Expression of matrix metalloproteinases in feline vaccine site-associated sarcomas     

Sorensen KC  Kitchell BE  Schaeffer DJ  Mardis PE 《American journal of veterinary research》2004,65(3):373-379

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Exogenous L‐lactate clearance in adult horses     

Pedro De Pedro DVM  Maureen A. McMichael DVM  DACVECC  Levent Dirikolu DVM  PhD  Kara M. Lascola DVM  MS  DACVIM  Stuart C. Clark‐Price DVM  MS  DACVIM  DACVA  Raymond C. Boston BSc  MSc  PhD 《Journal of Veterinary Emergency and Critical Care》2012,22(5):564-572

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Effects of afforestation on microbial biomass C and respiration in eroded soils of Turkey     

Omer Kara  Emre Babur  Lokman Altun  Mustafa Seyis 《Journal of Sustainable Forestry》2013,32(6):385-396

ABSTRACT

Soil erosion is a major socioeconomic and environmental problem in Turkey. Almost 86% of the land in Turkey has suffered various degrees of soil erosion. The objective of this study was to determine whether differences in tree species affect soil characteristics and microbial activity in degraded soils. Results from this study showed that organic C (C_org) was highest in the black locust soil at 0–20 cm depth and lowest in the bare land. Microbial biomass C (C_mic) increased in the order black locust > Scotch pine > bare land at two soil depths. One-way ANOVA demonstrated that afforested soils contain significantly higher microbial biomass C than those in the bare land soils. Microbial quotient (C_mic/C_org) of soils are positively influenced by afforestation as the bare land soils exhibited lower microbial quotient than the associated Scotch pine and black locust soils. Microbial communities in black locust soils were energetically more efficient—had a lower metabolic quotient (qCO₂)—with a higher C_mic/C_org compared to those in Scotch pine soils. However, the microbial quotient in our study was still below range and cannot reach equilibrium again 15 yr after afforestation. Restoration of degraded lands could be a long-term process from microbial activity in the observed regions.  相似文献   

Demography and population projection of <Emphasis Type="Italic">Myzus persicae</Emphasis> (Sulz.) (Hemiptera: Aphididae) on five pepper (<Emphasis Type="Italic">Capsicum annuum</Emphasis> L.) cultivars     

Mehmet Salih Özgökçe  Hsin Chi  Remzi Atlıhan  Hilmi Kara 《Phytoparasitica》2018,46(2):153-167

The green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae), is a major pest of pepper. In this study, we collected data on the development, survival, fecundity, and proportion of apterous and alate forms of green peach aphid reared on five commercial pepper cultivars (Amiral, Erciyes, Mert, Mertcan, and Naz) at 25?±?1°C, 60?±?5% RH, and a photoperiod of 16:8 (L:D) h. We analyzed the life history raw data by using the age-stage, two-sex life table. The shortest development time (6.66 days) and highest fecundity (62.68 individuals) occurred on the Erciyes cultivar. The highest intrinsic rate of increase (r?=?0.332 d^?1), finite rate of increase (λ?=?1.394 d^?1), net reproductive rate (R₀?=?62.7 offspring) and shortest mean generation time (T?=?12.45 d) also occurred on the Erciyes cultivar; while the lower fitness occurred on the Amiral, Mertcan and Naz cultivars. Our results compared differences in the population growth rate of M. persicae on different pepper cultivars. This information will be useful to individuals working in pest management programs particularly those involving M. persicae.  相似文献   

Effect of polypropylene fiber cross sectional shapes on some structural/mechanical fiber properties and compressibility behaviour of plain knitted fabrics     

Sukran Kara  Umit Halis Erdogan  Nilufer Erdem 《Fibers and Polymers》2012,13(6):790-794

Synthetic fibers are generally produced with circular cross sectional shapes. Other cross sectional shaped fibers such as trilobal, triangular, hollow and pentagonal fibers are also produced to improve some properties of fibers and fabrics such as lustre, handle, wicking rate, strength, stiffness and bulkiness. In this research we aimed to investigate compressional behaviours of fabrics knitted from polypropylene fibers having three different cross sectional shapes; namely circular, trilobal and triangular. Morphological, structural and mechanical properties of produced fibers were evaluated by using scanning electron microscopy, X-ray diffractometry, differential scanning calorimetry and tensile tester, respectively. In terms of structural and mechanical properties, no significant differences were found related to fiber cross sectional shapes. Then, plain knitted farbrics were produced and compressional properties of these fabrics were investigated. Fabrics knitted from trilobal fibers showed the highest compressibility properties and it is followed by fabrics which are produced from triangular and circular fibers.  相似文献   

Betanodavirus‐associated mortalities of adult wild groupers Epinephelus marginatus (Lowe) and Epinephelus costae (Steindachner) in Algeria     

H M Kara  L Chaoui  F Derbal  R Zaidi  C de Boisséson  M Baud  L Bigarré 《Journal of fish diseases》2014,37(3):273-278

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Effects of heat treatment on some properties of MDF (medium-density fiberboard)     

Saim Ates  Hasimet R. Kara  Cag˘ri Olgun  Osman E. Ozkan 《Wood material science & engineering》2017,12(3):158-164

This work investigated some mechanical, physical and free formaldehyde emission properties of heat-treated MDF. For this purpose, MDF panels were subjected to varying heat treatment temperatures (155°C, 165°C and 175°C), durations (2.5?h., 3.5?h. and 4.5?h.) and waiting times after hot pressing (30?min., 120?min. and 600?min). Thickness swelling (TS), water absorption (WA), free formaldehyde emission (FFE), bending strength (BS), modulus of elasticity (MOE), tensile strength perpendicular to fibers (TSPF) for treated and untreated samples were tested and evaluated statistically. Consequently, after the heat treatment values of tensile strength, bending strength and modulus of elasticity were almost negatively affected relatively, but the thickness swelling and water absorption and quantities of free formaldehyde were improved positively of MDF samples.  相似文献   

Trauma‐associated acute mesenteric ischemia in a dog     

Todd R. Hamilton VMD  Christopher W. Thacher DVM  DACVS  Kara M. Forsee DVM  Reid K. Nakamura DVM  DACVECC 《Journal of Veterinary Emergency and Critical Care》2010,20(6):595-600

Objective – To describe the successful management of acute mesenteric ischemia (AMI) in a dog. Case Summary – An 11‐year‐old, 21.4 kg, male castrated Rough‐Coated Collie was referred for evaluation of an acute abdomen following sustaining injuries in a vehicular accident. On presentation to the hospital, clinicopathologic assessments were within normal limits and distended intestinal loops were evident on abdominal palpation. Plain and contrast radiography demonstrated diffusely distended gas‐filled intestinal loops with a delayed barium transit time. Emergency surgical exploration was performed. The cecum and the proximal two‐thirds of the colon were dark purple to black in color and there were no palpable pulses in the mesenteric arteries associated with the cecum and colon. The cecum and proximal two‐thirds of the colon were resected and an ileocolic anastomosis was performed. The dog recovered well from surgery and was discharged 2 days later. Histopathologic examination was consistent with AMI. New or Unique Information Provided – AMI is uncommonly reported in human medicine and is a rare complication from even minor blunt abdominal trauma. This is the first reported case of trauma‐associated AMI in a dog.  相似文献   

Kinetic, Isotherm and Thermodynamic Analysis on Adsorption of Cr(VI) Ions from Aqueous Solutions by Synthesis and Characterization of Magnetic-Poly(divinylbenzene-vinylimidazole) Microbeads     

Kara A  Demirbel E 《Water, air, and soil pollution》2012,223(5):2387-2403

The magnetic-poly(divinylbenzene-1-vinylimidazole) [m-poly(DVB-VIM)] microbeads (average diameter 53-212?μm) were synthesized and characterized; their use as adsorbent in removal of Cr(VI) ions from aqueous solutions was investigated. The m-poly(DVB-VIM) microbeads were prepared by copolymerizing of divinylbenzene (DVB) with 1-vinylimidazole (VIM). The m-poly(DVB-VIM) microbeads were characterized by N(2) adsorption/desorption isotherms, ESR, elemental analysis, scanning electron microscope (SEM) and swelling studies. At fixed solid/solution ratio the various factors affecting adsorption of Cr(VI) ions from aqueous solutions such as pH, initial concentration, contact time and temperature were analyzed. Langmuir, Freundlich and Dubinin-Radushkvich isotherms were used as the model adsorption equilibrium data. Langmuir isotherm model was the most adequate. The pseudo-first-order, pseudo-second-order, Ritch-second-order and intraparticle diffusion models were used to describe the adsorption kinetics. The apparent activation energy was found to be 5.024?kJ?mol(-1), which is characteristic of a chemically controlled reaction. The experimental data fitted to pseudo-second-order kinetic. The study of temperature effect was quantified by calculating various thermodynamic parameters such as Gibbs free energy, enthalpy and entropy changes. The thermodynamic parameters obtained indicated the endothermic nature of adsorption of Cr(VI) ions. Morever, after the use in adsorption, the m-poly(DVB-VIM) microbeads with paramagnetic property were separeted via the applied magnetic force. The magnetic beads could be desorbed up to about 97% by treating with 1.0?M NaOH. These features make the m-poly(DVB-VIM) microbeads a potential candidate for support of Cr(VI) ions removal under magnetic field.  相似文献   

Fruit Characteristics and Detachment Parameters of Sour Cherry (Prunus cerasus L. cv. ‘Kütahya’) as Affected by Various Maturity Stages     

Rafet Aslantas  Ilker Angin  Mustafa Gokalp Boydas  Gursel Ozkan  Mazhar Kara 《Erwerbs-Obstbau》2016,58(2):127-134

The variability in fruit maturity and quality has difficulties in determining the optimal harvesting maturity. Therefore, maturity stage in harvest is crucial for both fruit quality and minimizing the fruit detachment force. This study investigates the fruit characteristics and detachment parameters of sour cherry (cv. ‘Kütahya’) in terms of different maturity stages. Sour cherries were grouped into five different maturity stages by observation according to their color and dimensions. The fruit mass and dimension increased as a function of maturity stage; however, the fruit mass remained almost same after the 4th stage. The highest values of total soluble solids and titrable acid contents of sour cherry were gained in the last stage of maturity. The value of chroma of fruit outer color was higher 50?% than that of fruit inner color in the 1st maturity stage. However, it was almost same in the 5th stage of maturity. Increasing fruit maturity caused a decrease in the values of fruit detachment force ranging from 4.25 to 1.78 N, giving the coefficient of determination of 0.947. Similarly, the ratio of fruit detachment force to fruit mass, detachment stress, and specific energy decreased as the fruit maturity increased. The harvest of sour cherry is done only once in the optimum time to decrease the harvest cost. Minimizing the variability in fruit maturity throughout the tree is essential for gaining the maximum profit and lower fruit detachment force in this convenient time. Results of this study indicated that 3rd?5th maturity stages were critical for harvest. In order to attain the maximum poundage per tree and color for the market the most of the fruits should be in these stages. Therefore, appropriate management strategies that could homogenize the maturity throughout the tree should be applied.  相似文献