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2014

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Articles 51421 - 51450 of 51556

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Understanding And Contextualizing Precedents In E-Discovery: The Illusion Of Stare Decisis And Best Practices To Avoid Reliance On Outdated Guidance, Jonathan M. Redgrave, Keltie Hays Peay, Mathea K.E. Bulander Jan 2014

Understanding And Contextualizing Precedents In E-Discovery: The Illusion Of Stare Decisis And Best Practices To Avoid Reliance On Outdated Guidance, Jonathan M. Redgrave, Keltie Hays Peay, Mathea K.E. Bulander

Richmond Journal of Law & Technology

But as precedents survive like the clavicle in the cat, long after the use they once served is at an end, and the reason for them has been forgotten, the result of following them must often be failure and confusion from the merely logical point of view.

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Cover Letter, Benjamin R. Fox Jan 2014

Cover Letter, Benjamin R. Fox

Richmond Journal of Law & Technology

The Richmond Journal of Law and Technology is proud to present its third issue of the 2013-2014 academic year. First published in 1995, JOLT is the world’s first exclusively online law review. JOLT strives to discuss new and emerging issues that fall squarely at the intersection of technology and the law. With this goal in mind, we are proud to announce the publication of the following articles.

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Grounding Drones: Big Brother’S Tool Box Needs Regulation Not Elimination, Melanie Reid Jan 2014

Grounding Drones: Big Brother’S Tool Box Needs Regulation Not Elimination, Melanie Reid

Richmond Journal of Law & Technology

The Ford Model A was advertised as “the latest and best” in the world in 1903 and sparked global interest to design and create better, faster, and more complex machines than had ever traveled on land. Fast forward to the 21st century and creating machines that can travel around the world’s airspace appears to be the latest fascination. Until relatively recently, only airplanes and helicopters dominated the friendly skies. But now, the public is catching on to the idea that building an aircraft is easier that one might expect. In fact, a pilot is no longer necessary. Drones, also referred …

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The Tangled Web: A Case Against New Generic Top-Level Domains, Joseph P. Smith Iii Jan 2014

The Tangled Web: A Case Against New Generic Top-Level Domains, Joseph P. Smith Iii

Richmond Journal of Law & Technology

If we had a reliable way to label our toys good and bad, it would be easy to regulate technology wisely. But we can rarely see far enough ahead to know which road leads to damnation.

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Cyborgs In The Courtroom: The Use Of Google Glass Recordings In Litigation, Kristin Bergman Jan 2014

Cyborgs In The Courtroom: The Use Of Google Glass Recordings In Litigation, Kristin Bergman

Richmond Journal of Law & Technology

The future is now. Wearable computers such as Google Glass (Glass) have begun entering society—we see people wearing these devices on the streets, in classrooms, at parties, and elsewhere. Though most of these devices are not yet available to the public at large, there has been much hype over the impact Glass will have on our interactions, privacy, safety, and more. Although this Article will briefly address such controversial aspects, it will focus more narrowly on the potential utility of Glass in litigation.

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Has Expungement Broken Brokercheck?, Christine Lazaro Jan 2014

Has Expungement Broken Brokercheck?, Christine Lazaro

Faculty Publications

Stockbrokers are subject to one of the most comprehensive public disclosure regimes. They must disclose substantial information about their backgrounds, their employment history, and their disciplinary history. FINRA, the self-regulatory organization that regulates the brokerage industry, also requires that brokers disclose customer complaints and makes much of this information available to the public through an online database called BrokerCheck. The allegations of wrongdoing remain on the broker’s record permanently, unless the broker succeeds at having customer dispute information expunged. The broker is able to accomplish this by requesting that the arbitration panel that hears the customer dispute grant expungement, and …

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Quotas And The Transatlantic Divergence Of Corporate Governance, Véronique Magnier, Darren Rosenblum Jan 2014

Quotas And The Transatlantic Divergence Of Corporate Governance, Véronique Magnier, Darren Rosenblum

Faculty Publications

The French adoption of a corporate board quota for women reflects Europe’s increasingly stakeholder-oriented approach to corporate governance, one that stands in marked contrast with that of the United States. This Article discusses how the corporate board quota will shift French and European corporate governance. The change accentuates an already established stakeholder corporate culture widespread in Europe, most notably evidenced by the presence of worker representation on boards. In contrast, the United States’ corporate governance structure increasingly places the shareholder at its center. The proliferation of quotas for women on corporate boards in the national and transnational European contexts is …

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High Hopes: Fostering A Culture Of Hope At A Community College, Mary Wells, Emily Gilbert, Lisa Mahle-Grisez, Reece Newman, Kathy Rowell Jan 2014

High Hopes: Fostering A Culture Of Hope At A Community College, Mary Wells, Emily Gilbert, Lisa Mahle-Grisez, Reece Newman, Kathy Rowell

Mid-Western Educational Researcher

A recent report from the American Association of Community Colleges indicates that about half of first-year students do not return for a second year, and 35% of students withdraw despite having an A or B average. These students may have particularly challenging circumstances, such as juggling family and work obligations along with school. The authors suggest that students’ sense of “hopefulness” forecasts their academic success and persistence, and offer an account of their ongoing campus-wide efforts to create more hopeful classrooms and experiences for their students.

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Ethnic Identity, Gender, And Adolescent Attitude Toward School: Adaptive Perspectives In Diverse Settings, Margaret Zoller Booth, Erin M. Curran, Christopher J. Frey, Jean M. Gerard, Bruce Collet, Jennifer Bartimole Jan 2014

Ethnic Identity, Gender, And Adolescent Attitude Toward School: Adaptive Perspectives In Diverse Settings, Margaret Zoller Booth, Erin M. Curran, Christopher J. Frey, Jean M. Gerard, Bruce Collet, Jennifer Bartimole

Mid-Western Educational Researcher

The relationships between adolescent ethnic identity and attitudes toward school and school climate are investigated in a small, multiracial/multiethnic city in the Great Lakes region with ethnically diverse adolescents taught by primarily White teachers. The mixed methods investigation of 986 eighth through eleventh grade students during the 2010-2011 academic year suggests that the relationship between ethnic identity and attitude toward school is a complex interaction among individual characteristics of ethnicity/race, ethnic identity, gender, and ecological context. Quantitative results reveal that White female and Hispanic and African American male students exhibit strong ethnic identity that correlates positively with school attitude; however, …

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Teacher Evaluation And The Problem Of Professional Development, Mark A. Smylie Jan 2014

Teacher Evaluation And The Problem Of Professional Development, Mark A. Smylie

Mid-Western Educational Researcher

During the past 10 to 15 years, nearly every state and school district across the nation has begun to dramatically overhaul their evaluation systems for teachers. Such evaluation systems are ultimately aimed at improving teachers’ instructional practices. However, the evidence on the efficacy and effectiveness of these systems is weak and equivocal at best. One of the major factors associated with the lack of impact of these systems is the troublesome relationship between evaluation and professional development – the opportunities for teachers to learn and improve their practice in response to and beyond the process of evaluation itself. Policies governing …

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Impact Of Entrepreneurship Education On Entrepreneurial Intentions Of University Students In Egypt, Hala Wasef Hattab, Hala Wasef Hattab Jan 2014

Impact Of Entrepreneurship Education On Entrepreneurial Intentions Of University Students In Egypt, Hala Wasef Hattab, Hala Wasef Hattab

Business Administration

No abstract provided.

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Fesitval City As A Tool For Urban Cities Development – El Mulid Case Study In Egypt, Dalia Moati, Rasha Sayed Jan 2014

Fesitval City As A Tool For Urban Cities Development – El Mulid Case Study In Egypt, Dalia Moati, Rasha Sayed

Architectural Engineering

No abstract provided.

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Effect Of Gamma Ray Irradiation And Cryopreservation On Pollen Stainability, In Vitro Germination, And Fruit Set In Citrus, Manoj Kundu, Anil Dubey, Manish Srivastav, Surendra Malik, Bhupinder Singh Jan 2014

Effect Of Gamma Ray Irradiation And Cryopreservation On Pollen Stainability, In Vitro Germination, And Fruit Set In Citrus, Manoj Kundu, Anil Dubey, Manish Srivastav, Surendra Malik, Bhupinder Singh

Turkish Journal of Biology

The present work analyzed the stainability and in vitro germinability of the gamma-ray-irradiated fresh and cryopreserved pollens of 3 Citrus species: C. limon, C. limetta, and C. sinensis. Fruit set after pollinating 75 flowers of C. grandis with irradiated and nonirradiated (control) fresh and cryopreserved pollen was also assessed. Results showed that in solid and liquid culture media the highest in vitro germination values were detected in fresh (61.45% and 62.53%, respectively) as well as cryopreserved (53.17% and 55.36%, respectively) C. sinensis nonirradiated pollens. However, at a higher irradiation dose of 500 Gy in both culture media, the minimum reduction …

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Ex Situ Conservation Of Dianthus Giganteus D’Urv. Subsp. Banaticus (Heuff.) Tutin By In Vitro Culture And Assessment Of Somaclonal Variability By Molecular Markers, Liliana Jarda, Anca Butiuc Keul, Maria Hohn, Andrzej Pedryc, Victoria Cristea Jan 2014

Ex Situ Conservation Of Dianthus Giganteus D’Urv. Subsp. Banaticus (Heuff.) Tutin By In Vitro Culture And Assessment Of Somaclonal Variability By Molecular Markers, Liliana Jarda, Anca Butiuc Keul, Maria Hohn, Andrzej Pedryc, Victoria Cristea

Turkish Journal of Biology

Ex situ conservation of Dianthus giganteus subsp. banaticus was obtained by in vitro culture on different culture media supplemented with phytohormones. Assessment of somaclonal variability over a period of preservation by in vitro culture is required prior to introduction and acclimatization in natural habitats. In this study we used 2 types of molecular markers, ISSR and multilocus SSR markers, which allow comparison of different alleles, to assess the somaclonal variability of endemic taxa Dianthus giganteus subsp. banaticus after a period of 24 months of preservation by in vitro culture. The assessment of somaclonal variability of D. giganteus subsp. banaticus shows …

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Genotoxic Effects Of Zinc Oxide And Titanium Dioxide Nanoparticles On Root Meristem Cells Of Allium Cepa By Comet Assay, Eşref Demi̇r, Nuray Kaya, Bülent Kaya Jan 2014

Genotoxic Effects Of Zinc Oxide And Titanium Dioxide Nanoparticles On Root Meristem Cells Of Allium Cepa By Comet Assay, Eşref Demi̇r, Nuray Kaya, Bülent Kaya

Turkish Journal of Biology

Nanogenotoxicity is an emergent field, relevant for estimating the potential genotoxic risk of nanomaterials. In this study we investigated the genotoxic potential of zinc oxide (ZnO, Keywords: Zinc oxide nanoparticles, titanium dioxide nanoparticles, Allium cepa, comet assay, genotoxicity, DNA damage

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Development Of An Improved Rna Interference Vector System For Agrobacterium-Mediated Plant Transformation, Umut Toprak, Cathy Coutu, Doug Baldwin, Martin Erlandson, Dwayne Hegedus Jan 2014

Development Of An Improved Rna Interference Vector System For Agrobacterium-Mediated Plant Transformation, Umut Toprak, Cathy Coutu, Doug Baldwin, Martin Erlandson, Dwayne Hegedus

Turkish Journal of Biology

Plant-mediated RNA interference (RNAi) has shown a great potential in pest control and requires i) subcloning of sense/antisense regions in compatible vectors, ii) transfer of the silencing cassette into a binary vector, iii) transformation of Agrobacterium tumefaciens with desired binary plasmids, and iv) transformation of plants with Agrobacterium. The procedure is long and should ensure plasmid backbone stability; however, plasmid recombination due to antibiotic selection is a common problem. pGSA1252 is an RNAi silencing binary vector allowing direct cloning of hairpin structure; however, it possesses a chloramphenicol selection marker leading to plasmid recombination in various Agrobacterium strains. To solve this …

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The Genus Crocus, Series Crocus (Iridaceae) In Turkey And 2 East Aegean Islands: A Genetic Approach, Osman Erol, Hi̇lal Betül Kaya, Levent Şik, Meti̇n Tuna, Levent Can, Muhammed Bahatti̇n Tanyolaç Jan 2014

The Genus Crocus, Series Crocus (Iridaceae) In Turkey And 2 East Aegean Islands: A Genetic Approach, Osman Erol, Hi̇lal Betül Kaya, Levent Şik, Meti̇n Tuna, Levent Can, Muhammed Bahatti̇n Tanyolaç

Turkish Journal of Biology

In this study, a total of 26 Crocus specimens from different locations across Turkey and 2 East Aegean islands (Chios and Samos) were analyzed using 12 amplified fragment length polymorphism (AFLP) primer combinations to obtain information on genetic diversity, population structure, and genetic relationships. A total of 369 polymorphic AFLP bands were generated and scored as binary data. Genetic similarities were determined. Cluster analysis revealed 4 major groups among the 26 genotypes examined in this study. The nuclear DNA contents (2C) of the 26 Crocus specimens were found to range from 5.08 pg in C. asumaniae to 9.75 pg in …

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Molecular Characterization Of The Encoding Regions And Tissue Expression Analyses For 3 Novel Buffalo Akt Genes, Akt1, Akt2, And Akt3, Chunfeng Wu, Lixian Liu, Jinlong Huo, Dalin Li, Yueyun Yuan, Feng Yuan, Yongwang Miao Jan 2014

Molecular Characterization Of The Encoding Regions And Tissue Expression Analyses For 3 Novel Buffalo Akt Genes, Akt1, Akt2, And Akt3, Chunfeng Wu, Lixian Liu, Jinlong Huo, Dalin Li, Yueyun Yuan, Feng Yuan, Yongwang Miao

Turkish Journal of Biology

The objective of this study was to obtain the complete coding sequences (CDSs) of 3 buffalo genes (AKT1, AKT2, and AKT3) using reverse-transcriptase polymerase chain reaction and to depict their molecular characterizations and tissue expression patterns in buffalo. The buffalo AKT1, AKT2, and AKT3 CDSs were 1443 bp, 1446 bp, and 1440 bp in length and encoded 480, 481, and 479 amino acids, respectively. Nine, 13, and 3 nucleotide differences were found in the CDSs between buffalo and other bovine species. Phylogenetic analyses showed that buffalo AKT1 and AKT2 have close genetic relationships with other species in the family Bovidae, …

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In Vitro Micropropagation From Immature Embryos Of The Endemic And Endangered Muscari Muscarimi Medik., Sati Uzun, İskender Parmaksiz, Serkan Uranbey, Semra Mi̇ri̇ci̇, Ercüment Osman Sarihan, Ari̇f İpek, Mehmet Demi̇r Kaya, Bi̇lal Gürbüz, Neşet Arslan, Cengi̇z Sancak, Khalid Mahmood Khawar, Sebahatti̇n Özcan Jan 2014

In Vitro Micropropagation From Immature Embryos Of The Endemic And Endangered Muscari Muscarimi Medik., Sati Uzun, İskender Parmaksiz, Serkan Uranbey, Semra Mi̇ri̇ci̇, Ercüment Osman Sarihan, Ari̇f İpek, Mehmet Demi̇r Kaya, Bi̇lal Gürbüz, Neşet Arslan, Cengi̇z Sancak, Khalid Mahmood Khawar, Sebahatti̇n Özcan

Turkish Journal of Biology

An efficient in vitro bulblet production procedure from immature zygotic embryos of endemic and endangered Muscari muscarimi Medik. was described in the current study. Zygotic embryos were first isolated from immature seeds and cultured on different nutrient media compositions supplemented with various combinations of \alpha-naphthalene acetic acid (NAA), picloram, dicamba, 6-benzylaminopurine (BAP), and thidiazuron (TDZ). The best bulblet regeneration (59 bulblets per explant) was achieved in Murashige and Skoog (MS) medium containing 4 mg/L BAP and 0.5 mg/L NAA after 1 year of culture initiation. Regenerated bulblets were then transferred into MS medium without plant growth regulators for rooting. Bulblets …

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A Comparative Study On Plant Morphology, Gas Exchange Parameters, And Antioxidant Response Of Ocimum Basilicum L. And Origanum Vulgare L. Grown On Industrially Polluted Soil, Ira Stancheva, Maria Geneva, Yuliana Markovska, Nikolina Tzvetkova, Ivanka Mitova, Milka Todorova, Petar Petrov Jan 2014

A Comparative Study On Plant Morphology, Gas Exchange Parameters, And Antioxidant Response Of Ocimum Basilicum L. And Origanum Vulgare L. Grown On Industrially Polluted Soil, Ira Stancheva, Maria Geneva, Yuliana Markovska, Nikolina Tzvetkova, Ivanka Mitova, Milka Todorova, Petar Petrov

Turkish Journal of Biology

The effects of Cd, Pb, and Zn uptake on plant morphology, photosynthetic parameters, antioxidant potential, and essential oil yield and quality in Ocimum basilicum L. and Origanum vulgare L. plants were evaluated. The plants were grown as a pot experiment in soil heavily polluted with Cd and Pb and on unpolluted soil. Both plants accumulated Cd, mainly in the roots, while Pb occurred in the oregano shoots only. The leaf blade thickness of both plants increased when grown in polluted soil. Basil plants responded to the action of heavy metals with increases in gas exchange, stomatal conductivity, and transpiration, but …

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Reactive Dye Decolorization Activity Of Crude Laccase Enzyme From Repeated-Batch Culture Of Funalia Trogii, Özfer Yeşi̇lada, Emre Bi̇rhanli, Si̇nem Ercan, Nesri̇n Özmen Jan 2014

Reactive Dye Decolorization Activity Of Crude Laccase Enzyme From Repeated-Batch Culture Of Funalia Trogii, Özfer Yeşi̇lada, Emre Bi̇rhanli, Si̇nem Ercan, Nesri̇n Özmen

Turkish Journal of Biology

The effect of various factors on dye decolorization activity of crude laccase enzyme from repeated-batch culture of Funalia trogii ATCC 200800 to obtain rapid and high decolorization activity against Reactive Black 5 and Reactive Blue 171 dyes was investigated. All conditions used were important for dye decolorizing activity of this crude laccase enzyme. The optimum pH of decolorization was tested at 30 °C and it was around 3.0. This activity was highly reduced at pH 4.5-6.0. On the other hand, the optimum temperature for rapid and high decolorization was 50 °C. Importantly, the decolorization rate of crude laccase at pH …

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Cloning, Expression, And Characterization Of A Novel Ctp Synthase Gene From Anoxybacillus Gonensis G2, Cemal Sandalli, Ayşegül Saral, Serdar Ülker, Hakan Karaoğlu, Ali̇ Osman Beldüz, Ayşegül Çopur Çi̇çek Jan 2014

Cloning, Expression, And Characterization Of A Novel Ctp Synthase Gene From Anoxybacillus Gonensis G2, Cemal Sandalli, Ayşegül Saral, Serdar Ülker, Hakan Karaoğlu, Ali̇ Osman Beldüz, Ayşegül Çopur Çi̇çek

Turkish Journal of Biology

The cytidine-5'-triphosphate (CTP) synthase (EC 6.4.3.2) gene (pyrG) was cloned and sequenced from the thermophilic bacterium Anoxybacillus gonensis G2 (Ago). The gene is 1590 bp in length and encodes a protein of 530 amino acids, with a molecular mass of 59.5 kDa. The amino acid sequence of CTP synthase shares approximately 90%-94% similarity to Bacillus sp., and it belongs to the triad glutamine amidotransferases, which utilize a Cys-His-Glu triad for activity. Multiple sequence alignments revealed that the enzyme includes conserved amino acids responsible for catalytic activity and the binding of a divalent metal ion (Mg^{+2}). AgoCTP synthase (AgoG2CTPs) was overproduced …

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A Simple Guanidinium Isothiocyanate Method For Bacterial Genomic Dna Isolation, Erkan Mozi̇oğlu, Müslüm Akgöz, Candan Tamerler, Zühtü Tanil Kocagöz Jan 2014

A Simple Guanidinium Isothiocyanate Method For Bacterial Genomic Dna Isolation, Erkan Mozi̇oğlu, Müslüm Akgöz, Candan Tamerler, Zühtü Tanil Kocagöz

Turkish Journal of Biology

A high-quality and low-cost genomic DNA isolation method is needed for use in microbiology laboratories. In this study, we developed a new modified guanidinium isothiocyanate method to isolate DNA from Escherichia coli, Salmonella enterica subsp. enterica serotype Typhimurium, and Staphylococcus aureus and compared it with 4 other DNA isolation methods. The results show that the modified guanidinium isothiocyanate method developed in our laboratory is simple, fast, and inexpensive and yields DNA whose quality and quantity are similar to that of 2 commercial extraction kits but far better than 2 conventional DNA extraction methods used for comparison.

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Defense Enzyme Activities And Biochemical Variations Of Pelargonium Zonale In Response To Nanosilver Application And Dark Storage, Mehrnaz Hatami, Mansour Ghorbanpour Jan 2014

Defense Enzyme Activities And Biochemical Variations Of Pelargonium Zonale In Response To Nanosilver Application And Dark Storage, Mehrnaz Hatami, Mansour Ghorbanpour

Turkish Journal of Biology

Pelargonium petal abscission and ethylene-induced leaf senescence are major problems that reduce the longevity of plants. This study was carried out to determine the poststorage influence of nanosilver (NS) particle (0, 20, 40, 60, and 80 mg L^{-1}) application during dark storage period on chlorophyll and carotenoid pigments, malondialdehyde (MDA) content, leaf protein and ethylene concentration, petal abscission, membrane stability index (MSI), and enzyme activity including ascorbate peroxidase (APX), peroxidase (POD), superoxide dismutase (SOD), catalase (CAT), and \BETA-glucosidase (\BETA-GLU) in two Pelargonium pot plants of the cultivars Flowerfairy and Foxi. Enhanced photosynthetic pigment contents were recorded in leaves of both …

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Comprehensive Analysis Of Beta-Galactosidase Protein In Plants Based On Arabidopsis Thaliana, Samin Seddigh, Maryam Darabi Jan 2014

Comprehensive Analysis Of Beta-Galactosidase Protein In Plants Based On Arabidopsis Thaliana, Samin Seddigh, Maryam Darabi

Turkish Journal of Biology

Beta-galactosidases (\BETAgals) (EC 3.2.1.23) have been detected in a wide range of plant organs and tissues and are described by their ability to hydrolyze terminal nonreducing \BETA-D-galactosyl residues from \BETA-D-galactosides. In this study, 92 \BETAgal protein sequences from different plants, 7 animal samples including human and mouse, 3 samples from bacteria including Escherichia coli, and 4 samples from insects including Drosophila melanogaster were aligned. Sequences were analyzed by computational tools to predict the protein properties, such as molecular mass, isoelectric point, signal peptide, motifs, transmembrane domain, and secondary and spatial structure. Protein structure analysis revealed there is a high identity …

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Cover And Contents Jan 2014

Cover And Contents

Turkish Journal of Biology

No abstract provided.

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Temperature-Induced Stress Response In Lymantria Dispar Neurosecretory Neurons, Larisa Ilijin, Milena Vlahovic, Vesna Peric Mataruga, Ivana Kmetic, Anja Gavrilovic, Dragana Matic, Marija Mrdakovic Jan 2014

Temperature-Induced Stress Response In Lymantria Dispar Neurosecretory Neurons, Larisa Ilijin, Milena Vlahovic, Vesna Peric Mataruga, Ivana Kmetic, Anja Gavrilovic, Dragana Matic, Marija Mrdakovic

Turkish Journal of Biology

The release of neurosecretory material from A2 neurosecretory neurons (NSNs) was stimulated in Lymantria dispar fourth instar caterpillars exposed to a temperature of 35 °C for 1, 12, and 24 h, as well as those allowed recover after exposure (12 h at 35 °C, then 12 h at 23 °C). The levels of 2 protein forms with the same molecular mass as bombyxin (3-4 and 4-5 kDa) increased with prolonged exposure to 35 °C. The second band was present only in the groups exposed to this stressor. There was intensified synthetic activity and a low level of secretion in L2' …

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The Modeled Structures Of Deg5 And Deg8 Proteases In Arabidopsis Thaliana, Liangbing Chen, Qingzhi Li, Lili Li Jan 2014

The Modeled Structures Of Deg5 And Deg8 Proteases In Arabidopsis Thaliana, Liangbing Chen, Qingzhi Li, Lili Li

Turkish Journal of Biology

Deg5 and Deg8 are chloroplastic proteases found in Arabidopsis thaliana. These proteases participate in the repair of photosystem II. However, little information exists on the structures of Deg5 and Deg8. Here, the Deg5 and Deg8 structures were modeled using the SWISS-MODEL tool with Deg1 as the structural template. Deg5 was composed of only 1 domain, a protease domain. The catalytic triad of Deg5, which comprises His147, Asp188, and Ser266, was located in the cleft between 2 \beta-barrels. Deg8 was composed of a protease domain at the N-terminal and a PDZ domain at the C-terminal. The catalytic triad of Deg8, which …

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Purification And Characterization Of An Antibacterial Substance Produced By Pest-Originated Serratia Marcescens Mm3, Serpi̇l Uğraş, Kazim Sezen, Hati̇ce Kati, Zi̇hni̇ Demi̇rbağ Jan 2014

Purification And Characterization Of An Antibacterial Substance Produced By Pest-Originated Serratia Marcescens Mm3, Serpi̇l Uğraş, Kazim Sezen, Hati̇ce Kati, Zi̇hni̇ Demi̇rbağ

Turkish Journal of Biology

The aim of this investigation was to determine, purify, and characterize an antibacterial substance produced by Serratia marcescens Mm3 (Sm-Mm3) isolated from a common pest of hazelnut in Turkey, Melolontha melolontha, which is also a significant pest all over the world. A highly active antibacterial substance produced by Sm-Mm3 was purified by ammonium sulfate precipitation and high-performance liquid chromatography, respectively, and identified by spectrometric analysis (TOF-MS). Finally, we showed that this molecule is heat-stable, stable in the pH range of 5-9, and insensitive to organic solvents and proteinase K. The molecular mass was determined as 479 Da. Plasmid elimination demonstrated …

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Serum Leptin Profiles, Food Intake, And Body Weight In Melatonin-Implanted Syrian Hamsters (Mesocricetus Auratus) Exposed To Long And Short Photoperiods, Bülent Gündüz Jan 2014

Serum Leptin Profiles, Food Intake, And Body Weight In Melatonin-Implanted Syrian Hamsters (Mesocricetus Auratus) Exposed To Long And Short Photoperiods, Bülent Gündüz

Turkish Journal of Biology

We have shown that circadian changes in leptin concentrations are inversely linked to circulating melatonin levels in the Syrian hamster. The present study aimed to assess the effects of subcutaneous melatonin implants under different photoperiodic conditions: did the implants affect serum leptin levels, body weight, food consumption, and/or testicular weight? Male hamsters were exposed to long and short photoperiods for 10 weeks and received subcutaneous melatonin implants (1 mg in 24 mg beeswax) every 2 weeks. Blood samples were collected every week at midday (1200 hours) or midnight (0000 hours) to assess leptin and melatonin concentrations. Testes were measured to …

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