A Guidebook on How to Be Students in an American University for Students of Alfalink Overseas Study and English Course

In the internship program, I worked at West Alfalink which is located at Ruko Rich Palace kav. I-1 Jl. MayjenSungkono 149-151. Alfalink is an overseas education consultant / agent and English language center. In this company, I found three problems. One of them is no guidebook for students who choose the USA to do their overseas study. By looking at this condition, I decided to make the USA guidebook for Alfalink's students. It can be an effective tool for the company to give detailed information for the students. By providing this guidebook, Alfalink and students can get a lot of benefits. First, Alfalink's staff do not need to give long explanation to the students and to new staff. Second, Alfalink can use it as a promotional tool. Last, students can get complete information about the USA

The physics of wind-blown sand and dust

The transport of sand and dust by wind is a potent erosional force, creates sand dunes and ripples, and loads the atmosphere with suspended dust aerosols. This article presents an extensive review of the physics of wind-blown sand and dust on Earth and Mars. Specifically, we review the physics of aeolian saltation, the formation and development of sand dunes and ripples, the physics of dust aerosol emission, the weather phenomena that trigger dust storms, and the lifting of dust by dust devils and other small-scale vortices. We also discuss the physics of wind-blown sand and dune formation on Venus and Titan.Comment: 72 journal pagers, 49 figure

Prepared for Bioterrorism Events? A Study of the Grain and Oilseed Sector

One of the most crucial problems facing the U.S. economy is the possibility of a terrorist attack on its food sector. The implications can be profound for its stakeholders, who are highly dependent on this sector for their economic livelihood as well as their food supplies. The U.S. Bioterrorism Act of 2002 was enacted to improve the ability of the United States to prevent, prepare for and respond to bioterrorism and other public health emergencies. One of the important features of the U.S. Bioterrorism Act of 2002 is its emphasis on prevention, a change from prior legislation that focused on punishments after an incidence had occurred. The U.S. Bioterrorism Act does not address food safety issues in general; its focus is to prevent intentional contamination. The objective of this study was to assess the preparedness to potential bioterrorism in the grain and oilseed sector based on facility security expenditures and history of security breaches. The study was conducted as a research activity under the multistate project NC-1016 “Economic Assessment of Changes in Trade Arrangements, Bio-terrorism Threats and Renewable Fuels Requirements on the U.S. Grain and Oilseed Sector.” In addition to assessing preparedness, the study investigated the relationship between adoption of security measures and breaches in facility security. Finally the study documents, for a small sample, the extent to which grain and oilseed facilities appear to be following regulations that implement the U.S. Bioterrorism Act.bioterrorism, grain and oilseed sector, Bioterrorism Act of 2002, NC-1016, Agribusiness, Agricultural and Food Policy, Marketing, Political Economy, I18, K23, Q13, Q18,

Attitudes of College Students towards Agriculture, Food and the Role of Government

In 2002 and 2007 we surveyed Agribusiness students’ attitudes about agriculture, farming, food and agricultural policies. Responses were analyzed by year and student characteristics including farm background, citizenship and gender. Citizenship was a significant variable explaining differences in agreement with statements. Year and interactions with year were not significant.agricultural policy, farming, logistic regression, student attitudes, Agricultural and Food Policy, Teaching/Communication/Extension/Profession, A13, A22, C42, Q18,

(Non)Parallel Evolution

Parallel evolution across replicate populations has provided evolutionary biologists with iconic examples of adaptation. When multiple populations colonize seemingly similar habitats, they may evolve similar genes, traits, or functions. Yet, replicated evolution in nature or in the laboratory often yields inconsistent outcomes: Some replicate populations evolve along highly similar trajectories, whereas other replicate populations evolve to different extents or in distinct directions. To understand these heterogeneous outcomes, biologists are increasingly treating parallel evolution not as a binary phenomenon but rather as a quantitative continuum ranging from parallel to nonparallel. By measuring replicate populations’ positions along this (non)parallel continuum, we can test hypotheses about evolutionary and ecological factors that influence the extent of repeatable evolution. We review evidence regarding the manifestation of (non)parallel evolution in the laboratory, in natural populations, and in applied contexts such as cancer. We enumerate the many genetic, ecological, and evolutionary processes that contribute to variation in the extent of parallel evolution

Preheating after N-flation

We study preheating in N-flation, assuming the Mar\v{c}enko-Pastur mass distribution, equal energy initial conditions at the beginning of inflation and equal axion-matter couplings, where matter is taken to be a single, massless bosonic field. By numerical analysis we find that preheating via parametric resonance is suppressed, indicating that the old theory of perturbative preheating is applicable. While the tensor-to-scalar ratio, the non-Gaussianity parameters and the scalar spectral index computed for N-flation are similar to those in single field inflation (at least within an observationally viable parameter region), our results suggest that the physics of preheating can differ significantly from the single field case.Comment: 14 pages, 14 figures, references added, fixed typo

Analisis Hasil Pemeriksaan Spesimen Darah Penderita Demam Berdarah Dengue di Jakarta Tahun 1988

Dengue Haemorrhagic Fever is an endemic and important public health disease in Indonesia. Surveillance of hospitalized case usually reported 5.000 cases annually but 10.000 cases could be reported during an outbreak period. The case fatality rate had been decreasing to 4% at present. Studies to analyse the risk factors of an area, pathophysiology of shock or bleeding, prevention, eradication and surveillance were still needed. The important Dengue Haemorrhagic Fever factors were analysed in this tudy based on the 1756 specimens tested in the Communicable Disease Research Center during the period from January1988 to Desember 1988, sent by most of the hospitals in Jakarta. The overall difference between male and female was not significant, although on January, July, September and Desember 1988 females were almost 2 times higher then males.Theoverall difference of children and adult groups were also not significant, although on February, March, November and Decem­ber 1988 adults were higher 2-5 times then children. This findings were not usual. The antibody response titers during acute and convalescence period of illness was lower among chil­dren. These findings were not usual. The antibody response titers during acute and convalescence period of illness was lower among chil­dren then adults, although it was still lower then in Thailand

Survey on Securing Medical Image Transmission using Visual Cryptography Techniques

Visual cryptography scheme is a cryptographic technique which allows visual information text or image to be encrypted in such a way that the decryption can be performed by the human visual system and without the aid of computers. It encodes the secret image into shares of different patterns. Visual Cryptography is done on black and white image as well as on color image. This paper includes the literature survey regarding Visual Cryptography techniques for secure medical image transmission

Changes in volatile compounds during ripening of Chorizo de Pamplona elaborated with Lactobacillus plantarum and Staphylococcus carnosus.

The ripening of chorizo de Pamplona was followed through the changes of the volatile compounds extracted by a simultaneous destilation-extraction with dichloromethane. An increase of the number and concentration of compounds was detected during the maturation, ranging from 63 compounds (10.26 mg dodecane/g dry matter) to 98 substances (223.16 mg of dodecane/g dry matter) identified in the mixing and in the final product, respectively. Acids showed the highest increase during the ripening, reaching 90% of the total amount of compounds at the end of the process, followed by esters and aldehydes. Short chain fatty acids, which contributed to the typical organoleptic charac teristics of dry fermented sausages, became apparent from the 21st day and accounted for only 1.3 mg of the total of acids in final product (202 mg dodecane/g dry matter). Sulphur compounds decreased slightly during the ripening, a result of the decrease in the content of the disulphide di- 2-propenyl, a compound originated from garlic