The Association Between Body Composition and Acute Mountain Sickness

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Comparison of two kinds of fuzzy arithmetic, LR and OFN, applied to fuzzy observation of the cofferdam water level

This paper presents certain important aspects of the fuzzy logic extension, one of which is OFN. It includes basic definitions of that discipline. It also compares fuzzy logic arithmetic with the arithmetic of ordered fuzzy numbers in L-R notation. Computational experiments were based on fuzzy observation of the impounding basin. The results of the study show that there is a connection between the order of OFN number and trend of changes in the environment. The experiment was carried out using computer software developed specially for that purpose. When comparing the arithmetic of fuzzy numbers in L-R notation with the arithmetic of ordered fuzzy numbers on the grounds of the experiment, it has been concluded that with fuzzy numbers it is possible to expand the scope of solutions in comparison to fuzzy numbers in classic form. The symbol of OFN flexibility is the possibility to determine the X number that always satisfies the equation A+X=C, regardless of the value of arguments. Operations performed on OFN are less complicated, as they are performed in the same way regardless the sign of the input data and their results are more accurate in the majority of cases. The promising feature of ordered fuzzy numbers is their lack of rapidly growing fuzziness. Authors expect to see implication of that fact in practice in the near future

Longitudinal assessment of cognitive and psychosocial functioning after Hurricanes Katrina and Rita: Exploring disaster impact on middle-aged, older, and oldest-old adults

The authors examined the effects of Hurricanes Katrina and Rita on cognitive and psychosocial functioning in a lifespan sample of adults 6-14 months after the storms. Participants were recruited from the Louisiana Healthy Aging Study. Most were assessed during the immediate impact period and retested for this study. Analyses of pre- and post-disaster cognitive data confirmed that storm-related decrements in working memory for middle-aged and older adults observed in the immediate impact period had returned to pre-hurricane levels in the post-disaster recovery period. Middle-aged adults reported more storm-related stressors and greater levels of stress than the two older groups at both waves of testing. These results are consistent with a burden perspective on post-disaster psychological reactions. © 2012 Wiley Periodicals, Inc

Effects of Applying Floss Bands on Regional Blood Flow

Bohlen, J., Arsenault, M., Deane, B., Miller, P., Guadagno, M., Dobrosielski, D.A. Towson University, Towson, MD Compression tack and band flossing results in re-perfusion of muscle tissue that may ultimately increase range of motion (ROM) and improve joint mechanics. Whether band flossing influences regional vascular adaptations or strength has not been evaluated. Purpose: Examine the effects of 14 days of band flossing combined with joint mobilization and resistive exercise on calf blood flow and plantar/dorsi flexion strength. Methods: Five participants (age: 20 ± 1 years; men = 1, women = 4) completed 14 days of once per day bilateral therapy that included: unloaded squats (2 sets X 10 reps), heel raises (1 set X 10 reps), active dorsi flexion (1 set X 10 reps) and passive ankle mobilization. During each session, floss bands were applied proximal and distal to the patella of the experimental leg (EXP) while the contralateral leg acted as the control (CON). Resting arterial inflow and reactive hyperemic blood flow (RHBF) were assessed with venous occlusion plethysmography. An isokinetic dynamometer was used to measure plantar/dorsi flexion strength. Baseline assessments were repeated after the 14-day intervention. Results: At baseline, there were no differences between legs in average resting arterial inflow (EXP: 2.17 ± 1.39 mlŸ100ml-1Ÿmin-1 vs. CON: 2.22 ± 0.70 mlŸ100ml-1Ÿmin-1, p=0.89) or RHBF (EXP: 17.91 ± 3.79 mlŸ100ml-1Ÿmin-1 vs. CON: 19.14 ± 2.89 mlŸ100ml-1Ÿmin-1, p=0.60). Dorsi flexion peak torque at 60 degreesŸsec-1 was similar between legs at baseline (EXP: 9.4 ± 2.7 Nm vs. CON: 10.7 ± 3.1 Nm, p=0.11). No changes from baseline were observed in RHBF for either leg. Dorsi flexion peak torque increased 22% in the EXP (p=0.06), while no change in the CON was observed. Conclusion: While strength was modified in the EXP leg, we found no change in RHBF, suggesting no adverse or beneficial effects of band flossing on vascular function. However, the implications of more rigorous protocols of longer duration on vascular health should be comprehensively examined

Examination of Vascular Function Changes with Exercise in Overweight Men With and Without Sleep Apnea

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Disease Burden is Associated with Differences in Diurnal Patterns of Physical Activity in Older Adults

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Authentication over Internet Protocol

Defending against DoS (denial of service) attacks has become a great challenge, especially for institutions that provide access to their services in the public network. State-of-the-art identity concealing tools and vast number of computers connected to the network require ensuring appropriate means for entities at risk to enable defence from the particular type of threats. This article presents a concept of user authentication in IP communication. The concept consists in providing the receiver with the possibility to determine sender՚s identity at the Internet layer level. This provides both the capability of defence against DoS attacks and possibility of utilizing the presented model over existing Internet network, which is directly responsible for transmission. The authors hope that the concept is a significant step in the perception of public network data transmission

Oxygen Desaturation in Sleep Apnea is Inversely Associated with Vascular Changes Following Exercise Training

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An Examination of Vascular Function Following Acute Exercise in Adults With and Without Sleep Apnea

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Oxygen Desaturation in Sleep Apnea is Inversely Associated with Vascular Changes Following Exercise Training

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