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Functionally Similar Species Confer Greater Resistance To Invasion: Implications For Grassland Restoration, Stephen L. Young, Jacob N. Barney, Guy B. Kyser, Tracy S. Jones, Joseph M. Ditomaso

West Central Research and Extension Center, North Platte

Plant community functional composition can be manipulated in restored ecosystems to reduce the establishment potential of invading species. This study was designed to compare invasion resistance among communities with species functionally similar or dissimilar to yellow starthistle (Centaurea solstitialis), a late-season annual. A field experiment was conducted in the Central Valley of California with six experimental plant communities that included (1) six early-season native annual forbs (AF); (2) five late-season native perennials and one summer annual forb (NP); (3) a combination of three early-season native annual forbs and three late-season native perennials (FP); (4) six early-season non-native annual …

Heritability And Variance Component Estimates Of Meat Quality In Japanese Quail (Coturnix Coturnix Japonica), Yakut Gevrekçi̇, İsmai̇l Oğuz, Mustafa Akşi̇t, Alper Önenç, Demi̇r Özdemi̇r, Özge Altan

Turkish Journal of Veterinary & Animal Sciences

A comparison of 3 methods for variance component estimation to compute the heritability of meat quality characteristics (body weight, breast meat weight, breast yield, l, a, b, c, h, and ph) was performed using the methods of maximum likelihood (ML), restricted maximum likelihood (REML), and minimum variance quadratic unbiased estimator (MIVQUE). The parent population was set up at random from a closed population of Japanese quail (Coturnix coturnix japonica). Selection was not applied for any productive characteristics and no special care was taken to avoid inbreeding. After 12-h feed withdrawal, the birds were weighed and slaughtered at 35 days of …

Effect Of Docking And Diet Energy On Carcass Fat Characteristics In Fat-Tailed Baluchian Sheep, Ali̇ Moharrery

Turkish Journal of Veterinary & Animal Sciences

Effects of docking on carcass fat characteristics were studied in fat-tailed sheep. Male lambs were randomly divided into 2 groups. One group was docked after birth using rubber rings, and the tails of the other group were left intact (control). After weaning, 20 lambs from each group were divided into 2 subgroups; one subgroup was fed with a normal energy diet (10.25 MJ/kg ME) and the other one with a high-energy diet (11.42 MJ/kg ME) for 84 days. At the end of the fattening period, 28 lambs were slaughtered for determination of warm carcass weight (WCW) and other carcass characteristics. …

Concentration Of Products Of Nitric Oxide Oxidation And Some Vitamins In Sheep With Naturally Acquired Babesiosis, Handan Mert, İbrahi̇m Yörük, Yeter Değer, Ni̇hat Mert, Semi̇ha Dede, Fatmagül Yur

Turkish Journal of Veterinary & Animal Sciences

The aim of the present study was to determine serum concentrations of the products of nitric oxide oxidation (nitrate and nitrite) and some vitamins (retinol acetate, \alpha- and \delta-tocopherol, and vitamin D_3) in sheep naturally infected with Babesia ovis. The investigation included 30 infected and 10 control sheep. Serum \alpha -tocopherol levels were significantly lower (P < 0.05), and nitrate and nitrite concentrations were significantly higher (P < 0.05) in infected animals than in controls. It is thought that the elevated nitrate and nitrite levels of the sheep infected with babesiosis were due to the result of damage caused by Babesia. On the other hand, a significant decrease was observed in \alpha -tocopherol levels in sheep with babesiosis because of damage and pathophysiological changes to erythrocytes.

Serum Adenosine Deaminase Activity In Domestic Animals: Reference Values, Nuri̇ Altuğ, Nazmi̇ Yüksek, Zahi̇d Ağaoğlu, İhsan Keleş

Turkish Journal of Veterinary & Animal Sciences

This study was aimed to determine normal serum adenosine deaminase (ADA) activity in domestic animals in both sexes and that were considered healthy on the basis of clinical and laboratory examinations. In this study, 262 non-pregnant animals of both sexes, belonging to 5 species [cattle (n = 50), sheep (n = 65), goat (n = 52), dog (n = 55), and cat (n = 40)] were used. Serum total ADA and ADA1 isoenzyme activities were found to be 6.34 ± 0.31 IU/l and 6.34 ± 0.31 IU/l in cattle, 7.57 ± 0.30 IU/l and 7.31 ± 0.47 IU/l in sheep, …

Encephalitic Sarcocystosis And Its Prophylactic Treatment In Sheep, Özlem Özmen, Şi̇ma Şahi̇nduran, Mehmet Haligür, Bayram Ali̇ Yukari, Gerry M. Dorrestein

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to examine the clinical and pathological findings in sheep naturally infected with severe encephalitic sarcocystosis and to evaluate the prophylactic effect of amprolium on the disease. From a flock of approximately 350 animals, 10 sheep were referred to the Veterinary Faculty Clinic with neurological symptoms that developed during the previous 2 weeks. These 10 sheep were clinically and pathologically examined, and the remaining animals in the flock without neurological symptoms were treated. All 10 animals were hypothermic, weak, and unable to stand. Complete blood count and serum biochemical analysis revealed mild leukocytosis, hypoglycemia, hyponatremia, …

Medical And Surgical Treatment Of Chylothorax In A Dog With Right-Sided Heart Failure, Hakan Salci, Zeki̇ Yilmaz, A. Sami̇ Bayram, Ebru Yalçin, Meti̇n Kaya

Turkish Journal of Veterinary & Animal Sciences

Chylothorax due to right-sided heart failure was diagnosed in a 3.5-year-old, male Rottweiler, based on the clinical, radiological, and echocardiographic examinations, and serum biochemical test results (pleural fluid cytology and triglyceride levels of the serum and pleural fluid). En bloc ligation of thoracic duct along with its branches and pleural abrasion were performed after the failure of the initial medical management including pleural drainage via tube thoracostomy, and enalapril, furosemide, and low-fat diet (Prescription Diet Canine r/d, Hill´s Pet Product, Topeka, Kansas, USA). Combination medical and surgical therapy resulted in an excellent postoperative outcome. Six months after surgery the dog …

Multicentric Intrahepatic Biliary Cystadenoma In A Dog, Ahmet Akkoç, İ. Taci̇ Cangül, M. Özgür Özyi̇ği̇t

Turkish Journal of Veterinary & Animal Sciences

This report describes a case of multicentric intrahepatic biliary cystadenoma observed in a 13-year-old, male, Irish setter dog. The dog had a history of chronic inappetence, weight loss, intermittent icterus, and diarrhoea. In the ultrasonographic examination of the abdominal organs, 5 spherical masses were found in various liver lobes. The largest mass was 12 cm in diameter and was located on the quadrate lobe. It had spongy consistency and had several cystic structures, 3 mm-2.5 cm in diameter, on the cut surface. While this mass bulged through the normal outline of the liver, smaller masses were engraved within the liver …

Emerging Policy And Practice Issues (2008), Steven L. Schooner, David J. Berteau

GW Law Faculty Publications & Other Works

This paper, presented at the West Government Contracts Year in Review Conference (covering 2008), attempts to identify the key trends and issues for 2009 in U.S. federal procurement. In large part, the paper focuses upon the challenges facing the incoming Obama administration, which faces a number of interrelated, critical, systemic challenges that pervade the acquisition landscape. Federal procurement spending has exploded in this decade. As a result - and, in addition to decisions made during the 1990's - the Government is heavily outsourced, dependent upon contractors to an extent - in degree and in type - that makes many uncomfortable. …

Contraception: Securing Feminism’S Promise, Naomi R. Cahn, June Carbone

GW Law Faculty Publications & Other Works

This paper traces the history of attempts to restrict contraception, the legal events securing widespread access to contraception and their importance to a generation of college-aged women, the short-lived nature of the consensus that produced them, and the potential of the issue to serve as a rallying point for a revitalized feminism. It explores the hypocrisy of a system that, whatever its values, makes reproductive autonomy readily available for the affluent and the sophisticated and increasingly beyond the reach of the most vulnerable. Finally, it considers the potential of contraception as a reframing device, capable of exposing the hypocrisy of …

Titanium Dioxide Nanoparticles Induce Oxidative Stress And Dna-Adduct Formation But Not Dna-Breakage In Human Lung Cells, Kunal Bhattacharya, Maria Davoren, Jens Boertz, Roel P.F. Schins, Eik Hoffmann, Elke Dopp

Articles

Titanium dioxide (TiO2), also known as titanium (IV) oxide or anatase, is the naturally occurring oxide of titanium. It is also one of the most commercially used form. To date, no parameter has been set for the average ambient air concentration of TiO2 nanoparticles (NP) by any regulatory agency. Previously conducted studies had established these nanoparticles to be mainly non-cyto- and -genotoxic, although they had been found to generate free radicals both acellularly (specially through photocatalytic activity) and intracellularly. The present study determines the role of TiO2-NP (anatase, ∅ < 100 nm) using several parameters such as cyto- and genotoxicity, DNA-adduct formation and generation of free radicals following its uptake by human lung cells in vitro. For comparison, iron containing nanoparticles (hematite, Fe2O3, ∅ < 100 nm) were used. The results of this study showed that both types of NP were located in the cytosol near the nucleus. No particles were found inside the nucleus, in mitochondria or ribosomes. Human lung fibroblasts (IMR-90) were more sensitive regarding cyto- and genotoxic effects caused by the NP than human bronchial epithelial cells (BEAS-2B). In contrast to hematite NP, TiO2-NP did not induce DNA-breakage measured by the Comet-assay in both cell types. Generation of reactive oxygen species (ROS) was measured acellularly (without any photocatalytic activity) as well as intracellularly for both types of particles, however, the iron-containing NP needed special reducing conditions before pronounced radical generation. A high level of DNA adduct formation (8-OHdG) was observed in IMR-90 cells exposed to TiO2-NP, but not in cells exposed to hematite NP. Our study demonstrates different modes of action for TiO2- and Fe2O3-NP. Whereas TiO2-NP were able to generate elevated amounts of free radicals, which induced indirect genotoxicity mainly by DNA-adduct formation, Fe2O3-NP were clastogenic (induction of DNA-breakage) and required reducing conditions for radical formation.

Biochemical Changes Of Antioxidant Enzymes In Common Carp (Cyprinus Carpio L.) After Heavy Metal Exposure, Rajamanickam Vinodhini, Muthuswamy Narayanan

Turkish Journal of Veterinary & Animal Sciences

Accidental industrial spills may lead to a high concentration of toxic metals in the aquatic environment, as well as affecting freshwater ecosystems with acute and chronic toxicity. Of all aquatic species, fish are particularly sensitive to waterborne contamination and are recognized as bioindicators for water quality monitoring. The objective of the present study was to evaluate the biochemical changes of the enzymatic defense systems in fresh water fish, the common carp (Cyprinus carpio L.), when they are exposed to a heavy metal contaminated aquatic system. The fish were systematically exposed to heavy metal solutions such as cadmium, lead, nickel, and …

Serum Zinc Concentrations In Dogs With Microsporum Canis Dermatophytosis: A Pilot Study, Kerem Ural, Mehmet Çağri Karakurum, Özkan Duru, Cenker Çağri Cingi, Ali̇ Evren Haydardedeoğlu

Turkish Journal of Veterinary & Animal Sciences

Zinc deficiency may result in alopecia, erythema, crusting, scaling, parakeratosis, inflammation of the skin, and impaired wound healing. Zinc deficiency also may impair the immune response against microorganisms and lead to fungal infections such as trichophytosis. The present study included male and female dogs (n = 7) of various breeds, ages, and diagnosed with Microsporum canis dermatophytosis and 4 healthy dogs used as the control group. The influence of dermatophytosis on serum zinc concentrations in dogs was investigated. Wood's lamp examination, fungal cultures, and additionally biopsy specimen were used to confirm the diagnosis and rule out other causes of the …

Postnatal Expression Pattern Of Ppar\Gamma Gene In Pigs, Junfang Jiang, Yongqing Jiang, Zhigang Zhu, Zirong Xu

Turkish Journal of Veterinary & Animal Sciences

PPAR\gamma is a member of the peroxisome proliferator-activated receptor subfamily of nuclear hormone receptors. PPAR\gamma has been showed to be a key regulator of adipocyte differentiation and lipid metabolism. The pattern of PPAR\gamma gene expression in different growth stages and its relation with adipose deposition in pigs is studied. Fifteen female Duroc×Landrace×Yorkshire pigs in 5 groups with 3 pigs in each grup, at live weight of 1, 30, 50, 70, and 90 kg were used to study the developmental gene expression of PPAR\gamma in subcutaneous adipose tissue by means of semi-quantitative RT-PCR. The results showed the PPAR\gamma mRNA levels of …

Effects Of Feeding Frequency On Nutrient Digestibility And Growth Performance Of Rainbow Trout (Oncorhynchus Mykiss) Fed A High Lipid Diet, Serap Ustaoğlu Tiril, Fi̇kret Alagi̇l

Turkish Journal of Veterinary & Animal Sciences

The effect of feeding frequency on nutrient digestibility and growth performance was investigated in rainbow trout (Oncorhynchus mykiss) fed a high lipid diet. The experimental diet contained 25.2% crude lipid and 40.7% crude protein. Two feeding frequencies were tested: 2 meals per day (Group I) and 6 meals per day (Group II). Fish were fed a restricted daily ration (1.5% of body weight) divided into equal meals. t the end of the experiment, the weight gain in Group I and II was 84.6% and 90.1%, respectively. There was no statistically significant difference between groups. The crude lipid and protein digestibility …

Effects Of Oocyte Source On The Developmental Competence Of In Vitro Matured Goat Oocytes Fertilized By The Intracytoplasmic Sperm Injection Technique, Abu Nasar Md. Aminoor Rahman, Ramli Bin Abdullah, Wan Embong Wan-Khadijah

Turkish Journal of Veterinary & Animal Sciences

This study evaluated the effects of oocyte source on in vitro maturation (IVM) and embryo developmental competence in goats by the intracytoplasmic sperm injection (ICSI) technique. Oocytes were obtained either by laparoscopic ovum pick-up (LOPU) or by slicing of abattoir ovaries. The donor does used for LOPU were superstimulated and their estrus was synchronized. Recovered oocytes from both sources were cultured in microdrops of IVM medium in the presence of CO2 (5%) at 38.5 °C in a CO2 incubator for 27 h. The ICSI was performed with immobilized sperm on the lid of a culture dish (35 mm) under an …

Fatty Acid Profiles Of Microdiets For Marine Fish In Turkey, Mustafa Yildiz

Turkish Journal of Veterinary & Animal Sciences

Lipid contents and fatty acid profiles in the commercial microdiets for farming marine fish species were determined. Twenty microdiet samples were taken from marine fish farms on the Aegean region of Turkey throughout 2006-2007. Of the 20 microdiet samples, 5 were produced in Turkey and 15 were imported. The fatty acid analysis of the microdiets was made by gas-liquid chromatography using helium as the carrier gas. The lipid levels of the microdiets produced in Turkey by different companies ranged from 9.5 ± 0.05% to 11.6 ± 0.14% (P < 0.05). In contrast, the lipid levels of imported microdiets were between 10.6 ± 0.20% and 17.2 ± 0.14% (P < 0.05). n-3 polyunsaturated fatty acids (n-3 PUFA) levels in the microdiets ranged from 7.1 ± 0.03% to 24.8 ± 0.03% of total fatty acids (P < 0.05). Similarly, n-3 highly unsaturated fatty acid (n-3 HUFA) levels in the microdiets ranged from 6.1 ± 0.01% to 22.8 ± 0.02% of total fatty acids (P < 0.05). n-3 highly unsaturated fatty acids (n-3 HUFA) levels in the microdiets were found between 0.6 ± 0.00% and 3.6 ± 0.01% of dry weight of diets (P < 0.05). Docosahexaenoic acid (DHA) levels of these microdiets were between 0.3 ± 0.00% and 2.0 ± 0.03% of the dry weight of diets (P < 0.05). Eicosapentaenoic acid (EPA) levels in the dry weight of diets were between 0.3 ± 0.01% and 2.2 ± 0.01% (P < 0.05). Arachidonic acid (ArA) levels in the microdiets were also found between 0.3 ± 0.01% and 0.9 ± 0.01% of total fatty acids (P < 0.05). The value of DHA/EPA ratios in the microdiets ranged from 0.5 ± 0.01 to 2.0 ± 0.01 (P > 0.05). The results showed that the total lipid or n-3 and n-6 …

Surgical Correction Of Small Colon Faecalith In A Dare-Shuri Foal, Behrooz Nikahval, Nasser Vesal, Mohsen Ghane

Turkish Journal of Veterinary & Animal Sciences

A 6-month-old male Dare-Shuri foal was admitted for acute abdominal pain unresponsive to medical treatment. The foal was anxious and exhibiting signs of abdominal pain. The foal had not defecated in the previous 5 days and severe abdominal distension was present. Based on clinical signs and the results of the diagnostic work-up, gastrointestinal obstruction was suspected. Midline exploratory celiotomy revealed a faecalith in the small colon. A longitudinal incision was made through the antimesenteric border of the involved intestine and an approximately 350 g mass mostly composed of dried roughage was removed. The day after surgery, intestinal sounds were detectable; …

Study On Eimeria And Cryptosporidium Infections In Sheep And Goats At Elfora Export Abattoir, Debre-Zeit, Ethiopia, Dinka Ayana, Getachew Tilahun, Abebe Wossene

Turkish Journal of Veterinary & Animal Sciences

A cross sectional study on Eimeria and Cryptosporidium infections in small ruminants at ELFORA export abattoir was conducted from October 2005 to February 2006. In this study, attempts were made to determine the prevalence and intensity of Eimeria and Cryptosporidium infections in sheep and goats. Moreover, potential risk factors associated with the infections and the species of Eimeria and Cryptosporidium incriminated in the infections were identified. A total of 384 fecal samples were collected and examined by flotation technique using Sheather's sugar solution to detect the oocysts of Eimeria and Cryptosporiudium species. For Cryptosporidium infection, fecal samples were also examined …

Effects Of Addition Of Vitamin B_{12} To The Extender On Post-Thaw Motility, Acrosome Morphology, And Plasma Membrane Integrity In Bull Semen, Jian Hong Hu, Qing Wang Li, Yu-Lin Chen, Zhong Liang Jiang, Yong Hong Jia, Li Qiang Wang, Bo Bo Ou

Turkish Journal of Veterinary & Animal Sciences

To investigate the effects of supplementation of vitamin B_{12} on bovine sperm post-thaw quality, vitamin B_{12} was added at the concentrations of 1.25, 2.50, 3.75, and 5.00 mg/mL to bovine semen cryoprotective medium. The results indicated that the motility and VSL, VCL, STR, and VAP values of sperm supplemented with 2.50 mg/mL vitamin B_{12} were significantly higher than those of other concentrations (P < 0.05). No significant difference was observed for LIN and ALH values and the percentage of grade a spermatozoa between the extenders containing 2.50 mg/mL and 3.75 mg/mL vitamin B_{12} (P > 0.05). The percentages of acrosome-intact and plasma membrane-intact spermatozoa were significantly improved (P < 0.05) by supplementing with 2.50 mg/mL vitamin B_{12}. With all parameters measured, the concentration of 2.50 mg/mL vitamin B_{12} showed the best results on the quality of bovine semen in freezing-thawing. In conclusion, the addition of 2.50 mg/mL vitamin B_{12} to the extender improved the bovine frozen semen quality.

A Comparison Of The Clinical Effects Associated With Xylazine, Ketamine, And A Xylazine-Ketamine Cocktail In Pigeons (Columba Livia), Uzma Farid Durrani, Muhammad Ashraf, Muhammad A. Khan

Turkish Journal of Veterinary & Animal Sciences

A study was conducted to compare the clinical effects of xylazine, ketamine, and a cocktail of them in pigeons (Columbia livia). For this study 15 adult and healthy pigeons were divided into 3 equal groups: A - xylazine (16 mg/kg), B - ketamine (60 mg/kg) and C - xylazine-ketamine cocktail (8 mg/kg + 30 mg/kg, respectively). All treatments were administered intramuscularly. Onset of action was smooth with a mean time of onset of 13.4 ± 2.78 min, 11 ± 1.49 min, and 1.6 ± 0.51 min, respectively. In group A and B light sedation and a light plane of anaesthesia …

Laparoscopic Sterilization Vs. Open Method Sterilization In Dogs: A Comparison Of Two Techniques, Anburaja Mahalingam, Naveen Kumar, Swapan K. Maiti, Ashok K. Sharma, Umesh Dimri, Meena Kataria

Turkish Journal of Veterinary & Animal Sciences

Ten clinically healthy, adult male dogs randomly equally divided into 2 groups (I and II) were subjected to laparoscopic sterilization and open method castration under xylazine-ketamine anesthesia. In group I laparoscopic vasectomy by cauterization and cutting of the vas deferens was performed and in group II conventional open castration by the pre-scrotal approach was done. Insufflation of the abdominal cavity was achieved with CO_2 (2 L/min) at 10 mmHg pressure gradient. Two ports were needed to carry out the operation. Clinical observations revealed no significant changes. Differential leukocyte count (DLC) revealed significant neutrophilia and comparative lymphopenia on the 3rd postoperative …

Structural Aberration In Ha Associated With Adaptation Of Human Influenza A H3n2 Virus In Embryonated Chicken Eggs, Viroj Wiwanitkit

Turkish Journal of Veterinary & Animal Sciences

Molecular changes associated with adaptation of human influenza A virus in embryonated chicken eggs are reported: 4 amino acid substitutions occurred in HA (G186V, S219F, V226I, V309I). These substitutions allowed binding to SAalpha2,3Gal- and SAalpha2,6Gal-containing receptors, conferred SAalpha2,3Gal specificity, and preserved antigenicity. Here, the author reports the result of protein secondary structure predictions of the adaption from its primary sequence using the NNPREDICT server. Comparing the classical HA of H3N2, the adaptation has additional helices and strands and these identified structural changes should be the explanation for the reported binding and antigenicity changes.

Ileal Leiomyoma In A Captive Zebra (Equus Burchelli), Rahşan Yilmaz, Ahmet Akkoç, M. Özgür Özyi̇ği̇t

Turkish Journal of Veterinary & Animal Sciences

In the present study, an ileal leiomyoma encountered in a captive zebra (Equus burchelli) was reported. A 29-year-old, female zebra was found dead in the Bursa zoo. According to the referring veterinarian the most prominent clinical signs were intermittent colic (responsive to analgesics) and constipation. At post mortem examination, abdomen was severely distended. A firm, multilobular, well vascularized and encapsulated tumoural mass, 12 cm in diameter, embedded into the proximal part of the ileum wall, and protruded from the serosal surface was found. The cut section of the mass had whorled appearance, pale yellow to white in colour, and had …

Job Related Stress And The Ability To Transition Among Life Roles For Police Officers, Stacy Dawn Seay

Master's Theses

No abstract provided.

The Interplay Between The Expression And Functions Of Wnt13 Isoforms During Apoptosis In Bovine Aortic Endothelial Cells, Tao Tang

University of Kentucky Doctoral Dissertations

Wnt proteins are crucial for development/homeostasis by controlling cell fate including apoptosis (Moon RT et al. 1997). Three humanWnt13 isoforms were identified: the secreted Wnt13A, mitochondrial Wnt13B, and nuclear Wnt13C forms; and nuclear Wnt13 had an increased sensitivity to LPS/TNF-induced apoptosis in primary endothelial cells (EC); both Wnt13B and C mRNA contain two start codons (AUG+1 and +74), but the same protein encoded from AUG+74 by Wnt13C was expressed lower than Wnt13B (Struewing IT et al.2006). We hypothesize that during EC apoptosis, the nuclear Wnt13C expression is regulated translationally; nuclear Wnt13 favors apoptosis through regulating the activity/expression of apoptosis-related factors; …

Trinexapac-Ethyl And Overseeding Effects On Shear Strength And Tolerance To Simulated Traffic Of Four Bermudagrass Cultivars Grown On A Sand-Based System, Michael Todd Deaton

University of Kentucky Master's Theses

Bermudagrass (Cynodon dactylon L.) is often used for athletic fields due to its wear tolerance and recuperative ability. Studies were conducted May 2007 through November 2008 in Lexington, Kentucky. The cultivars ‘Quickstand’, ‘Tifway’, ‘Riviera’, and ‘Yukon’ grown in a sand-based medium were used to investigate differences in wear tolerance and shear strength. Trinexapac-ethyl (TE) was applied at label rates and frequencies or untreated. Overseeding treatments were perennial ryegrass (Lolium perenne L.) at 0, 612, and 1225 kg PLS ha^-1. Traffic treatments were applied with a Brinkman traffic simulator 3 d wk-1 August through October. Shear tests …

Electrical And Mechanical Properties Of Mwcnt Filled Conductive Adhesives On Lead Free Surface Finished Pcb's., Keerthi Varma Mantena

University of Kentucky Master's Theses

Electrically conductive adhesives (ECA) are an alternative to tin/lead solders for attaching Surface Mount Devices (SMD) in electronic assemblies. ECAs are mixtures of a polymer binder (for adhesion) and conductive filler (for electrical conductivity). They bring more conductivity, higher strength, less weight and longer durability than metal alloys. ECAs can offer numerous advantages such as fewer processing steps, lower processing temperature and fine pitch capability. Multi walled carbon nanotubes (MWCNT) were used as conductive fillers in this research because of their novel electronic and mechanical properties.

The high aspect ratio of the nanotubes makes it possible to percolate at low …

Mental Health Care At The Margins: A Critical Ethnography Of Psychological Practice In An Inner City Mental Health Setting, Katy Sampson

Electronic Theses and Dissertations

Within the past several decades, the field of psychology has attempted to improve psychological services for a greater diversity of people. However, despite these attempts, research continues to document a "gap" when it comes to mental health care services for marginalized populations. Various studies have addressed the issue of this "gap" in mental health care; however, most adhere to positivist assumptions regarding sociocultural aspects of experience, understanding culture and identity as immutable qualities existing within individuals, rather than as an interpersonal phenomenon that is negotiated between and among people and institutions. As a result of these assumptions, many past studies …

The Characteristics And Functions Of Humor In Psychotherapy: A Qualitative Study, Joshua Gregson

Electronic Theses and Dissertations

Literature on humor in psychotherapy has been strongly influenced by a debate on whether therapists should engage in humor with clients. Many authors urge caution and are suspicious of humor's use by therapists. Others argue that humor is helpful in therapy and illustrate its uses through clinical evidence, mainly anecdotes from the author's experience. The debate on humor's admissibility in psychotherapy treats humor as optional, and thereby ignores its centrality in human relating and its inevitability in the therapeutic relationship.

Since humor inevitably arises in psychotherapy, it is important for therapists to know typical manifestations and meanings of humor in …