نتایج جستجو برای: black stem

تعداد نتایج: 416896  

Journal: :Current 2021

Black Girls Dive Foundation (BGDF) was established to empower and inspire young girls explore their STEM (Science, Technology, Engineering Mathematics) identities through aquatic-based activities ocean stewardship. BGDF’s STREAMS program integrates recreation of SCUBA with scientific diving, science, explores ways have broader reach impact on identity interest for individuals who are historical...

Journal: :Applied sciences 2022

Brassicaceae plants are rich with antioxidant compounds that play a key role for human health. This study wants to characterize two Italian broccoli cultivars (Roya and Santee) black cabbage, evaluating the variation of antioxidants in different portion at developmental stage plants: broccoli, heads stems were sampled, while leaves seeds analyzed. Roja cultivar was also analyzed first second ha...

1997
Marcelo Schiffer

The purpose of this paper is to show that as a matter of principle, it is not appropriate to consider Schwarzschild black holes in thermal equilibrium with radiation because, even spinless and neutral holes undergo fluctuations of charge and angular momentum. Therefore, there will be a spread of these quantities around their zeromean values. We calculate these spreads for a black hole in therma...

Journal: :Social science research 2016
Gundi Knies Alita Nandi Lucinda Platt

Immigrants and ethnic minorities tend to have lower life satisfaction than majority populations. However, current understanding of the drivers of these gaps is limited. Using a rich, nationally representative data set with a large sample of ethnic minorities and matched neighbourhood characteristics, we test whether first and second generation minorities experience lower life satisfaction once ...

Journal: :In vivo 2011
Ralf Dittrich Laura Lotz Wolfgang Würfel Dieter Engelkamp Martina Döhler Theodoros Maltaris Inge Hoffmann Andreas Mueller Matthias W Beckmann Patricia G Oppelt

BACKGROUND/AIM Obtaining human embryonic stem cell lines has so far involved destroying the embryos. This has given rise to ethical concerns and is not permitted in most countries. This investigation tested whether removing multiple cells from blastocysts might allow continued embryonic development. MATERIALS AND METHODS A total of 40 blastocysts from a black mouse strain were biopsied. The m...

Journal: :Journal of economic entomology 2001
D S Richmond D J Shetlar

Studies examined the possibility that mixtures of endophytic perennial ryegrass and Kentucky bluegrass provide resistance against larvae of the black cutworm, Agrotis ipsilon (Hufnagel). We hypothesized that resistance against A. ipsilon in such stands would stem from the influence of Kentucky bluegrass on A. ipsilon growth and behavior rather than the influence of endophytic perennial rvegrass...

بوچانی, احمد , رهایی جهرمی , مهدی , طهماسبی, زهرا ,

Black bean genotypes have high resistance to the important pests and diseases of common bean. To evaluate the effectiveness of four genes in the direct (plant negatively effects on biology and reproduction of herbivore by its physical and biochemical barriers) and or indirect)by attracting natural enemies of herbivores(in black beans against two spotted spider mite, expression levels of these g...

In this letter, we consider static black hole in f(R) gravity.We take advantage from corrected entropy and temperature and investigate such black hole. Finally, we study the $ P - V $ critically and phase transition of corrected black hole with respect to entropy and temperature. Here also, we obtain the heat capacity for the static black hole in $ f(R) $ gravity. This calculation help us...

The aim of this study was to evaluate the toxicity of black cumin (Nigella sativa) extract on germination and growth of flixweed (Descurainia Sophia) seedlings grown in wheat (Triticum aestivum) fields, isolation and identification of important bioactive compounds of its aqueous extract. Two factorial experiments were conducted in a completely randomized design with three replications. In each ...

Journal: :Circulation 2005
Lionel H Opie Yackoob K Seedat

BACKGROUND Hypertension in sub-Saharan Africa is a widespread problem of immense economic importance because of its high prevalence in urban areas, its frequent underdiagnosis, and the severity of its complications. METHODS AND RESULTS We searched PubMed and relevant journals for words in the title of this article. Among the major problems in making headway toward better detection and treatme...

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