Neutron scattering studies of industry-relevant materials: connecting microscopic behavior to applied properties

Certain systems of oxides, nitrides and carbides have been recognized as the basic components of advanced materials for applications as engineering and electronic ceramics, catalysts, sensors, etc. under extreme environments. An understanding of the basic atomic and electronic properties of these systems will benefit enormously the industrial development, of new materials featuring tailored properties. We present an overview of neutron-scattering studies of the crystal phases, microstructure, phonon and magnetic excitations of key materials including rare-earth phosphates, phosphate glasses, nanostructured metal oxides, as well as silicon nitride and silicon carbide ceramics. A close collaboration among neutron-scattering experimentation, molecular-dynamics simulation and material synthesis is emphasized

Microwave mobilities of holes in p-type geranium

Hall mobilities of an n-type (GN l) and a p-type (GP 2) germanium single crystal were measured at a microwave frequency of 9 Gc/ sec from 80 °K to 300 °K. A bimodal rectangular cavity designed by Nishina was used in the present investigation. The microwave circuit was nearly the same as that described by Nishina except that the microwave signal was modulated by 1000 cycle per second square-wave signal. The microwave mobilities measured (with sample size correction factor of 0. 423 for n-type and 0. 687 for p-type germanium) were compared with the corresponding d. c. Hall mobilities. For n-type germanium, the discrepancy between the d. c. and microwave mobilities was believed to be predominatly due to the E: -1/2 dependence of the relaxation time (acoustical mode scattering). For p-type germanium, a large deviation occurred at low temperatures and was in agreement with the results obtained by Hambleton et al. and by Watanabe. This result might be explained qualitatively as a combined effect of lattice and impurity scattering, particularly the effect of impurity scattering on the light mass holes

Compact accelerator-driven neutron sources

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Mechanistic and pathological study of the genesis, growth, and rupture of abdominal aortic aneurysms

Postprint (published version

Update in Antiepidermal Growth Factor Receptor Therapy in the Management of Metastatic Colorectal Cancer

The approval of anti-epidermal growth factor receptor (EGFR) monoclonal antibodies in the treatment of metastatic colorectal cancer (CRC) has expanded the armamentarium against this disease. This paper will review the historical progress and recent clinical developments of anti-EGFR therapies in the treatment of metastatic CRC. Novel strategies of targeting the EGFR pathway to improve efficacy as well as ongoing research in identifying specific molecular predictors of response will be discussed

Hubungan Antara Asupan Zat Gizi Makro Dengan Obesitas Pada Wanita Usia Subur Peserta Jamkesmas Di Puskesmas Wawonasa Kecamatan Singkil Manado

: Nowadays, incident of obesity also can be found in poverty population with low educational level. This condition affect on the rising consumption of high-fat food and energy-dense sugar in this population. The purpose of this research is to know the correlation of macro nutrients intake and obesity at the women of childbearing age as Jamkesmas member in Wawonasa, Singkil, Manado. This research is using cross–sectional design and has taking sample in Wawonasa clinic, Singkil, Manado for a month, that is from November till December 2012. Sampling method is purposive sampling with 77 subject who had been measured for body height and body weight and also had been interviewed using recall method 24th hours to take the data for macro nutrients intake those are carbohydrate, protein, and fat that had been consumed one day before. The data from the research was being analyzed with chi–square analysis test with α = 0,05. The result of analysis show there is no relation of carbohydrate intake and obesity (p=0,980), no relation of protein intake and obesity (p=0,602), and there is no-significant relation of fat intake and obesity (p=0,265). The conclusion from this research is no relation of macro nutrients intake and obesity at women of childbearing age as Jamkesmas member in Wawonasa clinic, Singkil, Manado

Control Management and Business Performances: the Malaysian Family SMEs Perspectives

This study examined the relationship between control management and family business performance in the Malaysian context. It has two objectives, the first being to determine the relationship of organizational credit control policy and procedures, employee development and motivation, and intelligence collection systems to subsequent collection reports in Malaysian family SMEs. The second objective is to investigate the moderating effect of participation in decision-making and work effort towards innovation and business performance. This is a descriptive study involving 90 senior executives employed in 90 Malaysian family SMEs/firms. A correlation analysis from this study confirmed previous researchers’ observations that high-level organizational commitment to credit control management is linked to improvements in business performance. The results suggest that three components – credit policy, employee development, and intelligence collection systems – are the most important predictors for the efficiency and effectiveness of credit control management.   &nbsp

Microcircuit modeling and simulation beyond Ohm's law

Circuit theory textbooks rely heavily on the applicability of Ohms law, which collapses as electronic components reach micro-and nanoscale dimensions. Circuit analysis is examined in the regime where the applied voltage V is greater than the critical voltage $Vc, which triggers the nonlinear behavior. The critical voltage is infinity in the Ohmic regime, but is as low as a fraction of a volt when linear currentvoltage characteristics become sublinear and the resistance surges due to current saturation effects. For two resistors of the same Ohmic values but of differing lengths, the shorter resistor is more susceptible to this effect. In addition, the power consumed in this regime is a linear function of voltage as compared to quadratic behavior in the Ohmic regime. Several possible applications are suggested