نتایج جستجو برای: 96h

تعداد نتایج: 339  

Ali Shabestani Monfared Amrollah Mostafazadeh, Hamid Reza Khorasani Hosein Nattaj Mahsa Rahmani Monireh Golpour Saeeid Abedian

Background: The human leukocyte antigen (HLA) matching between organ donor and recipient is an acceptable strategy in clinical transplantation since 1964. However, in bone marrow transplantation, finding matched donors is often problematic. Thus new method for down regulation of HLA can be an alternative strategy to solve this problem. Objective: To examine the effect of serum starvation on HLA...

حسین خارا ذبیح ا... پژند شعبانعلی نظامی فریبا کشوردوست

در سال 1382 اثرات، دو سم ساترن 50% (علف کش) و مالاتیون 57 درصد (حشره کش) بر روی بچه ماهیان تاسماهی ایرانی (Acipenser persicus، 1897) 3-1 گرمی مورد بررسی قرار گرفت. به همین منظور سمیت حاد این سموم بر مرگ و میر بچه ماهیان تاسماهی ایرانی جهت تعیین غلظت کشنده طی چهار روز (LC50 96h) مورد آزمایش قرار گرفت. آزمایش براساس روش استاندارد و به صورت ساکن انجام شد. در طول آزمایش پارامترهای آب از قبیل PH و س...

Journal: :Journal of Materials Engineering and Performance 2021

The repair of bone defect needs bionic scaffolds that meet biomechanical and bio-structural requirements. triply periodic minimal surface (TPMS) scaffold, with a radial gradient porosity distribution mimicking natural bone, is potential high-performance biomaterial for orthopedic implants. In this paper, TPMS various porosities, which resembled the graded structure human were prepared by select...

هدف از این مطالعه تعیین غلظت کشنده (LC50 96h)، سولفات مس بر روی بچه ماهی قزل‌آلای رنگین­کمان (با میانگین وزن 39/0±0/10 گرم) است. آزمایش سمیت حاد به روش ساکن (Static) و بر اساس دستورالعمل استاندارد O.E.C.D. به مدت 96 ساعت روی بچه ماهی قزل­آلای رنگین‌کمان انجام شد. در آزمایش محدوده کشندگی سولفات مس روی بچه ماهی قزل­آلای رنگین‌کمان mg/L 1000-1 تعیین شد. در طی مدت زمان 24 الی 96 ساعت با افزایش غلظت...

Journal: :Projectus 2023

O cenário tecnológico atual remete a indústria integração denominada Cyber Physical System, considerando interface entre o universo físico de produção e conectividade em redes no ambiente virtual. Sensores diversas finalidades, pulverizados por todo fabril, permitem que controladores digitais monitores computadorizados mapeiem registrem todas as atividades fabris, gerando um enorme volume dados...

Journal: :E3S web of conferences 2022

Azole fungicides are widely used to control diseases and insect pests of vegetables, fruits flowers because their good antibacterial effect regulating plant growth. However, extensive use inevitably enters the water environment with rainfall surface runoff, which leads potential harm aquatic organisms. At present, research on biological toxicity azole mainly focuses single compounds, such as Pa...

Journal: :Aquatic toxicology 2016
Som Niyogi Tamzin A Blewett Trevor Gallagher Sandra Fehsenfeld Chris M Wood

Waterborne zinc (Zn) is known to cause toxicity to freshwater animals primarily by disrupting calcium (Ca) homeostasis during acute exposure, but its effects in marine and estuarine animals are not well characterized. The present study investigated the effects of salinity on short-term Zn accumulation and sub-lethal toxicity in the euryhaline green shore crab, Carcinus maenas. The kinetic and p...

Journal: :Ciencia en Desarrollo 2022

Las garrapatas han afectado negativamente la producción bovina, provocando grandes pérdidas económicas; debido al uso indiscriminado de productos químicos desarrollado resistencia, obligando a búsqueda alternativas control, presentándose interés en investigar las propiedades acaricidas especies vegetales, el objetivo del estudió fue determinar eficacia extracto natural Phytolacca bogotensis y A...

2016

Animal nutrition industry demands for phytases with high specific activity and stability under high temperature conditions (feed pellet production) and under acidic conditions (monogastric animals), for this reason continues to stimulate the search for new enzyme sources [1]. Most of scientific work has been focused on Aspergillus spp. phytases due to their biochemical properties found [2]. An ...

Journal: :Reproduction, fertility, and development 2014
Catherine N Sargus-Patino Elane C Wright Sarah A Plautz Jeremy R Miles Jeff L Vallet Angela K Pannier

Between Days 10 and 12 of gestation, porcine embryos undergo a dramatic morphological change, known as elongation, with a corresponding increase in oestrogen production that triggers maternal recognition of pregnancy. Elongation deficiencies contribute to embryonic loss, but exact mechanisms of elongation are poorly understood due to the lack of an effective in vitro culture system. Our objecti...

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