نتایج جستجو برای: cut off frequency

تعداد نتایج: 704618  

Ahmad Ahmadi Amin Saburi Gholamreza Bagheri Mohammad Torkaman

Background: Hypoglycemia is one of the most common neonatal disorders, associated with severe complications. There has been a great deal of controversy regarding the definition and screening of hypoglycemia. Therefore, in this study, we aimed to determine a cut-off value for blood glucose level in glucometer readings. Methods: This cross-sectional study was conducted on 238 newborns at risk of ...

Fatemeh Rajab Dizavandi Fatemeh Shoaee Hossein Kareshki, Masoudeh Babakhanian Masumeh Ghazanfarpour, Mohammad Reza Najarzadegan Parisa Razmjouei Soudabeh Nekouhi Ziba Mohsenpour

Background: There are few psychometric studies addressing sensitivity and specificity of the Persian version of the Edinburgh Postnatal Depression Scale (EPDS). Therefore, there is a need for future studies to identify the best cut-off point for EPDS score. The present study is aimed at assessing the validity of the EPDS among Iranian mothers. Materia...

ارجمندکرمانی, حمید, فاطمی, سیدجلیل‌الدین,

Muon-electron ratio and median zenith angle of Extensive Air Shower (EAS) is calculated for the energy range of 1019 to bigger than 1020 eV. The results are compared with the simulation work of Capdevielle et al [1]. The results show a good correspondence with proton primary composition up to energy level of 7×1019 eV. In higher energies above GZK cut off, a considerable increase is calculated ...

Ali Salmassi, Andreas Gerd Schmutzler Anupama Deenadayal Christel Eckmann-Scholz Jurgen Hedderich Liselotte Mettler Soeren von Otte Walter Jonat

Background Evaluation of anti-mullerian hormone (AMH) cut-off levels in assisted reproductive technology (ART) as predictive factor for individualization of stimulation protocols and to avoid ovarian hyperstimulation syndrome (OHSS). MaterialsAndMethods In a retrospective study, 177 infertile patients were assessed for AMH in serum and follicular fluid (FF) on the day of follicular puncture (FP...

Nuclear level densities and spin cut-off factors have been deduced for nuclei in the mass region 24‹A‹63,from a microscopic theory, which includes nuclear pairing interaction. Single particle levels for both Seeger and Nilsson potentials were used in the calcdations. Level densities extracted from the theory are compared with their conesponding experimental values, It is found that the overall...

Journal: :iranian journal of public health 0
a soltani r hafezi a keshtkar z hamidi *b larijani

dxl of calcaneus is a portable method for bmd. this study determined a cut off point for dxl in osteoporosis diagnosis. in 510 healthy postmenopausal women, bmd of axial regions with dxa (dpx-md, ge,lunar corp, madison, wi) and heel with dxl (demeteck- sweden), measured. the agreement of two methods and cut off point for dxl in defining osteoporosis, obtained. dxa found osteoporosis in 34.3% an...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم بهزیستی و توانبخشی 1379

دراین پژوهش که با هدف کلی تعیین حساسیت ‏‎sensitivity‎‏ و ویژگی ‏‎specificity‎‏ که دو شاخص مهم اعتبار آزمون می باشند و پایایی ‏‎reliability‎‏ و آزمون سرند ‏‎mmse‎‏ در سرند سالمندان مبتلا به دمانس صورت گرفت.دراین پژوهش جهت برآورد حساسیت و ویژگی آزمون ‏‎mmse‎‏ از روش تعیین نقاط برش ‏‎cut off point‎‏‎‏ استفاده شد و پایایی آن با استفاده از ضریب همبستگی پیرسون محاسبه گردید. نتایج پایایی باز آزمون 73/...

2014
Pengxing Yi Kang Zhang Yahui Li Xuming Zhang

The electromagnetic acoustic transducer (EMAT), a non-contact NDT tool with large lift-off, is becoming an attractive method for detecting the cracks in the metal parts. However, the lift-off of the transducer has a direct effect on the feature that is used to characterize the defects. A detailed investigation on the relationship between the feature and the lift-off of the EMAT is crucial in th...

Sarroud Dam is located in the north of Khorasan Razavi Province in the city of Kalat. Being located in a fault zone, it is necessary to inject the cut-off wall. Using remote sensing techniques, geographic information system, Landsat satellite imagery and field observations in this research, it was specified that the dam has been located within the range of the Sarroud Fault. According to this, ...

2009
B. D. Kong S. Paul M. Buongiorno Nardelli K. W. Kim A. A. Balandin D. L. Nika

In a recent preprint Kong et al, arXiv: 0902.0642v1 (2009) claimed to calculate the lattice thermal conductivity of single and bi-layer graphene „from first principles”. The main findings were that the Umklapp-limited thermal conductivity is only slightly higher than that of high-quality bulk graphite along the basal plane, and that it does not strongly depend on the number of atomic layers. He...

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