Volume 11 Issues 3 and 4 December 2012 and March 2013

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https://doi.org/10.33697/ajur.2013.001

After 10 Years: Returning to the International Connection

https://doi.org/10.33697/ajur.2013.002

Author(s):

C. C. Chancey

Affiliation:

University of Northern Iowa, Cedar Falls, Iowa 50614-0150 USA


Measuring Potassium in Muscle Tissue Utilizing an Atomic Absorption Spectrometer Validation of an Adaptation for a Whole-body Potassium Counting Method

https://doi.org/10.33697/ajur.2013.003

Author(s):

Anthony R. Horner, Rose A. Clark, Stephen M. LoRusso, and Edward P. Zovinka

Affiliation:

Department of Chemistry, Department of Physical Therapy, Saint Francis University, 117 Evergreen Drive, Loretto, Pennsylvania 15940 USA

ABSTRACT:

Potassium is a cation important for a properly functioning body. It is especially significant for nerves, kidneys, and muscles. The concentration of potassium ions in muscle tissue was determined using an atomic absorption spectrometer operating in emission mode. The meat samples were flash frozen using liquid nitrogen, further ground using a mortar and pestle and then digested by immersing the processed meat in a hydrochloric acid solution. The potassium concentrations in muscle tissue were found to range from 2.76 – 4.66 g K+/kg of beef sample.


A Case Study on Developing a Classroom Web Application Using Behavior-Driven Development

https://doi.org/10.33697/ajur.2013.004

Author(s):

Austin Vance and Trevor Cickovski

Affiliation:

Eckerd College, 4200 54th Avenue South, Saint Petersburg, Florida 33712 USA

ABSTRACT:

Behavior-Driven Development (BDD) is a software design methodology which bridges the developer-client gap by evolving software through communication between the two sides and shaping it to the goals of shareholders. As a recently published iterative development strategy, BDD is slowly being adopted as a software practice in a wide range of domains. We study the applicability of BDD to designing Narwhal, a classroom drawing application that mimics a combination of PowerPoint slides and whiteboard. Through this case study, we employ junior and senior seminar students as clients and view the effects of BDD on Narwhal’s evolution over a three-month period. We conclude with a discussion on the general applicability of BDD to the design of classroom tools following lessons learned from this case study.


A Comparison of Skin Microbiota under Adhesive Bandages versus Uncovered Adjacent Skin

https://doi.org/10.33697/ajur.2013.005

Author(s):

Kendra Lemire, Felicia Maes, Marialis Ginart, Chris VanFleet and Tim Braun

Affiliation:

Biological Sciences Department, State University of New York at Oswego, 7060 Route 104, Oswego, New York 13126-3599 USA

ABSTRACT:

The skin is the largest organ in the human body and interacts directly with the exterior environment. It is also a habitat for bacteria. We are interested in the perturbing effects of adhesive bandages on the skin’s bacterial populations. We compared covered versus uncovered finger skin using three kinds of over the counter adhesive bandages. We found that skin covered with an adhesive bandage is home to approximately 80 fold more culturable bacteria than is uncovered skin and that type of bandage makes little difference to expansion of the bacterial population. Diversity of bacteria was measured by two different techniques: one culture dependent and one culture independent, both found no significant diversity difference between covered vs. uncovered skin in number of taxa present. The culture dependent analysis found that most samples were dominated by a single bacterium, whereas the culture independent 16S rDNA analysis found more diversity. Evidence of seasonal cycling of dominant culturable skin bacteria was observed.


More on the Mathematics of the DLF Theory: Embedding of the Oscillator World L into Segal’s Compact Cosmos D

https://doi.org/10.33697/ajur.2013.006

Author(s):

J. Y. Feng* and A. V. Levichev

Affiliation:

Department of Mathematics, Boston University, Boston, Massachusetts 02215 USA

ABSTRACT:

The DLF theory can be understood as an attempt to modify the Standard Model by flexing the Poincare symmetry to certain 7-dimensional symmetries. The D part of the theory is known as Segal’s Chronometry which is based on compact cosmos D=U(2) with the SU(2,2) fractional linear action on it. The oscillator group is viewed as a subgroup LG of the conformal group G=SU(2,2) and certain LG-orbits L in D are studied. We prove existence of such L and of such an embedding of F=U(1,1) into D, that D differs from F by a certain torus whereas D differs from L by a circle on that torus. In the general U(p,q) vs U(p+q) case, the Sviderskiy formula is described – as a tribute to the late Oleg S. Sviderskiy (July 31 1969 – March 30 2011).


SAR and Pharmacophore Based Designing of Some Antimalarial and Antiretroviral Agents: An INTERNET Based Drug Design Approach

https://doi.org/10.33697/ajur.2013.007

Author(s):

Soumendranath Bhakat

Affiliation:

Department of Pharmaceutical Sciences, Birla Institute of Technology, Mesra, Ranchi-835215 INDIA

ABSTRACT:

With the development of computational chemistry and molecular docking studies, Structure Activity Relationship or SAR- and pharmacophore-based drug design have been modified to target based drug discovery using sophisticated computational tools which is not very much user friendly and has got many incompatibility issues with many operating systems (OS) and other system configurations. In this paper SAR and pharmacophore based drug design approaches have been described by the used of free internet based tools which are very much user friendly and can almost compatible with any platform. Some antimalarial. And anti retroviral agents have been designed using pharmacophore study and their drug like properties, toxicity, metabolic sites and other parameters are predicted by the free internet based tools.