The measurement of meaning

https://www.healio.com/psychiatry/journals/psycann/1976-12-6-12/{806b8887-c02e-40c8-a228-57f1cdb2bdba}/the-stress-of-life.pdf

The stress of life

The State of Food and Agriculture

Cadmium(II)-selective sensors based on dibenzo-24-crown-8 in PVC matrix

Atomically thin transition metal dichalcogenides have emerged as promising candidates for sensitive photodetection. Here, we report a photoconductivity study of biased mono- and bilayer molybdenum disulfide field-effect transistors. We identify photovoltaic and photoconductive effects, which both show strong photogain. The photovoltaic effect is described as a shift in transistor threshold voltage due to charge transfer from the channel to nearby molecules, including SiO2 surface-bound water. The photoconductive effect is attributed to the trapping of carriers in band tail states in the molybdenum disulfide itself. A simple model is presented that reproduces our experimental observations, such as the dependence on incident optical power and gate voltage. Our findings offer design and engineering strategies for atomically thin molybdenum disulfide photodetectors, and we anticipate that the results are generalizable to other transition metal dichalcogenides as well.

Mechanisms of photoconductivity in atomically thin MoS2

Role of zirconia filler on friction and dry sliding wear behaviour of bismaleimide nanocomposites

Colors have always played a significant role in impacting one's moods, emotions, feelings, sensations and perception and seem to offer possibilities for multifaceted interpretation rather than leav...

Impact of Colors on the Psychology of Marketing — A Comprehensive over View:

In spite of the large amount of tribological work carried out to explain the friction and wear mechanism in diamond-like carbon (DLC) films, some of the core issues relating to the evolution of reactive species across sliding interfaces and their role on the friction and wear mechanism remain unclear. The phase composition, film density and hydrogen content present in a DLC film can be tailored by substrate biasing during film deposition to achieve a nearly vanishing friction coefficient. Furthermore, nitrogen doping in DLC films significantly improves wear resistance, and sliding occurs in a nearly wearless regime. Undoped and nitrogen-doped DLC films exhibit a nearly frictionless value with ultra-low wear behavior when tests are performed in argon, nitrogen and methane atmospheres. The antifriction and antiwear properties of the DLC films were improved with the reduction of adsorbed oxygen impurities on the film surface. This behavior was understood by correlating the oxygen impurities present at the surface/subsurface region of the DLC film while using x-ray photoelectron spectroscopy and depth-resolved Auger electron spectroscopy.

Interpretation of friction and wear in DLC film: role of surface chemistry and test environment

In recent years, microbial asparaginases have drawn particular interest because of their potential antineoplastic properties and significant application in food industries. The present survey was undertaken to establish other microbial species which produce L-asparaginase, possibly in more effective and specific form, and which might have even more efficient antineoplastic action.15 soil isolates and 12 other microorganisms from different culture collections were evaluated for their L-asparaginase producing ability. The activity was identified on a agar medium containing 3.0 gL-1 glucose, 6.0 gL-1 Na2HPO4.2H2O, 3.0 gL-1 KH2PO4, 0.5 gL-1 MgSO4.7H2O, 0.5 gL-1 NaCl, 0.015 gL-1 CaCl2.2H2O, 3.0 gL-1 L-asparagine at and phenol red. Phenol red was used as an indicator for the production of enzyme L-asparaginase. Among all the microorganisms tested, four organisms from soil sample and nine cultures from various culture collections in India showed their potential for the enzyme production. Further morphological and biochemical characterization resulted that the soil isolates were belonging to the genera Bacillus spp., Proteus spp. and Pseudomonas spp. The strain, designated as ITBHU02, has shown maximum activity of enzyme L-asparaginase.

Screening and characterization of microorganisms capable of producing antineoplastic drug, l-asparaginase

The present study reports an enhancement of the power factor of Bi2Te3 nanorods NRs) by helium (He+) ion irradiation. High-resolution transmission electron microscopy studies revealed the formation of amorphous layers on the surface of the NRs at the high ion fluence. This amorphous nature is due to the accumulation of migrating point defect clusters at the surface of the NRs. Raman scattering experiments provide further insight to the observed structural modifications. At higher ion fluence, impurity-dominated scattering processes significantly enhance the value of the Seebeck coefficient of Bi2Te3 NRs. The He+ ion irradiation up to the ion fluence of 1 × 1016 ions/cm2 improves the thermoelectric transport properties with the highest power factor, 8.2 μW/m K2, at 390 K. Further investigations may result in the possibility of fabricating the Bi2Te3 NRs as thermoelectric generators with a high power factor for space applications.

https://pubs.acs.org/doi/pdf/10.1021/acsomega.8b02379

S. K. Srivastava

Papers

Role of zirconia filler on friction and dry sliding wear behaviour of bismaleimide nanocomposites

Impact of Colors on the Psychology of Marketing — A Comprehensive over View:

Interpretation of friction and wear in DLC film: role of surface chemistry and test environment

Screening and characterization of microorganisms capable of producing antineoplastic drug, l-asparaginase

Tuning of the Thermoelectric Properties of Bi2Te3 Nanorods Using Helium Ion Irradiation.