mesa and Butler Wash Wilderness Study Areas is low. The resource potential for gold and silver is low in all three wilderness study areas and the mineral resource potential for the rare-earth element braitschite is unknown in all three wilderness study areas.

Patterson, C.G.; Toth, M.I.; Case, J.E.; Barton, H.N.; Green, G.N.; Schreiner, R.A.; Thompson, J.R.

1989-01-01

243

Jack bean ( Canavalia ensiformis) urease. Probing acid–base groups of the active site by pH variation  

Microsoft Academic Search

A pH-variation study of jack bean (Canavalia ensiformis) urease steady-state kinetic parameters and of the inhibition constant of boric acid, a urease competitive inhibitor, was performed using both noninhibitory organic (MES, HEPES and CHES) and inhibitory inorganic (phosphate) buffers, in an effort to elucidate the functions exercised in the catalysis by the ionizable groups of the enzyme active site. The

Barbara Krajewska; Stefano Ciurli

2005-01-01

244

New Hf isotope data from the Jack Hills zircons: constraints on the Hadean crustal evolution  

NASA Astrophysics Data System (ADS)

Here we present a follow-up of our study of the "older" population of detrital zircons from the Jack Hills metaconglomerate W-74 [1]. We report Lu-Hf data for zircon grains, which have been previously analyzed with a number of techniques: BSE and CL imaging, detailed U-Pb SHRIMP geochronology, trace element concentrations, and oxygen isotopic compositions. After completion of non-destructive SIMS analyses and imaging, the zircons were extracted from the mounts, dissolved and analyzed for U-Pb and Lu-Hf using isotope dilution. Twenty five grains were air abraded before digestion, and eight grains were digested without abrasion. Four grains were cut, and the fragments were analyzed for U-Pb and Lu-Hf separately. The 207Pb/206Pb ages determined by isotope dilution vary between 3788-4186 Ma; the maximum SHRIMP spot 207Pb/206Pb ages of the same grains are between 3871-4276 Ma. The spot 207Pb/206Pb ages averaged over each grain are close to the whole grain isotope dilution values. The U-Pb discordance depends mainly on whether the grains were abraded: the median discordance of 27 abraded grains and fragments is 2.7 (the range is -0.4 to 20.2), whereas the median discordance of 11 unabraded grains and fragments is 66.5 (the range is 20.5 to 83.5). The epsilon176Hf values, calculated using the whole grain TIMS 207Pb/206Pb ages and the 176Lu decay constant of 1.865*10-11, are between -1.4 and -10.6. Using maximum SHRIMP spot 207Pb/206Pb ages and the same decay constant yields the range of epsilon176Hf of 0.1 to -8.6. If the decay constant of 1.983*10-11 is used instead, then the range of epsilon176Hf becomes 4.7 to -5.0 using the whole grain ages, or 6.3 to -3.0 using the maximum SHRIMP spot ages. Grain fragment analyses show internal variations of initial 176Hf/177Hf in three grains out of five. This observation is consistent with multi-episodic zircon growth rather than with ancient Pb loss. In the presentation we shall discuss the prospect of reliable interpretation of the Hf isotope from the Jack Hills detrital zircons and from other complex ancient zircon populations. [1] Amelin et al. 2001, Proceedings of the Archean-2001 symposium, Perth, WA.

Amelin, Y.; Davis, D.; Lee, D.

2004-05-01

245

Profiles of lipid components, fatty acid distributions of triacylglycerols and phospholipids in Jack beans (Canavalia gladiata DC.).  

PubMed

Endogenous tocopherols in extracted lipids from Jack beans (Canavalia gladiata DC.) were determined by high-performance liquid chromatography (HPLC), and were investigated in relation to the fatty acids (FA) distribution of triacylgycerols (TAG) and phospholipids (PL). The dominant tocopherols were (?)-tocopherol (78.9-96.5mg%) and (?)-tocopherol (42.1-56.1mg%) with much smaller amounts of (?)-tocopherol (1.1-1.3mg%). The lipids of Jack beans comprised mainly TAG (34.6-38.6 wt.%) and PL (54.8-57.4 wt.%), and other components were also detected in minor proportions (0.3-3.8 wt.%). The PL components included phosphatidyl choline (46.2-48.7 wt.%), phosphatidyl inositol (23.4-29.6 wt.%) and phosphatidyl ethanolamine (18.5-21.2 wt.%). Comparison of these different beans showed, with a few exceptions, no significant differences (P>0.05) in FA distribution. The FA distribution of TAG among the five beans was evident in the Jack beans: unsaturated FA (93.3-95.3 wt.%) were predominantly concentrated at the sn-2 position and saturated FA (33.6-34.4 wt.%) primarily occupying the sn-1 position or sn-3 position. The results obtained from this work would provide useful information to both producers and consumers for manufacturing functional foods or beverages in Japan and elsewhere. PMID:23122131

Yoshida, Hiromi; Yoshida, Naoko; Kuriyama, Isoko; Tomiyama-Sakamoto, Yuka; Mizushina, Yoshiyuki

2012-09-13

246

Inactivation of jack bean urease by scutellarin: Elucidation of inhibitory efficacy, kinetics and mechanism.  

PubMed

In the present study, the inactivation effect of scutellarin (SL) on jack bean urease was investigated to elucidate the inhibitory potency, kinetics and mechanism of inhibition. It was revealed that SL acted as a concentration- and time-dependent inactivator of urease characteristic of slow-binding inhibition with an IC50 of 1.35±0.15mM. The rapid formation of the initial SL-urease complex with an inhibition constant of Ki=5.37×10(-2)mM was followed by a slow isomerization into the final complex with the overall inhibition constant of Ki*=3.49×10(-3)mM. High effectiveness of thiol protectors, such as L-cysteine (L-cys), 2-mercaptoethanol (2-ME) and dithiothreitol (DTT) significantly slowed down the rate of inactivation, indicating the strategic role of the active site sulfhydryl group in the blocking process. While the insignificant protection by boric acid and fluoride from the inactivation further confirmed that the active site cysteine should be obligatory for urease inhibition, which was also rationalized by the molecular docking study. The inhibition of SL on urease proved to be reversible since SL-blocked urease could be reactivated by DTT application and multidilution. The results obtained indicated that urease inactivation resulted from the reaction between SL and the sulfhydryl group. PMID:23978581

Wu, Dian-Wei; Yu, Xiao-Dan; Xie, Jian-Hui; Su, Zu-Qing; Su, Ji-Yan; Tan, Li-Rong; Huang, Xiao-Qi; Chen, Jian-Nan; Su, Zi-Ren

2013-08-24

247

Statistical studies on high molecular weight pullulan production in solid state fermentation using jack fruit seed.  

PubMed

The purpose of the work was to optimize the medium variables for maximizing pullulan production using jack fruit seed as a low cost substrate by Aureobasidium pullulans in solid state fermentation. Effects of K2HPO4, KH2PO4, ZnSO4·5H2O, MgSO4·7H2O, NaCl, (NH4)2SO4·5H2O, yeast extract, moisture content (%, w/w) in the production medium on pullulan production were studied using Plackett-Burman design. Production of pullulan was significantly affected by the medium variables namely KH2PO4, ZnSO4·5H2O, NaCl and moisture content (%, w/w). Then screened variables were optimized by Box Behnken experiment design. The pullulan obtained was characterized and confirmed by FTIR, (1)H NMR and (13)C NMR. Molecular weight of pullulan was found to be 1.733×10(6)g/mol by gel permeation chromatography (GPC). PMID:23987421

Sugumaran, K R; Sindhu, R V; Sukanya, S; Aiswarya, N; Ponnusami, V

2013-07-07

248

Jack Polynomials, Exclusion Statistics, and non-Abelian FQHE States at ? = k/(km+r)  

NASA Astrophysics Data System (ADS)

We describe a general family of non-Abelian FQHE states at ? = k/(km+r) with polynomial wavefunctions iJack polynomial with negative (coprime) rational parameter ? = -(k+1)/(r-1), and ? is the ``most compressed'' ``(k,r,N)-admissible'' partition. These polynomials are dominated by an occupation-number pattern maximally-obeying the generalized Pauili rule that no (consecutive) group of (km+r) orbitals contains more than k particles and (m>0) no group of m orbitals contains more than one. This exclusion rule defines a space of polynomials characterized by how they vanish as clusters of particle coordinates contract to a point. The edge of these FQHE states has a fractionally-quantized thermal Hall effect with c^eff = k(r+1)/(k+r), derived from the exclusion rule. The r=2 family are the Laughlin, Moore-Read, and Read-Rezayi states, related to unitary conformal field theories. The r > 2 families are related to non-unitary Wk^k+1,k+r cft, but (as polynomials) have well-defined quasi-hole propagators, which overcomes the principal objection to the proposition that non-unitary cft's can describe FQHE states. The m=1, r=k+1 set are a non-Abelian alternative construction of states at 2/5,3/7,4/9, .

Haldane, F. D. M.; Bernevig, B. Andrei

2008-03-01

249

Morphological Phylogenetic Analysis of Seven Varieties of Ficus deltoidea Jack from the Malay Peninsula of Malaysia  

PubMed Central

This study is the first report to suggest a morphological phylogenetic framework for the seven varieties of Ficus deltoidea Jack (Ficus: Moraceae) from the Malay Peninsula of Malaysia. Several molecular-based classifications on the genus Ficus had been proposed, but neither had discussed the relationship between seven varieties of F. deltoidea to its allies nor within the varieties. The relationship between seven varieties of F. deltoidea is still debated due to the extreme morphological variabilities and ambiguous boundaries between taxa. Thus, the correct identification of these varieties is important as several morphological characters are variety-specific. To test the monophyly and further resolved the relationship in F. deltoidea, a morphological phylogenetic analysis was conducted based on herbarium specimens representing the seven varieties of F. deltoidea that were collected from the Malay Peninsula of Malaysia, by using related species of the genus Ficus; F. grossularioides, F. ischnopoda and F. oleifolia as the outgroups. Parsimony and neighbour-joining analyses indicated that F. deltoidea is monophyletic, in that the seven varieties of F. deltoidea nested into two clades; clade subspecies deltoidea (var. deltoidea, var. bilobata, var. angustifolia, var. kunstleri and var. trengganuensis) and clade subspecies motleyana (var. intermedia and var. motleyana).

Fatihah, Hasan N. N.; Mat, Nashriyah; Zaimah, Abdul R. N.; Zuhailah, Mazlan N.; Norhaslinda, Haron; Khairil, Mahmud; Ghani, Abdul Y.; Ali, Abdul M.

2012-01-01

250

A light carbon reservoir recorded in zircon-hosted diamond from the Jack Hills.  

PubMed

The recent discovery of diamond-graphite inclusions in the Earth's oldest zircon grains (formed up to 4,252 Myr ago) from the Jack Hills metasediments in Western Australia provides a unique opportunity to investigate Earth's earliest known carbon reservoir. Here we report ion microprobe analyses of the carbon isotope composition of these diamond-graphite inclusions. The observed delta(13)C(PDB) values (expressed using the PeeDee Belemnite standard) range between -5 per mil and -58 per mil with a median of -31 per mil. This extends beyond typical mantle values of around -6 per mil to values observed in metamorphic and some eclogitic diamonds that are interpreted to reflect deep subduction of low-delta(13)C(PDB) biogenic surface carbon. Low delta(13)C(PDB) values may also be produced by inorganic chemical reactions, and therefore are not unambiguous evidence for life on Earth as early as 4,250 Myr ago. Regardless, our results suggest that a low-delta(13)C(PDB) reservoir may have existed on the early Earth. PMID:18596808

Nemchin, Alexander A; Whitehouse, Martin J; Menneken, Martina; Geisler, Thorsten; Pidgeon, Robert T; Wilde, Simon A

2008-07-01

251

The behavior of selected microorganisms during the manufacture of high moisture Jack cheeses from ultrafiltered milk.  

PubMed

Whole milk was pasteurized and concentrated two times by ultrafiltration. Starter cultures, Lactococcus lactis ssp. cremoris and Lactococcus lactis ssp. lactis, were propagated in either reconstituted skim milk, two times UF retentate, or UF permeate, or a direct vat system was used for the starter culture. The cheese milk was simultaneously inoculated with starter culture and Pseudomonas fragi 4973, Staphylococcus aureus 196E, and Salmonella typhimurium var. Hillfarm. Control whole milk, UF control milk, inoculated whole milk, and inoculated UF milk were made into Monterey Jack cheese using traditional procedures. The process of cheese manufacture was followed by determination of pH, titratable acidity, and microbial population levels. The cheeses were stored for 6 mo and analyzed every month for percentage solids and microbial population levels. Generally, numbers of contaminant microbes increased at a similar rate during manufacture in all cheeses. During the 6-mo ripening period, bacterial starter culture population levels remained high, psychrotrophs declined slowly, Staphylococcus levels remained stable, and Salmonella populations decreased. No Staphylococcus enterotoxin was detected by reverse passive latex agglutination assay. PMID:1779045

Eckner, K F; Zottola, E A

1991-09-01

252

Jack bean urease inhibition by crude juices of Allium and Brassica plants. Determination of thiosulfinates.  

PubMed

The aim of this study was the elucidation of the inhibitory influence of Allium (garlic, onion, leek) and Brassica (cabbage, Brussels sprouts) plants juices, on jack bean urease activity. Concentrations of thiosulfinates, the compounds responsible for the inhibition, were determined in studied materials. The kinetics and mechanism of the inhibitions were investigated. Biphasic, time-dependent courses of the inhibition reactions were observed for all tested Allium and Brussels sprouts from Brassica. The cabbage material caused the monophasic course of the inhibition. In the presence of dithiothreitol, a total reactivation of the inhibited urease proceeded for the tested plants except for the onion. The onion juice modified urease, regained only half of the initial activity. The irreversible contribution was related to the presence of 1-propanethial-S-oxide, cepaenes and zwiebelanes formed in the onion juice. It was found that the thermal processing of the plant juices, results in the decrease of thiosulfinates concentration, as well as the efficiency of urease inhibition. PMID:24128461

Olech, Zofia; Zaborska, Wies?awa; Kot, Miros?awa

2013-08-21

253

The lodgepole × jack pine hybrid zone in alberta, Canada: a stepping stone for the mountain pine beetle on its journey East across the boreal forest?  

PubMed

Historical data show that outbreaks of the tree killing mountain pine beetle are often preceded by periods of drought. Global climate change impacts drought frequency and severity and is implicated in the range expansion of the mountain pine beetle into formerly unsuitable habitats. Its expanded range has recently reached the lodgepole × jack pine hybrid zone in central Alberta, Canada, which could act as a transition from its historical lodgepole pine host to a jack pine host present in the boreal forest. This field study tested the effects of water limitation on chemical defenses of mature trees against mountain pine beetle-associated microorganisms and on beetle brood success in lodgepole × jack pine hybrid trees. Tree chemical defenses as measured by monoterpene emission from tree boles and monoterpene concentration in needles were greater in trees that experienced water deficit compared to well-watered trees. Myrcene was identified as specific defensive compound, since it significantly increased upon inoculation with dead mountain pine beetles. Beetles reared in bolts from trees that experienced water deficit emerged with a higher fat content, demonstrating for the first time experimentally that drought conditions benefit mountain pine beetles. Further, our study demonstrated that volatile chemical emission from tree boles and phloem chemistry place the hybrid tree chemotype in-between lodgepole pine and jack pine, which might facilitate the host shift from lodgepole pine to jack pine. PMID:23955061

Lusebrink, Inka; Erbilgin, Nadir; Evenden, Maya L

2013-08-17

254

An intrinsically disordered protein, CP12: jack of all trades and master of the Calvin cycle.  

PubMed

Many proteins contain disordered regions under physiological conditions and lack specific three-dimensional structure. These are referred to as IDPs (intrinsically disordered proteins). CP12 is a chloroplast protein of approximately 80 amino acids and has a molecular mass of approximately 8.2-8.5 kDa. It is enriched in charged amino acids and has a small number of hydrophobic residues. It has a high proportion of disorder-promoting residues, but has at least two (often four) cysteine residues forming one (or two) disulfide bridge(s) under oxidizing conditions that confers some order. However, CP12 behaves like an IDP. It appears to be universally distributed in oxygenic photosynthetic organisms and has recently been detected in a cyanophage. The best studied role of CP12 is its regulation of the Calvin cycle responsible for CO2 assimilation. Oxidized CP12 forms a supramolecular complex with two key Calvin cycle enzymes, GAPDH (glyceraldehyde-3-phosphate dehydrogenase) and PRK (phosphoribulokinase), down-regulating their activity. Association-dissociation of this complex, induced by the redox state of CP12, allows the Calvin cycle to be inactive in the dark and active in the light. CP12 is promiscuous and interacts with other enzymes such as aldolase and malate dehydrogenase. It also plays other roles in plant metabolism such as protecting GAPDH from inactivation and scavenging metal ions such as copper and nickel, and it is also linked to stress responses. Thus CP12 seems to be involved in many functions in photosynthetic cells and behaves like a jack of all trades as well as being a master of the Calvin cycle. PMID:22988853

Gontero, Brigitte; Maberly, Stephen C

2012-10-01

255

Plan for Using Solar-Powered Jack Pumps to Sample Groundwater at the Nevada Test Site  

SciTech Connect

Groundwater is sampled from 39 monitoring wells on the Nevada Test Site (NTS) as part of the Routine Radiological Environmental Monitoring Program. Many of these wells were not designed or constructed for long-term groundwater monitoring. Some have extensive completion zones and others have obstructions such as pumps and tubing. The high-volume submersible pumps in some wells are unsuitable for long-term monitoring and result in large volumes of water that may have to be contained and characterized before subsequent disposition. The configuration of most wells requires sampling stagnant well water with a wireline bailer. Although bailer sampling allows for the collection of depth-discrete samples, the collected samples may not be representative of local groundwater because no well purging is done. Low-maintenance, solar-powered jack pumps will be deployed in nine of these onsite monitoring wells to improve sample quality. These pumps provide the lift capacity to produce groundwater from the deep aquifers encountered in the arid environment of the NTS. The water depths in these wells range from 700 to 2,340 ft below ground surface. The considerable labor and electrical power requirements of electric submersible pumps are eliminated once these pumps are installed. Access tubing will be installed concurrent with the installation of the pump string to provide downhole access for water-level measurements or other wireline instruments. Micro-purge techniques with low pump rates will be used to minimize purge volumes and reduce hydraulic gradients. The set depths of the pumps will be determined by the borehole characteristics and screened interval.

David Hudson, Charles Lohrstorfer, Bruce Hurley

2007-05-03

256

Uncaria rhynchophylla (miq) Jack plays a role in neuronal protection in kainic acid-treated rats.  

PubMed

Uncaria rhynchophylla (Miq) Jack (UR) is one of many Chinese herbs. Our previous studies have shown that UR has both anticonvulsive and free radical-scavenging activities in kainic acid (KA)-treated rats. The aim of the present study was to use the effect of UR on activated microglia, nitric oxide synthase, and apoptotic cells to investigate its function in neuroproction in KA-treated rats. UR of 1.0 or 0.5 g/kg was orally administered for 3 days (first day, second day, and 30 min prior to KA administration on the third day), or 10 mg/kg (intraperitoneal injection, i.p.) N-nitro-L-arginine methyl ester (L-NAME) 30 min prior to KA (2 microg/2 microl) was injected into the right hippocampus region of Sprague-Dawly rats. ED1 (mouse anti rat CD68), neuronal nitric oxide synthase (nNOS), inducible nitric oxide synthase (iNOS) immunoreactive cells and apoptotic cells were observed in the hippocampus region. The results indicated that 1.0 g/kg, 0.5 g/kg of UR and 10 mg/kg of L-NAME reduced the counts of ED1, nNOS, iNOS immunoreactive cells and apoptotic cells in KA-treated rats. This study demonstrates that UR can reduce microglia activation, nNOS, iNOS and apoptosis, suggesting that UR plays a neuro-protective role against neuronal damage in KA-treated rats. PMID:20387223

Tang, Nou-Ying; Liu, Chung-Hsiang; Su, Shan-Yu; Jan, Ya-Min; Hsieh, Ching-Tou; Cheng, Chin-Yi; Shyu, Woei-Cherng; Hsieh, Ching-Liang

2010-01-01

257

Donkey jack (Equus asinus) semen cryopreservation: studies of seminal parameters, post breeding inflammatory response, and fertility in donkey jennies.  

PubMed

The aims of this study were (1) to evaluate motility parameters of donkey jack (jack; Equus asinus) semen cryopreserved in INRA-96 (INRA; IMV Technologies, France, 2% egg-yolk enriched) using either glycerol (GLY) or ethylene glycol (EG) as a cryoprotector; (2) to compare in vitro the postthaw re-extension with homologous seminal plasma (SPL) or INRA; (3) to compare fertility in donkey jennies (jennies; Equus asinus) timed artificially inseminated with jack semen cryopreserved using GLY or EG, re-extended with INRA; (4) to compare fertility in jennies timed artificially inseminated with jack semen cryopreserved using GLY re-extended with SPL, INRA, or not re-extended (NN); and (5) to describe some preliminary results of the inflammatory uterine response postbreeding. Semen from two jacks was collected and frozen in an INRA-2% egg yolk extender added of either 2.2% GLY or 1.4% EG. Postthaw motility was evaluated by a computer-assisted motility analyzer. Uterine inflammatory response and fertility were evaluated after artificial insemination (AI) of 13 jennies with frozen-thawed semen, either further extended with INRA (Group GLY-INRA, 13 cycles, and EG-INRA, 8 cycles), or with SPL (Group GLY-SPL, 13 cycles), or not re-extended (GLY-NN, 5 cycles). In each cycle, jennies were bred twice with 500 × 10(6) sperm cells (250 × 10(6) from each jack), at fixed times after induction of ovulation, and uterus was flushed at 6 and 10 h after first and second breeding, respectively. Cells in the recovered fluid were counted and distinguished as polymorphonuclear neutrophils (PMN) or other cell types. Total and progressive motility did not differ between cryoprotectants, but were higher when semen samples were re-extended in INRA, compared with SPL (P < 0.05). Pregnancy was diagnosed by transrectal palpation and ultrasonography examinations at 14 and 16 days postovulation. In 7/13 (53.8%) jennies and 12/39 (30.4%) cycles postbreeding intrauterine fluid accumulation was observed, with no differences between treatments (P < 0.05). Polymorphonuclear neutrophil numbers and concentrations were higher in the first flushing compared with the second, and PMN concentration was higher in GLY-SPL than in GLY-INRA (P < 0.05). Pregnancy rates in GLY-SPL, GLY-INRA, EG-INRA, and GLY-NN were 8/13, 3/13, 2/8, and 1/5, respectively. There was no significant difference either between the two cryoprotectants re-extended in INRA, or between re-extension groups. There was however a trend for GLY-SPL to improve pregnancy rates compared with GLY-INRA (P = 0.055). These results indicate that it is possible to obtain similar postthaw sperm motility and pregnancy rates using GLY or EG as a cryoprotectant for donkey semen, and that in the conditions of this study the re-extension in SPL of thawed semen before AI showed a trend toward the improvement of fertility and increased PMN concentration in uterine flushings. PMID:22979965

Rota, A; Panzani, D; Sabatini, C; Camillo, F

2012-09-12

258

Differential effects of plant ontogeny and damage type on phloem and foliage monoterpenes in jack pine (Pinus banksiana).  

PubMed

Coniferous trees have both constitutive and inducible defences that deter or kill herbivores and pathogens. We investigated constitutive and induced monoterpene responses of jack pine (Pinus banksiana Lamb.) to a number of damage types: a fungal associate of the mountain pine beetle (Dendroctonus ponderosae Hopkins), Grosmannia clavigera (Robinson-Jeffrey & R.W. Davidson); two phytohormones, methyl jasmonate (MJ) and methyl salicylate (MS); simulated herbivory; and mechanical wounding. We only included the fungal, MJ and mechanical wounding treatments in the field experiments while all treatments were part of the greenhouse studies. We focused on both constitutive and induced responses between juvenile and mature jack pine trees and differences in defences between phloem and needles. We found that phytohormone applications and fungal inoculation resulted in the greatest increase in monoterpenes in both juvenile and mature trees. Additionally, damage types differentially affected the proportions of individual monoterpenes: MJ-treated mature trees had higher myrcene and ?-pinene than fungal-inoculated mature trees, while needles of juveniles inoculated with the fungus contained higher limonene than MJ- or MS-treated juveniles. Although the constitutive monoterpenes were higher in the phloem of juveniles than mature jack pine trees, the phloem of mature trees had a much higher magnitude of induction. Further, induced monoterpene concentrations in juveniles were higher in phloem than in needles. There was no difference in monoterpene concentration between phytohormone applications and G. clavigera inoculation in mature trees, while in juvenile trees MJ was different from both G. clavigera and simulated herbivory in needle monoterpenes, but there was no difference between phytohormone applications and simulated herbivory in the phloem. PMID:22659460

Erbilgin, Nadir; Colgan, L Jessie

2012-06-01

259

Zn uptake, physiological response and stress attenuation in mycorrhizal jack bean growing in soil with increasing Zn concentrations.  

PubMed

The influence of arbuscular mycorrhizal fungi (AMF) inoculation on Canavalia ensiformis growth, nutrient and Zn uptake, and on some physiological parameters in response to increasing soil Zn concentrations was studied. Treatments were applied in seven replicates in a 2 x 4 factorial design, consisting of the inoculation or not with the AMF Glomus etunicatum, and the addition of Zn to soil at the concentrations of 0, 100, 300 and 900 mg kg(-1). AMF inoculation enhanced the accumulation of Zn in tissues and promoted biomass yields and root nodulation. Mycorrhizal plants exhibited relative tolerance to Zn up to 300 mg kg(-1) without exhibiting visual symptoms of toxicity, in contrast to non-mycorrhizal plants which exhibited a significant growth reduction at the same soil Zn concentration. The highest concentration of Zn added to soil was highly toxic to the plants. Leaves of plants grown in high Zn concentration exhibited a Zn-induced proline accumulation and also an increase in soluble amino acid contents; however proline contents were lower in mycorrhizal jack beans. Plants in association or not with the AMF exhibited marked differences in the foliar soluble amino acid profile and composition in response to Zn addition to soil. In general, Zn induced oxidative stress which could be verified by increased lipid peroxidation rates and changes in catalase, ascorbate peroxidase, glutathione reductase and superoxide dismutase activities. In summary, G. etunicatum was able to maintain an efficient symbiosis with jack bean plants in moderately contaminated Zn-soils, improving plant performance under those conditions, which is likely to be due to a combination of physiological and nutritional changes caused by the intimate relation between fungus and plant. The enhanced Zn uptake by AMF inoculated jack bean plants might be of interest for phytoremediation purposes. PMID:19268339

Andrade, Sara A L; Gratão, Priscila L; Schiavinato, Marlene A; Silveira, Adriana P D; Azevedo, Ricardo A; Mazzafera, Paulo

2009-03-05

260

Jack-and-Master Trait Responses to Elevated CO2 and N: A Comparison of Native and Introduced Phragmites australis  

PubMed Central

Global change is predicted to promote plant invasions world-wide, reducing biodiversity and ecosystem function. Phenotypic plasticity may influence the ability of introduced plant species to invade and dominate extant communities. However, interpreting differences in plasticity can be confounded by phylogenetic differences in morphology and physiology. Here we present a novel case investigating the role of fitness trait values and phenotypic plasticity to global change factors between conspecific lineages of Phragmites australis. We hypothesized that due to observed differences in the competitive success of North American-native and Eurasian-introduced P. australis genotypes, Eurasian-introduced P. australis would exhibit greater fitness in response to global change factors. Plasticity and plant performance to ambient and predicted levels of carbon dioxide and nitrogen pollution were investigated to understand how invasion pressure may change in North America under a realistic global change scenario. We found that the introduced Eurasian genotype expressed greater mean trait values in nearly every ecophysiological trait measured – aboveground and belowground – to elevated CO2 and nitrogen, outperforming the native North American conspecific by a factor of two to three under every global change scenario. This response is consistent with “jack and master” phenotypic plasticity. We suggest that differences in plant nitrogen productivity, specific leaf area, belowground biomass allocation, and inherently higher relative growth rate are the plant traits that may enhance invasion of Eurasian Phragmites in North America. Given the high degree of genotypic variability within this species, and our limited number of genotypes, our results must be interpreted cautiously. Our study is the first to demonstrate the potential importance of jack-and-master phenotypic plasticity in plant invasions when facing imminent global change conditions. We suggest that jack-and-master invasive genotypes and/or species similar to introduced P. australis will have an increased ecological fitness, facilitating their invasion in both stressful and resource rich environments.

Mozdzer, Thomas J.; Megonigal, J. Patrick

2012-01-01

261

Jack-and-master trait responses to elevated CO2 and N: a comparison of native and introduced Phragmites australis.  

PubMed

Global change is predicted to promote plant invasions world-wide, reducing biodiversity and ecosystem function. Phenotypic plasticity may influence the ability of introduced plant species to invade and dominate extant communities. However, interpreting differences in plasticity can be confounded by phylogenetic differences in morphology and physiology. Here we present a novel case investigating the role of fitness trait values and phenotypic plasticity to global change factors between conspecific lineages of Phragmites australis. We hypothesized that due to observed differences in the competitive success of North American-native and Eurasian-introduced P. australis genotypes, Eurasian-introduced P. australis would exhibit greater fitness in response to global change factors. Plasticity and plant performance to ambient and predicted levels of carbon dioxide and nitrogen pollution were investigated to understand how invasion pressure may change in North America under a realistic global change scenario. We found that the introduced Eurasian genotype expressed greater mean trait values in nearly every ecophysiological trait measured--aboveground and belowground--to elevated CO(2) and nitrogen, outperforming the native North American conspecific by a factor of two to three under every global change scenario. This response is consistent with "jack and master" phenotypic plasticity. We suggest that differences in plant nitrogen productivity, specific leaf area, belowground biomass allocation, and inherently higher relative growth rate are the plant traits that may enhance invasion of Eurasian Phragmites in North America. Given the high degree of genotypic variability within this species, and our limited number of genotypes, our results must be interpreted cautiously. Our study is the first to demonstrate the potential importance of jack-and-master phenotypic plasticity in plant invasions when facing imminent global change conditions. We suggest that jack-and-master invasive genotypes and/or species similar to introduced P. australis will have an increased ecological fitness, facilitating their invasion in both stressful and resource rich environments. PMID:23118844

Mozdzer, Thomas J; Megonigal, J Patrick

2012-10-31

262

Soil surface CO2 flux increases with successional time in a fire scar chronosequence of Canadian boreal jack pine forest  

NASA Astrophysics Data System (ADS)

To fully understand the carbon (C) cycle impacts of forest fires, both C emissions during the fire and post-disturbance fluxes need to be considered. The latter are dominated by soil surface CO2 flux (Fs), which is still subject to large uncertainties. Fire is generally regarded as the most important factor influencing succession in the boreal forest biome and fire dependant species such as jack pine are widespread. In May 2007, we took concurrent Fs and soil temperature (Ts) measurements in boreal jack pine fire scars aged between 0 and 59 years since fire. To allow comparisons between scars, we adjusted Fs for Ts (FsT) using a Q10 of 2. Mean FsT ranged from 0.56 (± 0.30 sd) to 1.94 (± 0.74 sd) ?mol CO2 m-2 s-1. Our results indicate a difference in mean FsT between recently burned (4 to 8 days post fire) and non-burned mature (59 years since fire) forest (P < 0.001), though no difference was detected between recently burned (4 to 8 days post fire) and non-burned young (16 years since fire) forest (P = 0.785). There was a difference in mean FsT between previously young (16 years since fire) and intermediate aged (32 years since fire) scars that were both subject to fire in 2007 (P < 0.001). However, there was no difference in mean FsT between mature (59 years since fire) and intermediate aged (32 years since fire) scars that were both subjected to fire in 2007 (P = 0.226). Furthermore, there was no difference in mean FsT between mature (59 years since fire) and young scars (16 years since fire) that were both subjected to fire in 2007 (P = 0.186). There was an increase in FsT with time since fire for the chronosequence 0, 16 and 59 years post fire (P < 0.001). Our results lead us to hypothesise that the autotrophic:heterotrophic soil respiration ratio increases over post-fire successional time in boreal jack pine systems, though this should be explored in future research. The results of this study contribute to a better quantitative understanding of Fs in boreal jack pine fire scars and will facilitate meta-analyses of Fs in fire scar chronosequences.

Smith, D. R.; Kaduk, J. D.; Balzter, H.; Wooster, M. J.; Mottram, G. N.; Hartley, G.; Lynham, T. J.; Studens, J.; Curry, J.; Stocks, B. J.

2010-05-01

263

An Ontogenetic Study of Canavanine Formation in the Fruit of Jack Bean, Canavalia ensiformis (L.) DC. 1  

PubMed Central

An ontogenetic study of canavanine formation in the fruit of jack bean, Canavalia ensiformis (L.) DC. was conducted. Evidence was presented to show that the ovary wall is the reservoir for seed canavanine. The testa possesses sufficient canavanine to account for the continued elevation in seed canavanine after the pod senesces. The seed canavanine concentration is not constant inasmuch as the canavanine content per milligram dry weight or soluble protein increases abruptly with seed growth and levels off only with the onset of fruit ripening.

Rosenthal, Gerald A.

1971-01-01

264

Assessment of possible sources of microbiological contamination in the water column and streambed sediment of the Jacks Fork, Ozark National Scenic Riverways, Missouri - Phase III  

USGS Publications Warehouse

In 1998, a 5 river-mile reach of the Jacks Fork was included on Missouri's list of impaired waters as required by Section 303(d) of the Federal Clean Water Act. The identified pollutant on the Jacks Fork was fecal coliform bacteria. The length of the impaired reach was changed to 7 miles on the Missouri 2002 303(d) list because of data indicating the fecal coliform bacteria problem existed over a broader area. The U.S. Geological Survey, in cooperation with the National Park Service, conducted a study to better understand the extent and sources of microbiological contamination within the Jacks Fork from Alley Spring to the mouth, which includes the 7-mile 303(d) reach. Ten sites were sampled from June 2003 through October 2003 and from June 2004 through October 2004. Water-column and streambed sediment samples were collected from main-stem and tributary sites mostly during base-flow conditions during a variety of recreational season river uses and analyzed for fecal coliform and Escherichia coli bacteria. Isolates of Escherichia coli obtained from water samples collected at five sites were submitted for rep-PCR analysis to identify presumptive sources of fecal indicator bacteria in the Jacks Fork. Results indicate that recreational users (including boaters and swimmers) are not the primary source of fecal coliform bacteria in the Jacks Fork; rather, the presence of fecal coliform bacteria is associated with other animals, of which horses are the primary source. Increases in fecal coliform bacteria densities in the Jacks Fork are associated with cross-country horseback trail-riding events.

Davis, Jerri V.; Barr, Miya N.

2006-01-01

265

Hafnium isotopes in Jack Hills zircons and the formation of the Hadean crust  

NASA Astrophysics Data System (ADS)

New bulk Hf and Pb isotope data were obtained for 63 leached single zircons from Jack Hills (JH), Western Australia, using solution chemistry and, respectively, MC-ICP MS and ICP-MS. With the exception of one "young" zircon at 3.32 Ga, the remainder of the selected grains were previously dated at > 3.9 Ga by ion-microprobe. This work extends and complements the solution chemistry data of Harrison et al. [Harrison, T.M., Blichert-Toft, J., Müller, W., Albarède, F., Holden, P., Mojzsis, S.J., 2005. Heterogeneous Hadean hafnium: evidence of continental crust at 4.4 to 4.5 Ga. Science 310, 1947-1950.] but uses bulk rather than in situ Pb-Pb ages to interpret the Hf isotope data. This larger data set is used to explore whether the host rocks of the JH zircons formed as a succession of pulses or rather as a single event, and to calculate the age and assess the nature of their crustal protolith. We find that the parent granites of the JH zircons analyzed here formed during a single pulse 4.1 ± 0.1 Ga ago by the remelting of a 4.30-4.36 Ga old protolith. Monte Carlo modeling indicates that the 176Lu/ 177Hf ratios of this material (< 0.01) are unlike the ratios of modern-type oceanic crust and island arc rocks but rather fit a tonalite-trondhjemite-granodiorite (TTG) source. TTGs themselves derived their inordinately enriched character from a basaltic progenitor which corresponds to the missing enriched reservoir identified by the 143Nd- 144Nd, 142Nd- 144Nd, and 176Hf/ 177Hf systematics of Archean rocks. We speculate that crystallization of the magma ocean in the presence of garnet left the upper mantle and an early basaltic crust enriched in incompatible elements. Reaction of this early crust with the overlying hydrosphere and subsequent foundering into the mantle gave rise at ˜ 4.3 Ga to the TTG protolith of the JH granites. Dating the onset of plate tectonics therefore depends on whether TTGs can be considered as subduction zone magmas or not.

Blichert-Toft, Janne; Albarède, Francis

2008-01-01

266

Simultaneous estimation of 16?-hydroxycleroda-3,13(14) Z-dien-15,16-olide from Polyalthia longifolia and its metabolite in hamster plasma: application to pharmacokinetic study.  

PubMed

A selective and sensitive LC-MS-MS method was developed and validated for simultaneous estimation and pharmacokinetic studies of 16?-hydroxycleroda-3,13(14) Z-dien-15,16-olide (K-09) obtained from Polyalthia longifolia and its metabolite (K-9T), a novel antidyslipidemic agent. Sample clean-up involved liquid-liquid extraction of both the analytes and internal standard (rosuvastatin) from 200??L of hamster plasma. The analytes were chromatographically separated on a Symmetry-Shield C?? (5?µm, 4.6?×?150?mm) column, using acetonitrile-0.1% aqueous formic acid (92:08, v/v) as the mobile phase. Detection was performed using negative ion electrospray ionization in multiple reaction monitoring mode. The MS/MS response was linear over the concentration range 1.56-200?ng/mL, with a correlation coefficient (r²) of 0.998 or better. The within- and between-batch precisions (relative standard deviation, %RSD) and the accuracy (percentage bias) were within acceptable limits as per FDA guidelines. The validated method was successfully applied to reveal the pharmacokinetic parameters of K-09 and metabolite after oral administration. This method will therefore be highly useful for future studies of K-09 and metabolite K-9T pharmacokinetics in preclinical and clinical studies. PMID:21773982

Bhatta, R S; Kumar, Devendra; Chhonker, Y S; Kumar, Deepak; Singh, Suriya P; Sashidhara, Koneni V; Jain, G K

2011-07-20

267

In vivo efficacy and synergistic interaction of 16?-hydroxycleroda-3, 13 (14) Z-dien-15, 16-olide, a clerodane diterpene from Polyalthia longifolia against methicillin-resistant Staphylococcus aureus.  

PubMed

The Staphylococcus aureus bacterium, a nosocomial pathogen often causing untreatable and lethal infection in patients, mutated to become resistant to all the first-line drugs. The present study details the potential of clerodane diterpene 16?-hydroxycleroda-3, 13 (14) Z-dien-15, 16-olide (CD) isolated from Polyalthia longifolia against methicillin-resistant S. aureus (MRSA) through in vitro and in vivo assays. Minimum inhibitory concentration (MIC) of CD exhibited significant anti-MRSA activity (15.625-31.25 mg/l) against reference strain and seven clinical isolates, while time kill assays at graded MICs indicated 2.78-9.59- and 2.9-6.18-fold reduction in growth of reference strain and clinical isolates of S. aureus, respectively. The combined effect of the CD and 7.5 % NaCl resulted in significant reduction in microbial count within 24 h, indicating the loss of the salt tolerance ability of S. aureus. Further, release of 260-nm absorbing material and flow cytometric analysis revealed an increased uptake of propidium iodide. These assays may indicate the membrane-damaging potential of CD. The molecule CD was found to interact synergistically with clinically used antibiotics (FICI???0.5) against all clinical isolates. In infected mice, CD significantly (P?

Gupta, Vivek Kumar; Verma, Surjeet; Pal, Anirban; Srivastava, Santosh Kumar; Srivastava, Pramod Kumar; Darokar, Mahendra P

2013-08-30

268

An Easy and Well-Ordered Way to Learn: Schooling at Home in Louisa May Alcott's "Eight Cousins" and "Jack and Jill"  

ERIC Educational Resources Information Center

|Louisa May Alcott's juvenile fiction is often focused on aspects of children's lives that were also topics of reform in nineteenth century America. In "Jack and Jill" and "Eight Cousins," Alcott presents an idealized picture of child-centered learning, building on three central principals: (1) Good teachers are sympathetic and understanding of…

Davis, Cathlin M.

2011-01-01

269

Global and targeted proteomics in developing jack bean (Canavalia ensiformis) seedlings: an investigation of urease isoforms mobilization in early stages of development.  

PubMed

Jack bean (Canavalia ensiformis) seeds are toxic for insects and the toxicity is due in part to an entomotoxic peptide enzymatically released from ureases in the midgut of susceptible insects. To characterize expression of urease isoforms in jack bean seed, particularly the more abundant urease isoform (JBU), quantitative proteomics was performed. Quiescent through 5-day germinating seeds were analyzed at 1-day intervals using a total proteomics approach (TPA) and also after co-immunoprecipitation (co-IP) with anti-JBU monoclonal antibodies. Jack bean proteins for TPA and co-IP were pre-fractionated by SDS-PAGE, segmented for in-gel trypsin digestion, and analyzed by liquid chromatography coupled to nanospray ionization tandem mass spectrometry (LC-MS/MS). Acquired MS(2) data were searched against a comprehensive plant database and the MEROPS peptidase database, in the absence of a jack bean EST database. Proteins detected in TPA were quantified by label-free spectral counting. A total of 234 and 106 non-redundant proteins were detected in TPA and co-IP, respectively. Mobilization of JBU was observed beginning 3-days after imbibition indicating that the entomotoxic peptide was not formed before this stage. A predicted urease isoform, JBURE-IIb, was detected in the co-IP study. Additionally, 46 plastid proteins, including RuBisCO and plastid ATPase were pulled down with JBU antibodies. These data shed new light on the behavior of urease isoforms during the early stages of plant development. PMID:20978823

Demartini, Diogo Ribeiro; Carlini, Célia Regina; Thelen, Jay J

2010-10-27

270

Purification of urease from jack bean (Canavalia ensiformis) with copper (II) chelated poly(hydroxyethyl methacrylate-N-methacryloyl-(L)-histidine methyl ester) cryogels.  

PubMed

Jack bean (Canavalia ensiformis) is the source of interesting proteins that contribute to modern biochemistry, and urease is the primary of these proteins. Owing to its role and occurrence in nature, urease has become a part of extensive studies. In this study, jack bean urease (JBU) was purified by immobilized metal affinity chromatography using Cu(2+) chelated poly(hydroxyethyl methacrylate-N-methacryloyl-(L)-histidine methyl ester) [PHEMAH-Cu(2+)]-based cryogels. PHEMAH-Cu(2+) cryogel was synthesized and characterized for swelling degree, morphology (by SEM), N-methacryloyl-(L)-histidine methyl ester and Cu(2+) incorporation (by elemental analysis and atomic absorption spectrophotometry). The binding of JBU to PHEMAH-Cu(2+) cryogel was optimized by examining the effect of pH, flow rate and JBU concentration on binding. The maximal binding of JBU was 23.2 mg/dry gram of adsorbent. The maximal binding of JBU extracted from jack bean meal was 67.8 mg/dry gram of adsorbent. The elution of JBU from cryogel column was accomplished by 1.0 M NaCl in 20 mM phosphate buffer (pH 8.0). Molecular weight and purity of JBU from jack bean meal was estimated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. It was observed that JBU could be repeatedly bound and eluted from (PHEMAH)-Cu(2+) cryogel with less than 10% loss in column capacity. PMID:23108614

Tekiner, P?nar; Perçin, I?ik; Ergün, Bahar; Yavuz, Handan; Aksöz, Erol

2012-11-01

271

Geohydrologic feasibility study of the greater Green River Basin for the potential applicability of Jack W. McIntyre`s patented tool  

SciTech Connect

Geraghty & Miller, Inc, of Midland, Texas conducted geologic and hydrologic feasibility studies of the potential applicability of Jack McIntyre`s patented tool for the recovery of natural gas from coalbed/sand formations in the Greater Green River Basin through literature surveys.

Reed, P.D.

1994-02-01

272

Geohydrologic study of the Michigan Basin for the applicability of Jack W. McIntyre`s patented process for simultaneous gas recovery and water disposal in production wells  

Microsoft Academic Search

Geraghty & Miller, Inc. of Midland, Texas conducted a geohydrologic study of the Michigan Basin to evaluate the applicability of Jack McIntyre`s patented process for gas recovery and water disposal in production wells. A review of available publications was conducted to identify, (1) natural gas reservoirs which generate large quantities of gas and water, and (2) underground injection zones for

Maryn

1994-01-01

273

The transformational leader as pedagogue, physician, architect, commander, and saint: Five root metaphors in Jack Welch's letters to stockholders of General Electric  

Microsoft Academic Search

We analyse the corpus of CEO letters to stockholders that were signed by a widely revered business leader, Jack Welch, during his tenure as CEO of the General Electric Company [GE], 1981—2000. Our discussion is located within theory pertaining to transformational leadership. We examine Welch's language from the standpoint of how transformational leadership can be conceived as a rhetorical artefact

Joel Amernic; Russell Craig; Dennis Tourish

2007-01-01

274

Micron-Scale Correlations Among Ti, P, Ce, and Y in Hadean Jack Hills Zircons  

NASA Astrophysics Data System (ADS)

Detrital zircons and the inclusions found therein are our only mineralogical constraints on geologic events that occurred on the Hadean Earth. These zircons are commonly small (ca. <100 ?m in the longest dimension) and preserve micron to sub-micron chemical zonations indicative of a dynamic petrological history. Trace elements within zircon are of particular interest because concentrations and ratios of these elements can provide information regarding chemical and physical conditions during zircon growth. In this study, we analyzed Hadean-age detrital zircons from Archean metasediment in the Jack Hills (Australia) using the Caltech Microanalysis Center Cameca NanoSIMS 50L. Trace elements analyzed included Ti, P, Ce, and Y. Ti- thermometry [1,2,3] can potentially constrain growth and/or re-equilibration temperatures of zircons; P, Ce, and Y are known to enter the zircon lattice by the coupled xenotime-type substitution mechanism: (Y, REE)3+ + P5+ = Zr4+ + Si4+ [5]. The 89Y/28Si ratio was observed to correlate with, and was used as a proxy for, cathodoluminescence (CL) banding. Growth features manifested in CL (e.g., sector, oscillatory zoning) were observed in all zircons analyzed. CL zones vary from <1 ?m to several microns in width; therefore, the NanoSIMS---with a beam diameter resolved to ca. 250 nm on the sample surface when operating with an O- primary beam---is uniquely suited for this scale of analysis. Regions displaying CL banding were imaged as 20 x 20 ?m areas. All elements were normalized to 28Si; 49Ti/28Si ratios were converted to [Ti] via calibration based on analyses of synthetic, high-Ti zircons (provided by B. Watson) that were independently analyzed on Caltech's JEOL JXA-8200 electron microprobe. We observe three types of relationships between trace element distribution and CL banding in the zircons imaged: 1) strong positive correlations between CL banding, P, Ce, and Ti; 2) subtle positive correlations between CL banding, P, Ce, and Ti; 3) no correlation between minor/trace elements and CL banding. Positive correlations between CL banding, 3+ cations, and [Ti] have previously been reported by Holden et al. [4]. In this study, gradients at least as sharp as a factor of ~3 in [Ti] are observed between adjacent CL bands in the strongly correlated images. These images also have the highest absolute concentrations of trace elements and display both sector and oscillatory zoning in CL. The correlations observed may be due to: temperature-dependent equilibrium partitioning of all trace elements during rapid cycles in growth temperature; episodic diffusion-limited enrichment of incompatible trace elements in the boundary layer melt adjacent to growing crystals; and/or kinetically controlled, non- equilibrium crystal-melt partitioning caused by trace element enrichments in the boundary layer melt surrounding fast-growing grains (e.g., [6]). We will discriminate between these alternatives based on quantitative relationships between relative enrichments of [Ti] and other trace elements. [1]Watson, E.B. & Harrison, T.M. (2005) Science 308, 841-844. [2]Watson, E.B., Wark, D.A., & Thomas, J.B. (2006) CMP 151, 413-433. [3]Ferry, J.M. & Watson, E.B. (2007) CMP 154, 429-437. [4] Holden, P. et al. (2005) Eos Trans. AGU 86 (52) Fall Meet. Suppl., Abstract V41F-1539. [5] Speer, J.A. (1982) Zircon. In Rev. Min. 5 (ed. P.H. Ribbe), 67-112. [6] Watson, E.B. (2004) GCA 68, 1473-1488.

Hofmann, A. E.; Cavosie, A. J.; Valley, J. W.; Eiler, J. M.

2007-12-01

275

Electron-quasihole duality and second-order differential equation for Read-Rezayi and Jack wave functions  

NASA Astrophysics Data System (ADS)

We consider the quasihole wave functions of the non-Abelian Read-Rezayi quantum-Hall states which are given by the conformal blocks of the minimal model WAk-1(k+1,k+2) of the WAk-1 algebra. By studying the degenerate representations of this conformal field theories, we derive a second-order differential equation satisfied by a general many-quasihole wave function. We find a duality between the differential equations fixing the electron and quasihole wave functions. They both satisfy the Laplace-Beltrami equation. We use this equation to obtain an analytic expression for the generic wave function with one excess flux. These results also apply to the more general models WAk-1(k+1,k+r) corresponding to the recently introduced Jack states.

Estienne, Benoit; Bernevig, B. Andrei; Santachiara, Raoul

2010-11-01

276

Jack fruit lectin-specific glycoconjugate expression during the progression of cervical intraepithelial neoplasia: a study on exfoliated cells.  

PubMed

The expression of glycoconjugates specific to Jack fruit lectin (JFL) was studied in the exfoliated squamous cells of different grades of intraepithelial and invasive neoplasia of the uterine cervix. It was observed that while normal cells showed almost negative binding, the lectin binding percentage of squamous cells significantly increased with increasing atypia of the epithelium. Correlation analysis between different groups revealed that mild lectin binding in cells had a negative correlation and intense binding had a positive correlation with various stages of tumor progression. These results indicate that the number of cells with aberrant expression of glycoconjugates increases as neoplastic transformation advances. The percentage of labeled and unlabeled cells also shows a continuous transition from low to severe grades of cervical intraepithelial neoplasia and invasive carcinomas. The present study therefore shows that JFL may be used as a probe for further elaboration of detection and grading of precancerous and cancerous lesions of the uterine cervix. PMID:7924807

Pillai, K R; Remani, P; Kannan, S; Mathew, A; Sujathan, K; Vijayakumar, T; Nair, M K

1994-01-01

277

Electron-quasihole duality and second-order differential equation for Read-Rezayi and Jack wave functions  

SciTech Connect

We consider the quasihole wave functions of the non-Abelian Read-Rezayi quantum-Hall states which are given by the conformal blocks of the minimal model WA{sub k-1}(k+1,k+2) of the WA{sub k-1} algebra. By studying the degenerate representations of this conformal field theories, we derive a second-order differential equation satisfied by a general many-quasihole wave function. We find a duality between the differential equations fixing the electron and quasihole wave functions. They both satisfy the Laplace-Beltrami equation. We use this equation to obtain an analytic expression for the generic wave function with one excess flux. These results also apply to the more general models WA{sub k-1}(k+1,k+r) corresponding to the recently introduced Jack states.

Estienne, Benoit [Institute for Theoretical Physics, Universiteit van Amsterdam, Valckenierstraat 65, 1018 XE Amsterdam (Netherlands); Bernevig, B. Andrei [Department of Physics, Princeton University, Princeton, New Jersey 08544 (United States); Santachiara, Raoul [LPTMS, UMR 8626, CNRS-Universite Paris-Sud, Batiment 100, 91405 Orsay (France)

2010-11-15

278

Jack bean ?-mannosidase (Jb?-man): tolerance to alkali, chelating and reducing agents and energetics of catalysis and inhibition.  

PubMed

Investigations of the catalytic and structural transitions of jack bean ?-mannosidase (Jb?-man) are described in the present paper. The enzyme was maximally stable at pH 5.0; however, when incubated in the pH range of 11.0-12.0, showed 1.3 times higher activity and also stability for longer time. The free amino group at or near the active site was probably involved in the stability and activation mechanism. The active site is constituted by the association of two unidentical subunits connected by disulfide linkages. The metalloenzyme has Zn(2+) ions tightly bound and chelation reduces the thermal stability of the protein. Energetics of catalysis and thermodynamics of inhibition of the enzyme were also carried out. PMID:21924285

Kumar, Avinash; Gaikwad, Sushama M

2011-09-08

279

Comparative study of the functional properties of bambarra groundnut ( Voandzeia subterranean), jack bean ( Canavalia ensiformis) and mucuna bean ( Mucuna pruriens) flours  

Microsoft Academic Search

Functional properties of bambarra groundnut flour (BGF), jack bean flour (JBF) and mucuna bean (MBF) were determined. pH dependent protein solubility profile revealed that highest solubility in all flours was at pH 10, while minimum solubility was obtained at pH 4, which correspond to the isoelectric point. Gelation capacity was minimal at pH 4 for all of the flours. Increase

K. O. Adebowale; O. S. Lawal

2004-01-01

280

Effect of clear-cutting, prescribed burning and scarification on litter decomposition in an eastern Ontario jack pine (Pinus banksiana) ecosystem  

Microsoft Academic Search

Mass losses of litter bags containing leaf litter of Pinus banksiana Lamb., Quercus rubra L., Pteridium aquilium (L.) Kuhn, and Populus tremuloides Mchx. were compared in a jack pine ecosystem after clear-cutting, clear-cutting plus prescribed burning, and clear-cutting plus disk trench- ing scarification. Controls consisted of litterbags left in undisturbed plots. Mass losses were significantly affected by treatment types and

Luc C. Duchesne; W. Wetzel

1999-01-01

281

Effects of turbidity on survival of larval ayu and red sea bream exposed to predation by jack mackerel and moon jellyfish  

Microsoft Academic Search

We conducted laboratory experiments to examine the effects of turbidity on the survival of red sea bream Pagrus major and ayu Plecoglossus altivelis altivelis larvae when exposed to either visual (jack mackerel juveniles) or tactile (moon jellyfish) predators. The experiments were\\u000a conducted in 30-l tanks with three different levels of turbidity obtained by dissolving 0, 50, or 300 ppm kaolin. Predators

Ryosuke Ohata; Reiji Masuda; Masahiro Ueno; Yuichi Fukunishi; Yoh Yamashita

2011-01-01

282

The effect of phosphate buffer in the range of pH 5.80–8.07 on jack bean urease activity  

Microsoft Academic Search

The effect of phosphate buffer on the activity of jack bean urease was studied in the range of pH 5.80–8.07. The inhibition constants of phosphate buffer were determined by measuring initial reaction rates at each pH for a series of buffer concentrations at a series of urea concentrations. It was shown that: (1) at pH 5.80–7.49 the buffer is a

Barbara Krajewska; Wies?awa Zaborska

1999-01-01

283

Effect of temperature on the swimming endurance and post-exercise recovery of jack mackerel Trachurus japonicus as determined by ECG monitoring  

Microsoft Academic Search

The effect of temperature on the swimming performance of jack mackerel Trachurus japonicus was examined in a flume tank by measuring the swimming endurance time and heart rate. The lower swimming performance was\\u000a observed at 10°C (the lowest temperature tested), manifesting as the shortest endurance time and the slowest maximum sustained\\u000a speed. ECG measurements of the heart rate under free-swimming

Nofrizal; Kazutaka Yanase; Takafumi Arimoto

2009-01-01

284

Re-evaluation of the origin and evolution of > 4.2 Ga zircons from the Jack Hills metasedimentary rocks  

NASA Astrophysics Data System (ADS)

New data are presented on internal structures, U-Pb systematics and oxygen isotope compositions of eight detrital zircons with ages greater than 4.2 Ga, from the Jack Hills metasedimentary belt, Australia. Cathodoluminescence imaging, ion-microprobe U-Pb and oxygen isotope results show evidence for an extensive period of complex zircon growth, secondary reaction and U-Pb isotopic disturbance from 4.36 to 3.90 Ga. In addition many of the zircons have discordant U-Pb systems and excess common Pb indicating a superimposed, relatively recent, reaction between radiation damaged zircon and low temperature fluids. The significance of oxygen isotope compositions for zircons with complex internal structures and U-Pb systems is complicated by uncertainty in the origin of the grains and the unknown effect of later reactions. However, a minority of grains with sharp oscillatory zoning, uniform and concordant U-Pb systems, igneous Th-U ratios and low common Pb contents, are interpreted as undisturbed primary magmatic zircons. The oldest identified, oscillatory zoned, magmatic grain, with an age 4363 ± 20 Ma, is one of a few reported magmatic grains with this age, which is interpreted as the oldest reliable age for Hadean magmatic zircons. Mantle ?18O values are reported for these zircons. Younger oscillatory zoned zircon, including oscillatory zoned cores in complex grains, have ?18O values lower than 6.5‰, which are within the range of ion microprobe analysed ?18O values for zircons in high temperature equilibrium with the normal mantle rocks of 5.3 ± 0.6‰ (2 standard deviations). These values are also within the range of ?18O values found in lunar zircons. The absence of heavy oxygen in the grains that can be interpreted as primary magmatic zircons and the complex history over the period from 4.36 to 3.9 Ga, seen in all other Jack Hills zircons and reflected in the internal structures and U-Pb isotopic systems, questions the model for the early Earth involving long intervals of relatively temperate conditions from 4.4 to 4.0 Ga that were conducive to oceans and possibly life.

Nemchin, A. A.; Pidgeon, R. T.; Whitehouse, M. J.

2006-04-01

285

Geohydrologic feasibility study of the Piceance Basin of Colorado for the potential applicability of Jack W. McIntyre`s patented gas/produced water separation process  

SciTech Connect

Geraghty & Miller, Inc. of Midland, Texas conducted geologic and hydrologic feasibility studies of the potential applicability of Jack McIntyre`s patented process for the recovery of natural gas from coalbed/sand formations in the Piceance Basin through literature surveys. Jack McIntyre`s tool separates produced water from gas and disposes of the water downhole into aquifers unused because of poor water quality, uneconomic lifting costs or poor aquifer deliverability. The beneficial aspects of this technology are two fold. The process increases the potential for recovering previously uneconomic gas resources by reducing produced water lifting, treatment and disposal costs. Of greater importance is the advantage of lessening the environmental impact of produced water by downhole disposal. Results from the survey indicate that research in the Piceance Basin includes studies of the geologic, hydrogeologic, conventional and unconventional recovery oil and gas technologies. Available information is mostly found centered upon the geology and hydrology for the Paleozoic and Mesozoic sediments. Lesser information is available on production technology because of the limited number of wells currently producing in the basin. Limited information is available on the baseline geochemistry of the coal/sand formation waters and that of the potential disposal zones. No determination was made of the compatibility of these waters. The study also indicates that water is often produced in variable quantities with gas from several gas productive formations which would indicate that there are potential applications for Jack McIntyre`s patented tool in the Piceance Basin.

Kieffer, F.

1994-02-01

286

Estimates of in situ deformability with an NX borehole jack, Spent Fuel Test - Climax, Nevada test site  

SciTech Connect

A series of borehole modulus measurements was obtained at the Spent Fuel Test - Climax (SFT-C) facility following removal of heat sources and a subsequent 1-year cooling period. A total of 212 measurements were obtained using a standard hardrock NX borehole (Goodman) jack. The results of 64 measurements made at the site before heating were reanalyzed for comparison with the post-heat data. Modulus values were calculated from the straight-line portion of the pressure vs displacement curves. Although the deformation modulus was observed to be highly variable, models were developed to explain much of this variability. Typically, spacial effects, anisotropy, and heating effects were present. The test results indicate that the deformation modulus tended to increase in the pillars between the underground openings where temperatures increased about 10{sup 0}C above the ambient 24{sup 0}C during the SFT-C. Conversely, a decrease in modulus was observed where temperatures were near 60{sup 0}C for a three-year period. In most cases, we found the modulus values to be slightly higher for vertical than for horizontal loading. There was a tendency for the modulus to be lower near excavated openings. While this effect was not ubiquitous, it was statistically significant.

Patrick, W.C.; Yow, J.L. Jr.; Axelrod, M.C.

1985-12-01

287

White Anglo-Saxon hopes and black Americans' Atlantic dreams: Jack Johnson and the British boxing colour bar.  

PubMed

This article examines the controversy surrounding Jack Johnson's proposed world heavyweight title fight against the British champion Bombardier Billy Wells in London (1911). In juxtaposing African Americans' often glowing discussions of European tolerance with the actual white resistance the black champion faced in Britain, including the Home Office's eventual prohibition of the match, the article explores the period's transnational discourses of race and citizenship. Indeed, as white sportsmen on both sides of the Atlantic joined together in their search for a "White Hope" to unseat Johnson, the boxing ring became an important cultural arena for interracial debates over the political and social divisions between white citizens and nonwhite subjects. Although African Americans had high hopes for their hero's European sojourn, the British backlash against the Johnson-Wells match underscored the fact that their local experiences of racial oppression were just one facet of a much broader global problem. At the same time, the proposed prizefight also made the specter of interracial conflict in the colonies all the more tangible in the British capital, provoking public discussions about the merits of U.S. racial segregation, along with the need for white Anglo-Saxon solidarity around the world. Thus, this article not only exposes the underlying connections between American Jim Crow and the racialized fault lines of British imperialism, but it also traces the "tense and tender ties" linking U.S. and African American history with the new imperial history and postcolonial studies. PMID:21510333

Runstedtler, Theresa

2010-01-01

288

Jack bean urease (EC 3.5.1.5) aggregation monitored by dynamic and static light scattering.  

PubMed

Aggregation of jack bean urease (JBU) is involved in many alterations of its biological properties, notably the ureolytic and entomotoxic activities. In order to investigate this phenomenon, protein aggregates were characterized by dynamic (DLS) and static light scattering (SLS) spectroscopies through determination of apparent hydrodynamic radii, the average molecular masses, radii of gyration and second virial coefficients. No effect of disulfide reducing agents on protein association was observed contrasting with previous reports implicating their function in the prevention of JBU aggregation. The influence of freeze-thawing cycles on protein aggregation was also investigated. Our results showed that after freeze-thawing cycles the native form of JBU with apparent hydrodynamic radius of 7 nm and radius of gyration of 12 nm is replaced by high-order oligomers and this aggregation is not reverted neither by dithiothreitol (DTT) treatment nor by high concentration of salts. Altogether the data help to understand the complex behavior of JBU in solution and may correlate with the diversity of biological properties of this enzyme. PMID:15450378

Follmer, Cristian; Pereira, Fabiano V; Da Silveira, Nádya P; Carlini, Célia R

2004-09-01

289

Some morphological and anatomical studies of leaves and flowers of Murraya paniculata (Jack) Linn. in vivo and in vitro.  

PubMed

In the present study, various explants of Murraya paniculata (Jack) Linn., such as cotyledons, shoots and young stems were cultured on MS medium supplemented with various concentrations of Benzyl Amino Purine (BAP) under 25 +/- 1 degree C with 16 h light and 8 h dark and also 8 h light and 16 h dark to obtain complete plant regeneration. In vitro flowering was observed from shoot explants cultured on MS supplemented with 0.5-2.0 mg L(-1) Naphthalene Acetic Acid (NAA) and also on MS basal medium under similar conditions. The leaves and flowers obtained from both in vivo and in vitro conditions were examined and compared. Morphological studies such as leaf clearing, epidermal peeling were studied using light and scanning electron microscope. Macromorphological studies of the flowers produced from in vivo and in vitro conditions were also examined. Morphologically, there were no differences between in vivo and in vitro flowers except the flowers produced from tissue culture systems were smaller in size with protruding stigmas. Differences were also found in the number of layers of palisade cells and the presence or absence of epicuticle layer of the leaves. Leaves produced from tissue culture system were smaller in size with membranous texture. Stomata were present only on the abaxial surfaces of both in vivo and in vitro leaves but the stomata were raised above the epidermis in the latter. PMID:18810972

Taha, Rosna Mat; Haron, Noorma Wati

2008-04-01

290

The Jack Rabbit chlorine release experiments: implications of dense gas removal from a depression and downwind concentrations.  

PubMed

The Jack Rabbit (JR) field experiment, involving releases of one or two tons of pressurized liquefied chlorine and ammonia into a depression, took place in 2010 at Dugway Proving Ground, Utah, USA. The releases, of duration about 30 s from a short pipe at a height of 2m, were directed towards the ground. The dense two phase cloud was initially confined in a depression of 2 m depth and 50 m diameter. With wind speedsabout 1.5 m s(-1), the initial cloud was not well-confined in the depression and moved downwind. Formulas suggested by Briggs et al. in 1990 in this journal satisfactorily predict the time durations of confinement. Sensitivity runs with the SLAB dense gas model show that the effect of a long confinement on maximum downwind concentrations is strongest near the depression. The model-predicted and observed maximum 20 s chlorine concentrations agree within a factor of two most of the time, as long as the release times based on Briggs' theory are used. PMID:22386303

Hanna, Steven; Britter, Rex; Argenta, Edward; Chang, Joseph

2012-02-14

291

Soil respiration and photosynthetic uptake of carbon dioxide by ground-cover plants in four ages of jack pine forest  

USGS Publications Warehouse

Soil carbon dioxide (CO2) emission (soil respiration), net CO2 exchange after photosynthetic uptake by ground-cover plants, and soil CO2 concentration versus depth below land surface were measured at four ages of jack pine (Pinus banksiana Lamb.) forest in central Saskatchewan. Soil respiration was smallest at a clear-cut site, largest in an 8-year-old stand, and decreased with stand age in 20-year-old and mature (60-75 years old) stands during May-September 1994 (12.1, 34.6, 31.5, and 24.9 mol C??m-2, respectively). Simulations of soil respiration at each stand based on continuously recorded soil temperature were within one standard deviation of measured flux for 48 of 52 measurement periods, but were 10%-30% less than linear interpolations of measured flux for the season. This was probably due to decreased soil respiration at night modeled by the temperature-flux relationships, but not documented by daytime chamber measurements. CO2 uptake by ground-cover plants ranged from 0 at the clear-cut site to 29, 25, and 9% of total growing season soil respiration at the 8-year, 20-year, and mature stands. CO2 concentrations were as great as 7150 ppmv in the upper 1 m of unsaturated zone and were proportional to measured soil respiration.

Striegl, R. G.; Wickland, K. P.

2001-01-01

292

Assessment of possible sources of microbiological contamination and water-quality characteristics of the Jacks Fork, Ozark National Scenic Riverways, Missouri; phase II  

USGS Publications Warehouse

In 1998, an 8-mile reach of the Jacks Fork was included on Missouri?s list of impaired waters as required by Section 303(d) of the Federal Clean Water Act. The identified pollutant on the Jacks Fork was fecal coliform bacteria. Potential sources of fecal contamination to the Jacks Fork include a wastewater treatment plant; campground pit-toilet or septic-system effluent; a large commercial, cross-country horseback trail riding facility; canoeists, boaters, and tubers; and cows.The U.S. Geological Survey, in cooperation with the National Park Service, conducted a study to better understand the extent and sources of microbiological contamination within the Jacks Fork from Alley Spring to the mouth, which includes the 8-mile 303(d) reach. Identification of the sources would provide the National Park Service and the State of Missouri with the information needed to craft a solution of abatement, regulation, prevention, and mitigation with the end result being the removal of the Jacks Fork from the 303(d) list. Fifteen sites were sampled from November 1999 through December 2000. An additional site was sampled one time. Samples were collected mostly during base-flow conditions during a variety of nonrecreational and recreational season river uses. Samples were analyzed for selected fecal indicator bacteria, physical properties, nutrients, and wastewater organic compounds. During the sampling period, the whole-body-contact recreation standard for fecal coliform (200 colonies per 100 milliliters of sample) was exceeded at three sites on August 10, 2000, and also at one site on May 11, June 7, and October 3, 2000. Fecal coliform densities and instantaneous loads generally increased from background concentrations at the Eminence site, peaked about 2 river miles downstream, and then decreased until the most downstream site sampled. Generally, the largest densities and loads at sites downstream from Eminence not related to wet-weather flow were observed during a trail ride held August 6 to12, 2000. A 24-hour sample collection effort was conducted the weekend of July 15 and 16, 2000, to investigate the effect that large numbers of swimmers, canoeists, and tubers had on fecal coliform densities in the Jacks Fork. Five or six samples were collected at six sites between Saturday morning and the following Sunday afternoon. No fecal coliform density at any of the sites sampled exceeded the whole-body-contact recreation standard. Because bacteria survive longer in stream-bed sediments than in water, a source of bacteria in the water column could be from resuspension of accumulated bacteria from streambed sediments. Water and streambed-sediment samples were collected at three sites on August 3, 2000, 1 week before a trail ride and again at three sites on 2 Assessment of Possible Sources of Microbiological Contamination of the Jacks Fork, Missouri?Phase II August 8, 2000, during a trail ride. Results indicate that fecal coliform bacteria densities increased substantially in the streambed sediment and the water column during the trail ride.Sixty-five Escherichia coli isolates obtained from water samples collected at 9 sites and 23 Escherichia coli isolates obtained from stream-bed-sediment samples collected at 5 sites were submitted for ribotyping analysis. Samples were collected in 2000 during a variety of nonrecreational and recreational season river uses, including trail rides, canoeing, tubing, and swimming. Of the 65 isolates from water samples, 40 percent were identified as originating from sewage, 29 percent from horse, 11 percent from cow, and 20 percent from an unknown source. Of the 23 isolates from streambed-sediment samples, 39 percent were identified as originating from sewage, 35 percent from horse, 13 percent from cow, and 13 percent from unknown sources.Analysis of physical property (dissolved oxygen, pH, specific conductance, and temperature) and nutrient (dissolved nitrite plus nitrate and total phosphorus) data

Davis, Jerri V.; Richards, Joseph M.

2002-01-01

293

Temperature- and pressure-dependent stopped-flow kinetic studies of jack bean urease. Implications for the catalytic mechanism.  

PubMed

Urease, a Ni-containing metalloenzyme, features an activity that has profound medical and agricultural implications. The mechanism of this activity, however, has not been as yet thoroughly established. Accordingly, to improve its understanding, in this study we analyzed the steady-state kinetic parameters of the enzyme (jack bean), K (M) and k (cat), measured at different temperatures and pressures. Such an analysis is useful as it provides information on the molecular nature of the intermediate and transition states of the catalytic reaction. We measured the parameters in a noninteracting buffer using a stopped-flow technique in the temperature range 15-35 °C and in the pressure range 5-132 MPa, the pressure-dependent measurements being the first of their kind performed for urease. While temperature enhanced the activity of urease, pressure inhibited the enzyme; the inhibition was biphasic. Analyzing K (M) provided the characteristics of the formation of the ES complex, and analyzing k (cat), the characteristics of the activation of ES. From the temperature-dependent measurements, the energetic parameters were derived, i.e. thermodynamic ?H (o) and ?S (o) for ES formation, and kinetic ?H ( ? ) and ?S ( ? ) for ES activation, while from the pressure-dependent measurements, the binding ?V (b) and activation ?V(#)(cat) volumes were determined. The thermodynamic and activation parameters obtained are discussed in terms of the current proposals for the mechanism of the urease reaction, and they are found to support the mechanism proposed by Benini et al. (Structure 7:205-216; 1999), in which the Ni-Ni bridging hydroxide--not the terminal hydroxide--is the nucleophile in the catalytic reaction. PMID:22890689

Krajewska, Barbara; van Eldik, Rudi; Brindell, Ma?gorzata

2012-08-14

294

Ectomycorrhizal fungal succession coincides with shifts in organic nitrogen availability and canopy closure in post-wildfire jack pine forests.  

PubMed

Successional changes in belowground ectomycorrhizal fungal (EMF) communities have been observed with increasing forest stand age; however, mechanisms behind this change remain unclear. It has been hypothesized that declines of inorganic nitrogen (N) and increases of organic N influence changes in EMF taxa over forest development. In a post-wildfire chronosequence of six jack pine (Pinus banksiana) stands ranging in age from 5 to 56 years, we investigated EMF community composition and compared shifts in taxa with detailed soluble inorganic and organic N data. Taxa were identified by internal transcribed spacer rDNA sequencing, and changes in community composition evaluated with non-metric multi-dimensional scaling (NMDS). Dissimilarities in the community data were tested for correlations with N variables. We observed a successional shift along NMDS axis 1 from such taxa as Suillus brevipes and Thelephora terrestris in sites age 5 and 11 to species of Cortinarius and Russula, among others, in the four older sites. This change was positively correlated with soluble organic N (SON) (r(2) = 0.902, P = 0.033) and free amino-acid N (r(2) = 0.945, P = 0.021), but not inorganic N. Overall, our results show a successional shift of EMF communities occurring between stand initiation and canopy closure without a change in species of the dominant plant-host, and associated with SON and free amino-acid N in soil. It is uncertain whether EMF taxa are responding to these organic N forms directly, affecting their availability, or are ultimately responding to changes in other site variables, such as belowground productivity. PMID:23053232

LeDuc, Stephen D; Lilleskov, Erik A; Horton, Thomas R; Rothstein, David E

2012-10-04

295

Jack of all trades masters novel host plants: positive genetic correlations in specialist and generalist insect herbivores expanding their diets to novel hosts.  

PubMed

One explanation for the widespread host specialization of insect herbivores is the 'Jack of all trades-master of none' principle, which states that genotypes with high performance on one host will perform poorly on other hosts. This principle predicts that cross-host correlation in performance of genotypes will be negative. In this study, we experimentally explored cross-host correlations and performance among families in four species (two generalist and two specialist) of leaf beetles (Cephaloleia spp.) that are currently expanding their diets from native to exotic plants. All four species displayed similar responses in body size, developmental rates and mortality rates to experimentally controlled diets. When raised on novel hosts, body size of larvae, pupae and adults were reduced. Development times were longer, and larval mortality was higher on novel hosts. Genotype × host-plant interactions were not detected for most traits. All significant cross-host correlations were positive. These results indicate very different ecological and evolutionary dynamics than those predicted by the 'Jack of all trades-master of none' principle. PMID:22022877

García-Robledo, Carlos; Horvitz, C C

2011-10-24

296

Geohydrologic study of the Michigan Basin for the applicability of Jack W. McIntyre`s patented process for simultaneous gas recovery and water disposal in production wells  

SciTech Connect

Geraghty & Miller, Inc. of Midland, Texas conducted a geohydrologic study of the Michigan Basin to evaluate the applicability of Jack McIntyre`s patented process for gas recovery and water disposal in production wells. A review of available publications was conducted to identify, (1) natural gas reservoirs which generate large quantities of gas and water, and (2) underground injection zones for produced water. Research efforts were focused on unconventional natural gas formations. The Antrim Shale is a Devonian gas shale which produces gas and large quantities of water. Total 1992 production from 2,626 wells was 74,209,916 Mcf of gas and 25,795,334 bbl of water. The Middle Devonian Dundee Limestone is a major injection zone for produced water. ``Waterless completion`` wells have been completed in the Antrim Shale for gas recovery and in the Dundee Limestone for water disposal. Jack McIntyre`s patented process has potential application for the recovery of gas from the Antrim Shale and simultaneous injection of produced water into the Dundee Limestone.

Maryn, S.

1994-03-01

297

Jack of all trades masters novel host plants: positive genetic correlations in specialist and generalist insect herbivores expanding their diets to novel hosts  

PubMed Central

One explanation for the widespread host specialization of insect herbivores is the “Jack of all trades-master of none” principle, which states that genotypes with high performance on one host will perform poorly on other hosts. This principle predicts that cross-host correlation in performance of genotypes will be negative. In this study we experimentally explored cross-host correlations and performance among families in four species (two generalist and two specialist) of leaf beetles (Cephaloleia spp.) that are currently expanding their diets from native to exotic plants. All four species displayed similar responses in body size, developmental rates and mortality rates to experimentally controlled diets. When raised on novel hosts, body size of larvae, pupae and adults were reduced. Development times were longer and larval mortality was higher on novel hosts. Genotype × host plant interactions were not detected for most traits. All significant cross-host correlations were positive. These results indicate very different ecological and evolutionary dynamics than those predicted by the “Jack of all trades-master of none” principle.

GARCIA-ROBLEDO, CARLOS; HORVITZ, CAROL C.

2011-01-01

298

Geohydrological feasibility study of the Black Warrior Basin for the potential applicability of Jack W. McIntyre`s patented process  

SciTech Connect

Geraghty & Miller, Inc. of Midland, Texas conducted geological and hydrological feasibility studies of the potential applicability of Jack W. Mclntyre`s patented process for the recovery of natural gas from coalbed/sand formations in the Black Warrior Basin of Mississippi and Alabama through literature surveys. Methane gas from coalbeds in the Black Warrior Basin is confined to the coal fields of northern Alabama. Produced water from degasification of coalbeds is currently disposed by surface discharge. Treatment prior to discharge consists of short-term storage and in-stream dilution. Mr. Mclntyre`s process appears to be applicable to the Black Warrior Basin and could provide an environmentally sound alternative for produced water production.

Reed, P.D.

1994-03-01

299

Jack bean ?-mannosidase digestion profile of hybrid-type N-glycans: Effect of reaction pH on substrate preference  

Microsoft Academic Search

Jack bean ?-mannosidase (JBM) is a well-studied plant vacuolar ?-mannosidase, and is widely used as a tool for the enzymatic analysis of sugar chains of glycoproteins. In this study, the JBM digestion profile of hybrid-type N-glycans was examined using pyridylamino (PA-) sugar chains. The digestion efficiencies of the PA-labeled hybrid-type N-glycans Man?1,6(Man?1,3)Man?1,6(GlcNAc?1,2Man?1,3)Man?1,4GlcNAc?1,4GlcNAc-PA (GNM5-PA) and Man?1,6(Man?1,3)Man?1,6(Gal?1,4GlcNAc?1,2Man?1,3)Man?1,4GlcNAc?1,4GlcNAc-PA (GalGNM5-PA) were significantly lower than

Koji Dohi; Junko Isoyama-Tanaka; Ryo Misaki; Kazuhito Fujiyama

2011-01-01

300

Tracing the provenance and recrystallization processes of the Earth's oldest detritus at Mt. Narryer and Jack Hills, Western Australia: An in situ Sm–Nd isotopic study of monazite  

Microsoft Academic Search

Mount Narryer and Jack Hills metasedimentary rocks in the Narryer Gneiss Complex of the Yilgarn Craton, Western Australia, contain zircons with ages up to 4.4Ga, the oldest known crustal materials on Earth, and monazites up to 3.6Ga. In this study, we have investigated 147Sm–143Nd systematics of detrital and metamorphic monazites from these metasedimentary rocks using laser ablation-multicollector-inductively coupled plasma mass

Tsuyoshi Iizuka; Oliver Nebel; Malcolm T. McCulloch

2011-01-01

301

Crystal structure of the first plant urease from jack bean: 83 years of journey from its first crystal to molecular structure.  

PubMed

Urease, a nickel-dependent metalloenzyme, is synthesized by plants, some bacteria, and fungi. It catalyzes the hydrolysis of urea into ammonia and carbon dioxide. Although the amino acid sequences of plant and bacterial ureases are closely related, some biological activities differ significantly. Plant ureases but not bacterial ureases possess insecticidal properties independent of its ureolytic activity. To date, the structural information is available only for bacterial ureases although the jack bean urease (Canavalia ensiformis; JBU), the best-studied plant urease, was the first enzyme to be crystallized in 1926. To better understand the biological properties of plant ureases including the mechanism of insecticidal activity, we initiated the structural studies on some of them. Here, we report the crystal structure of JBU, the first plant urease structure, at 2.05 A resolution. The active-site architecture of JBU is similar to that of bacterial ureases containing a bi-nickel center. JBU has a bound phosphate and covalently modified residue (Cys592) by beta-mercaptoethanol at its active site, and the concomitant binding of multiple inhibitors (phosphate and beta-mercaptoethanol) is not observed so far in bacterial ureases. By correlating the structural information of JBU with the available biophysical and biochemical data on insecticidal properties of plant ureases, we hypothesize that the amphipathic beta-hairpin located in the entomotoxic peptide region of plant ureases might form a membrane insertion beta-barrel as found in beta-pore-forming toxins. PMID:20471401

Balasubramanian, Anuradha; Ponnuraj, Karthe

2010-05-13

302

Geohydrologic feasibility study of the Powder River Basin for the potential application of a production process patented by Jack W. McIntyre  

SciTech Connect

Geraghty & Miller, Inc. of Midland, Texas conducted geologic and hydrologic feasibility studies of the potential applicability of a patented (US Patent Office No. 4,766,957) process developed by Jack W. McIntyre for the recovery of natural gas from coalbed/sand formations in the Powder River Basin. General research, based on a review of published literature from both private and public sources, indicates that the shallow, thick subbituminous coal seams found in the Powder River Basin exhibit significant potential for the application of this patented process. These coal deposits can be characterized, on the basis of established coalbed methane production, as being highly water productive. The desorption and economic recovery of coalbed methane, widely believed to be biogenic in origin, from these low-grade deposits will require the subsequent dewatering of these geologic formations. The patented process, developed by Mr. McIntyre and described in the compendium of this study, may offer a cost-effective means of methane recovery and downhole disposal of produced groundwaters.

Kvasnicka, D.E.

1993-08-01

303

Fatty acid synthase-catalyzed de novo fatty acid biosynthesis: from anabolic-energy-storage pathway in normal tissues to jack-of-all-trades in cancer cells.  

PubMed

In 1994, Kuhajda and colleagues unambiguously identified the oncogenic antigen-519, a prognostic molecule found in breast cancer patients with markedly worsened prognosis, as fatty acid synthase (FAS),the key enzyme for the de novo fatty acid biosynthesis. It now appears that human carcinomas and their pre-neoplastic lesions constitutively over express FAS and undergo significant endogenous fatty acid biosynthesis. Moreover, FAS blockade specifically induces apoptotic cancer cell death and prolongs survival of cancer xenograft hosts. Therefore, FAS signaling seems to play a central role in the maintenance of the malignant phenotype by enhancing cancer cell survival and proliferation. This review documents the rapidly changing perspectives on the function of FAS in cancer biology. First, we describe molecular mechanism by which aberrant transduction cascades driven by oncogenic changes subvert the down-regulatory effects of dietary fatty acids, resulting in tumor-associated FAS insensitivity to nutritional signals. Second, we speculate von the putative function that hypoxia can play as the epigenetic factor that triggers and maintains FAS overexpression in cancer cells by inducing changes in gene expression and in metabolism for survival. Third, we explore the role that FAS exhibits in cancer evolution by specifically regulating cancer-related proteins such as Her-2/neu oncogene and estrogen receptor. Finally, we reveal previously unrecognized functions of FAS on the response of cancer cells to chemo-,endocrine-,and immuno therapies. These findings, all together, should ultimately enhance our understanding of how FAS-dependent endogenous fatty acid metabolism, once considered a minor anabolic-energy-storage pathway in normal cells, has become a jack-of-all-trades in cancer cells. PMID:15577743

Menendez, Javier A; Lupu, Ruth

304

Influence of 2,5-dichloro-1,4-benzoquinone on jack bean urease activity. Inhibitory effect, total reducing capacity and DPPH radical scavenging activity.  

PubMed

Inhibition of jack bean activity by 2,5-dichloro-1,4-benzoquinone (DCBQ) was studied in phosphate buffer, pH 7.0. It was found that DCBQ acted as a strong, time and concentration dependent inactivator of urease. Under the experimental conditions obeyed the terms of pseudo-first-order reaction, urease was totally inactivated. Application of Wilson-Kitz method proved that the urease-DCBQ interaction followed a simple bimolecular process and the presence of intermediate complex was undetectable. The determined second order rate constant of the inactivation was 0.053 (?M min)(-1). Thiols such as l-cysteine, glutathione and dithiothreitol (DTT) protected urease from inhibition by DCBQ but DCBQ-modified urease did not regain its activity after DTT application. The thiol protective studies indicated an essential role of urease thiol(s) in the inhibition. The irreversibility of the inactivation showed that the process was a result of a direct modification of urease thiol(s) by DCBQ (DCBQ chlorine(s) substitution). The decomposition of DCBQ in aqueous solution at natural light exposure was monitored by visible spectrophotometry, determination of the total reducing capacity (Folin-Ciocalteu method) and DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging ability. The DCBQ conversion resulted in a decrease of the inhibition power and was well correlated with the increase of the total reducing capacity and DPPH scavenging ability. These findings were attributed to DCBQ transformation by photolysis and the hydrolysis effect was found to be negligible. PMID:22175050

Kot, Miros?awa; Olech, Zofia

2011-12-15

305

Geohydrologic feasibility study of the Northern and Central Appalachian basin areas for the potential application of a production process patented by Jack W. McIntyre  

SciTech Connect

Geraghty & Miller, Inc. of Midland, Texas conducted geologic and hydrologic feasibility studies of the potential applicability of a patented (US Patent Office No. 4,766,957) process developed by Jack W. McIntyre for the recovery of natural gas from coalbed/sand formations in the Northern and Central Appalachian basin areas. General research, based on a review of published literature from both public and private sources, indicates that the generally thin, but numerous coalbeds found in the greater Appalachian Basin area do exhibit some potential for the application of this patented process. Estimates of total gas reserves in-place (Gas Research Institute, July 1991) for coalbeds in the Central and Northern Appalachian Basin areas are 5 trillion cubic feet (TCF) and 61 TCF respectively. Produced waters associated with coal deposits in the greater Appalachian Basin area can be characterized on the basis of established but limited production of coalbed methane. Central Appalachian coals generally produce small quantities of water (less than 50 barrels of water per day for the average producing well) which is high in total dissolved solids (TDS), greater than 30,000 parts per million (ppM). The chemical quality of water produced from these coal seams represents a significant disposal challenge to the operators of methane-producing wells in the Central Appalachian Basin. By contrast, water associated with the production of coalbed methane in the Northern Appalachian Basin is generally fair to good quality, and daily production volumes are low. However, the relatively slow desorption of methane gas from Northern Appalachian coals may result in a greater net volume of produced water over the economic life of the well. The well operator must respond to long-term disposal needs.

Kvasnicka, D.

1994-03-01

306

Kinetics of jack bean urease inhibition by 2,3-dichloro-1,4-naphthoquinone. Elucidation of the mechanism: redox cycling and sulfhydryl arylation.  

PubMed

The inhibition of jack bean urease by 2,3-dichloro-1,4-naphthoquinone (DCNQ) was studied at ambient temperature in 20 mM phosphate buffer, pH 7.8. The process was investigated by incubation procedure in the absence of substrate. It was found that DCNQ acted as a time- and concentration-dependent inactivator of urease. The time course of the reaction displayed a biphasic mode. Each phase followed a pseudo-first-order kinetics, however the inactivation rate at the first phase was significantly faster than at the next one. The biphasity indicated the complex mechanism of DCNQ action on urease. Quinones action on proteins has been elucidated as at least two processes: direct arylation of essential protein thiols and/or indirect oxidation of essential thiols by reactive oxygen species (ROS) realising during quinone reduction to semiquinones. The next evidence of the studied mechanism was provided by the reactivation experiment that showed the participation of reversible and irreversible processes in the inactivation. The application of dithiothreitol (DTT) into DCNQ blocked-urease solution resulted in an effective enzyme activity regain which quickly returned to 70 +/- 10%. The irreversible inactivation of urease was attributed to DCNQ arylation of thiol residues in the protein. On the other hand, it was assumed that the reversible inactivation was a result of the action of ROS such as H(2)O(2). Presence of H(2)O(2) in the incubation system was proved by an experiment with the use of catalase. The enzyme by the elimination of H(2)O(2) decreased DCNQ inactivating influence on urease. The comparison of participation of the fast and slow phase in the inactivation with the percentage of the process reversibility was assumed that the fast period was a result of the arylation mechanism while the slow phase was related to the oxidative influence of H(2)O(2). PMID:19621983

Zaborska, Wies?awa; Kot, Miros?awa; Bala, Agnieszka

2009-10-01

307

Application of GNSS-RTK derived topographical maps for rapid environmental monitoring: a case study of Jack Finnery Lake (Perth, Australia).  

PubMed

In environmental monitoring, environmental impact assessments and environmental audits, topographical maps play an essential role in providing a means by which the locations of sampling sites may be selected, in assisting with the interpretation of physical features, and in indicating the impact or potential impact on an area due to changes in the system being monitored (e.g., spatially changing features such as wetlands). Global Navigation Satellite Systems (GNSS) are hereby presented as a rapid method for monitoring spatial changes to support environmental monitoring decisions and policies. To validate the GNSS-based method, a comparison is made of results from a small-scale topographic survey using radio-based real-time kinematic GNSS (GNSS-RTK) and total station survey methods at Jack Finnery Lake, Perth, Australia. The accuracies achieved by the total station in this study were 2 cm horizontally and 6 cm vertically, while the GNSS-RTK also achieved an accuracy of 2 cm horizontally, but only 28 cm vertically. While the GNSS-RTK measurements were less accurate in the height component compared to those from the total station method, it is still capable of achieving accuracies sufficient for a topographic map at a scale of 1:1,750 that could support environmental monitoring tasks such as identifying spatial changes in small water bodies or wetlands. The time taken to perform the survey using GNSS-RTK, however, was much shorter compared to the total station method, thereby making it quite suitable for monitoring spatial changes within an environmental context, e.g., dynamic mining activities that require rapid surveys and the updating of the monitored data at regular intervals. PMID:21136293

Schloderer, Glen; Bingham, Matthew; Awange, Joseph L; Fleming, Kevin M

2010-12-07

308

An official ATS proceedings: asthma in the workplace: the Third Jack Pepys Workshop on Asthma in the Workplace: answered and unanswered questions.  

PubMed

The Third Jack Pepys Workshop on Asthma in the Workplace held in Montreal, Canada in May 2007 focused on emerging data, including progress over the previous three years touching on questions identified at a previous Workshop (2004). The format, based on that used in previous workshops, consisted primarily of short, thematic, structured slide presentations followed by extensive, open-ended discussion periods. The key summary content of the workshops discussions has been distilled for this account. (Expanded details of the prepared presentations in PowerPoint format can be found at: www.asthma-workplace.com.) The topics reflect an expanded scope of interest including consideration of: (1) work-related asthma (WRA), subsuming both occupational asthma (OA) and work-exacerbated asthma (WEA); although the latter condition is commoner than OA, discussion mainly focused on OA because the corpus of scientific literature is larger; (2) other related occupational airway pathologic processes, beyond WRA, including rhinitis and eosinophilic bronchitis, with focus on various methods that improve objective confirmation of these conditions; (3) the psycho-socioeconomic impact of WRA with presentation of questionnaires that assess disability due to OA; (4) development of a world-wide perspective on work-related airway disease, including the situation in countries with emerging economies where the frequency of WRA is likely similar to or even greater than that in developed countries. The overarching conclusion was that WRA and related airway conditions are underrecognized and underdiagnosed both in developed and developing countries, with a great many aspects related to personal and environmental risk, exposure, mechanisms, and assessment of impairment/disability remaining to explore to better inform primary, secondary, and tertiary disease prevention. PMID:19675344

Tarlo, Susan M; Malo, Jean-Luc

2009-08-01

309

X-ray absorption spectroscopic evidence for binding of the competitive inhibitor 2-mercaptoethanol to the nickel sites of Jack bean urease. A new Ni-Ni interaction in the inhibited enzyme  

SciTech Connect

The enzyme Jack bean urease has been identified as the first nickel-containing metalloenzyme to catalyze the hydrolysis of urea to carbon dioxide and ammonia. Competitive inhibitors such as 2-mercaptoethanol (2-ME) have been shown to dramatically affect the ground-state electronic properties of the urease Ni(II) ions. Results of preliminary structural investigations using x-ray absorption spectroscopy of the nickel salts of urease in its native and 2-ME bound forms are presented. The binding of 2-ME to Ni(II) through the thiolate sulfur is confirmed by the results of this study. 17 refs., 2 figs., 2 tabs.

Clark, P.A.; Wilcox, D.E. (Dartmouth College, Hanover, NH (USA)); Scott, R.A. (Univ. of Georgia, Athens (USA))

1990-02-21

310

The Course that Jack Built.  

ERIC Educational Resources Information Center

The author describes an engineering and architecture course for junior high school students. It is a nonmathematical approach to understanding why buildings and bridges stand up and, basically, covers the same content as that of an architecture course he offers to Columbia University graduate students. (Author/KC)

Fiske, Edward B.

1979-01-01

311

Jack: Java applet correctness kit  

Microsoft Academic Search

Abstract: The paper presents a solution to improve the applet quality byallowing proof on Java CardTMannotated applets. It presents the chosenannotation language: JML that allows to formally specify each method and togive properties on fields. The innovative part of the paper is the presentation ofthe tools developed in the Gemplus Software Research Labs which allowsproving the annotation by translating them

L. Burdy; A. Requet

2002-01-01

312

Establishment of alpha-cellulose extraction method and its application using tropical tree sungkai (Peronema canescens Jack) for reliable paleoclimate reconstruction in tropical areas  

NASA Astrophysics Data System (ADS)

Tree rings are widely used to reconstruct paleoclimate in terrestrial areas in terms of high spatial / temporal resolution and great sensitivity for climatic factors (e.g., precipitation, relative humidity, air temperature, etc.). However, this is not necessarily the case for Asian tropical trees because growth rings of many tropical trees are ambiguous and also because trees that grow in dense rainforest are affected by other environmental factors, such as the existence of neighboring trees. Oxygen isotopic ratio of tree-ring alpha-cellulose can be a proxy of paleoclimate reconstruction in areas where little correlation is found between tree-ring widths and climatic factors [Waterhouse et al., 2002; Rinne et al., 2005]. Thus, continuous, alternative meteorological data in Asian tropical areas that drive the global climate system can also be provided by measuring the oxygen isotopic ratio of alpha-cellulose of tropical trees. Previous works showed that tree-ring components (mainly cellulose, hemicelluloses and lignin) have different isotopic ratios [Wilson and Grinsted, 1977; Loader et al., 2003]. In addition, the isotopic ratios of untreated samples show weaker correlations with climate signals than that of chemically treated samples [Rinne et al., 2005]. For these reasons, it is necessary to effectively extract only alpha-cellulose for reliable paleoclimatic reconstruction. Furtermore, an optimum processing time can be different between species and hence it needs to be determined for each. However, there is no report that aims at estimation of an optimum processing time using tropical hardwoods. Sungkai (Peronema canescens Jack) is one of tropical hardwood species that formed distinct growth rings and has high sensitivity species for environment [Ohashi et al., 1992]. In this study, the optimum alpha-cellulose extraction time was estimated for sungkai (SungkaiNAN7, collected at Serang, West Java, Indonesia) by measuring oxygen and carbon isotopic ratios, ATR-IR and dry weight change. The procedure of chemical treatment has three steps (1. organic solvent extraction using acetone, 2. bleaching reaction using acidified sodium chlorite solution and 3. alkali reaction using 17% sodium hydroxide solution), which is based on Nakatsuka et al. (2004) who modified the procedure of Loader et al. (1997). The first criteria to determine reaction time at individual stages are that oxygen and carbon isotopic ratios become constant within analytical errors. The additional criteria are: (a) relative amount of lignin ? 0, (b) percentage of dry weight after the third stage ? 48.6% [Martawijaya et al., 2005] and (c) disappearance of lignin and hemicellulose peaks in the ATR-IR absorption bands. As a result, reaction time at individual stages for sungkai was estimated as 30 min for organic solvent extraction (stage 1), 6 hrs (1 hr × 6) for bleaching reaction (stage 2) and 2.25 hrs (45 min × 3) for alkali reaction (stage 3). The established procedure was applied to time series analysis of carbon and oxygen isotopes of two sungkai disks (SungkaiNAN7 and SungkaiNAN8) in order to evaluate their validity as paleoclimatic proxies.

Harada, M.; Watanabe, Y.; Nakatsuka, T.; Tazuru, S.; Horikawa, Y.; Sugiyama, J.; Tsuda, T.; Tagami, T.

2012-04-01

313

Tracing the provenance and recrystallization processes of the Earth's oldest detritus at Mt. Narryer and Jack Hills, Western Australia: An in situ Sm-Nd isotopic study of monazite  

NASA Astrophysics Data System (ADS)

Mount Narryer and Jack Hills metasedimentary rocks in the Narryer Gneiss Complex of the Yilgarn Craton, Western Australia, contain zircons with ages up to 4.4 Ga, the oldest known crustal materials on Earth, and monazites up to 3.6 Ga. In this study, we have investigated 147Sm- 143Nd systematics of detrital and metamorphic monazites from these metasedimentary rocks using laser ablation-multicollector-inductively coupled plasma mass spectrometry (LA-MC-ICPMS). All detrital monazites have negative initial ?Nd(t) values, indicating that their parental magmas formed by remelting of older crustal materials. A comparison between the initial ?Nd(t) values of the detrital monazites and granitoids in the Narryer Gneiss Complex indicates that the Mt. Narryer and Jack Hills sediments were partly derived from the most isotopically enriched surrounding granitoids with ages of ca. 3.6 and 3.3 Ga. The metamorphic monazites generally have lower initial ?Nd(t) values when compared to the detrital monazites. However, the detrital and metamorphic monazites show similar distributions of ?Nd(t) at the ages of sediment deposition (3.28 Ga for Mt. Narryer and 3.05 Ga for Jack Hills). In addition, multiple analyses on single monazite grains having core-rim structures reveal that the cores and the recrystallized rims had identical Nd isotopic compositions at the time of recrystallization. These findings indicate that older monazites are source of light rare earth elements for younger metamorphic monazite formation and, therefore, that monazite can inherit its primary Sm-Nd isotopic signature during the recrystallization processes. We calculated the Nd model ages for all analyzed monazites to estimate crustal residence time of their source materials. We find that no igneous monazites older than 4.0 Ga were recrystallized to form the monazites. This implies that the lack of Hadean monazites is not due to recrystallization of ancient monazites during later metamorphism, but due to high-Ca compositions of the parental magmas of Hadean detritus, which prevent growth of magmatic monazite.

Iizuka, Tsuyoshi; Nebel, Oliver; McCulloch, Malcolm T.

2011-08-01

314

Canthin-6-one and beta-carboline alkaloids from Eurycoma harmandiana.  

PubMed

Two alkaloids, canthin-6-one 9-O-beta-glucopyranoside and 7-hydroxy-beta-carboline 1-propionic acid, were isolated from the roots of Eurcoma harmandiana together with the five known canthin-6-one alkaloids, 9-hydroxycanthin-6-one, 9-methoxycanthin-6-one, 9,10-dimethoxycanthin-6-one, canthin-6-one and canthin-6-one N-oxide, and the two known beta-carboline alkaloids, beta-carboline 1-propionic acid and 7-methoxy-beta-carboline 1-propionic acid. Their structures were based on analyses of spectroscopic data. PMID:11249106

Kanchanapoom, T; Kasai, R; Chumsri, P; Hiraga, Y; Yamasaki, K

2001-02-01

315

Flavonoids of Murraya peniculata (Linn.) Jack  

Microsoft Academic Search

The Sri Lankan Mcrrraya panicuhra has bmil oxanlined for flavones and found to contain 3'. 4', 5, 5'. 7.8 - hexamethoxyflavone and 3, 3'. 4', 5, 5'. 7, 8 - heptamethoxyflavone. 1. Iutroduction Murraya is a genus of the family Rutaceae native to south-east Asia. Murraya koenigii Spreng (Sinh. Icarapincha) has been investigated intensively in recent years and as many

E. B. DE SILVA; Sri Latzka; M. MAHENDRAW; M R. C. JENNINGS

316

SEPHIROT: SCENARIO for CREATION AUTOMATICALLY from DIGITS AVERAGED-PROBABILITY Newcomb-Benford Log-Law: Inflation, BosonS, a Maxwell-Boltzmann Big-Bang Fireball, FermionS, HDE, HDM, CMB; UTTER-SIMPLICITY PURPOSELY SANS ANYthing!!!: It's a Jack-in-the-Box Univers: A Consciousness? EMET/TRUTH!!!  

NASA Astrophysics Data System (ADS)

Siegel[http://fqxi.org/community/forum/topic/1553]: TEN-DIGITS[0,,9]; PROBABILITY AVERAGE LOG-Law SCALE-INVARIANCE; Utter-Simplicity: ``Complexity'' (Versus ``Complicatedness''); Zipf-law/ Hyperbolicity/ Inevitability (Archimedes), vs, Pareto-law, SCENARIO AUTOMATICALLY CREATES a UNIVERSE: inflation, a big-bang, bosons(E) ->Mellin-(c2)-tranform->fermions(m), hidden-dark-energy(HDE), hidden-dark-matter(HDM), cosmic-microwave-background(CMB), supersymmetry(SUSY) PURPOSELY SANS ANY: theories, models, mechanisms, processes, parameters, assumptions,WHATSOEVER: It's a'' Jack-in-the-Box'' Universe!!! ONLY VIA: Bose-Euler[(1732)] sum=product over-reals R-Riemann[Monats. Akad.,(1859)] sum=product over-complexs)-Bernoulli-Kummer-Newcomb[Am. J. Math. 4(1), 39(1881) THE discovery of the QUANTUM!!!]-Planck(1901)]-Einstein(1905)]-Sommerfeld-Poincare[Calcul des Probabilités, 313 (1912)]-Weyl[Goett. Nach.(1914); Math. Ann. 77, 313(1916)]-(Bose(1924)-Einstein(1925)]-VS.

Carl-Ludwig Siegel, Edward

2013-03-01

317

SEPHIROT: Scenario for Universe-Creation AUTOMATICALLY from Digits On-Average Euler-Bernoulli-Kummer-Riemann-Newcomb-Poincare-Weyl-Benford-Kac-Raimi-Hill-Antonoff-Siegel ``Digit-Physics'' Logarithm-Law: ``It's a Jack-in-the-Box Universe'': EMET/TRUTH!!!  

NASA Astrophysics Data System (ADS)

SEPHIROT: Siegel[http://fqxi.org/community/forum/topic/1553]: Ten-[0->9]-Digits; Average Log-Law SCALE-Invariance; Utter-Simplicity: ``Complexity'' (vs. ``Complicatedness''); Zipf-law/Hyperbolicity/ Inevitability SCENARIO AUTOMATICALLY CREATES & EVOLVES a UNIVERSE: inflation, a big-bang, bosons(E)->Mellin-(c2)-tranform->fermions(m), hidden-dark-energy(HDE), hidden-dark-matter (HDM), cosmic-microwave-background(CMB), supersymmetry(SUSY), PURPOSELY NO: theories,models,mechanisms,processes, parameters,assumptions,WHATSOEVER: It's a ``Jack-in-the-Box'' Universe!!!: ONLY VIA: Newcomb [Am.J.Math.4(1),39(1881)]QUANTUM-discovery!!!-Benford-Siegel-Antonoff[AMS.Joint-Mtg.(02)-Abs.#973-60-124!!!] inversion to ONLY BEQS with d=0 BEC: ``Digit-Physics''!; Log fixed-point invariance(s): [base=units=SCALE] of digits classic (not classical!) average [CAUSING] log statistical-correlations =log(1+1/d), with physics-crucial d=0 BEC singularity/pole, permits SEPHIROT!!!: ``digits are quanta are bosons because bosons are and always were digits!!!'': Digits = Bosons with d=0 BEC(!!!) & expansion to Zipf-law Hyperbolicity INEVITABILITY CMB!

Siegel, Edward Carl-Ludwig; Young, Frederic; Wignall, Janis

2013-04-01

318

Antiproliferative activity of Vietnamese medicinal plants.  

PubMed

Methanol, methanol-water (1:1) and water extracts were prepared from seventy-seven Vietnamese medicinal plants and tested for their antiproliferative activities against human HT-1080 fibrosarcoma cells. Among them, fifteen extracts including seven methanol extracts of Caesalpinia sappan, Catharanthus roseus, Coscinium fenestratum, Eurycoma longifolia, Hydnophytum formicarum and Streptocaulon juventas (collected at two areas), six methanol-water (1:1) extracts of Cae. sappan, Cat. roseus, Co. fenestratum, H. formicarum and S. juventas (at two areas), and two water extracts of Cae. sappan and S. juventas exhibited antiproliferative activities in a concentration-dependent manner. Their antiproliferative activities against human cervix HeLa adenocarcinoma, human lung A549 adenocarcinoma, murine colon 26-L5 carcinoma, murine Lewis lung carcinoma (LLC) and murine B16-BL6 melanoma cells were then examined. Co. fenestratum showed selective activity against lung carcinoma and/or lung metastatic cell lines, A549, LLC and B16-BL6, while H. formicarum and S. juventas showed selective activity against human tumor cell lines, HeLa and A549. Characteristic morphological change and DNA fragmentation indicated the antiproliferative activity to be due to the induction of apoptosis. PMID:12081142

Ueda, Jun-ya; Tezuka, Yasuhiro; Banskota, Arjun Hari; Le Tran, Quan; Tran, Qui Kim; Harimaya, Yuko; Saiki, Ikuo; Kadota, Shigetoshi

2002-06-01

319

Effect of Tongkat Ali on stress hormones and psychological mood state in moderately stressed subjects  

PubMed Central

Background Eurycoma longifolia is a medicinal plant commonly called tongkat ali (TA) and “Malaysian ginseng.” TA roots are a traditional “anti-aging” remedy and modern supplements are intended to improve libido, energy, sports performance and weight loss. Previous studies have shown properly-standardized TA to stimulate release of free testosterone, improve sex drive, reduce fatigue, and improve well-being. Methods We assessed stress hormones and mood state in 63 subjects (32 men and 31 women) screened for moderate stress and supplemented with a standardized hot-water extract of TA root (TA) or Placebo (PL) for 4?weeks. Analysis of variance (ANOVA) with significance set at p?

2013-01-01

320

Revisiting Jack Goody to Rethink Determinisms in Literacy Studies  

ERIC Educational Resources Information Center

|This article revisits Goody's arguments about literacy's influence on social arrangements, culture, cognition, economics, and other domains of existence. Whereas some of his arguments tend toward technological determinism (i.e., literacy causes change in the world), other of his arguments construe literacy as a force that shapes and is shaped by…

Collin, Ross

2013-01-01

321

DARPP-32, Jack of All Trades... Master of Which?  

PubMed Central

DARPP-32 (PPP1R1B) was discovered as a substrate of cAMP-dependent protein kinase (PKA) enriched in dopamine-innervated brain areas. It is one of three related, PKA-regulated inhibitors of protein phosphatase-1 (PP1). These inhibitors seem to have appeared in early vertebrate ancestors, possibly Gnathostomes. DARPP-32 has additional important biochemical properties including inhibition of PKA when phosphorylated by Cdk5 and regulation by casein kinases 1 and 2. It is highly enriched in specific neuronal populations, especially striatal medium-size spiny neurons. As PP1 inhibitor DARPP-32 amplifies and/or mediates many actions of PKA at the plasma membrane and in the cytoplasm, with a broad spectrum of potential targets and functions. DARPP-32 also undergoes a continuous and tightly regulated cytonuclear shuttling. This trafficking is controlled by phosphorylation of Ser-97, which is necessary for nuclear export. When phosphorylated on Thr-34 and dephosphorylated on Ser-97, DARPP-32 can inhibit PP1 in the nucleus and modulate signaling pathways involved in the regulation of chromatin response. Recent work with multiple transgenic and knockout mutant mice has allowed the dissection of DARPP-32 function in striato-nigral and striato-pallidal neurons. It is implicated in the action of therapeutic and abused psychoactive drugs, in prefrontal cortex function, and in sexual behavior. However, the contribution of DARPP-32 in human behavior remains poorly understood. Post-mortem studies in humans suggest possible alterations of DARPP-32 levels in schizophrenia and bipolar disorder. Genetic studies have revealed a polymorphism with possible association with psychological and psychopathological traits. In addition, a short isoform of DARPP-32, t-DARPP, plays a role in cancer, indicating additional signaling properties. Thus, DARPP-32 is a non-essential but tightly regulated signaling hub molecule which may improve the general performance of the neuronal circuits in which it is expressed.

Yger, Marion; Girault, Jean-Antoine

2011-01-01

322

Intravenous magnesium for cardiac arrhythmias: jack of all trades.  

PubMed

Intravenous magnesium has been used to prevent and treat many different types of cardiac arrhythmia. It has diverse electrophysiological actions on the conduction system of the heart; including prolonging sinus node recovery time, and reducing automaticity, atrioventricular nodal conduction, antegrade and retrograde conduction over an accessory pathway, and His-ventricular conduction. Intravenous magnesium can also homogenise transmural ventricular repolarisation. Because of its unique and diverse electrophysiological actions, intravenous magnesium has been reported to be useful in preventing atrial fibrillation and ventricular arrhythmias after cardiac and thoracic surgery; in reducing the ventricular response in acute onset atrial fibrillation, including for patients with Wolff-Parkinson-White syndrome; in the treatment of digoxin induced supraventricular and ventricular arrhythmias, multifocal atrial tachycardia, and polymorphic ventricular tachycardia or ventricular fibrillation from drug overdoses. Intravenous magnesium is, however, not useful in monomorphic ventricular tachycardia and shock-resistant ventricular fibrillation. Large randomised controlled studies are needed to confirm whether intravenous magnesium can improve patient centre outcomes in different cardiac arrhythmias. PMID:18557136

Ho, Kwok-Ming

2008-03-01

323

EGGS AND LARVAE OF ANCHOVY, JACK MACKEREL, AND PACIFIC MACKEREL  

Microsoft Academic Search

ANCHOVY The eggs arid larvae of anchovy are pelagic. They float passively in the upper layers of the ocean, sel- dom deeper than 300 feet. Anchovy eggs differ from the eggs of most pelagic fishes in that they are ovoid rather than spherical. The eggs and early larval stages of the northern anchovy were first described by Bolin (1936). Ac-

ELBERT H. AHLSTROM

324

In vitro flowering of orange jessamine ( Murraya paniculata (L.) Jack)  

Microsoft Academic Search

Branch internodes ofMurraya paniculata flowered in vitro on half-strength MT medium containing 5% sucrose supplemented with cytokinins. The cytokinins only induced vegetative shoots from the epicotyl of seedlings. The highest percentage of flowering (76.7% of the explants) was achieved from branch internodes of flowering plants close to the apex, on half-strength MT medium containing 5% sucrose and 0.001 mg l1

H. B. Jumin; N. Nito

1996-01-01

325

Listening to Jack: GE's change conversations with shareholders  

Microsoft Academic Search

How organizations communicate with shareholders during times of great uncertainty, such as during transformational change, is a relatively neglected area within the change management literature. We use the concept of “change conversation” and speech act theory to analyze GE's letters to shareholders 1980-1999. We found five consistent change conversations through which GE's management sought to reassure shareholders and reduce their

Ian Palmer; Adelaide Wilcox King; Dianne Kelleher

2004-01-01

326

All Work and No PLA Makes Jack a Dull Boy  

ERIC Educational Resources Information Center

|In this article, the author presents an assortment of approaches--building blocks--commonly used in Prior Learning Assessment (PLA) practices (this list is certainly not comprehensive): (1) course matching (comparing course requirements to a student's prior learning experiences); (2) student's ability to articulate learning gained from…

Popova-Gonci, Viktoria

2009-01-01

327

Remembering Pearl Harbor: You don't know Jack  

Microsoft Academic Search

As dusk takes its last breath, the sun settles beneath a line of crooked pitch pine trees, guarding each side of a darkened two-lane road. With the impending darkness, whitetail deer emerge from the woods and clop across Route 530 in search of grazing areas while battalions of bloodsucking greenhead flies plunge between the scant number of vehicles on the

Craig Causer

2008-01-01

328

PLANT SCIENCE: Hexokinase, Jack-of-All-Trades  

NSDL National Science Digital Library

Access to the article is free, however registration and sign-in are required. Certain enzymes have dual functions having both catalytic and signaling activities. To this group can now be added plant hexokinases, as Frommer and colleagues discuss in their Perspective. Elegant work with Arabidopsis mutants reveals that plant hexokinases not only phosphorylate glucose but also sense glucose levels and participate in the glucose signaling pathway.

Wolf B. Frommer (Universitat Tübingen;Department of Plant Physiology, Zentrum für Molekularbiologie der Pflanzen); Waltraud X. Schulze (University of Southern Denmark;Protein Interaction Laboratory, Department of Biochemistry and Molecular Biology); Sylvie Lalonde (Universitat Tübingen;Department of Plant Physiology, Zentrum für Molekularbiologie der Pflanzen)

2003-04-11

329

Aharon Nkwodimmah: A Jack of All Trades (and Careers)  

ERIC Educational Resources Information Center

|Meet 19-year-old barber, artist and soon-to-be college freshman Aharon Nkwodimmah. Nkwodimmah began honing his barbering skills at the age of 12 on his younger brother's head, without permission, of course: that didn't turn out well for either of them. But by the age of 15, Nkwodimmah was known for his "lines." And for that reason, there was…

Blandford, Ayoka

2012-01-01

330

Malate. Jack of all trades or master of a few?  

PubMed

The dicarboxylic acid malate has long been thought to play important roles in plant physiology. In addition to being a major photosynthate in C4 and CAM plants and an intermediate of the tricarboxylic acid cycle it has been proposed to play essential roles in pH regulation and important roles in pathogen response, as a component of the root exudates and as a regulatory osmolyte affecting stomatal function. Recent years have seen the cloning and functional analysis of a wide range of enzymes and transporters associated with malate metabolism. Here we attempt to provide a synthesis of research in this field as well as re-evaluating the role of this metabolite in mediating guard cell function. PMID:19473680

Fernie, Alisdair R; Martinoia, Enrico

2009-05-25

331

Plant-based medicines for anxiety disorders, Part 1: a review of preclinical studies.  

PubMed

Research in the area of herbal psychopharmacology has revealed a variety of promising medicines that may provide benefit in the treatment of general anxiety and specific anxiety disorders. However, a comprehensive review of plant-based anxiolytics has been absent to date. This article (part 1) reviews herbal medicines for which only preclinical investigations for anxiolytic activity have been performed. In part 2, we review herbal medicines for which there have been clinical investigations for anxiolytic activity. An open-ended, language-restricted (English) search of MEDLINE (PubMed), CINAHL, Scopus and the Cochrane Library databases was conducted (up to 28 October 2012) using specific search criteria to identify herbal medicines that have been investigated for anxiolytic activity. This search of the literature revealed 1,525 papers, from which 53 herbal medicines were included in the full review (having at least one study using the whole plant extract). Of these plants, 21 had human clinical trial evidence (reviewed in part 2), with another 32 having solely preclinical studies (reviewed here in part 1). Preclinical evidence of anxiolytic activity (without human clinical trials) was found for Albizia julibrissin, Sonchus oleraceus, Uncaria rhynchophylla, Stachys lavandulifolia, Cecropia glazioui, Magnolia spp., Eschscholzia californica, Erythrina spp., Annona spp., Rubus brasiliensis, Apocynum venetum, Nauclea latifolia, Equisetum arvense, Tilia spp., Securidaca longepedunculata, Achillea millefolium, Leea indica, Juncus effusus, Coriandrum sativum, Eurycoma longifolia, Turnera diffusa, Euphorbia hirta, Justicia spp., Crocus sativus, Aloysia polystachya, Albies pindrow, Casimiroa edulis, Davilla rugosa, Gastrodia elata, Sphaerathus indicus, Zizyphus jujuba and Panax ginseng. Common mechanisms of action for the majority of botanicals reviewed primarily involve GABA, either via direct receptor binding or ionic channel or cell membrane modulation; GABA transaminase or glutamic acid decarboxylase inhibition; a range of monoaminergic effects; and potential cannabinoid receptor modulation. Future research should focus on conducting human clinical trials on the plants reviewed with promising anxiolytic activity. PMID:23436255

Sarris, Jerome; McIntyre, Erica; Camfield, David A

2013-03-01

332

Stein's Method, Jack Measure, and the Metropolis Algorithm Running head: Stein's Method and Jack Measure Written 11\\/13\\/03; Referee suggestions implemented on 6\\/30\\/04  

Microsoft Academic Search

The one parameter family of Jackmeasures on partitions is an important discrete analog of Dyson'sensembles of random matrix theory. Except for special values of ? = 1\\/2,1,2 which have group theoretic interpretations, the Jackmeasure has been difficult if not intractable to analyze. This paper proves a central limit theorem (with an error term) for Jackmeasure which works for arbitrary values

Jason Fulman

333

Talking Coins and Thinking Smoke-Jacks: Satirizing Materialism in Gildon and Sterne  

Microsoft Academic Search

Both Charles Gildon and Laurence Sterne, authors associated with libertine ideas early in their careers, later used their fiction to distance themselves from materialist philosophy, creating influential characters in the process. Gildon satirized materialism by bringing coins to life in his object narrative The Golden Spy, while Sterne's method was to reduce the humanity of characters such as Uncle Toby

Scott Nowka

2010-01-01

334

Trying to Touch “A Touchy Case”: Discussion of a Clinical Case by Jack Drescher  

Microsoft Academic Search

Looking for a different perspective that might deepen this otherwise good psychoanalytic process, the author focuses on the remarkable family history of multiple losses that seem not to have been mourned by anyone, including the patient. Like his family, he formed a defensive armor to deaden his feelings and to avoid grief and fear of further loss. It is suggested

Ralph Roughton

2009-01-01

335

Jack of all trades, master of some? On the role of phenotypic plasticity in plant invasions  

Microsoft Academic Search

Invasion biologists often suggest that phenotypic plasticity plays an important role in successful plant invasions. Assuming that plasticity enhances ecological niche breadth and therefore confers a fitness advantage, recent studies have posed two main hypotheses: (1) invasive species are more plastic than non-invasive or native ones; (2) populations in the introduced range of an invasive species have evolved greater plasticity

Christina L. Richards; Oliver Bossdorf; Norris Z. Muth; Jessica Gurevitch; M. Piglucci

2006-01-01

336

Why does Jack, and not Jill, break his crown? Sex disparity in brain tumors  

PubMed Central

It is often reported that brain tumors occur more frequently in males, and that males suffer a worse outcome from brain tumors than females. If correct, these observations suggest that sex plays a fundamental role in brain tumor biology. The following review of the literature regarding primary and metastatic brain tumors, reveals that brain tumors do occur more frequently in males compared to females regardless of age, tumor histology, or region of the world. Sexually dimorphic mechanisms that might control tumor cell biology, as well as immune and brain microenvironmental responses to cancer, are explored as the basis for this sex disparity. Elucidating the mechanisms by which sex chromosomes and sex hormones impact on brain tumorigenesis and progression will advance our understanding of basic cancer biology and is likely to be essential for optimizing the care of brain tumor patients.

2012-01-01

337

Flat-jack tests and parameter identification for diagnostic analysis of dams  

Microsoft Academic Search

In many existing concrete dams chemical-physical processes, such as the alkali-aggregate reaction (AAR) [1] and\\/or past extreme loadings, have given rise to reductions of local stiffness and strength during decades of service life.\\u000a Moreover, concrete expansion due to AAR and possible geological motions in the foundation may have generated self-equilibrated\\u000a stress states, additional to stresses caused by external loadings.\\u000a \\u000a In

R. Fedele; G. Maier; L. Marazza

338

FGFs: Neurodevelopment's Jack-of-all-Trades - How Do They Do it?  

PubMed Central

From neurulation to postnatal processes, the requirements for FGF signaling in many aspects of neural precursor cell biology have been well documented. However, identifying a requirement for FGFs in a particular neurogenic process provides only an initial and superficial understanding of what FGF signaling is doing. How FGFs specify cell types in one instance, yet promote cell survival, proliferation, migration, or differentiation in other instances remains largely unknown and is key to understanding how they function. This review describes what we have learned primarily from in vivo vertebrate studies about the roles of FGF signaling in neurulation, anterior–posterior patterning of the neural plate, brain patterning from local signaling centers, and finally neocortex development as an example of continued roles for FGFs within the same brain area. The potential explanations for the diverse functions of FGFs through differential interactions with cell intrinsic and extrinsic factors is then discussed with an emphasis on how little we know about the modulation of FGF signaling in vivo. A clearer picture of the mechanisms involved is nevertheless essential to understand the behavior of neural precursor cells and to potentially guide their fates for therapeutic purposes.

Hebert, Jean M.

2011-01-01

339

Royal Canadian mounted spy: The secret life of John Leopold\\/Jack Esselwein  

Microsoft Academic Search

John Leopold spied his way into becoming the most famous member of the Royal Canadian Mounted Police in the intewar period. Too short, and from the wrong ethnic background to have become a Mountie under normal circumstances, the immigrant Leopold was accepted specifically because of his eastern European origins. He infiltrated the fledgling Communist Party of Canada and after is

Steve Hewitt

2000-01-01

340

The anonymous police blogger, the newspaper and the unmasking of Night Jack  

Microsoft Academic Search

The English High Court recently refused to grant an injunction to restrain The Times newspaper from publishing the identity of an anonymous political blogger (The author of a blog v Times Newspapers Limited [2009] EWHC 1358 (QB)). The facts of the case were unusual: there was no clearly unlawful behaviour by the blogger, who was also a police officer highly

Kate Brimsted

2009-01-01

341

Temporal Variation of the Mating System in a Natural Population of Jack Pine  

PubMed Central

Mating system parameters of a northern conifer, Pinus banksiana Lamb., were estimated from allozyme polymorphisms. Seeds analyzed were obtained from serotinous cones of 30 individuals and represented four independent fertilizations in 1975, 1976, 1977 and 1978. Results indicated that a mixed mating system model, with a mean effective outcrossing rate of 88 ± 0.047%, described the mating system of this stand. However, there was an approximately linear increase in the apparent selfing rate from the oldest (1975) to the newest (1978) crop. Two hypotheses could account for these observations. First, there may have been changes in the mating system during the 4-yr period, but linearity of the differences observed in this study may have been due to chance. These changes were, however, independent of the variability of the observed pollen pool. This indicated that they were not a result of different proportions of outcrossed zygotes directly observed. Second, there could have been a more or less constant amount of selfing, followed by a differential loss of viability of selfed and outcrossed zygotes during the period of storage in the cones. Under this hypothesis, selfed zygotes are at a selective disadvantage relative to outcrossed zygotes. No differences in the mating system could be demonstrated among the three crown strata of this stand. There was significant interlocus heterogeneity in the filial generation genotypic distributions and in the estimated outcrossing rates, reflecting the complex nature of forces that can affect single-locus estimates. There was evidence of some additional inbreeding, possibly due to family structures in the stand; however, this was a minor component of the total inbreeding.

Cheliak, W. M.; Dancik, B. P.; Morgan, K.; Yeh, F. C. H.; Strobeck, C.

1985-01-01

342

Teaching Students to Identify Research Variables: Jack and Jill Can Help  

ERIC Educational Resources Information Center

|One of the goals for an undergraduate Communication Research Methods class is that students be able to read quantitative communication research from scholarly journals, identify the variables being studied, and understand the methodology employed. This sounds simple enough, but most students come into the class having never even seen a scholarly…

Katt, James

2007-01-01

343

Optimal Strategy Hand-rank Table for Jacks or Better, Double Bonus, and Joker Wild  

Microsoft Academic Search

Video poker is a casino game based on five-card draw poker played on a computerized console. Video poker allows players an opportunity for some control of the random events that determine whether they win or lose. This means that making the right play can increase a player's return in the long run. For that reason, optimal strategy hand-rank tables for

John Jungtae Kim

2012-01-01

344

Healthcare Inspection: Alleged Inadequate Airway Management at Jack C. Montgomery VA Medical Center, Muskogee, Oklahoma.  

National Technical Information Service (NTIS)

The patient was an obese male in his 60s who presented to the facility's emergency department in May 2010 complaining of worsening shortness of breath. He presented with a low-grade fever and an oxygen saturation of 85 percent on room air. Per the patient...

2012-01-01

345

Chemotypical variation in Vanilla planifolia Jack. (Orchidaceae) from the Puebla-Veracruz Totonacapan region  

Microsoft Academic Search

One of the threats in the diversity loss of the primary gene pool of Vanilla planifolia is the lack of information on existing level of polymorphism in cultivated germplasm, and the different expressions of this\\u000a polymorphism. For this reason, it is proposed to study the chemical polymorphism of the four phytochemicals that define the\\u000a vanilla aroma quality in fruits (vanillin,

Víctor Manuel Salazar-Rojas; B. Edgar Herrera-Cabrera; Adriana Delgado-Alvarado; Marcos Soto-Hernández; Fernando Castillo-González; Mario Cobos-Peralta

346

High-frequency in vitro flowering of Murraya paniculata (L.) Jack  

Microsoft Academic Search

Shoots of orange jessamine (Murraya paniculata) a member of the Rutaceae family flowered in vitro on half-strength MT basal medium containing 5% sucrose. The highest percentage\\u000a (95%) of flowering was obtained on medium supplemented with 0.1 mg l–1 N6-benzyladenine and pH 5.7. A “floral gradient” was detected among the stem internodes and root segments derived from seedlings,\\u000a with shoot and

H. B. Jumin; M. Ahmad

1999-01-01

347

On the Modelling of Foundations for Jack-up Units on Sand  

Microsoft Academic Search

This paper was selected for presentation by the OTC Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper, as presented, have not been reviewed by the Offshore Technology Conference and are subject to correction by the author(s). The material, as presented, does not necessarily reflect any position of the Offshore Technology

M. J. Cassidy; G. T. Houlsby

1999-01-01

348

Are You Willing to Have Your Students Join Ralph, Jack, and Piggy?  

ERIC Educational Resources Information Center

|High school teacher Cara M. Arver walks teachers through her experience of setting up a virtual world to augment students' reading of "Lord of the Flies." Students interact as additional characters, discuss and solve problems based on the circumstances of the story, and complete classroom assignments within a virtual environment.|

Arver, Cara M.

2007-01-01

349

Jack the Giant Tamer: Poetry Writing in the Treatment of Paranoid Schizophrenia.  

ERIC Educational Resources Information Center

Provides a brief case report on the use of poetry writing in the treatment of a patient with a diagnosis of paranoid schizophrenia. Notes that, after 23 sessions in which the patient said nothing, the patient brought a poem for the therapist to read at the 24 session. (SR)

Silver, Constance

1993-01-01

350

Jack-of-all-trades master of all? Snake vertebrae have a generalist inner organization  

NASA Astrophysics Data System (ADS)

Snakes are a very speciose group of squamates that adapted to various habitats and ecological niches. Their ecological diversity is of particular interest and functional demands associated with their various styles of locomotion are expected to result in anatomical specializations. In order to explore the potential adaptation of snakes to their environment we here analyze variation in vertebral structure at the microanatomical level in species with different locomotor adaptations. Vertebrae, being a major element of the snake body, are expected to display adaptations to the physical constraints associated with the different locomotor modes and environments. Our results revealed a rather homogenous vertebral microanatomy in contrast to what has been observed for other squamates and amniotes more generally. We here suggest that the near-absence of microanatomical specializations in snake vertebrae might be correlated to their rather homogeneous overall morphology and reduced range of morphological diversity, as compared to lizards. Thus, snakes appear to retain a generalist inner morphology that allows them to move efficiently in different environments. Only a few ecologically highly specialized taxa appear to display some microanatomical specializations that remain to be studied in greater detail.

Houssaye, Alexandra; Boistel, Renaud; Böhme, Wolfgang; Herrel, Anthony

2013-10-01

351

The role of coagulation in chronic inflammatory disorders: a jack of all trades.  

PubMed

Chronic inflammatory disorders constitute a heterogeneous group of complex and multifactorial diseases, which are often associated with increased cardiovascular morbidity and mortality, independent of the established cardiovascular risk factors. In keeping with this observation, hypercoagulability is frequently observed in patients suffering from atherosclerosis, chronic obstructive pulmonary disease and rheumatoid arthritis although the physiological significance of activated coagulation remained elusive. However, the identification of protease activated receptors (PAR) seem to provide a link between coagulation activation and disease progression as their activation by coagulation factors triggers a broad range of signaling pathways relevant for chronic inflammatory disorders. In experimental animal models, anticoagulation and/or genetic ablation of PAR signaling affords protection against the perpetuation of atherosclerosis, chronic obstructive pulmonary disease and rheumatoid arthritis. It is thus tempting to speculate that targeting the coagulation-PAR axis might have clinical relevance in the setting of chronic inflammatory disorders. In the current review, we discuss the current knowledge on coagulation activation in inflammatory disorders, we discuss the relationship between atherosclerosis, chronic obstructive pulmonary disease and rheumatoid arthritis and we review the current knowledge on PAR signaling in these disorders. PMID:21222644

Borensztajn, Keren S; von der Thüsen, Jan H; Spek, C Arnold

2011-01-01

352

21 CFR 133.153 - Monterey cheese and monterey jack cheese.  

Code of Federal Regulations, 2013 CFR

...bacterial culture. One or more of the clotting enzymes specified in paragraph (b)(2) of...alone or in combination. (2) Clotting enzymes. Rennet and/or other clotting enzymes of animal, plant, or microbial origin....

2013-04-01

353

No Jack Kennedy: Mitt Romney's “Faith in America” Speech and the Changing Religious-Political Environment  

Microsoft Academic Search

In December of 2007, Republican presidential hopeful Mitt Romney traveled to Texas to give an address on religion and politics. The speech was heralded by many as Romney's “JFK moment.” This study explores the campaign religion speeches of Kennedy and Romney by considering various issues concerning context, audience, and content of the two speeches. Guiding this analysis is Roderick Hart's

Brian T. Kaylor

2011-01-01

354

Stephen Jay Gould, Jack Sepkoski, and the ‘Quantitative Revolution’ in American Paleobiology  

Microsoft Academic Search

During the 1970s, a “revolution” in American paleobiology took place. It came about in part because a group of mostly young, ambitious paleontologists adapted many of the quantitative methodologies and techniques developed in fields including biology and ecology over the previous several decades to their own discipline. Stephen Jay Gould, who was then just beginning his career, joined others in

David Sepkoski

2005-01-01

355

Creep and Sliding in Clays Slopes: Mutual Effects of Interlayer Swelling and Ice Jacking.  

National Technical Information Service (NTIS)

In swelling clays, the frost heave results not only from ice lens formation but includes swell heave as well. During the growth of the lenses, the clay desiccates gradually and promotes further water adsorption through the unfrozen hygroscopic water layer...

K. A. Czurda J. F. Wagner

1984-01-01

356

Creep and Sliding in Clay Slopes: Mutual Effects of Interlayer Swelling and Ice Jacking.  

National Technical Information Service (NTIS)

Laboratory tests, partially confirmed by field data, demonstrate that the swelling of freshwater clay exhibits small clay swell expansion (depending upon the initial water content) and additional ice expansion due to ice lense formation. Ice lense formati...

K. A. Czurda

1984-01-01

357

Jack Hills, evidence of more very old detrital zircons in Western Australia  

Microsoft Academic Search

The age of the Earth's oldest crustal minerals sets a time-limit on the earliest preservation of buoyant solid crust. The oldest mineral ages reported so far are ~4,180 Myr for detrital zircons from quartzites at Mount Narryer1, in the Yilgarn Block, Western Australia. The oldest-known intact rocks, as distinct from individual minerals, are substantially younger; they formed ~3,813-Myr ago2 in

W. Compston; R. T. Pidgeon

1986-01-01

358

Jack the Ripper in South Africa? Charles van Onselen's The Fox and the Flies  

Microsoft Academic Search

The Fox and the Flies is supplied with the context not only of Charles van Onselen's oeuvre, devoted to labourers and peasants and members of the marginalised underclass, but of work on prostitution and ‘white slavery’ in South Africa and elsewhere in the world. The ‘Fox’, Joseph Silver, an international criminal and white-slavery trafficker, may possibly have been – as

Paul S. Landau

2009-01-01

359

Favorite Demonstrations: Simple "Jack-in-the-Box" Demonstrations for Physical Science Courses.  

ERIC Educational Resources Information Center

|The demonstrations presented in this article relate to everyday life, address interdisciplinary aspects, and have implications for the life sciences. Topics of the demonstrations are electricity calculations, astronomy, electrolysis of water, ester synthesis from butyric acid and pentanol, catalysis, and minerals. (PR)|

Cole, Theodor C. H.

1993-01-01

360

Dissociation and unfolding of jack bean urease studied by fluorescence emission spectroscopy  

Microsoft Academic Search

Thermal and chemical denaturation of urease has been studied by fluorescence spectroscopy. For thermal denaturation, a change in structure was indicated by a change in the wavelength of maximal intensity, ?max. The fluorescence peak position shifted from 330 nm to 335 nm upon heating urease from room temperature to 75° C, with a Tm corresponding to 72.4° C. The thermal

S. Omar; M. Beauregard

1995-01-01

361

DNA sequence motif: a jack of all trades for ChIP-Seq data.  

PubMed

Nowadays, chromatin immunoprecipitation followed by next-generation sequencing, often referred to as ChIP-Seq, has become an industry standard to study a landscape of DNA-protein interactions in vivo. ChIP-Seq captures highly specific protein-DNA interactions, such as transcription factors (TFs) bound to appropriate binding sites, and sparse patterns formed by different histone marks. In this review, we focus on DNA sequence analysis methods adequate for TF ChIP-Seq data. We discuss numerous tasks starting from basic DNA motif finding and motif discovery as is, further applied to explore various features of experimental data. We show how sequence analysis of ChIP-Seq data derives novel biological knowledge on multiple levels, from individual transcription factor binding sites to genome segments operating as regulatory modules. Finally, we provide an overview of existing software in the field. PMID:23790213

Kulakovskiy, Ivan V; Makeev, Vsevolod J

2013-01-01

362

76 FR 60900 - Jack A. Danton, D.O.; Decision and Order  

Federal Register 2010, 2011, 2012, 2013

...Respondent that he had stiffness in his neck. He stated that he did not receive a physical...things like the shoulder or parts of the neck.'' [Tr. 459]. 94. The MRI also...potent analgesic-like effects in the brain. [Tr. 492]. 115. After four...

2011-09-30

363

Favorite Demonstrations: Simple "Jack-in-the-Box" Demonstrations for Physical Science Courses.  

ERIC Educational Resources Information Center

The demonstrations presented in this article relate to everyday life, address interdisciplinary aspects, and have implications for the life sciences. Topics of the demonstrations are electricity calculations, astronomy, electrolysis of water, ester synthesis from butyric acid and pentanol, catalysis, and minerals. (PR)

Cole, Theodor C. H.

1993-01-01

364

Simulations of pre- and post-harvest soil temperature, soil moisture, and snowpack for jack pine: comparison with field observations  

Microsoft Academic Search

Quantifying temporal changes in soil temperature and moisture conditions is an important part of characterizing pre- and post-disturbance conditions that influence the health, productivity, and sustainability of forest ecosystems. In this paper, we present an experimental case study that was used to evaluate the ability of the forest hydrology model ForHyM2 to simulate field-observed changes in root-zone soil moisture and

J. S Bhatti; R. L Fleming; N. W Foster; F.-R Meng; C. P. A Bourque; P. A Arp

2000-01-01

365

“Where Is Jack Bauer When You Need Him?” The Uses of Television Drama in Mediated Political Discourse  

Microsoft Academic Search

This article explores the myriad uses of television drama in mediated political discourse using the case study of 24, Fox's counterterrorism drama. It examines references to 24 in articles and columns of nine major daily newspapers, magazines, and political Web sites from 2001 to 2007 and demonstrates how the show was invoked to support and express different political opinions, how

Keren Tenenboim-Weinblatt

2009-01-01

366

75 FR 32357 - Gallatin National Forest; Montana; Jack Rabbit to Big Sky Meadow Village 161 kV Transmission Line...  

Federal Register 2010, 2011, 2012, 2013

...Valley and Big Sky, MT are among the fastest growing areas within NorthWestern Energy's...resources (wildlife, special status plants and animals, invasive weeds, snag habitat...2d 1016, 1022 (9th Cir. 1986) and Wisconsin Heritages, Inc. v. Harris, 490...

2010-06-08

367

Automatic heuristic generation with genetic programming: evolving a jack-of-all-trades or a master of one  

Microsoft Academic Search

It is possible to argue that online bin packing heuristics should be evaluated by using metrics based on their per- formance over the set of all bin packing problems, such as the worst case or average case performance. However, this method of assessing a heuristic would only be relevant to a user who employs the heuristic over a set of

Edmund K. Burke; Matthew R. Hyde; Graham Kendall; John Woodward

2007-01-01

368

Political tyranny and the master-slave paradigm in selected sea tales of Herman Melville and Jack London  

Microsoft Academic Search

This thesis re-evaluates the radical humanism and political consciousness of Melville and London, as well as the question of Melville's influence on London's writings. My study also considers to what extent a re-evaluation of these authors is possible given the prevailing ideologies that inform the ways we persist in reading their texts. I argue that though there has been a

Peter Relph Saiz

2003-01-01

369

Replacement of wildfire by whole-tree harvesting in jack pine forests: Effects on soil fertility and tree nutrition  

Microsoft Academic Search

Large areas of northern coniferous forests once naturally maintained by stand-replacing wildfires have shifted to an anthropogenic disturbance regime of clearcut harvesting followed by natural or artificial regeneration, with unknown consequences for soil biogeochemical processes. We used a comparative approach to investigate the effects of whole-tree harvesting (WTH) vs. stand-replacing wildfire (WF) on soil C and nutrient availability, and nutrition

David E. Rothstein; Susan E. Spaulding

2010-01-01

370

Seasonal variation of energy and water vapor exchange rates above and below a boreal jack pine forest canopy  

Microsoft Academic Search

Fluxes of energy and water vapor over boreal forest stands are expected to vary during the growing season due to temporal variations in solar energy, soil and air temperature, soil moisture, photosynthetic capacity, and leaf area. To investigate this hypothesis, we measured fluxes of energy balance components (solar, latent and sensible heat, and soil and canopy heat storage) over and

Dennis D. Baldocchi; Christoph A. Vogel; Brad Hall

1997-01-01

371

`Jack be Nimble, Jill be Quick': HR Capability and Organizational Agility in the New Zealand Public and Private Sectors  

Microsoft Academic Search

This study uses Dyer and Shafer's organizational agility framework to analyze and compare the contribution of human resource strategies and practices to organizational capability in twelve private sector and three public sector organizations. Similarities are found in public and private sector HR practices and priorities, particularly with regard to some aspects of work design, performance management and remuneration, and communication.

Pat Walsh; Jane Bryson; Zsuzsanna Lonti

2002-01-01

372

The Quest to Reprogram Cultural Software: A Hermeneutical Response to Jack Balkin's Theory of Ideology and Critique  

Microsoft Academic Search

Critical theory has lost the self-assurance that defined the heady days of Marxist economics and Freudian psychoanalysis. In his famous debate with Hans-Georg Gadamer thirty years ago, Jürgen Habermas argued that critical theory was a necessary corrective to the quiescence and conventionalism that followed from Gadamer's hermeneutic perspective. As the 1960s unfolded, the second generation of the Frankfurt School appeared

Mootz Francis J. III

2000-01-01

373

Jack Hoza - Five Nonmanual Modifiers That Mitigate Requests and Rejections in American Sign Language - Sign Language Studies 8:3  

Microsoft Academic Search

A notable difference between signed and spoken languages is the use of nonmanual linguistic signals that co-occur with the production of signs. These nonmanual signals involve primarily the face and upper torso and are an important feature of American Sign Language (ASL). They include grammatical markers that indicate syntactic categories such as yes-no\\/questions and wh-word questions, as well as nonmanual

Jack Hoza

2008-01-01

374

The effect of rack\\/rib plate on the stress concentration factors in jack-up chords  

Microsoft Academic Search

It is well known that stiffener plates can have a large effect on the stress concentration factors found at the intersection of welded tubular joints. The strong relationship between the fatigue life of these tubular joints and the stresses experienced at the intersection make the accurate knowledge of the SCFs in this region of critical importance. Previous stress analysis work

P. T. Myers; F. P. Brennan; W. D. Dover

2001-01-01

375

PhysicoChemical and Viscosity Studies in Some Seed Oils from Wild and Cultivated Plants  

Microsoft Academic Search

Physico-chemical properties of Madhuca longifolia L, Sterculia foetida L and Hibiscus cannabinus L seed oils were in- vestigated. M. longifolia has significantly high oil content. These determined parameters have been compared with the literature and discussed. The temperature dependence of density and absolute viscosity in these oils has been deter- mined over the temperature range from 303 K to 343

Ramchandra D. Gaikwad; Paramjyothi Swamy

376

Viability of alien and native seed banks after slash and burn: Effects of soil moisture, depth of burial and fuel load  

Microsoft Academic Search

Invasion by alien woody species is a major threat to biodiversity and ecosystem function in the Fynbos and Grassland Biomes of South Africa, and riparian areas are particularly affected. Large stands of the Australian Acacia longifolia have been cleared in catchments in the grassy fynbos of the Eastern Cape. After clearing mature stands of A. longifolia, the dead material is

M. Behenna; S. Vetter; S. Fourie

2008-01-01

377

Cargo Handling System.  

National Technical Information Service (NTIS)

This patent application discloses a cargo handling system having three major components: (1) a plurality of loading jack assemblies, (2) a plurality of stationary jack assemblies, and (3) a tow bar. The loading jack assemblies are of a novel construction ...

M. S. Traister

1984-01-01

378

29 CFR 1926.452 - Additional requirements applicable to specific types of scaffolds.  

Code of Federal Regulations, 2010 CFR

...loaded in accordance with such design. (j) Pump jack scaffolds. (1) Pump jack brackets, braces, and accessories shall be fabricated from metal plates and angles. Each pump jack bracket shall have two positive gripping...

2010-07-01

379

78 FR 36444 - Snapper-Grouper Fishery of the South Atlantic; 2013 Commercial Accountability Measure and Closure...  

Federal Register 2010, 2011, 2012, 2013

...South Atlantic Lesser Amberjack, Almaco Jack, and Banded Rudderfish Complex AGENCY...sector for the lesser amberjack, almaco jack, and banded rudderfish complex in the...landings for the lesser amberjack, almaco jack, and banded rudderfish complex, as...

2013-06-18

380

29 CFR 1910.241 - Definitions.  

Code of Federal Regulations, 2013 CFR

...Wheel Peripheral grinding wheel having a diameter, thickness and hole. (c) [Reserved] (d) Jack terms â(1) Jack. A jack is an appliance for lifting and lowering or moving horizontally a load by application of a pushing...

2013-07-01

381

7 CFR 58.446 - Quality requirements.  

Code of Federal Regulations, 2013 CFR

...Cheese. (c) Monterey (Monterey Jack ) cheese. The quality requirements for Monterey (Monterey Jack) cheese shall be in accordance with the...Standards for Grades of Monterey (Monterey Jack) Cheese. (d) Swiss cheese,...

2013-01-01

382

76 FR 8372 - Commercial Fishing Safety Advisory Committee; Meeting  

Federal Register 2010, 2011, 2012, 2013

...requests to make oral presentations to Mr. Jack Kemerer, Assistant to the Designated Federal...for submitting comments. E-mail: jack.a.kemerer@uscg.mil. Include the...202) 372-1917. Mail: Mr. Jack Kemerer, COMDT (CG-54221),...

2011-02-14

383

29 CFR 1926.452 - Additional requirements applicable to specific types of scaffolds.  

Code of Federal Regulations, 2010 CFR

...loaded in accordance with such design. (j) Pump jack scaffolds. (1) Pump jack brackets, braces, and accessories shall be fabricated from metal plates and angles. Each pump jack bracket shall have two positive gripping...

2009-07-01

384

75 FR 59170 - Airworthiness Directives; British Aerospace Regional Aircraft Models Jetstream Series 3101 and...  

Federal Register 2010, 2011, 2012, 2013

...identified that failure of the undercarriage jack mounting shaft assembly can occur. This...identified that failure of the undercarriage jack mounting shaft assembly can occur...identified that failure of the undercarriage jack mounting shaft assembly can occur....

2010-09-27

385

Crystal Structure of the First Plant Urease from Jack Bean: 83 Years of Journey from Its First Crystal to Molecular Structure  

Microsoft Academic Search

Urease, a nickel-dependent metalloenzyme, is synthesized by plants, some bacteria, and fungi. It catalyzes the hydrolysis of urea into ammonia and carbon dioxide. Although the amino acid sequences of plant and bacterial ureases are closely related, some biological activities differ significantly. Plant ureases but not bacterial ureases possess insecticidal properties independent of its ureolytic activity. To date, the structural information

Anuradha Balasubramanian; Karthe Ponnuraj

2010-01-01

386

Biochemical constrains limit the potential of the photochemical reflectance index as a predictor of effective quantum efficiency of photosynthesis during the winter spring transition in Jack pine seedlings  

Microsoft Academic Search

Leaf reflectance spectral measurements are an emerging non-invasive technique that can be used to derive the photochemical reflectance index (PRI) to assess the physiological state of plants from leaf to ecosystem level. Changes in PRI are associated with changes in the xanthophyll cycle activity and provide an estimate of changes in the effective photochemical quantum efficiency (FII) during the growing

Florian BuschA; Norman P. A. HünerA; Ingo EnsmingerA

387

CREATIVIDAD EN EL SERVICIO DE ATENCIÓN AL CLIENTE. ESTRATEGIAS BASADAS EN EL ESTUDIO DE JACK MORTON WORLDWIDE SOBRE LA APLICACIÓN DEL NEUROMARKETING MEDIANTE EL MARKETING EXPERIMENTAL  

Microsoft Academic Search

The present document contains information about the application of the Neuromarketing in the world of the businesses, mainly how it influences in the service of attention the client of the companies, since it is oriented to take care of it of more efficient way, by means of the total satisfaction of his expectations and perceptions. Also some studies that has

Pedro Espino Vargas

388

Fatality Assessment and Control Evaluation (FACE) Report for Iowa: Two Mechanics Crushed to Death When Tow Truck Falls from Jack Stand.  

National Technical Information Service (NTIS)

During the spring of 1998, two male auto mechanics, ages 42 and 48, were killed while working under the back end of a tow truck. The men were doing routine repair work on the rear axle and differential of the truck. The back end of the truck was raised fr...

1999-01-01

389

A Heavy-Atom Isotope Effect and Kinetic Investigation of the Hydrolysis of Semicarbazide by Urease from Jack Bean (Canavalia ensiformis) †  

PubMed Central

A kinetic investigation of the hydrolysis of semicarbazide by urease gives a relatively flat log V/K vs. pH plot between pH 5 and 8. A log Vm vs. pH plot shows a shift of the optimum Vm toward lower pH when compared to urea. These results are explained in terms of the binding of the outer-N of the –NHNH2 group in semicarbazide to an active site residue with a relatively low pKa (?6). Heavy-atom isotope effects for both leaving groups have been determined. For the –NHNH2 side 15kobs = 1.0045, whereas for the –NH2 side 15kobs = 1.0009. This is evidence that –NHNH2 leaves prior to –NH2. Using previous data from the urease-catalyzed hydrolysis of formamide, the commitment factors for semicarbazide and urea hydrolysis are estimated as 2.7 and 1.2, respectively. The carbonyl-C isotope effect is 13kobs = 1.0357 which is consistent with the transition state occurring either during formation or breakdown of the tetrahedral intermediate.

Marlier, John F.; Fogle, Emily J.; Cleland, W.W.

2009-01-01

390

Jack of All Trades: Pleiotropy and the application of Chemically Modified Tetracycline -3 in Sepsis and the Acute Respiratory Distress Syndrome (ARDS)  

PubMed Central

Sepsis is a disease process that has humbled the medical profession for centuries with its resistance to therapy, relentless mortality, and pathophysiologic complexity. Despite 30 years of aggressive, concerted, well-resourced efforts the biomedical community has been unable to reduce the mortality of sepsis from 30%, nor the mortality of septic shock from greater than 50%. In the last decade only one new drug for sepsis has been brought to the market, drotrecogin alfa-activated (Xigris™), and the success of this drug has been limited by patient safety issues. Clearly a new agent is desperately needed. The advent of recombinant human immune modulators held promise but the outcomes of clinical trials using biologics that target single immune mediators have been disappointing. The complex pathophysiology of the systemic inflammatory response syndrome (SIRS) is self-amplifying and redundant at multiple levels. In this review we argue that perhaps pharmacologic therapy for sepsis will only be successful if it addresses this pathophysiologic complexity; the drug would have to be pleiotropic, working on many components of the inflammatory cascade at once. In this context, therapy that targets any single inflammatory mediator will not adequately address the complexity of SIRS. We propose that Chemically Modified Tetracycline-3, CMT-3 (or COL-3), a non-antimicrobial modified tetracycline with pleiotropic anti-inflammatory properties, is an excellent agent for the management of sepsis and its associated complication of the Acute Respiratory Distress Syndrome (ARDS). The purpose of this review is threefold: 1) to examine the shortcomings of current approaches to treatment of sepsis and ARDS in light of their pathophysiology, 2) to explore the application of COL-3 in ARDS and sepsis, and finally 3) to elucidate the mechanisms of COL-3 that may have potential therapeutic benefit in ARDS and sepsis.

Roy, Shreyas K.; Kendrick, Daniel; Sadowitz, Benjamin D.; Gatto, Louis; Snyder, Kathleen; Satalin, Joshua M.; Golub, Lorne M.; Nieman, Gary

2011-01-01

391

Jack of All Trades, Master of All: A Positive Association between Habitat Niche Breadth and Foraging Performance in Pit-Building Antlion Larvae  

PubMed Central

Species utilizing a wide range of resources are intuitively expected to be less efficient in exploiting each resource type compared to species which have developed an optimal phenotype for utilizing only one or a few resources. We report here the results of an empirical study whose aim was to test for a negative association between habitat niche breadth and foraging performance. As a model system to address this question, we used two highly abundant species of pit-building antlions varying in their habitat niche breadth: the habitat generalist Myrmeleon hyalinus, which inhabits a variety of soil types but occurs mainly in sandy soils, and the habitat specialist Cueta lineosa, which is restricted to light soils such as loess. Both species were able to discriminate between the two soils, with each showing a distinct and higher preference to the soil type providing higher prey capture success and characterizing its primary habitat-of-origin. As expected, only small differences in the foraging performances of the habitat generalist were evident between the two soils, while the performance of the habitat specialist was markedly reduced in the alternative sandy soil. Remarkably, in both soil types, the habitat generalist constructed pits and responded to prey faster than the habitat specialist, at least under the temperature range of this study. Furthermore, prey capture success of the habitat generalist was higher than that of the habitat specialist irrespective of the soil type or prey ant species encountered, implying a positive association between habitat niche-breadth and foraging performance. Alternatively, C. lineosa specialization to light soils does not necessarily confer upon its superiority in utilizing such habitats. We thus suggest that habitat specialization in C. lineosa is either an evolutionary dead-end, or, more likely, that this species' superiority in light soils can only be evident when considering additional niche axes.

Barkae, Erez David; Scharf, Inon; Abramsky, Zvika; Ovadia, Ofer

2012-01-01

392

IT INFLUENCES OF THE WATERING IN THE BEHAVIOR OF THREE HYBRID TENERA OF PALM OIL BOTTLE (Elaeis guineensis Jack.) Of. TWO YEARS. LA CONCORDIA, PICHINCHA 2007  

Microsoft Academic Search

Descriptores: lámina neta, emisión foliar, área foliar, estípete, corona foliar, material de siembra. SUMMARY This research as part of a long term project (12 years) related to irrigation was conducted in the Oil Palm Research Center (CIPAL) belonging to the National Association of Oil Palm Producers (ANCUPA), located in \\

Diego Hidalgo Narváez; Marcelo Calvache

393

Does the Jack of All Trades Hold the Winning Hand?: Comparing the Role of Specialized Versus General Skills in the Returns to an Agricultural Degree  

Microsoft Academic Search

This paper examines the roles of specialized versus general skills in explaining variation in the returns to an agriculture degree across majors inside and outside the agricultural industry. The focus on returns by sector of employment is motivated by the finding that most agricultural majors are employed in non-agricultural jobs.  A sample of alumni graduating from a large Midwestern Public

Georgeanne M. Artz; Kevin Kimle; Peter Orazem

2011-01-01

394

Identification of Host-Specificity Determinants in Betanodaviruses by Using Reassortants between Striped Jack Nervous Necrosis Virus and Sevenband Grouper Nervous Necrosis Virus  

Microsoft Academic Search

and the smaller genomic segment, RNA2 (1.4 kb), codes for the coat protein. Betanodaviruses have marked host specificity, although the primary structures of the viral RNAs and encoded proteins are similar among betanodaviruses. However, no mechanism underlying the host specificity has yet been reported. To evaluate viral factors that control host specificity, we first constructed a cDNA-mediated infectious RNA transcription

Tokinori Iwamoto; Yasushi Okinaka; Kazuyuki Mise; Koh-Ichiro Mori; Misao Arimoto; Tetsuro Okuno; Toshihiro Nakai

2004-01-01

395

The $19.95 Solution to Large Group Telephone Interviews with Special Speakers.  

ERIC Educational Resources Information Center

|Describes an inexpensive solution for holding large-group telephone interviews, listing the equipment needed (record control, telephone, phone line with modular jack, portable amplifier with microphone-level input jack, audio cable with jack and plug compatible with the microphone input jack on the amplifier) and providing directions for setup.…

Robinson, George H.

1998-01-01

396

Field evaluation of soybean engineered with a synthetic cry1Ac transgene for resistance to corn earworm, soybean looper, velvetbean caterpillar (Lepidoptera: Noctuidae), and lesser cornstalk borer (Lepidoptera: Pyralidae).  

PubMed

A transgenic line of the soybean 'Jack', Glycine max (L.) Merrill, expressing a synthetic cry1Ac gene from Bacillus thuringiensis variety kurstaki (Jack-Bt), was evaluated for resistance to four lepidopteran pests in the field. Jack-Bt and genotypes serving as susceptible and resistant controls were planted in field cages and artificially infested with larvae of corn earworm, Helicoverpa zea (Boddie), and velvetbean caterpillar, Anticarsia gemmatalis (Hübner), in 1996, 1997, and 1998, and also with soybean looper, Pseudoplusia includens (Walker), in 1996. Susceptible controls included Jack (1996-1998), 'Cobb' (1996), and Jack-HPH (1996). GatIR 81-296 was used as the resistant control in all 3 yr. Compared with untransformed Jack, Jack-Bt showed three to five times less defoliation from corn earworm and eight to nine times less damage from velvetbean caterpillar. Defoliation of GatIR 81-296 was intermediate between that of Jack and Jack-Bt for corn earworm, and similar to that of Jack for velveltbean caterpillar. Jack-Bt exhibited significant, but lower resistance to soybean looper. Jack-Bt also showed four times greater resistance than Jack to natural infestations of lesser cornstalk borer, Elasmopalpus lignosellus (Zeller), in conventional field plots at two locations in 1998. Data from these experiments suggest that expression of this cry1Ac construct in soybean should provide adequate levels of resistance to several lepidopteran pests under field conditions. PMID:10902306

Walker, D R; All, J N; McPherson, R M; Boerma, H R; Parrott, W A

2000-06-01

397

4. WEST SIDE WITH DOUBLE SASHED WINDOWS, FIRST FLOOR DOOR ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

4. WEST SIDE WITH DOUBLE SASHED WINDOWS, FIRST FLOOR DOOR WITH JACK ARCHES, SECOND FLOOR DOOR WITH JACK ARCHES - Jansonist Colony, Colony Store & Post Office, Main & Bishop Hill Streets, Bishop Hill, Henry County, IL

398

Loading Dolly.  

National Technical Information Service (NTIS)

A loading dolly has a loading frame adapted to be raised or lowered through horizontal movement of screw jacks which pivot mobile carriages, articulately coupled to the jacks and frame, in a generally vertical direction about the loading frame. (Author)

L. E. Fielding

1983-01-01

399

29 CFR 1926.1404 - Assembly/Disassembly-general requirements (applies to all assembly and disassembly operations).  

Code of Federal Regulations, 2013 CFR

...section. (ii) Be placed only under the outrigger or stabilizer float/pad of the jack or, where the outrigger or stabilizer is designed without a jack, under the outer bearing surface of the extended outrigger or stabilizer beam....

2013-07-01

400

RFE Page 1 for Selene peruviana, Pacific Moonfish ...  

Center for Food Safety and Applied Nutrition (CFSAN)

... RFE Page 1 for Selene peruviana, Pacific Moonfish, FDA Market Name: Jack. ... Selene peruviana Pacific Moonfish FDA Market Name: Jack. ... More results from www.fda.gov/food/foodscienceresearch/rfe

401

Record of Telephone Conversation - September 24, 2009 ...  

Center for Biologics Evaluation and Research (CBER)

... Non-FDA Participants: Jack Love. ... 1. Mon 9/21/2009 5:55 PM e-mail (Subject: update on otitis media) from Julienne Vaillancourt to Jack Love. ... More results from www.fda.gov/biologicsbloodvaccines/vaccines/approvedproducts

402

DNA Barcode Sequences for Seafood Species Identification ...  

Center for Food Safety and Applied Nutrition (CFSAN)

... DNA Barcode Sequences for Seafood Species Identification: Caranx caninus, Pacific Crevalle Jack , FDA Market Name: Jack. Sample #RFE-270. ... More results from www.fda.gov/food/foodscienceresearch/dnaseafoodidentification

403

75 FR 54176 - Notice of Application for a Recordable Disclaimer of Interest for Lands Underlying the Kuskokwim...  

Federal Register 2010, 2011, 2012, 2013

...West 7th Avenue, 13, Anchorage, Alaska 99513-7599. FOR FURTHER INFORMATION CONTACT: Jack Frost, 907-271-5531; E-mail Jack_Frost@blm.gov; or visit the BLM Recordable Disclaimer of Interest Web site at...

2010-09-03

404

50 CFR 665.101 - Definitions.  

Code of Federal Regulations, 2011 CFR

...palu-gutusiliva red snapper, silvermouth Aphareus rutilans. asoama gray snapper, jobfish Aprion virescens. sapoanae giant trevally, jack Caranx ignobilis. tafauli black trevally, jack Caranx lugubris. fausi blacktip grouper...

2011-10-01

405

50 CFR 665.401 - Definitions.  

Code of Federal Regulations, 2012 CFR

...snapper, silvermouth Aphareus rutilans. Gogunafon/aiwe gray snapper, jobfish Aprion virescens. Tarakitu/etam Giant trevally, jack Caranx ignobilis. Tarakiton attelong/orong Black trevally, jack Caranx lugubris....

2012-10-01

406

50 CFR 665.401 - Definitions.  

Code of Federal Regulations, 2011 CFR

...snapper, silvermouth Aphareus rutilans. Gogunafon/aiwe gray snapper, jobfish Aprion virescens. Tarakitu/etam Giant trevally, jack Caranx ignobilis. Tarakiton attelong/orong Black trevally, jack Caranx lugubris....

2011-10-01

407

50 CFR 665.101 - Definitions.  

Code of Federal Regulations, 2012 CFR

...palu-gutusiliva red snapper, silvermouth Aphareus rutilans. asoama gray snapper, jobfish Aprion virescens. sapoanae giant trevally, jack Caranx ignobilis. tafauli black trevally, jack Caranx lugubris. fausi blacktip grouper...

2012-10-01

408

22. Operating equipment: Hand wheel for control reversal, stick shift ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

22. Operating equipment: Hand wheel for control reversal, stick shift for jaw clutches, indicators for the turning of the bridge, and raising/lowering jacks, jaw clutches for bridge and jacks, jaw clutches for bridge and jacks. - Seven Mile Bridge, Linking Florida Keys, Marathon, Monroe County, FL

409

Love that Poem! Using Imitation to Teach Poetry  

ERIC Educational Resources Information Center

|Sharon Creech's book, "Love That Dog," is the story of a young poet named Jack, a good teacher, and a dog. Using free verse, Jack describes how he becomes a writer in dated journal entries. He is just an average kid, like so many of the kids in one's classes. But Jack has an excellent English teacher in Miss Stretchberry. She assigns freewriting…

Brannon, April

2012-01-01

410

20 CFR 416.1165 - How we deem income to you from your ineligible parent(s).  

Code of Federal Regulations, 2013 CFR

...in § 416.1166a.) Example 4. Jack, a disabled child, lives with his mother...brothers, none of whom are eligible for SSI. Jack's mother receives a private pension of...month. We allocate a total of $422 for Jack's ineligible brothers and...

2013-04-01

411

76 FR 67103 - Proposed Revision of Class D and Class E Airspace; Hawthorne, CA  

Federal Register 2010, 2011, 2012, 2013

...proposes to revise Class D and E airspace at Jack Northrop Field/Hawthorne Municipal Airport...biennial review, along with a study of the Jack Northrop Field/Hawthorne Municipal Airport...an extension to Class D surface area at Jack Northrop Field/Hawthorne Municipal...

2011-10-31

412

76 FR 44256 - Amendment of Class E Airspace; El Dorado, KS  

Federal Register 2010, 2011, 2012, 2013

...non-directional beacon (NDB) at Captain Jack Thomas/El Dorado Airport, El Dorado...reconfiguring controlled airspace at Captain Jack Thomas/El Dorado Airport (76 FR 21827...cancellation of the NDB approach at Captain Jack Thomas/ El Dorado Airport has made...

2011-07-25

413

77 FR 7525 - Revision of Class D and Class E Airspace; Hawthorne, CA  

Federal Register 2010, 2011, 2012, 2013

...revises Class D and Class E airspace at Jack Northrop Field/Hawthorne Municipal Airport...biennial review, along with a study of the Jack Northrop Field/Hawthorne Municipal Airport...an extension to Class D surface area at Jack Northrop Field/Hawthorne Municipal...

2012-02-13

414

20 CFR 404.408 - Reduction of benefits based on disability on account of receipt of certain other disability...  

Code of Federal Regulations, 2013 CFR

...family benefits first. Example 2: Jack became entitled to disability insurance...insurance benefit. By June 1977 (6/77), Jack's PIA had increased to $298.00 because...first month that offset was imposed against Jack. Since there were no other...

2013-04-01

415

27 CFR 9.197 - Clements Hills.  

Code of Federal Regulations, 2013 CFR

...intersection of the Calaveras River and Jack Tone Road, section 31 west boundary line...beginning point, proceed north 6.9 miles on Jack Tone Road to its intersection with Elliot Road in the village of Lockeford (where Jack Tone Road is known as E. Hammond...

2013-04-01

416

78 FR 65187 - Airworthiness Directives; Airbus Airplanes  

Federal Register 2010, 2011, 2012, 2013

...splines between the tie bar and the screw-jack. This AD requires repetitive detailed...splines between the tie bar and the screw-jack. The results of the technical investigations...splines between the tie bar and the screw-jack. We are issuing this AD to detect...

2013-10-31

417

27 CFR 9.200 - Mokelumne River.  

Code of Federal Regulations, 2013 CFR

...miles on Elliott Road to its intersection with Jack Tone Road in the village of Lockeford (where Jack Tone Road is known as E. Hammond Street for...then (5) Proceed south 6.7 miles on Jack Tone Road to its intersection with the...

2013-04-01

418

75 FR 27580 - Notice of Lodging of Consent Decree Under the Clean Air Act  

Federal Register 2010, 2011, 2012, 2013

...Decree'') in United States v. The Pep Boys--Manny, Moe & Jack, and Baja, Inc...Air Act (``CAA'') against The Pep Boys--Manny, Moe & Jack, and Baja, Inc...should refer to United States v. The Pep Boys--Manny, Moe & Jack, and Baja,...

2010-05-17

419

Umatilla River Basin Trap and Haul Program : Annual Report 1993  

Microsoft Academic Search

Threemile Falls Dam is the major counting and collection point for adult salmonids returning to the Umatilla River. Returning salmon and steelhead were collected at Threemile Dam from October 23, 1992 to July 14, 1993. A total of 1,913 summer steelhead; 239 adult and 64 jack fall chinook; 355 adult and 174 jack coho; and 1,205 adult and 16 jack

Brian C. Zimmerman; Bill B. Duke

1993-01-01

420

76 FR 21827 - Proposed Amendment of Class E Airspace; El Dorado, KS  

Federal Register 2010, 2011, 2012, 2013

...non-directional beacon (NDB) at Captain Jack Thomas/El Dorado Airport, El Dorado, KS...Rules (IFR) operations at Captain Jack Thomas/El Dorado Airport. DATES: 0901 UTC...instrument approach procedures at Captain Jack Thomas/El Dorado Airport, El Dorado,...

2011-04-19

421

Composition and functional properties of unprocessed and locally processed seeds from three underutilized food sources in Nigeria  

Microsoft Academic Search

Chemical and functional properties of unprocessed (raw) and locally processed seeds ofBrachystegia eurycoma, Detarium microcarpum andMucuna sloanei that affect their utilization as sources of human food were investigated. The seeds, which are underutilized food sources\\u000a in Nigeria, were subjected to local processing methods which included roasting, boiling, dehulling\\/shelling, soaking and the\\u000a changes in composition and functional properties were estimated. Chemical

S. Y. Giami; O. C. Wachuku

1997-01-01

422

C. Jack DeLoach, Research Entomologist and Lead Scientist, Saltcedar Biological Control Project Lindsey R. Milbrath, Research Entomologist, USDA-ARS, Grasslands Soil and Water Research Laboratory, Temple, TX  

Microsoft Academic Search

Biological control has successfully controlled 10 exotic, invasive weeds of rangelands and natural ecosystems in the United States since 1945, and control of oth- ers is in progress. We initiated biological control of saltcedar (Tamarix spp.) in 1987, using host-specific insect herbivores that regulate saltcedar populations in the Old World. We did a risk analysis, including the possible effects of

Allen E. Knutson; Debra Eberts; David C. Thompson; David J. Kazmer; Tom L. Dudley; Dan W. Bean; Jeff B. Knight

423

Antibiotic Resistance and Herbal Treatment of Bacterial Fish Pathogens Causing Epizootic Ulcerative Syndrome  

Microsoft Academic Search

In in vitro screenings of antibiotics against the two most commonly found opportunistic bacteria related to epizootic ulcerative syndrome of fishes—Aeromonas hydrophila (MTCC 646) and Pseudomonas fluorescens (MTCC 103)—gentamycin, ofloxacin, kanamycin, and tobramycin were effective. The antibacterial screening of plant extracts revealed that both aqueous and methanolic extract of Terminalia chebula, Polyalthia longifolia, Terminalia bellerica, and Phyllanthus emblica were sensitive

Anupam Ghosh; Bidus Kanti Das; Arup Roy; Goutam Chandra

2011-01-01

424

Extraction of iridoid glycosides and their determination by micellar electrokinetic capillary chromatography  

Microsoft Academic Search

Several methods for the extraction of two iridoid glycosides, catalpol and aucubin, from the plant matrix (Veronica longifolia leaves) were compared. Pressurized hot water extraction and hot water extraction were the most efficient isolation techniques for both. Pressurized liquid extraction and maceration with various organic solvents were also tested. Relative to the amounts extracted with hot water, ethanol extracted only

Johanna Suomi; Heli Sirén; Kari Hartonen; Marja-Liisa Riekkola

2000-01-01

425

Middle Albian gymnosperms from Valle del Río Martín (Teruel, Spain)  

Microsoft Academic Search

The fossil-rich site within the Albian Escucha Formation in the Oliete Sub-basin, located in the Northeast of Spain, has provided a great abundance of impressions, includes remains of leaves and seed cones of Coniferales (Sphenolepis kurriana, Sphenolepis sternbergiana, Elatides curvifolia, Brachyphyllum sp., Geinitzia), leaves of Caytoniales (Sagenopteris elliptica), Ginkgoales (Ginkgoites pluripartita and Sphenobaiera sp. cf. S. longifolia), Bennettitales (Ptilophyllum sp.

Luis M. Sender; José B. Diez; Denise Pons; Javier Ferrer; Uxue Villanueva-Amadoz

426

Pollination studies of four New Zealand terrestrial orchids and the implication for their conservation  

Microsoft Academic Search

The New Zealand orchid flora comprises 25 genera and over 100 species. Most of the species are terrestrial and are found throughout the country. Terrestrial orchids are the most threatened group within the family. We studied the pollination ecology of four terrestrial orchids: Gastrodia cunninghamii, Thelymitra longifolia, Pterostylis alobula, and P. patens. Reproduction of these orchids relies on contrasting reproductive

Carlos A. Lehnebach; Alastair W. Robertson; Duncan Hedderley

2005-01-01

427

Evaluation of some plants used in Turkish folk medicine against parasitic infections for their in vivo anthelmintic activity  

Microsoft Academic Search

Ethanolic and aqueous extracts obtained from nine plant species from seven families selected depending on their use in Turkish folk medicine, including Citrillus lanatus (Thunb.) Matsum. (seed), Jasminum fruticans L. (branches), Juniperus drupacea Labill. (fruits), Juniperus nana L. (fruit and leaves), Juniperus oxcycedrus L (fruit and leaves), Mentha longifolia L. (herba), Pinus nigra ssp. pallasiana (Lamb.) Richt. (fruits), Plantago lanceolata

Esma Kozan; Esra Küpeli; Erdem Yesilada

2006-01-01

428

Fatty acid composition in seed oils of some onagraceae  

Microsoft Academic Search

The seeds ofOenothera picensis, O. indecora, Ludwigia longifolia andL. peruviana (Onagraceae) contained 18.3, 16.4, 13.9 and 10.1% oil, respectively. Chromatographic analyses showed high levels of linoleic\\u000a acid (>71.5%) in the seed oils.

J. A. Zygadlo; R. E. Morero; R. E. Abburra; C. A. Guzman

1994-01-01

429

Hepatoprotective and antioxidant effects of Hygrophila auriculata (K. Schum) Heine Acanthaceae root extract  

Microsoft Academic Search

Hygrophila auriculata (K. Schum) Heine (syn. Asteracantha longifolia Nees, Acanthaceae) was widely used in the Indian systems of medicine for the treatment of various liver ailments. The hepatoprotective activity of the aqueous extract of the roots was studied on CCl4-induced liver toxicity in rats. The activity was assessed by monitoring the various liver function tests, viz. alanine transaminase, aspartate transaminase

P. Shanmugasundaram; S. Venkataraman

2006-01-01

430

Ground-living invertebrate assemblages in native, planted and invasive vegetation in South Africa  

Microsoft Academic Search

Invasive plants and plantations may be detrimental to native, ground-living, invertebrate fauna. Using pitfall traps at 20 sites in Pietermaritzburg, South Africa, an assessment was made of the distribution of epigaeic fauna under stands of the exotic invader plants: Acacia longifolia (long-leaved wattle), Acacia mearnsii (black wattle), Lantana camara (lantana) and Solanum mauritianum (bugweed), and also under a canopy of

Michael J. Samways; P. M. Caldwell; Rae Osborn

1996-01-01

431

Revision der Gattung Loxonia ( Gesneriaceae )  

Microsoft Academic Search

Within the genusLoxoniaJack, currently regarded as monotypic, three species are recognized:L. hirsutaJack (Sumatra, Mentawai-Islands, Java, Borneo, Anambas-Islands, Malay Peninsula),L. discolorJack (Sumatra) andL. burttianaA. Weber, spec. nova (Borneo). [Key with English translation p. 203.] There is evidence thatL. discolor is the most primitive species within the genus, the two others being derived from it.

Anton Weber

1977-01-01

432

Revising the Colonial Caribbean: \\  

Microsoft Academic Search

In 1780, the notorious rebel “Three-Finger’d Jack” Mansong escaped from slavery into the Blue Mountains of Jamaica and murdered hundreds of travelers. The dangerous outlaw remained at large for almost two years before he was captured and killed by the same Maroon who had allegedly taken two of his fingers in an earlier skirmish. 1 Jack’s exploits captured the British

Frances R. Botkin

2012-01-01

433

15 CFR 922.71 - Definitions.  

Code of Federal Regulations, 2013 CFR

... ), billfishes (family Istiophoridae ), dolphinfish (Coryphaena hippurus ), Pacific herring (Clupea pallasi ), jack mackerel (Trachurus symmetricus ), Pacific mackerel (Scomber japonicus ), salmon (Oncorhynchus spp. ), Pacific...

2013-01-01

434

Agency Response Letter GRAS Notice No. GRN 000088  

Center for Food Safety and Applied Nutrition (CFSAN)

... Jack Harris Enzyme Technical Association 1800 Massachusetts Ave., NW Second Floor Washington, DC 20036. ... Identity and Technical Effect. ... More results from www.fda.gov/food/ingredientspackaginglabeling/gras

435

Letter - Major Amendment Submission - Prevnar 13  

Center for Biologics Evaluation and Research (CBER)

... Letter - Major Amendment Submission - Prevnar 13. Our STN: BLA 125324/0. Wyeth Pharmaceuticals, Inc. Attention: Jack ... More results from www.fda.gov/biologicsbloodvaccines/vaccines/approvedproducts

436

Alternative Male Reproductive Phenotypes Affect Offspring Growth Rates in Chinook Salmon  

Microsoft Academic Search

Male age at maturity in Chinook salmon Oncorhynchus tshawytscha is a heritable trait in which the physiological “decision” to mature depends on an individual's exceeding a body size or condition threshold at critical developmental periods. In Chinook salmon, high juvenile growth rates promote the so called “jack” male life history. Jack males mature 1 year earlier than the youngest females

Barry A. Berejikian; Donald M. Van Doornik; Jeffrey J. Atkins

2011-01-01

437

Women Lawyers: Archetype and Alternatives  

Microsoft Academic Search

The following excerpt is taken from Chapter 5, Moral Vision and Professional Decisions: The Changing Values of Women and Men Lawyers, by Rand Jack and Dana Crowley Jack, published by Cambridge University Press, 1989. The authors, an attorney and a developmental psychologist, base their ideas on interviews with practicing attorneys. Recent findings in developmental psychology which show that women and

Rand Jack; Dana Crowley Jack

1989-01-01

438

Fishery Bulletin, Volume 69, Number 2, April 1971.  

National Technical Information Service (NTIS)

Contents: Swimming speed, tail beat frequency, tail beat amplitude, and size in jack mackerel and other fishes; Sustained speed of jack mackerel; The transplanting and survival of turtle grass in Boca Ciega Bay, Florida; Effect of dietary fish oil on the ...

R. Lasker

1971-01-01

439

An Assessment of the Dunlop Maxaret Anti-Locking Braking System Fitted to an Articulated Vehicle.  

National Technical Information Service (NTIS)

Jack-knifing of articulated vehicles is usually caused by the locking of the tractor rear wheels when brakes are applied. A method of preventing jack-knifing is to use an anti-locking braking system to ensure that these wheels do not lock. This report des...

H. A. Wilkins

1968-01-01

440

“It's me. I'm it.”: Defining adolescent sexual identity through relational dialectics in Dawson's creek  

Microsoft Academic Search

Television criticism frequently focuses on the deconstruction of individual representations in texts, a practice that privileges specific characters rather than relationships among characters. This paper examines the usefulness of fictional television relationships for adolescent sexual identity formation by examining Dawson's Creek for its construction of gay character Jack McPhee. Jack's sexual identity is constructed and modified through dialectical tensions in

Michaela D. E. Meyer

2003-01-01

441

78 FR 55687 - Notice of Intent To Grant an Exclusive, Partially Exclusive or Non-Exclusive License of the...  

Federal Register 2010, 2011, 2012, 2013

...543,217 Filed July 06, 2012 Entitled ''Tie-Down and Jack Fitting Assembly for Helicopter'' AGENCY: Department of the...specifically, the present invention claims to assist the users to jack and weigh the rotorcraft prior to flight operations. The...

2013-09-11

442

5. View Looking Northwest Showing (Left to Right) Stacked Tubing ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

5. View Looking Northwest Showing (Left to Right) Stacked Tubing , Well Head, Pumping Jack, and Regulator (Right Foreground) - Heckert Oil Pumping Jack, 0.6 mile North of Connoquenessing Creek, 0.15 mile East of Powder Mill Creek, Renfrew, Butler County, PA

443

Wanted: Low-Income High Achievers  

ERIC Educational Resources Information Center

|This article deals with issues of community-college transfers of students from Alamance Community College to the University of North Carolina at Chapel Hill. This article discusses the involvement of the Jack Kent Cooke Foundation in the issue of community-college transfer. The Jack Kent Cooke Foundation, based in Lansdowne, Va., near Washington,…

Fischer, Karin

2007-01-01

444

Everyone Is a Winner  

ERIC Educational Resources Information Center

|This article talks about Cal State Fullerton Special Games--Kathleen E. Faley Memorial, an annual event for individuals with disabilities at California State University, Fullerton (CSUF) on the first Friday of May. One of the founders, Kathleen Faley, is one of Jack Faley's daughters. For Jack Faley, the Special Games are more than just an event…

Moran, Robert

2008-01-01

445

27 CFR 9.107 - Lodi.  

Code of Federal Regulations, 2013 CFR

...Farmington on Farmington Road) to State Route 4's intersection with Jack Tone Road, T1N, R7E (beginning on the Farmington, Calif...Stockton East, Calif. map); (3) Then proceed north along Jack Tone Road to its intersection with Eightmile Road, T3N,...

2013-04-01

446

Everyone Is a Winner  

ERIC Educational Resources Information Center

This article talks about Cal State Fullerton Special Games--Kathleen E. Faley Memorial, an annual event for individuals with disabilities at California State University, Fullerton (CSUF) on the first Friday of May. One of the founders, Kathleen Faley, is one of Jack Faley's daughters. For Jack Faley, the Special Games are more than just an event…

Moran, Robert

2008-01-01

447

Wanted: Low-Income High Achievers  

ERIC Educational Resources Information Center

This article deals with issues of community-college transfers of students from Alamance Community College to the University of North Carolina at Chapel Hill. This article discusses the involvement of the Jack Kent Cooke Foundation in the issue of community-college transfer. The Jack Kent Cooke Foundation, based in Lansdowne, Va., near Washington,…

Fischer, Karin

2007-01-01

448

Men's Tears: Football Players' Evaluations of Crying Behavior  

Microsoft Academic Search

Guided by social constructionist and social norms perspectives on masculinity, this study examined male college football players' evaluations of crying behavior. Using an experimental design, 150 college football players were randomly assigned to four conditions in which they read different vignettes about Jack, a football player who cries after a football game. Participants who read vignettes of Jack tearing up

Y. Joel Wong; Jesse A. Steinfeldt; Julie R. LaFollette; Shu-Ching Tsao

2011-01-01

449

The Ontology of Performance in Stop Animation Kawamoto's House of Flame and Švankmajer's The Fall of the House of Usher  

Microsoft Academic Search

Judy clubs Punch with a mallet. Jack the Pumpkin King decides to take Santa's place one Christmas. Gumby foils the Blockheads' plans, yet again. In each of these cases, we as the audience focus our attention on the moving figures, finding pleasure in the characters and stories. Yet, though we focus our imaginative attention upon Jack dancing through Halloweentown, we

Laura Ivins-Hulley

450

Mountain pine beetle-associated blue-stain fungi are differentially adapted to boreal temperatures  

Microsoft Academic Search

Summary Mountain pine beetles (MPB) are the most serious pest of lodgepole pine in Canada and are likely to invade boreal jack pine forests. MPB vector three blue-stain fungi, Grosmannia clavigera, Ophiostoma montium and Leptographium longiclavatum, which contribute to beetle success. Fungal survival at extreme boreal temperatures will contribute to their success in jack pine. Growth, sporulation and survival of

A. V. Rice; M. N. Thormann; D. W. Langor

2008-01-01

451

21 CFR 161.190 - Canned tuna.  

Code of Federal Regulations, 2013 CFR

...the bottom. (iii) The hydraulic press referred to in paragraph...is made by so mounting a hydraulic jack, in a strong frame...applied. The gauge on the hydraulic jack is so calibrated that...8 -inch angle metal to support each sieve under each...

2013-04-01

452

Like Father, Like Doctor  

ERIC Educational Resources Information Center

|In this article, the author profiles Dr. Jack Kessler, chair of the Department of Neurology at Northwestern University Feinberg School of Medicine. Dr. Jack Kessler is a renowned stem cell expert and researcher. For years, Dr. Kessler had been researching ways to repair damage to the nervous system. It was not until his own daughter became…

Henderson, Nancy

2008-01-01

453

Isotopic Composition of Oxygen in Lunar Zircons.  

National Technical Information Service (NTIS)

The recent discovery of heavy oxygen in zircons from the Jack Hills conglomerates Wilde et al., and Mojzsis et al., was interpreted as an indication of presence of liquid water on the surface of Early Earth. The distribution of ages of Jack Hills zircons ...

A. A. Nemchin M. J. Whitehouse R. T. Pidgeon

2005-01-01

454

INTRODUCTION: Award of the 2004 Hannes Alfvén Prize of the European Physical Society to J W Connor, R J Hastie and J B Taylor  

Microsoft Academic Search

Jack Connor, Jim Hastie and Bryan Taylor The Hannes Alfvén Prize of the European Physical Society for Outstanding Contributions to Plasma Physics (2004) has been awarded to Jack Connor, Jim Hastie and Bryan Taylor `for their seminal contributions to a wide range of issues of fundamental importance to the success of magnetic confinement fusion, including: the development of gyro-kinetic theory;

Jo Lister

2004-01-01

455

Telecare: bridging the gap between technology and care.  

PubMed

Constance Clark is a 79-year-old widow who lives alone in what she describes as "the house that Jack built." Her husband "Jack" John Clark--Irishman, WWII veteran, handy man, craftsman, manufacturers' representative--started building their modest split-level house in a neighborhood of similar small homes when he returned from the Army in 1945. PMID:19397241

Inderwies, Gail; Taft, Louise

2008-04-01

456

Soil properties related to coniferous seedling height growth in northern Wisconsin  

SciTech Connect

Soil properties (organic matter content, pH, texture, and microclimate) were related to early height growth of jack pine, red pine, white spruce and hybrid larch planted in northern Wisconsin. Based on 2-year height growth, jack pine and hybrid larch performed best on these silty soils.

Rawinski, J.J.; Bowles, J.A.; Noste, N.V.

1980-01-01

457

The efficient evaluation of the hypergeometric function of a matrix argument  

Microsoft Academic Search

We present new algorithms that efficiently approximate the hypergeometric\\u000afunction of a matrix argument through its expansion as a series of Jack\\u000afunctions. Our algorithms exploit the combinatorial properties of the Jack\\u000afunction, and have complexity that is only linear in the size of the matrix.

Plamen Koev; Alan Edelman

2006-01-01

458

OMR (PIQUA) UNITIZED CONTROL-SAFETY ROD PROTOTYPE TESTS  

Microsoft Academic Search

S>A unitized magnetic jack driven control-safety red was developed for ; the 45.5 thermal megnwatt organic moderated reactor (Piqua). The md assembly, ; includin g neutron absorber, magnetic jack drive, shock absorber and position in ; dicator, is designed to be installed inside the reactor core tank and to operate ; immersed in the reactor coolant (Santowax-R) at 550 to

J. D. Howell

1960-01-01

459

Studies in Annonaceae XXXIII. A revision of Fusaea (Baill.) Saff  

Microsoft Academic Search

The neotropical genusFusaea is revised on the basis of almost 400 herbarium collections. The number of species is reduced to two, asF. decurrens R. E. Fr. is put into synonymy underF. longifolia (Aubl.) Saff. Three striking, newly observed characters are reported. An unknown type of coherence of styles is described.\\u000a Wood anatomically, small rhombic crystals in the ray cells of

Lars W. Chatrou; Ping He

1999-01-01

460

Snails and slugs damaging the cut foliage, Cordyline fruticosa and use of biorationals towards their management.  

PubMed

Snails and slugs became a serious molluscan pests and damaging leaves of purple compacta, Cordyline fruticosa extensively grown for export at Green Farm Ltd, Sri Lanka. The export quality of leaves of C. fruticosa is lowered due to feeding of snails, Achantina fulica (Bowditch), Opeas pyrgula Schmacker and Boettgerx and Helix aspersa Muller and slugs incurring great loss to cut foliage industry. Paucity of information is available to understand snails and slugs damage and their host range that limits to develop suitable management practices. Therefore this study was aimed to determine damage, alternate hosts and to develop possible management practices. Snails and slugs damaged mainly fresh leaves of C. fruticosa. The severity of damage was 44.5% in infested field based on the visual rating method. Leaves of cassava, sting bean, okra, cucumber, passion fruit, papaya, Glyricidia and shoe flower were identified as alternate hosts and neem, Ixora and Dracaena spp were not served as alternate hosts. Among the plant materials tested for their repellence against snails and slugs revealed that neem seed powder was an irritant; neem leaves, mint leaves and Lantana leaves were acted as anti-feedant and Salt as chemical repellent. Among the barrier and bait experiments Bordeaux mixture exhibited a significant barrier effect against horizontal movement of snails. Baits made out of Metaldehyde bait, vegetables bait and jaggery had a strong effect in repelling the snails and slugs. Mulching with Madhuca longifolia punnac was the best to reduce the snails and slugs population compared to M. longifolia seed kernel powder. Oil from M. longifolia failed to reduce their population. Hence the results revealed that saponin containing M. longifolia punnac helped to eliminate snails and slugs when used as mulch. Metaldehyde, vegetable and jaggery baits are also useful to minimize their colonization further. Hence combination of these methods will help to prevent snails and slugs from damaging C. fruticosa and benefit to the cut foliage industry to sustain its export quality. PMID:23885439

Karthiga, S; Jegathambigai, V; Karunarathne, M D S D; Svinningen, A; Mikunthan, G

2012-01-01

461

Cadmium-enriched sewage sludge application to acid and calcareous soils: effect on yield and cadmium uptake by lettuce and chard  

Microsoft Academic Search

Eight soils with pH values ranging from 4.8 to 7.8 were treated with 1% sewage sludge amended with variable amounts of CdSOâ. The concentration of Cd in the soils ranged from 0.1 to 320 ..mu..g Cd\\/g. Lettuce (Lactuca sativa var. longifolia) and Swiss chard (Beta vulgaris var. cicla) were grown to maturity in pot cultures on the treated soils to

R. J. Mahler; F. T. Bingham; A. L. Page

1978-01-01

462

Nutrient dynamics in integrated aquaculture–hydroponics systems  

Microsoft Academic Search

Changes in concentrations of dissolved Ca, Cu, Fe, K, Mg, Mn, NO3-N, Na, P, and Zn, as a function of increasing biomass of Nile tilapia (Oreochromis niloticus) fed a commercial diet in integrated aquaculture–hydroponic systems growing romaine lettuce (Lactuca sativa longifolia cv. Jericho), were monitored over three, 28-day experimental trials. The integrated systems, 320–330 l in volume, were filled initially

Damon E Seawright; Robert R Stickney; Richard B Walker

1998-01-01

463

Foliar phenolics of nebraska sandhills prairie graminoids: Between-years, seasonal, and interspecific variation  

Microsoft Academic Search

Because of their potential as antiherbivore defenses, plant phenolics elicit considerable attention. We made quantitative and qualitative analyses of phenolics, alkaloids, cyanogenic glycosides, and saponins in the dominant graminoids of a Nebraska Sandhills prairie. We examined the foliage of seven species:Agropyron smithii Rydb.,Andropogon hallii Hack.,Andropogon scoparius Michx.,Bouteloua gracilis (H.B.K) Lag. ex Griffiths,Calamovilfa longifolia (Hook.) Scribn.,Carex heliophila Mack., andStipa comata Trin

Simon Mole; Anthony Joern

1993-01-01

464

On the use of phloem sap ?¹³C as an indicator of canopy carbon discrimination.  

PubMed

In this study we measured ?¹³C in various carbon pools along the basipetal transport pathway in co-occurring Pinus pinaster and Acacia longifolia trees under Mediterranean climate conditions in the field. Overall, species differences in photosynthetic discrimination resulted in more enriched ?¹³C values in the water-conserving overstory P. pinaster relative to the water-spending understory invasive A. longifolia. Post-photosynthetic fractionation effects resulted in differences in ?¹³C of water-soluble organic matter pools along the plant axis with progressive depletion in ?¹³C from the canopy to the trunk (?6.5‰ depletion in A. longifolia and ?0.8‰ depletion in P. pinaster). Regardless of these fractionation effects, phloem sap ?¹³C in both terminal branches and the main stem correlated well with environmental parameters driving photosynthesis for both species, indicating that phloem sap ?¹³C has potential as an integrative tracer of changes in canopy carbon discrimination (?¹³C). Furthermore, we illustrate that a simple model based on sap flow estimated canopy stomatal conductance (G(S)) and phloem sap ?¹³C measurements has significant potential as a tool for estimating canopy-level carbon assimilation rates. PMID:21071770

Rascher, Katherine G; Máguas, Cristina; Werner, Christiane

2010-11-11

465

Trapping and Transportation of Adult and Juvenile Salmon in the Lower Umatilla River in Northeast Oregon: Umatilla River Basin Trap and Haul Program, October 1994-September 1995.  

SciTech Connect

Threemile Falls Dam (Threemile Dam), located near the town of Umatilla, is the major collection and counting point for adult salmonids returning to the Umatilla River. Returning salmon and steelhead were collected at Threemile Dam from August 26, 1994 to June 27, 1995. A total of 1,531 summer steelhead (Oncorhynchus mykiss); 688 adult, 236 jack, and 368 subjack fall chinook (O. tshawvtscha); 984 adult and 62 jack coho (O. kisutch) ; and 388 adult and 108 jack spring chinook (O. tshawvtscha) were collected. All fish were trapped at the east bank facility. Of the fish collected, 971 summer steelhead; 581 adult and 27 jack fall chinook; 500 adult and 22 jack coho; and 363 adult and 61 jack spring chinook were hauled upstream from Threemile Dam. There were also 373 summer steelhead; 12 adult, 186 jack and 317 subjack fall chinook; 379 adult and 32 jack coho; and 15 adult and one jack spring chinook released at Threemile Dam. In addition, 154 summer steelhead were hauled to Bonifer and Minthorn for brood. The Westland Canal facility, located near the town of Echo, is the major collection point for outmigrating juvenile salmonids and steelhead kelts. The facility operated for a total of 179 days between December 2, 1994 and July 19, 1995. During that period, fish were bypassed back to the river 137 days and were trapped 42 days. Three steelhead kelts and an estimated 1,560 pounds of juvenile fish were transported from the Westland Canal trap to the Umatilla River boat ramp at rivermile 0.5. Approximately 98% of the fish transported this year were salmonids. The Threemile Dam west bank juvenile bypass began operating March 25, 1995 and was closed on June 16, 1995. The juvenile trap was operated by Oregon Department of Fish and Wildlife research personnel from April 1, 1995 through the summer to monitor juvenile outmigration.

Zimmerman, Brian C.; Duke, Bill B.

1995-09-01

466

IUFRO Symposium on forest site and continuous productivity ...  

Treesearch

International Institute of Tropical Forestry ... Thanks also go to the session moderators(George Bengtson, Tim Ballard, H. Zottl, Dick ... Jack Winjum, Weyerhaeuser Company; and Bill Scott, Weyerhaeuser Company is gratefully acknowledged.

467

Health Care Financing Review, Winter 1985, Volume 7, Number 2.  

National Technical Information Service (NTIS)

Medicaid program characteristics: Effects on health care expenditures and utilization by Roland McDevin, William Buczko, Josephine Mauskopf, Jack Rodgers, and Allen Dobson. How available are evening dialysis services, by Philip J. Held and Victoria D. Ale...

1986-01-01

468

Record of Telephone Conversation - December 3, 2009-1 ...  

Center for Biologics Evaluation and Research (CBER)

... Non-FDA Participants: Kathrin Jansen, Jack Love, Carmel Devlin, Kathy Kofsky, Emilio Emini, Barry Caplan, Dave Zisa, Paul Rolfing, Rich Pelt. ... More results from www.fda.gov/biologicsbloodvaccines/vaccines/approvedproducts

469

Transformations: Margaret Mahy's The Tricksters  

Microsoft Academic Search

Mahy's novel begins with the arrival of the Hamilton family at Carnival's Hide for their annual celebration of Midsummer, Christmas, and the New Year. Carnival's Hide, explains Jack Hamilton to an invited friend, Anthony, is \\

Hilary Crew

470

Approaching Adult Education Literature Using the Donlevy Template of Perspectives: A Focus on the Psychological Perspective.  

ERIC Educational Resources Information Center

Provides brief descriptions of adult education from technological, psychological, ideological, and sociological perspectives. Author examines the psychological perspective, highlighting the work of Jack Mezirow (transformation theory), Roger Gould (seven-step adult development process), Patricia Cranton (Understanding and Promoting Transformative…

Donlevy, James G.; Donlevy, Tia Rice

1998-01-01

471

AASLD-FDA-NIH-PhRMA Hepatotoxicity Steering Group ...  

Center for Drug Evaluation (CDER)

... Jack Uetrecht received his Ph.D. in Organic Chemistry from Cornell University in 1972, an MD from Ohio State University of 1975 and, after a ... More results from www.fda.gov/drugs/scienceresearch/researchareas

472

Treesearch - Forest Service Research & Development  

Treesearch

Permanent sample plots, Woolsey, Theodore S. 1912, -- ... HOW to Identify and Control Stem Rusts of Jack Pine, Robbins, Kathryn; Smeltzer, Dale K.; ... Red Pine Pocket Mortality - Unknown Cause, United States Dept. of Agriculture, Forest ...

473

Anatomy of a Scout Report: Resource Discovery in the Information Age, or How We Do It  

NSDL National Science Digital Library

In this article Jack Solock, Special Librarian for InterNIC Net Scout Services, discusses the techniques, tools, and steps involved in finding and describing Internet sites included in the Scout Report publications of the Internet Scout Project.

Solock, Jack.

474

40 CFR 125.133 - What special definitions apply to this subpart?  

Code of Federal Regulations, 2013 CFR

...definition does not include mobile offshore drilling units (MODUs) (e.g., drill ships, temporarily moored semi-submersibles, jack-ups, submersibles, tender-assisted rigs, and drill barges). Minimum ambient source water surface elevation...

2013-07-01

475

The Kind of Schools We Need.  

ERIC Educational Resources Information Center

|Elliot Eisner, Lee Jacks Professor of Education and Art, Stanford University, imparts his thoughts about the salient features of schools he believes America needs, for example, having principals spend about one-third of their time in the classroom. (PKP)|

Eisner, Elliot W.

2002-01-01

476

24 CFR 3280.710 - Venting, ventilation and combustion air.  

Code of Federal Regulations, 2013 CFR

...listed or certified as part of the appliance. (2) A venting system consisting entirely of listed components, including roof jack, installed in accordance with the terms of the appliance listing and the appliance manufacturer's instructions....

2013-04-01

477

40 CFR 52.1482 - Compliance schedules.  

Code of Federal Regulations, 2013 CFR

...pollution control regulations of the State, unless otherwise noted. Source Location Regulation involved Date of adoption Jack N. Tedford, Inc Fallon Not given Aug. 14, 1972. Basic, Inc Gabbs Article 4 Feb. 13, 1973. Article...

2013-07-01

478

29 CFR 1926.416 - General requirements.  

Code of Federal Regulations, 2013 CFR

...other means. (2) In work areas where the exact location of underground electric powerlines is unknown, employees using jack-hammers, bars, or other hand tools which may contact a line shall be provided with insulated protective...

2013-07-01

479

30 CFR 550.283 - When must I revise or supplement the approved EP, DPP, or DOCD?  

Code of Federal Regulations, 2013 CFR

... You must revise your approved EP, DPP, or DOCD when you propose to: (1) Change the type of drilling rig (e.g., jack-up, platform rig, barge, submersible, semisubmersible, or drillship), production facility (e.g., caisson,...

2013-07-01

480

Agency Response Letter GRAS Notice No. GRN 000111  

Center for Food Safety and Applied Nutrition (CFSAN)

... Jack Harris Enzyme Technical Association c/o Gary L. Yingling 1800 Massachusetts Avenue, NW, Second Floor Washington, DC 20036-1800. ... More results from www.fda.gov/food/ingredientspackaginglabeling/gras

481

29 CFR 1926.300 - General requirements.  

Code of Federal Regulations, 2013 CFR

...July 15, 1972. (5) Exception: This paragraph does not apply to concrete vibrators, concrete breakers, powered tampers, jack hammers, rock drills, and similar hand operated power tools. [44 FR 8577, Feb. 9, 1979; 44 FR 20940, Apr. 6,...

2013-07-01

482

29 CFR 1926.701 - General requirements.  

Code of Federal Regulations, 2013 CFR

...operations. (1) No employee (except those essential to the post-tensioning operations) shall be permitted to be behind the jack during tensioning operations. (2) Signs and barriers shall be erected to limit employee access to the...

2013-07-01

483

7 CFR Exhibit A to Subpart F of... - National Park Service, U.S. Department of the Interior Regional Offices  

Code of Federal Regulations, 2013 CFR

...80225. States covered: Wisconsin, Iowa, Missouri, Oklahoma, Texas and West to San Francisco area. Attention: Mr. Jack R. Rudy. Telephone: 303-234-2560. Atlanta Office: 730 Peachtree Street, Atlanta, Ga. 30308. States...

2013-01-01

484

ETR CRITICAL FACILITY, TRA654. REACTOR TANK AND SUMP PIT ARE ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

ETR CRITICAL FACILITY, TRA-654. REACTOR TANK AND SUMP PIT ARE FORMED BELOW GROUND FLOOR. INL NEGATIVE NO. 56-4234. Jack L. Anderson, Photographer - Idaho National Engineering Laboratory, Test Reactor Area, Materials & Engineering Test Reactors, Scoville, Butte County, ID

485

The Branch/Terminal Issue, Part II. Testimony Presented to the National Commission on Electronic Fund Transfers, October 29, 1976.  

National Technical Information Service (NTIS)

The following witnesses testified on the branch/terminal issue in EFT (Electronic Funds Transfer): Jack Guttentag and Mark Flannery, Wharton School of Finance; Daniel Prives, Harvard Program on Information Resources Policy; James Smith, former Comptroller...

1977-01-01

486

77 FR 47831 - Combined Notice of Filings #1  

Federal Register 2010, 2011, 2012, 2013

...Duke Energy Washington II, LLC, St. Paul Cogeneration, LLC, Ironwood Windpower, LLC, Cimarron Windpower II, LLC, North Allegheny Wind, LLC, Happy Jack Windpower, LLC, Kit Carson Windpower, LLC, Silver Sage Windpower, LLC,...

2012-08-10

487

11. Historic American Buildings Survey Manning Brothers, Detroit, Photographers, circa ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

11. Historic American Buildings Survey Manning Brothers, Detroit, Photographers, circa 1920. Courtesy Save Orchestra Hall, Inc. Photocopy by Jack E. Boucher, 1973 EAST (FRONT) AND SOUTH ELEVATIONS - Orchestra Hall, 3711 Woodward Avenue, Detroit, Wayne County, MI

488

13. Historic American Buildings Survey Manning Brothers, Detroit, Photographers, circa ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

13. Historic American Buildings Survey Manning Brothers, Detroit, Photographers, circa 1920. Courtesy Save Orchestra Hall, Inc. Photocopy by Jack E. Boucher, 1973 AUDITORIUM, LOOKING NORTH - Orchestra Hall, 3711 Woodward Avenue, Detroit, Wayne County, MI

489

29 CFR 1926.450 - Scope, application and definitions applicable to this subpart.  

Code of Federal Regulations, 2013 CFR

...dissipates a substantial amount of energy during a fall arrest or limits the energy imposed on an employee during...strength is exceeded. Float (ship) scaffold means a suspension...powered by other than human energy. Pump jack scaffold...

2013-07-01

490

Masters of Adaptation: Paul Bowles, the Beats, and \\  

Microsoft Academic Search

This essay aims to think through the worldly presence of two important and culturally influential American writers in the cultural contact zones of Tangier and North Africa: Paul Bowles and Jack Kerouac. It contrasts their differing attitudes toward \\

Rob Wilson

2012-01-01

491

Retraction and Lowering of the Mirage Undercarriage.  

National Technical Information Service (NTIS)

The retraction and lowering process on the aircraft and operation of the jacks were investigated in the laboratory following a failure to lock down. Hydraulic system pressure were measured but no faults were found. It was considered that mechanical malfun...

S. R. Sarrailhe B. Quinn

1983-01-01

492

75 FR 8042 - Advisory Committee on Earthquake Hazards Reduction Meeting  

Federal Register 2010, 2011, 2012, 2013

...and Technology Advisory Committee on Earthquake Hazards Reduction Meeting AGENCY: National...SUMMARY: The Advisory Committee on Earthquake Hazards Reduction (ACEHR or Committee...CONTACT: Dr. Jack Hayes, National Earthquake Hazards Reduction Program...

2010-02-23

493

51. LAUNCH CREW IN FRONT OF BARGE ON RAIL BUGGIES. ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

51. LAUNCH CREW IN FRONT OF BARGE ON RAIL BUGGIES. (LEFT OT RIGHT: DALE WILBURN, GENE EVERLY, TIM DOEPELHEUER, JACK ROBERTS, JAMES REARICK, STEVE RAKUSKIN) - Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsville, Fayette County, PA

494

The Soil of Mars - Planetary Geology  

Microsoft Academic Search

What would it be like to walk on Mars, to let martian dirt run through your fingers? Planetary geologists, aided by amateur astronomers, are slowly figuring out what Mars is like. With a sidebar by Jack D. Farmer.

Mark A. Bullock

1994-01-01

495

63. Jet Lowe, Photographer, June 1978. TENTER FRAME, ATTIC, WITH ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

63. Jet Lowe, Photographer, June 1978. TENTER FRAME, ATTIC, WITH A LAGGED SECTION OF CARD MAIN CYLINDER ON FLOOR BESIDE DISUSED JACK CARRIAGE; VIEW LOOKING FROM THE SOUTHWEST. - Watkins Mill, County Highway MM, Lawson, Ray County, MO

496

The Big Pumpkin Count.  

ERIC Educational Resources Information Center

Pumpkin seeds are counted after students convert pumpkins to jack-o-lanterns. Among the activities involved, pupils learn to count by 10s, make estimates, and to construct a visual representation of 1,000. (MP)

Coplestone-Loomis, Lenny

1981-01-01

497

The Energy Crisis and Social Work.  

ERIC Educational Resources Information Center

|Argues that social workers will suffer in times of inflation, recession, and depleted resources. Criticizes Jack Rothman's article "Macro Social Work in a Tightening Economy" from the July 1979 issue of this journal. (Author/BEF)|

Roth, William

1980-01-01

498

Interbureau By-Lines. Volume 5, Number 2.  

National Technical Information Service (NTIS)

Contents: Mackerel or jack mackerel; Porous glass as a TLC adsorbent; Destruction of salmonella in frog legs during cooking; Computer-assisted analysis; Optical rotatory dispersion and its applications; and Mycotoxin bibliography (Continued).

C. C. Freeman V. S. Marino J. P. Erickson D. E. Smith P. DeZan

1968-01-01

499

7. EARLY VIEW OF FRONT (original at Bishop Museum, Honolulu. ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

7. EARLY VIEW OF FRONT (original at Bishop Museum, Honolulu. no date given on photo). Copy made for HABS by Jack. E. Boucher, July 1966. - Chee Kung Tong Society Headquarters, 858 Front Street, Lahaina, Maui County, HI

500

7. Historic American Buildings Survey, Unknown Photographer, no date, VIEW ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

7. Historic American Buildings Survey, Unknown Photographer, no date, VIEW OF GROUND FLOOR SALES COUNTER AND STAIRWAY, Private Collection, Photocopy by Jack Boucher, October 1972. - Powers Building, 16 Main Street West, Rochester, Monroe County, NY