نتایج جستجو برای: protective structures
تعداد نتایج: 567344 فیلتر نتایج به سال:
A new ionone glycoside, frehmaglutoside I (1), and three new rhemaneolignans A-C (2-4) were isolated from the 95% EtOH extract of the roots of Rehmannia glutinosa. Their structures were determined by extensive spectroscopic (UV, IR, HR-ESI-MS, 1D and 2D NMR) analyses. In addition, these compounds were evaluated for their protective effects on cardiocytes impaired by doxorubicin in H9c2 cells. A...
background & aim: homalium letestui pellegr (flacourtiaceae) used traditionally by the ibibios of southern nigeria to treat stomach ulcer, malaria and other inflammatory diseases was evaluated for antiulcer properties. experimental: the effects of ethanol stem extract of h. letestui (200 – 600 mg/kg) and fractions (aqueous and dichloromethane, 400 mg/kg) on experimentally induced ulcer wer...
To investigate the influence of antibody structure and specificity on antibody efficacy against Streptococcus pneumoniae, human monospecific antibodies (MAbs) to serotype 3 pneumococcal capsular polysaccharide (PPS-3) were generated from transgenic mice reconstituted with human immunoglobulin loci (XenoMouse mice) vaccinated with a PPS-3-tetanus toxoid conjugate and their molecular genetic stru...
N-doped double-carbon-layer protective hierarchical structures decorating SnS nanotubes (N-DCSNs) as a remarkable LIBs anode showing high-capacity retention and long-term stability properties due to the special structure of double carbon layer.
This paper presents a conceptual framework of the protective effects of community involvement in HIV/AIDS-related groups and organizations for HIV sexual risk behavior among gay and bisexual men. The framework delineates hypotheses for future research, and provides a guide for prevention programs based on the active and direct involvement of participants, particularly communities of color. The ...
abstract in aggregate, active forms of reactive silica with mineral names are sometimes associated with sand and gravel in concrete mixture. alkali hydroxides originated from alkalis in the cement or other resources form an alkaline silica gel with this reactive silica which becomes swallowed and expanded during time causing damage to concrete. there have been growing researches on alkaline r...
in the present study, protective effect of teucrium polium l. (labiatae) extract on acetaminophen-induced hepatotoxicity was investigated in mice. animals were divided into six groups, each group consist of 8 mice. group one as the negative control group received normal saline, while group two received only crude extract of t. polium l. (500 mg/kg) for five days and group three as the positive ...
objective: the purpose of this study was to identify affecting factors on students’ environmental protection behavior (sipb). methods: statistical population of this research consisted of 1480 students in alborz agricultural technical higher education centers. a stratified random sampling method was used to select 145 student applying cochran's formula. the main tool to collect data was a resea...
This work presents a detailed, comprehensive study of new structural design protective devices with circular cross-section (CS) (protective cables) for protecting equipment against ultra-wideband (UWB) pulses. Multiconductor structures 2–5 conductors and without shield are considered. The disadvantages using symmetric configurations cables shown. Their simulation, multivariate analysis, optimiz...
Despite the possibilities offered by new approaches in design and advances in materials and manufacturing methods, few items of Personal Protective Equipment (PPE) used in sport have seen significant change for many decades. A major reason for this is the tradition and conservative attitudes associated with many sports, although the absence of appropriate tools and techniques to assist the desi...
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