نتایج جستجو برای: alas
تعداد نتایج: 1657 فیلتر نتایج به سال:
This study describes the lives of people around alas purwo national park buffer village that has local wisdom. Man with his intelligence can create an order in relation to God, fellow human beings, as well relationships nature. The most basic and urgent value reconstructing wisdom is correlation Tri Hita Karana implementation conservation rules. type research used descriptive qualitative case d...
1 By means of a microscopic valence force field model, a series of novel microscopic interface phonon modes are identified in shell quantum dots (SQDs) composed of a GaAs quantum dot of nanoscale embedded in an AlAs shell of a few atomic layers in thickness. In SQDs with such thin shells, the basic principle of the continuum dielectric model and the macroscopic dielectric function are not valid...
I t was demonst ra ted in a preceding s tudy from these laboratories tha t pat ients with the genetic liver disease acute in termi t ten t porphyr ia (AIP) 1 display a significant defect in the reductive t ransformation of prototy~)e steroid hormones such as testosterone and dehydroisoandrosterone (1). This defect is manifest by the marked preferential metabol ism of these hormones along the 5 ...
We investigate the impact of interface roughness (IFR) scattering on the performance of a series of the state-of-the-art GaAs/AlxGa1−xAs terahertz quantum cascade lasers (THz-QCLs) through a calculation of the induced inhomogeneous broadening and intersubband scattering rates. Our analysis includes two GaAs/Al0.15Ga0.85As THz-QCL devices with measured maximum operating temperatures at Tmax = 17...
Occupational kidney disease among Chinese herbalists exposed to herbs containing aristolochic acids.
OBJECTIVE Many Chinese herbs contain aristolochic acids (ALAs) which are nephrotoxic and carcinogenic. The objective of this study was to identify whether exposure to herbs containing ALAs increased the risk of kidney disease among Chinese herbalists. METHODS A nested case-control study was carried out on 6538 Chinese herbalists registered between 1985 and 1998. All incident cases of chronic ...
See " Ileal interposition surgery improves glucose and lipid metabolism and delays diabetes onset in the UCD-T2DM rat, " by Cummings BP, Strader AD, Stanhope KL, et al, on page 2437. T he prevalence of diabetes has increased worldwide mainly as a result of the obesity epidemic. 1 In 2007, 23.6 million people in the United States were affected by diabetes, with type 2 diabetes comprising the maj...
In this paper a resonant tunnelling quantum well infrared photodetector (RT-QWIP) is discussed. Each period of this photodetector structure comprises of a resonant tunnelling structure (AlAs/AlGaAs/AlAs) nearby a quantum well (AlGaAs/GaAs). In this photodetector, photocurrent is produced when an electron makes a transition from the ground state of the well to an excited state which is coupled t...
The Top-Hat hot electron light emission and lasing in semiconductor heterostructure (HELLISH)-vertical-cavity semiconductor optical amplifier (THH-VCSOA) is a bidirectional light-emitting and light-absorbing heterojunction device.The device contains 11 Ga0.35In0.65 N0.02As0.08/GaAs MQWs in its intrinsic active region which is enclosed between six pairs of AlAs/GaAs top distributed Bragg reflect...
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