Analytical approximation for the sphere-sphere Coulomb potential

A simple analytical expression, which closely approximates the Coulomb potential between two uniformly charged spheres, is presented. This expression can be used in the optical potential semiclassical analyses which require that the interaction be analytic on and near the real r-axis.Comment: 4 pages including 3 figures and 1 tabl

Fabrication of free-standing ordered fluorescent polymer nanofibres by electrospinning

The authors are grateful to the Engineering and Physical Sciences Research Council for financial support.We demonstrate a static fabrication approach to make free-standing ordered arrays of fluorescent nanofibres through control of the transverse electrospinning field. The alignment and the density of the nanofibre arrays are optimised by careful design of both the source and collector electrode geometries which can control the transverse electric field over the full path of the jet. In doing so, we fabricate suspended fluorescent nanofibres with an aspect ratio of 10(4), and with a substantially increased density and order parameter (by a factor of similar to 10 compared to random deposition). Electrostatic modelling suggests that the field distribution of the component is the main contribution to the ordering between the plates. This method offers increased efficiency for the creation of ordered fibres collected over a small area and the characterisation of their photoluminescent properties.Publisher PDFPeer reviewe

Ro 15-4513 Antagonizes Alcohol-Induced Sedation in Mice Through aß¿2-type GABA(A) Receptors

Peer reviewedPublisher PD

Refractive effects in the scattering of loosely bound nuclei

A study of the interaction of loosely bound nuclei 6,7Li at 9 and 19 AMeV with light targets has been undertaken. With the determination of unambiguous optical potentials in mind, elastic data for four projectile-target combinations and one neutron transfer reaction 13C(7Li,8Li)12C have been measured on a large angular range. The kinematical regime encompasses a region where the mean field (optical potential) has a marked variation with mass and energy, but turns out to be sufficiently surface transparent to allow strong refractive effects to be manifested in elastic scattering data at intermediate angles. The identified exotic feature, a "plateau" in the angular distributions at intermediate angles, is fully confirmed in four reaction channels and interpreted as a pre-rainbow oscillation resulting from the interference of the barrier and internal barrier farside scattering subamplitudes.Comment: 19 pages, 14 figures, 3 tables to submit to Phys. Rev.

Pengaruh Substitusi Ekstrak Bit terhadap Kualitas Donat

This research aims to analyze the differences in the form of extract substitutioninfluence bit by looking at the quality of the external volume, color, overall shape,spherical shape, and quality of internal pores of color, texture smooth and soft,delicate aroma of yeast and beets, sweet flavor and beet, then look at the qualityof hedonic. The study was a randomized complete design an experiment usingthree times the replication with the number of panelis 30. Free variables is to seeinfluence of the substitution variable bit, and extract bound to see the quality ofeach charge indicators will. Based on the analysis of the results showed that thequality of category volume expands, the color of the skin and pores of the reddishpink categories, overall shape and central holes a round symmertrical,categorized texture is smooth and creamy, flavorful yeast aroma category and notflavorful beets, sense of categorized sweetnes and does not feel beet. Based ondate from all research significant, Ha which means it is accepted then there is adifference in the quality of such research

Pengaruh Penambahan Wortel Dan Rumput Laut Terhadap Kualitas Nugget Tempe

The purpose of the study is to analyze the effect of the addition of carrot and seaweed as much as 25%, 50%, 75% and 100% of the amount of material used to quality tempe nuggets (shape, color, aroma, texture, and flavor). Type of research is true experimental with completely randomized design method. The object of research is tempe nuggets with the addition of carrots and seaweed were: 0%, 25%, 50%, 75% and 100%. The data used are primary data obtained directly from the 30 panelists who gave the answer of organoleptic test format. The data has been obtained and tabulated in tables and performed Variant Analysis (ANAVA), if different followed by Duncan test. The results showed significant effect on the quality of the same form, star shape, the color of the inside, the texture elasticity, hardness and hedonic texture, aroma tempeh, carrots and hedonic aroma, not unpleasant taste and savory flavor. Statistical test results showed a sub indicator of skin color, hedonic color, fragrant aroma and hedonic taste fried tempe nuggets Ha rejected stating there was no significant effect of the addition of carrots and seaweed on the quality of tempe nuggets

Bentuk Dan Fungsi Rumah Adat Raja Pamusuk Mandailing

As the chief (king) custom, he is the leader of the indigenous peoples in the region. Authority board chairman and chairman of the village's land is specialized in the field of government, while the indigenous affairs retained and carried out by those who are entitled according to the customs of indigenous peoples concerned. That is why to this day remains traditional ceremonies led by the king of custom pamusuk.menurut. Chairman of the country has never been recognized as a king sitting Mandailaing community customs. King and his descendants to this day still recognized as king of indigenous peoples in traditional ceremonies, and they called the king of custom. So the king pamusuk in symbolized as banyan tree beneath always protect the public, because people always take shelter beneath it