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Articles 15901 - 15930 of 16971
Full-Text Articles in Entire DC Network
Diversity Of Alticinae (Coleoptera, Chrysomelidae) In Kasnak Oak Forest Nature Reserve, Isparta, Turkey, Ebru Gül Aslan, Yusuf Ayvaz
Diversity Of Alticinae (Coleoptera, Chrysomelidae) In Kasnak Oak Forest Nature Reserve, Isparta, Turkey, Ebru Gül Aslan, Yusuf Ayvaz
Turkish Journal of Zoology
Different habitat types chosen from Kasnak Oak Forest Nature Reserve (Isparta, Turkey) and 3 plots with vegetation structure, were studied comparatively with Alticinae (Coleoptera, Chrysomelidae) species composition, its richness and abundance. The study was conducted between the months of April and October at 15-day intervals during 2005 and 2006. Sixty-six sets of data were obtained during the survey, including 22 samplings for each plot. A total of 2650 individuals belonging to 57 species were recorded from the chosen plots. Species richness estimators were used to measure the completeness of the inventories. Values predicted by different non-parametric estimators showed that further …
A New Species Of Terellia Robineau-Desvoidy (Diptera: Tephritidae) From Turkey, Murat Kütük
A New Species Of Terellia Robineau-Desvoidy (Diptera: Tephritidae) From Turkey, Murat Kütük
Turkish Journal of Zoology
Terellia yukseli n. sp. was collected in Turkey from Centaurea urvillei DC. and is described, illustrated, and placed in the subgenus Cerajocera. Type locality is Niğde Sazlıca, and specimens were collected from Centaurea urvillei DC. This species is most similar to T. setifera Hendel and T. clarissima Korneyev in having entirely hyaline wing. It can be distinguished from other species of Terellia by the lack of wing spot pattern, the presence of a spinose antennal horn, and characteristic glans and aculeus. Photographs of the specimens and detailed illustrations of the genitalia structures are provided.
Revised Checklist Of Turkish Agromyzidae (Diptera) Fauna Of Turkey, Hasan Sungur Ci̇velek, Emi̇ne Çikman, Oktay Dursun
Revised Checklist Of Turkish Agromyzidae (Diptera) Fauna Of Turkey, Hasan Sungur Ci̇velek, Emi̇ne Çikman, Oktay Dursun
Turkish Journal of Zoology
This study was carried out in the years of 2007 and 2008 in some provinces of Turkey. Specimens of leafminers were collected on cultured and non-cultured plants during 1 year. In this study, 29 new records belonging to 7 genera were found for the Turkish fauna. With this study, the number of leafminer species, which was 136 previously, has been updated to 165 species.
Changes In The Lake Ladik Fish Community (1972-2004) And Ichthyofauna Of Its Inlet And Outlet Streams (Samsun, Turkey), Selma Uğurlu, Nazmi̇ Polat, Şevket Kandemi̇r
Changes In The Lake Ladik Fish Community (1972-2004) And Ichthyofauna Of Its Inlet And Outlet Streams (Samsun, Turkey), Selma Uğurlu, Nazmi̇ Polat, Şevket Kandemi̇r
Turkish Journal of Zoology
This research was conducted to record the fish species inhabiting Lake Ladik and its inlet and outlet streams between July 2003 and August 2004. Electrofishing equipment, fishing cast net, fisherman's dip net, and fishing nets with different scales were used to catch fish samples. As a result of evaluated samples caught from the research area, 12 species belonging to 4 families (Cyprinidae, Balitoridae, Esocidae, and Percidae) were identified.
Notes On Amphipods Caprella Andreae Mayer, 1890 And Podocerus Chelonophilus (Chevreux & Guerne, 1888) Collected From The Loggerhead Sea Turtle, Caretta Caretta, Off The Mediterranean And The Aegean Coasts Of Turkey, Murat Sezgi̇n, A. Suat Ateş, Tuncer Katağan, Kerem Bakir, Şükran Yalçin Özdi̇lek
Notes On Amphipods Caprella Andreae Mayer, 1890 And Podocerus Chelonophilus (Chevreux & Guerne, 1888) Collected From The Loggerhead Sea Turtle, Caretta Caretta, Off The Mediterranean And The Aegean Coasts Of Turkey, Murat Sezgi̇n, A. Suat Ateş, Tuncer Katağan, Kerem Bakir, Şükran Yalçin Özdi̇lek
Turkish Journal of Zoology
The present study reports the occurrence of 2 amphipod species, Caprella andreae Mayer, 1890 and Podocerus chelonophilus Chevreux & Guerne, 1888, that appeared on the carapace of the loggerhead turtle Caretta caretta (Linnaeus, 1758) in the eastern Mediterranean Sea (Levantine Sea). The amphipod specimens were found on a male Caretta caretta captured during experimental bottom studies conducted off Samandağ, Hatay (the Turkish Mediterranean coast) on 7 April 2007. In addition, Caprella andreae Mayer 1890 was collected from the nets of fish cages off the Seferihisar (Aegean Sea) coast (38^{°}11^{'}32^{"}N, 26^{°}38^{'}07^{"}E). C. andreae is a first report for the amphipod fauna …
Oestradiol Level And Opportunistic Mating In Women, Kristina M. Durante, Norman P. Li
Oestradiol Level And Opportunistic Mating In Women, Kristina M. Durante, Norman P. Li
Research Collection School of Social Sciences
The ovarian steroid hormone oestradiol plays a crucial role in female fertility, sexual motivation and behaviour. We investigated the relationship between oestradiol and the likelihood that women would engage in opportunistic mating. Two salivary samples were taken from normally cycling women within the peri-ovulatory and luteal phase of the menstrual cycle. At both testing sessions, participants also completed selfperceived desirability scales and provided subjective reports of sexual and social motivations, and satisfaction with their primary relationship partner. Oestradiol level was positively associated with a woman’s self- and other-perceived physical attractiveness and with inclinations to mate outside her current relationship. Oestradiol …
Ethnic Fertility Differentials In Vietnam And Their Proximate Determinants, Sajeda Amin, Bussarawan Teerawichitchainan
Ethnic Fertility Differentials In Vietnam And Their Proximate Determinants, Sajeda Amin, Bussarawan Teerawichitchainan
Research Collection School of Social Sciences
Southeast Asia‘s rapid economic growth and demographic change have brought divergent fertility behaviors, particularly those of socially excluded groups, into sharper focus. In Vietnam, while the majority Vietnamese and ethnic Chinese, who together account for 85 percent of the country‘s population and benefit the most from the country‘s economic progress, have achieved replacement fertility, certain ethnic minority groups still have total fertility rates exceeding 4. This paper explores proximate determinants of fertility across ethnic groups using a new classification system for ethnicity in Vietnam based on poverty indicators, location, and degree of assimilation of ethnic groups. We decompose components of …
Risk Of Dementia Associated With Elevated Plasma Homocysteine In A Latin American Population, Inara J. Chacon, Aldrín E. Molero, Gloria Pino-Ramírez, José A. Luchsinger, Joseph H. Lee, Gladys E. Maestre
Risk Of Dementia Associated With Elevated Plasma Homocysteine In A Latin American Population, Inara J. Chacon, Aldrín E. Molero, Gloria Pino-Ramírez, José A. Luchsinger, Joseph H. Lee, Gladys E. Maestre
School of Medicine Publications
The relationship between total homocysteine (tHcy) and dementia risk remains controversial, as the association varies among populations and dementia subtypes. We studied a Venezuelan population that has high prevalence of both elevated tHcy and dementia. We tested the hypotheses that (1) elevated tHcy is associated with increased dementia risk, (2) the risk is greater for vascular dementia (VaD) than for Alzheimer’s disease (AD), and (3) a history of stroke may partly explain this association. 2100 participants (≥55 years old) of the Maracaibo Aging Study underwent standardized neurological, neuropsychiatric, and cardiovascular assessments. Elevated tHcy was significantly associated with dementia, primarily VaD. …
Softcomputing Identification Techniques Of Asynchronous Machine Parameters: Evolutionary Strategy And Chemotaxis Algorithm, Nouri Benaïdja
Softcomputing Identification Techniques Of Asynchronous Machine Parameters: Evolutionary Strategy And Chemotaxis Algorithm, Nouri Benaïdja
Turkish Journal of Electrical Engineering and Computer Sciences
Softcomputing techniques are receiving attention as optimisation techniques for many industrial applications. Although these techniques eliminate the need for derivatives computation, they require much work to adjust their parameters at the stage of research and development. Issues such as speed, stability, and parameters convergence remain much to be investigated. This paper discusses the application of the method of reference model to determine parameters of asynchronous machines using two optimisation techniques. Softcomputing techniques used in this paper are evolutionary strategy and the chemotaxis algorithm. Identification results using the two techniques are presented and compared with respect to the conventional simplex technique …
An Intelligent Face Features Generation System From Fingerprints, Şeref Sağiroğlu, Necla Özkaya
An Intelligent Face Features Generation System From Fingerprints, Şeref Sağiroğlu, Necla Özkaya
Turkish Journal of Electrical Engineering and Computer Sciences
In this study, a novel intelligent system based on artificial neural networks was designed and introduced for generating faces from fingerprints with high accuracy. The proposed system has a number of modules including two feature enrolment modules for acquiring the fingerprints and faces into the system, two feature extractors for extracting the feature sets of fingerprint and face biometrics, an artificial neural network module that was configured with the help of Taguchi experimental design method for establishing relationships among the biometric features, a face re-constructor for building up face features from the results of the system, and a test module …
The Influence Of Sibling Support On Children's Post-Divorce Adjustment: A Turning Point Analysis, Kimberly Ann Jacobs
The Influence Of Sibling Support On Children's Post-Divorce Adjustment: A Turning Point Analysis, Kimberly Ann Jacobs
Graduate Student Theses, Dissertations, & Professional Papers
Most previous research on children’s adjustment following the divorce of their parents has focused on the consequences of parents’ actions and communication choices. Relatively little is known about the impact that sibling relationships have on post-divorce adjustment. The current study was designed to explore the relationship between sibling social support (emotional, instrumental, and informational support) and adjustment. Data was collected from 34 participants using the Retrospective Interview Technique (RIT). Participants identified key turning points in their adjustment process and used those points as an interview guide to talk about support from and communication with their siblings. Numerical questionnaire data was …
Territoriality And Habitat Selection Of Feral Pigs On Fort Benning, Georgia, Usa, William Deroche Sparklin
Territoriality And Habitat Selection Of Feral Pigs On Fort Benning, Georgia, Usa, William Deroche Sparklin
Graduate Student Theses, Dissertations, & Professional Papers
Feral pigs are one of the most successful, widespread, economically and environmentally damaging invasive mammalian species worldwide. I conducted a study of feral pig sounders (female social groups) on Fort Benning, Georgia to test our hypotheses that feral pigs were territorial at the sounder level and that territoriality was a key factor influencing habitat selection of feral pigs. I used Global Positioning System (GPS) location data from 24 individuals representing 18 sounders combined with mark-recapture and camera trap data to evaluate evidence of territorial behavior at the individual and sounder levels by comparing the degree of overlap between home ranges. …
The House That Smokey Built: The Forest Service Management Of Historic Structures In Wilderness, Molly Michelle Ryan
The House That Smokey Built: The Forest Service Management Of Historic Structures In Wilderness, Molly Michelle Ryan
Graduate Student Theses, Dissertations, & Professional Papers
Ryan, Molly M., M.S., 2009 Recreation Management The House That Smokey Built: The Forest Service Management of Historic Structures in Wilderness Committee Chair: Dr. Perry J. Brown Debates about the appropriateness of historic structures being present and preserved in wilderness are not new issues. In some form or another, this topic has surfaced, been debated, then simmered, but never properly addressed or resolved. The purposes of this paper are to identify management gaps within the Forest Service administration regarding the management of historic structures within wilderness areas and to recommend how these gaps can be filled. Data were collected from …
Restoration Of Native Plant Communities After Road Decommissioning: Effect Of Seed Mix And Soil Properties On Vegetative Establishment, Ashley Stevenson Grant
Restoration Of Native Plant Communities After Road Decommissioning: Effect Of Seed Mix And Soil Properties On Vegetative Establishment, Ashley Stevenson Grant
Graduate Student Theses, Dissertations, & Professional Papers
Road decommissioning is increasingly recognized as a critical first step in the restoration of terrestrial and aquatic habitats. In the past two years alone, the United States Congress has appropriated $90 million for road removal and watershed restoration. Despite this relatively large public investment, little is known about the efficacy or ecological effects of road-removal practices. One particularly important issue is the impact of post-road-removal revegetation strategies. This study evaluated 1) short-term effects of road decommissioning on plant community composition, 2) effects of seed-mix seed origin (native vs. nonnative), species diversity, and seeding density on vegetative establishment, and 3) impact …
An Uneasy Relationship: Combating A Global Threat Through International Trade, Freedom-Kai Phillips
An Uneasy Relationship: Combating A Global Threat Through International Trade, Freedom-Kai Phillips
Dalhousie Journal of Legal Studies
Climate change has traversed from the realm of environmental speculation to political policy. No longer is it an issue of lacking scientific evidence; rather it is now an issue of lacking political will. Courageously, the European Union, after gauging the international landscape for a multilateral accord and finding it wanting, has forged forward unilaterally to combat this pressing and substantial threat. In enacting the 20/20 by 2020 the EU has not only set a profound precedent for other developed nations, but has also placed a great burden on its domestic industries. This article examines the EU’s regulatory response, in light …
Of Mice And "Man": Patentability Of Genetic Material And The Protection Of Intellectual Property Rights, Adam Crane
Of Mice And "Man": Patentability Of Genetic Material And The Protection Of Intellectual Property Rights, Adam Crane
Dalhousie Journal of Legal Studies
The patenting of genetic material raises a host of concerns such as moral and ethical issues, the weakening of the utility requirement and the blockage of downstream research. This article examines the patentability of genetic material in the United States, Canada and the European Union. It discusses the advantages and disadvantages of the current patent system in relation to patents on genetic material. The article concludes with suggestions regarding the protection of intellectual property rights in light of growing concerns.
The Genesis Of Ribosome Structure: A Tale Of Two Proteins, Christopher James Woolstenhulme
The Genesis Of Ribosome Structure: A Tale Of Two Proteins, Christopher James Woolstenhulme
Graduate Student Theses, Dissertations, & Professional Papers
Living cells are dependent upon protein synthesis for virtually all cellular functions. The cellular machine responsible for protein synthesis, called the ribosome, is formed through the association of two unequally sized subunits, each composed of RNA and proteins. Proper assembly of each subunit is essential to ribosome function and therefore essential to the cellular life cycle. Previous studies focused on dissecting the assembly of the small ribosomal subunit (30S subunit) from E. coli have shown that 21 proteins sequentially assemble on the 16S rRNA at multiple nucleation sites. For the first time, we are able to monitor changes in the …
Social Values For Attributes At Risk From Wildfire In Northwest Montana, Derek Timothy O'Donnell
Social Values For Attributes At Risk From Wildfire In Northwest Montana, Derek Timothy O'Donnell
Graduate Student Theses, Dissertations, & Professional Papers
Annual fire management and suppression expenditures by the USDA Forest Service have dramatically increased in recent years, and exceeded $1 billion in the fire seasons of 2000, 2002, 2003, 2006, 2007, 2008, and 2009. These escalating management costs can largely be attributed to the Forest Services’ efforts to protect private property in the wildland-urban interface (WUI) at the expense of other market and non-market attributes. Due to increasing development within the WUI, climate change, and excessive fuel loading from decades of successful fire suppression, it is likely that fire suppression costs will continue to rise if current wildfire management priorities …
Fresh Voices, Volume 2, Cal Poly English Department
Fresh Voices, Volume 2, Cal Poly English Department
Fresh Voices: Composition at Cal Poly
No abstract provided.
Assessing Efforts To Reduce Sediment Impacts In Cottonwood Creek, Blackfoot Basin, Montana, Natalie Regina Marie Shapiro
Assessing Efforts To Reduce Sediment Impacts In Cottonwood Creek, Blackfoot Basin, Montana, Natalie Regina Marie Shapiro
Graduate Student Theses, Dissertations, & Professional Papers
This thesis assesses efforts to reduce sediment impacts in Cottonwood Creek, a tributary to the Blackfoot River in western Montana. The first objective evaluated trade-offs in stream crossing improvements regarding short-term sediment impacts versus long-term reductions in sediment load from road surface erosion and possible culvert failures. Suspended sediment and turbidity measurements were taken during spring snowmelt the year before and after a culvert replacement by a bridge, and during the replacement activity. The two study years were typical snowmelt years; i.e., 2- and 4-year return intervals, based on a ten-year USGS period of record. Culvert fill and road surface …
Assessing The Influence Of Parent/Guardian Variables On Select Type 2 Diabetes Risk Factors Among 10 To 14 Year Old Northern Plains Indian Youth, Christiana Lea Ricci
Assessing The Influence Of Parent/Guardian Variables On Select Type 2 Diabetes Risk Factors Among 10 To 14 Year Old Northern Plains Indian Youth, Christiana Lea Ricci
Graduate Student Theses, Dissertations, & Professional Papers
Type 2 diabetes (T2DM) is a growing health concern among American Indian populations. Many behavioral risk factors for T2DM are influenced by the family unit. Purpose: The purpose of this study was to assess the influence of certain parent/guardian variables on youth type 2 diabetes risk factors. Methods: The parents/guardians of 10-14 year old Northern Plains American Indian youth (n=37) were surveyed regarding their knowledge for physical activity and nutrition, support behaviors for physical activity and nutrition in their youth, and their individual physical activity and nutrition behaviors. Youth variables including physical activity behavior, dietary behavior, and body mass index …
Biogenesis, Assembly And Intracellular Trafficking Of Junin Arenavirus Envelope Glycoprotein Complex, Sudhakar Srinivasarao Agnihothram
Biogenesis, Assembly And Intracellular Trafficking Of Junin Arenavirus Envelope Glycoprotein Complex, Sudhakar Srinivasarao Agnihothram
Graduate Student Theses, Dissertations, & Professional Papers
An unusual feature in the arenavirus envelope glycoprotein complex (GP-C) is the presence of a myristoylated stable signal peptide (SSP) in addition to the receptor binding subunit G1 and the transmembrane fusion subunit G2. Genetic studies were employed to understand the structure-function of the GP-C complex, with emphasis on elucidating the role of SSP in arenavirus life cycle. We present genetic evidence that support the inclusion of G2 as a member of Class I viral fusion protein, where membrane fusion is mediated by six-helix bundle structure as in HIV and Influenza viruses. Furthermore, we have identified crucial roles for SSP …
An Investigation Of Spatial And Temporal Variability In Several Of Montana's Reference Streams: Working Toward A More Holistic Management Strategy, Kathryn Elizabeth Makarowski
An Investigation Of Spatial And Temporal Variability In Several Of Montana's Reference Streams: Working Toward A More Holistic Management Strategy, Kathryn Elizabeth Makarowski
Graduate Student Theses, Dissertations, & Professional Papers
Water temperature is a physical property that fundamentally affects stream ecology and is considered an important water quality parameter from scientific and legal view points. On global, catchment and reach scales, anthropogenic activities have substantially altered natural stream temperature regimes, impairing these systems’ ability to maintain ecological integrity. Thermal degradation often can be attributed to a variety of human activities, and global climate change, which has been accelerated by the demands of an exponentially expanding human population, will play a central role in defining stream temperature regimes in the future. Natural spatial and temporal variability in stream temperatures adds to …
Indoor/Ambient Residential Air Toxics Results In Rural Western Montana, Heidi Lee Underberg
Indoor/Ambient Residential Air Toxics Results In Rural Western Montana, Heidi Lee Underberg
Graduate Student Theses, Dissertations, & Professional Papers
Indoor and ambient concentrations of 21 volatile organic compounds (including 14 hazardous air pollutants) were measured in the homes of nearly 80 western Montana (Missoula) high school students as part of the ‘Air Toxics Under the Big Sky’ program during the 2004/2005 and 2005/2006 school years. Target analytes were measured using low flow air sampling pumps and sorbent tubes, with analysis of the exposed samples by thermal desorption/gas chromatography/mass spectrometry (TD/GC/MS). The results reported here present the findings of the first indoor/ambient air toxics monitoring program conducted in a semi-rural valley location located in the Northern Rocky Mountain/Western Montana region. …
Invisible Woman, Kristin Deanne Howe
Invisible Woman, Kristin Deanne Howe
Graduate Student Theses, Dissertations, & Professional Papers
The aim of this paper is to illuminate the ways in which working class women are invisible within the feminist and ecofeminist movements. Using the faces and forces of oppression as presented by Iris Marion Young and Hilde Lindemann, I show how the working class experiences oppression. I also show how oppression based on class differs from that based on gender and how these differences contribute to the invisibility of working class women within feminism. In the second section, I use Val Plumwood and Karen J. Warren’s versions of ecofeminist philosophy to show how working class women are again absent. …
Knowing The Natural World: The Construction Of Knowledge About Evolution In And Out Of The Classroom, Alison Emily Havard Perkins
Knowing The Natural World: The Construction Of Knowledge About Evolution In And Out Of The Classroom, Alison Emily Havard Perkins
Graduate Student Theses, Dissertations, & Professional Papers
Evolution is a central underlying concept to a significant number of discourses in civilized society, but the complexity of understanding basic tenets of this important theory is just now coming to light. Knowledge about evolution is constructed from both formal and "free-choice" opportunities, like television. Nature programs are commonly considered "educational" by definition, but research indicates the narratives often promote creationist ideas about this important process in biology. I explored how nature programs influenced knowledge construction about evolutionary theory using a combination of qualitative and quantitative approaches. Because misconceptions about evolution are common, I examined how students` conceptual ecologies changed …
Multivariate Statistical Analysis Of Three Crania Housed At The University Of Montana Physical Anthropology Lab, Bonny Marie Christy
Multivariate Statistical Analysis Of Three Crania Housed At The University Of Montana Physical Anthropology Lab, Bonny Marie Christy
Graduate Student Theses, Dissertations, & Professional Papers
The purpose of this research was to attempt to identify the population affinity of three crania (UMFC 103, 104, and 120), housed at the University of Montana Physical Anthropology Lab, using multivariate statistical analyses. A database collected by Dr. Hanihara and another collected by researchers at the University of Michigan were used for comparative purposes. Multiple populations from both databases were chosen so as to be representative of various Asian, African, Indian, and Native American populations. Two variations of each of the databases were used in the following statistical analyses: principal components analysis and discriminant function analysis. It was shown …
Noninvasive Genetic Sampling Revelas Black Bear Population Dynamics Driven By Changes In Food Productivity, Barbara Mccall
Noninvasive Genetic Sampling Revelas Black Bear Population Dynamics Driven By Changes In Food Productivity, Barbara Mccall
Graduate Student Theses, Dissertations, & Professional Papers
I conducted research on the demography of a harvested north Idaho black bear (Ursus americanus) population to determine the underlying dynamics of changes in population abundance, to determine how much these dynamics were driven by variation in food productivity, and to evaluate how these processes could influence inferences based on mark-recapture analysis. In cooperation with Idaho Department of Fish and Game and the USDA Forest Service, I used barb-wire corrals to collect black bear DNA during 2003-2006 in the Purcell Mountains of Idaho. We analyzed these DNA samples to determine the number of uniquely identified individuals in each year, Nu. …
Productivity-Diversity Relationships From Chemolithoautotrophically Based Sulfidic Karst Systems, Megan L. Porter, Annette Summers Engel, Thomas C. Kane, Brian K. Kinkle
Productivity-Diversity Relationships From Chemolithoautotrophically Based Sulfidic Karst Systems, Megan L. Porter, Annette Summers Engel, Thomas C. Kane, Brian K. Kinkle
International Journal of Speleology
Although ecosystems thriving in the absence of photosynthetic processes are no longer considered unique phenomena, we have yet to understand how these ecosystems are energetically sustained via chemosynthesis. Ecosystem energetics were measured in microbial mats from active sulfidic caves (Movile Cave, Romania; Frasassi Caves, Italy; Lower Kane Cave, Wyoming, USA; and Cesspool Cave, Virginia, USA) using radiotracer techniques. We also estimated bacterial diversity using 16S rRNA sequences to relate the productivity measurements to the composition of the microbial communities. All of the microbial communities investigated were dominated by chemolithoautotrophic productivity, with the highest rates from Movile Cave at 281 g …