4,703 research outputs found
The upper normal limit of serum alanine aminotransferase in Golestan Province, Northeast Iran
Background: The objective of this study was to determine the upper normal limit of serum alanine aminotransferase level in a population-based study in Golestan Province, northeast Iran. Methods: From the randomly invited individuals (2,292), 698 out of the 916 males and 1,351 out of the 1,376 females participated in the study (participation rate: 76.2 and 98.1, respectively). One hundred and twenty-one participants were excluded due to positive hepatitis B surface antigen or hepatitis C virus antibody and/or drinking more than 20 grams of alcohol per day. A total of 1,928 participants (1300 females) were included. The upper normal limit of serum alanine aminotransferase level was defined as the 95th percentile. Results: The upper normal limit of serum alanine aminotransferase level in normal weight and nondiabetics was significantly lower than the total study group (36 versus 45 U/L). Serum alanine aminotransferase level was independently associated with male gender, body mass index, and diabetes mellitus (OR=2.05; 95Cl: 1.44 - 2.94, OR=2.76; 95Cl: 1.84 - 4.13, and OR=2.96; 95Cl: 1.56-5.61, respectively). Conclusion: Considering the lower calculated upper normal limit in normal weight nondiabetic participants in this study, we recommend setting new upper normal limit for serum alanine aminotransferase level, It seems reasonable to set upper normal limit for serum alanine aminotransferase level in males and females separately
The upper normal limit of serum alanine aminotransferase in Golestan Province, Northeast Iran
Background: The objective of this study was to determine the upper normal limit of serum alanine aminotransferase level in a population-based study in Golestan Province, northeast Iran. Methods: From the randomly invited individuals (2,292), 698 out of the 916 males and 1,351 out of the 1,376 females participated in the study (participation rate: 76.2 and 98.1, respectively). One hundred and twenty-one participants were excluded due to positive hepatitis B surface antigen or hepatitis C virus antibody and/or drinking more than 20 grams of alcohol per day. A total of 1,928 participants (1300 females) were included. The upper normal limit of serum alanine aminotransferase level was defined as the 95th percentile. Results: The upper normal limit of serum alanine aminotransferase level in normal weight and nondiabetics was significantly lower than the total study group (36 versus 45 U/L). Serum alanine aminotransferase level was independently associated with male gender, body mass index, and diabetes mellitus (OR=2.05; 95Cl: 1.44 - 2.94, OR=2.76; 95Cl: 1.84 - 4.13, and OR=2.96; 95Cl: 1.56-5.61, respectively). Conclusion: Considering the lower calculated upper normal limit in normal weight nondiabetic participants in this study, we recommend setting new upper normal limit for serum alanine aminotransferase level, It seems reasonable to set upper normal limit for serum alanine aminotransferase level in males and females separately
Pengaruh Ukuran Perusahaan, Leverage Dan Profitabilitas Perusahaan Terhadap Tingkat Pengungkapan Tanggungjawab Sosial (Pada Perusahaan Manufaktur Yang Terdaftar Pada Bursa Efek Indonesia (Bei) Periode 2008-2010)
Penelitian ini bertujuan untuk menganalisis pengaruh ukuran Perusahaan, tingkat leverage danprofitabilitas terhadap tingkat pengungkapan tanggung jawab sosial Perusahaan Populasi dalam penelitian ini adalah Perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia tahun 2008-2010 sebanyak 137 Perusahaan. Pemilihan sampel dilakukan dengan menggunakan metode Simple Random samling, ada 58 sample . Analisis data untuk pengujian hipotesis menggunakan analisis regresi linier berganda. Hasil penelitian ini menunjukkan bahwa ukuran Perusahaan, tingkat leverage danprofitabilitas secara simultan terbukti berpengaruh terhadap tingkat pengungkapan tanggung jawab sosial Perusahaan. Secara parsial ukuran Perusahaan, tingkat leverage,berpengaruh positif signifikan terhadap tingkat pengungkapan tanggung jawab sosial Perusahaan, sedangkan tingkat profitabilitas tidak berpengaruh terhadap tingkat pengungkapan tanggung jawab social. Hubungan antara ukuran Perusahaan, tingkat leverage danprofitabilitas dengan tingkat pengungkapan tanggung jawab sosial Perusahaan termasuk dalam kategori kecil, karena masih pada tingkat 31,8 %.
 
Interpolation Approach to Hamiltonian-varying Quantum Systems and the Adiabatic Theorem
Quantum control could be implemented by varying the system Hamiltonian.
According to adiabatic theorem, a slowly changing Hamiltonian can approximately
keep the system at the ground state during the evolution if the initial state
is a ground state. In this paper we consider this process as an interpolation
between the initial and final Hamiltonians. We use the mean value of a single
operator to measure the distance between the final state and the ideal ground
state. This measure could be taken as the error of adiabatic approximation. We
prove under certain conditions, this error can be precisely estimated for an
arbitrarily given interpolating function. This error estimation could be used
as guideline to induce adiabatic evolution. According to our calculation, the
adiabatic approximation error is not proportional to the average speed of the
variation of the system Hamiltonian and the inverse of the energy gaps in many
cases. In particular, we apply this analysis to an example on which the
applicability of the adiabatic theorem is questionable.Comment: 12 pages, to appear in EPJ Quantum Technolog
Arbitrary Waveform Generator for Quantum Information Processing with Trapped Ions
Atomic ions confined in multi-electrode traps have been proposed as a basis
for scalable quantum information processing. This scheme involves transporting
ions between spatially distinct locations by use of time-varying electric
potentials combined with laser or microwave pulses for quantum logic in
specific locations. We report the development of a fast multi-channel arbitrary
waveform generator for applying the time-varying electric potentials used for
transport and for shaping quantum logic pulses. The generator is based on a
field-programmable gate array controlled ensemble of 16-bit digital-to-analog
converters with an update frequency of 50 MHz and an output range of 10 V.
The update rate of the waveform generator is much faster than relevant motional
frequencies of the confined ions in our experiments, allowing diabatic control
of the ion motion. Numerous pre-loaded sets of time-varying voltages can be
selected with 40 ns latency conditioned on real-time signals. Here we describe
the device and demonstrate some of its uses in ion-based quantum information
experiments, including speed-up of ion transport and the shaping of laser and
microwave pulses
Study of antibiotic resistance pattern and incidence of pathogenic genes of mgtC, spi4R, agfA, invE/A and ttrC in Salmonella infantis isolated from clinical specimens
Background: The importance of the health of red meat, poultry and eggs in human nutrition is very high. One of the factors that jeopardize the health of poultry food products is the bacterial family of Enterobacteriaceae, especially Salmonella. The aim of this study was to detect pathogenic genes in Salmonella infectious bacteria isolated from stool specimens using the multiple PCR assay. Materials and Methods: Selective and specific media for isolation of Salmonella were used. Primary isolation was carried out using Peptone water, Rapaport, selenite cysteine, MacConky agar and xylose-lysine deoxycholate agar. To confirm the diagnosis, biochemical tests including TSI, urea, endodontic, and citrate were used. The Salmonella Polyvalent Kit was used to determine Salmonella groups and mgtC, spi4R, agfA, invE/A and ttrC genes were studied in 60 samples by the multiple PCR method. Results: The results showed that all samples had 2 genes mgtC and ttrC, and none of the samples showed resistance to cefepime. Of the 60 samples of Salmonella, none were resistant to cefepime and ceftriaxone; 38.8 of the samples were resistant to amoxicillin, 53 to erythromycin and 38.3 to sulfamethoxazole. Conclusion: It can be concluded that cefepime is the best selective drug for the treatment of Salmonella infections. Identification and validation of genes in the region's bacteria can play a role in the broad epidemiological examination, antibiotic resistance, vaccine production, level of virulence, prevention and treatment. Also, evaluation of these genes in the samples for their virulence index is very important
Attracting shallow donors: Hydrogen passivation in (Al,Ga,In)-doped ZnO
The hydrogen interstitial and the substitutional Al_Zn, Ga_Zn and In_Zn are
all shallow donors in ZnO and lead to n-type conductivity. Although shallow
donors are expected to repel each other, we show by first principles
calculations that in ZnO these shallow donor impurities attract and form a
complex, leading to a donor level deep in the band gap. This puts a limit on
the n-type conductivity of (Al,Ga,In)-doped ZnO in the presence of hydrogen.Comment: 4 pages, 5 figure
An audit of sturgeon reproduction in Iran over the years 1998 -- 2002
Iranian Fisheries Institutes in the north of the country are involved in the reproduction, culture and release of five species of sturgeon fingerlings into the Caspian Sea. The species are Acipenser persicus, A. guldenstadti, A. nudiventris and A. stellatus and Huso huso. Shahid Beheshti Fisheries Centre as the first commercial hatchery started its activities in 1972 in Rasht, Guilan Province of Iran. The centre achieved a production ceiling of 21.6 million fingerlings in 1997 and increased it to 24.5 million fingerlings in 1998. It is anticipated that the centre will achieve a threshold of 45 millions fingerlings in the next few years. During 1997-2002, the centre has increased its extent from 377 hectares to 887 hectares For Huso huso production, 17 specimens were caught in 1998, of which 10 were injected that produced 1.08 million fingerlings and in 2002, the number of caught and injected Huso huso were 29 and 21 respectively, that resulted in production and release of 2.4 million fingerlings. A number of 1062 A. persicus breeders were caught in 1998 of which 581 individuals were injected with hypophysis extract resulting in production and release of 22.5 million fingerlings. Of 538 injected individuals from among a total 802 breeder fish caught in 2002, a number of 12.3 million fingerlings were produced and released into the sea. The catch for Acipenser stellatus in 1998 was 193 breeders that produced 623000 fingerlings. In 2002, the catch increased to 290 breeders, of which 67 received injections to produce 1.3 million fingerlings. A total number of 0.67 million fingerlings of A. guldenstadti was produced in 1998 which was increased to 1.78 millions in 2002. For Acipenser nudiventris, the number of fingerlings produced in 1998 was 0.4 which was increased to 1.56 millions in 2002
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