نتایج جستجو برای: na ultra

تعداد نتایج: 324331  

2005
N. P. Bigelow

We report the first observation of a non-dipole transition in an ultra-cold atomic vapor. We excite the 3P-4P electric quadrupole (E2) transition in Na confined in a Magneto-Optical Trap(MOT), and demonstrate its application to high-resolution spectroscopy by making the first measurement of the hyperfine structure of the 4P1/2 level and extracting the magnetic dipole constant A = 30.6 ± 0.1 MHz...

2011
Yassien M. Temerk Mohamed S. Ibrahim Mohammed Kotb

Devido à atividade farmacológica dos flavonóides, na presente investigação, foi desenvolvido um método eficiente e econômico para a determinação de traços dos mesmos. Neste contexto, o comportamento interfacial de três flavonóides, 3-hidroxiflavona (3HF), morin e hesperidina (Hesp) foi estudado em eletrodo de gota pendente de mercúrio (HMDE) por voltametria ac (fase sensível) e voltametria cícl...

2002
Sonia Fátima da Silva Moreira Marair Gracio Ferreira Sartori Edmund Chada Baracat Geraldo Rodrigues de Lima

Objetivo: estudar a mobilidade do colo vesical e a força da musculatura perineal em mulheres com e sem incontinência urinária de esforço, no menacme e na pós-menopausa. Métodos: foram avaliadas 61 pacientes, das quais 31 estavam no menacme, sendo 17 com incontinência urinária de esforço (IUE) e 14 continentes, e 30 estavam na pós-menopausa, das quais 15 com e 15 sem IUE. Todas as incontinentes ...

Journal: :Journal of sports sciences 2012
Beat Knechtle Patrizia Knechtle Andrea Wirth Christoph Alexander Rüst Thomas Rosemann

In 219 recreational male runners, we investigated changes in body mass, total body water, haematocrit, plasma sodium concentration ([Na(+)]), and urine specific gravity as well as fluid intake during a 100-km ultra-marathon. The athletes lost 1.9 kg (s = 1.4) of body mass, equal to 2.5% (s = 1.8) of body mass (P < 0.001), 0.7 kg (s = 1.0) of predicted skeletal muscle mass (P < 0.001), 0.2 kg (s...

Journal: :The journal of contemporary dental practice 2016
Khalid H Al-Samadani

INTRODUCTION To assess the impact of using preventive mouthwash agents on the surface hardness of various resins composites. MATERIALS AND METHODS Hundred specimens were prepared from five types of composite resin material in a Teflon mold. Five specimens from each type of restorative materials (Herculite XRV Ultra, Estelite Σ Quick, Z Hermack, Versa Comp Sultan, and Empress Direct IPS) were ...

Journal: :Radiologia Brasileira 2004

2012
Henryk Matusiewicz Ewa Stanisz

Nanopartículas de Ag suportadas em TiO2 (Ag-TiO2) foram usadas como catalisador na geração de vapor frio induzida por radiação UV com ácido fórmico, acoplado à absorção atômica para determinação do mercúrio total em amostras analíticas. A atividade redutora de Ag-TiO2 foi comparada com dois catalisadores semicondutores: TiO2 não modificado e ZnO. O efeito do tipo de catalisador, sua concentraçã...

Journal: :Annals of botany 2009
Heikham Evelin Rupam Kapoor Bhoopander Giri

BACKGROUND Salt stress has become a major threat to plant growth and productivity. Arbuscular mycorrhizal fungi colonize plant root systems and modulate plant growth in various ways. SCOPE This review addresses the significance of arbuscular mycorrhiza in alleviation of salt stress and their beneficial effects on plant growth and productivity. It also focuses on recent progress in unravelling...

Journal: :The Kobe journal of medical sciences 2016
Widya Wasityastuti Yoshihiko Yano Dewiyani Indah Widasari Laura Navika Yamani Neneng Ratnasari Didik Setyo Heriyanto Rina Okada Toshihito Tanahashi Yoshiki Murakami Takeshi Azuma Yoshitake Hayashi

A nucleos(t)ide analog (NA) is the common antiviral drug available for directly treating hepatitis B virus (HBV) infection. However, its application has led to the emergence of NA-resistant mutations mostly in a conserved region of the reverse transcriptase domain of HBV polymerase. Harboring NA-resistant mutations decreases drug effectiveness and increases the frequency of end-stage liver dise...

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