This paper presents a novel microstrip low-pass filter with good performance. A complete detailed theoretical analysis for the proposed filter is given using equivalent circuit models. The proposed filter applying multiple cascaded modified radial stubs resonators provides a sharp cut off frequency response that has a 185 dB/GHz roll off rate. Also, U-shaped attenuators provide a wide stop-band...

background: snap-iv rating scale developed by swanson, nolan and pelham to diagnose attention deficit hyperactivity disorder (adhd). the aim of this study was determination of psychometrics specifications of this scale. methods: this was a methodological, applied and validity assessment study. one thousand students at 7 to 12 years of age in primary school in tehran city were selected by cluste...

The minimal-length paradigm, a possible implication of quantum gravity at low energies, is commonly understood as phenomenological modification Heisenberg's uncertainty relation. We show that this equivalent to cut-off in the space conjugate position representation, i.e. wave numbers, which does not necessarily correspond momentum space. This result generalized several dimensions and noncommuta...

The effect of membrane molecular weight cut off (MWCO) at three levels (10, 20 & 50 kD) on dynamic behavior of permeate flux (JP), hydraulic resistances (total hydraulic resistance, RT; reversible fouling resistance, Rrf; irreversible fouling resistance, Rif and membrane hydraulic resistance, Rm) and milk solutes rejection (protein, R<s...

Objective(s):The aim of this study was to determine whether technetium (99mTc) uptake is a relevant method for the differential diagnosis of Graves disease and subacute thyroiditis and calculate its cutoff value in case of its relevancy. Methods: A total of 69 patients, who were followed up (>3 months) in our hospital for thyrotoxi...

background : determining the validity of current median sensory nerve conduction techniques for diagnosis of carpal tunnel syndrome (cts). methods: eighty five patients with clinical diagnosis of cts were compared with the same number of healthy people. the validity of electrodiagnostic tests were compared in a case-control manner. these electrodiagnostictechniques included long-segment, short-...

background: polycystic ovarian syndrome (pcos) is a common endocrinopathy that accompanied with long term complications. the early diagnosis of this syndrome can prevent it. objective: the aim was to determine the role of anti-mullerian hormon (amh) in pcos diagnosis and to find cut off level of it. materials and methods: in this cross sectional study, 117 women between 20-40 years old were par...

Background: Placenta accreta is one of the known causes of maternal mortality and morbidity. If diagnosed before delivery, appropriate actions can be taken. The aim of this study was to investigate the role of scaling combination of risk factors in predicting placenta accreta spectrum (PAS). Methods: In this cross-sectional study, 120 pregnant women with two criteria and more of placenta previ...