Relative strength of thermal and electrical spin currents in a ferromagnetic tunnel contact on a semiconductor

2015 ◽  
Vol 92 (5) ◽  
Author(s):  
K.-R. Jeon ◽  
H. Saito ◽  
S. Yuasa ◽  
R. Jansen
Keyword(s):  
Relative Strength ◽  
Spin Currents ◽  
Tunnel Contact ◽  
Electrical Spin

Energy dispersion of tunnel spin polarization extracted from thermal and electrical spin currents

2015 ◽  
Vol 91 (15) ◽  
Author(s):  
Kun-Rok Jeon ◽  
Hidekazu Saito ◽  
Shinji Yuasa ◽  
Ron Jansen
Keyword(s):  
Spin Polarization ◽  
Energy Dispersion ◽  
Spin Currents ◽  
Electrical Spin

scholarly journals NONLOCAL ELECTRONIC SPIN DETECTION, SPIN ACCUMULATION AND THE SPIN HALL EFFECT

2009 ◽  
Vol 23 (11) ◽  
pp. 2413-2438 ◽  
Author(s):  
SERGIO O. VALENZUELA
Keyword(s):  
Hall Effect ◽  
Spin Diffusion ◽  
Spin Injection ◽  
Spin Hall Effect ◽  
Current Status ◽  
Pure Spin ◽  
Spin Accumulation ◽  
Spin Currents ◽  
Electrical Spin ◽  
Spin Detection

In recent years, electrical spin injection and detection has grown into a lively area of research in the field of spintronics. Spin injection into a paramagnetic material is usually achieved by means of a ferromagnetic source, whereas the induced spin accumulation or associated spin currents are detected by means of a second ferromagnet or the reciprocal spin Hall effect, respectively. This article reviews the current status of this subject, describing both recent progress and well-established results. The emphasis is on experimental techniques and accomplishments that brought about important advances in spin phenomena and possible technological applications. These advances include, amongst others, the characterization of spin diffusion and precession in a variety of materials, such as metals, semiconductors and graphene, the determination of the spin polarization of tunneling electrons as a function of the bias voltage, and the implementation of magnetization reversal in nanoscale ferromagnetic particles with pure spin currents.

scholarly journals Nonlinear Electrical Spin Conversion in a Biased Ferromagnetic Tunnel Contact

2018 ◽  
Vol 10 (6) ◽  
Author(s):  
R. Jansen ◽  
A. Spiesser ◽  
H. Saito ◽  
Y. Fujita ◽  
S. Yamada ◽  
...  
Keyword(s):  
Spin Conversion ◽  
Tunnel Contact ◽  
Electrical Spin

Comparison of Thrombelastography with Common Coagulation Tests

1981 ◽  
Vol 46 (04) ◽  
pp. 752-756 ◽  
Author(s):  
L Zuckerman ◽  
E Cohen ◽  
J P Vagher ◽  
E Woodward ◽  
J A Caprini
Keyword(s):  
Laboratory Tests ◽  
Clinical Utility ◽  
Blood Clotting ◽  
Strong Relationship ◽  
Relative Strength ◽  
Additional Information ◽  
Patients With Cancer ◽  
Two Samples ◽  
Coagulation Tests ◽  
Common Laboratory

SummaryThrombelastography, although proven as a useful research tool has not been evaluated for its clinical utility against common coagulation laboratory tests. In this study we compare the thrombelastographic measurements with six common tests (the hematocrit, platelet count, fibrinogen, prothrombin time, activated thromboplastin time and fibrin split products). For such comparisons, two samples of subjects were selected, 141 normal volunteers and 121 patients with cancer. The data was subjected to various statistical techniques such as correlation, ANOVA, canonical and discriminant analysis to measure the extent of the correlations between the two sets of variables and their relative strength to detect blood clotting abnormalities. The results indicate that, although there is a strong relationship between the thrombelastographic variables and these common laboratory tests, the thrombelastographic variables contain additional information on the hemostatic process.

The quantitative and qualitative contributions of faith based organizations to healthcare: The Kenya case

2017 ◽  
Vol 4 (3) ◽  
pp. 60-71 ◽  
Author(s):  
Alfredo Fort
Keyword(s):  
Health Facility ◽  
Management Practices ◽  
Developing World ◽  
Weighted Average ◽  
Relative Strength ◽  
For Profit ◽  
Faith Based ◽  
Non Governmental Organizations ◽  
Faith Based Organizations ◽  
The Government

Though difficult to ascertain because faith based organizations (FBOs) might keep a low profile, be confused with other non-governmental organizations (NGOs), or survey respondents may not know the nature of facilities attended to, these organizations have a long presence in teaching health personnel and delivering health services in many rural and remote populations in the developing world. It is argued that their large networks, logistics agreements with governments, and mission-driven stance brings them closer to the communities they serve, and their services believed of higher quality than average. Kenya has a long history of established FBOs substantial recent health investment by the government. We aimed to find the quantitative and qualitative contributions of FBOs by analyzing two recent data sources: the live web-based nationwide Master Health Facility List, and the 2010 nationwide Service Provision Assessment (SPA) survey. Using this information, we found that FBOs contribute to 11% of all health facilities’ presence in the country, doubling to 23% of all available beds, indicating their relative strength in owning mid-level hospitals around the country. We also constructed an index of readiness as a weighted average from services offered, good management practices and availability of medicines and commodities for 17 items assessed during the SPA survey. We found that FBOs topped the list of managing authorities, with 70 percent of health facility readiness, followed closely by the government at 69 percent, NGOs at 61 percent and lastly a distant private for profit sector at 50 percent. These results seem to indicate that FBOs continue to contribute to an important proportion of health care coverage in Kenya, and that they do so with a relatively high quality of care among all actors. It would be of interest to replicate the analysis with similar databases for other countries in the developing world.

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