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Single Stance Stability and Proprioceptive Control in Older Adults Living at Home: Gender and Age Differences
Dario Riva,Carlo Mamo,Mara Fanì,Patrizia Saccavino,Flavio Rocca,Manuel Momenté,Marianna Fratta
Journal of Aging Research , 2013, DOI: 10.1155/2013/561695
Abstract: In developed countries, falls in older people represent a rising problem. As effective prevention should start before the risk becomes evident, an early predictor is needed. Single stance instability would appear as a major risk factor. Aims of the study were to describe single stance stability, its sensory components, and their correlation with age and gender. A random sample of 597 older adults (319 men, 278 women) living at home, aged 65–84, was studied. Stability tests were performed with an electronic postural station. The single stance test showed the impairment of single stance stability in older individuals (75–84?yrs). The significant decline of stability in the older subjects may be explained by the impairment of proprioceptive control together with the decrease in compensatory visual stabilization and emergency responses. Younger subjects (65–74?yrs) exhibited better, but still inadequate, proprioceptive control with compensatory visual stabilization. Gender differences appeared in older subjects: women were significantly less stable than men. The measurement of the sensory components of single stance stability could aid in the early detection of a decay in antigravity movements many years before the risk of falling becomes evident. Adequate proprioceptive control could mitigate the effects of all other risks of falling. 1. Introduction Unstable balance, falls, and loss of independence in the older population are a growing problem in the developed countries [1, 2]. The safety of walking and balance are indispensable requirements to prevent falls and loss of independence [3–6]. Safe mobility is primarily based on the integration of the proprioceptive, visual, and vestibular inputs [7–11]. Afferent proprioceptive inputs are conveyed to different levels of the central nervous system [10, 12, 13], but most remain unconscious and only a very few (approximately one signal out of a million) are able to reach the conscious level [14]. The joint position sense and the joint movement sense (kinesthesia) are the expression of the conscious component, while postural control is mainly based on the unconscious component [13]. In the case of the antigravity movements, proprioceptive control is the expression of the effectiveness of the stabilizing reflexes in controlling vertical stability [12]. By antigravity movements, we mean activities which require the individual to counteract gravity and postural instability with at least a phase of single-limb stance (walking, running, jumping, going up and down stairs, and so forth). Proprioceptive inputs are the
Intestinal Parasitic Infections among Prison Inmates and Tobacco Farm Workers in Shewa Robit, North-Central Ethiopia
Hassen Mamo
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0099559
Abstract: Background Intestinal parasitic infections (IPIs) particularly soil-transmitted helminthiasis (STH) and schistosomiasis are among neglected tropical diseases (NTDs) globally. Apart from being associated with anemia, malabsorption and retarded cognitive development these diseases are complicating the clinical picture of more serious infections like HIV, TB and malaria. Renewed and up-to-date information on the epidemiology of IPIs in more vulnerable groups such as irrigated-farm workers and prisoners would significantly contribute towards improving the health condition of such at-risk groups. Methods A cross-sectional survey was conducted to determine the prevalence of IPIs among prison inmates and tobacco farm workers in Shewa-Robit, north-central Ethiopia in November 2008. A total of 236 fecal samples were examined microscopically to detect helminths and/or protozoa using direct-smear and formol-ether concentration methods. Results Overall, 8 intestinal parasite species have been recovered singly or in combinations from 146 (61.8 %) samples. The prevalence in prison population (88/121 = 72.7%) was significantly higher than that in tobacco farm (58/115 = 50.4%). There were no significant differences in the prevalence of IPI by most socio-demographics. Except for hookworm there was no significant difference in parasite prevalence between different age-groups though the frequency of individual parasites slightly varied between the age-groups. Multivariate logistic regression analysis showed that inmates were more likely to acquire IPIs than tobacco-farm workers (Odds Ratio (OR) = 2.62, 95% confidence interval (CI) = 1.52–4.5). In addition, participants who did not report past treatment for IPIs were more likely to acquire IPIs than participants who self-reported treatment for IPIs in the past twelve months (OR = 3.25, 95% CI = 1.75–6.06). All other socio-demographics were not significantly associated with IPIs in univariate analysis. Entamoeba histolytica/dispar/moshkovskii was the most frequently encountered species in both study sites accounting for 48.8 and 51.7 percent of the positives in prison and tobacco farm population respectively. Other intestinal parasites detected, with slight variation in prevalence in the two study areas, were hookworm, Ascaris lumbricoides, Trichuris trichiura, Schistosoma mansoni, Strongyloides stercolaris, Hymenolepis nana and Taenia sp. 35.5 and 33.0 percent of the total positive cases were mixed infections in Shewa Robit prison and tobacco farm, respectively. Conclusion The results show that IPIs are common health
Runoff and Sediment Modeling Using SWAT in Gumera Catchment, Ethiopia  [PDF]
Kaleab Habte Michael Mamo, Manoj K. Jain
Open Journal of Modern Hydrology (OJMH) , 2013, DOI: 10.4236/ojmh.2013.34024
Abstract: This study was undertaken to examine the applicability of the SWAT model in Gumera river basin upstream of Lake Tana, Ethiopia for simulating stream runoff and sediment load. The area of river basin was discretized into 24 sub-catchments using ArcSWAT interface of the model. The semi automated Sequential Uncertainty Fitting (SUFI2) and fully automated Parameter Solution (ParaSol) calibration process built in SWAT calibration and uncertainty program (SWAT-CUP) were used to calibrate the model parameters using time series of flow and sediment load data of 1994 to 2002 and validated with the observed data from years 2003 to 2006. The performance of the model was evaluated using statistical and graphical methods to assess the capability of the model in simulating the runoff and sediment yield for the study area. The coefficient of determination (R2) and NSE values for the daily runoff by using [ParaSol] optimization technique was obtained as 0.72 and 0.71 respectively for the calibration period and 0.79 and 0.78 respectively for the validation period, R2 and NSE values of monthly flow calibration using SUFI2 are 0.83 and 0.78 respectively for validation it was 0.93 and 0.93. For monthly sediment yield by using SUFI2 calibration technique the model evaluation coefficients R2 and NS for calibration was computed as 0.61 and 0.60 respectively, for validation it was 0.84 and 0.83 respectively. The sensitivity analysis on 13 runoff producing parameters was also carried out and discussed.
Vacit ?MAMO?LU,?a?r? ?MAMO?LU
Middle East Technical University Journal of the Faculty of Architecture , 2009,
Smoking Health Professional Student: An Attitudinal Challenge for Health Promotion?
Daniel Cauchi,Julian Mamo
International Journal of Environmental Research and Public Health , 2012, DOI: 10.3390/ijerph9072550
Abstract: Tobacco is a major preventable cause of premature morbidity and mortality. Health professionals are uniquely positioned to provide targeted interventions and should be empowered to provide cessation counselling that influence patient smoking. A cross-sectional national survey was administered to all third year students in four disciplines at the University of Malta. The Global Health Professional Student Survey (GHPSS) questionnaire was distributed to collect standardised demographic, smoking prevalence, behavioural, and attitudinal data. 81.9% completed the questionnaire (n = 173/211). A positive significant association between tobacco smoke exposure at home and current smoking status was identified. Non-smokers regarded anti-tobacco policies more favourably than smokers, being more likely to agree with banning of tobacco sales to adolescents (OR 3.6; 95% CI: 2.5–5.3; p ≤ 0.001); and with a smoking ban in all public places (OR 8.9; 95% CI: 6.1–13.1; p ≤ 0.001). Non-smokers favoured a role for health professionals in promoting smoking cessation (OR 5.1; 95% CI: 3.1–8.5; p ≤ 0.001). Knowledge of antidepressants as tools for smoking cessation was also associated with a perceived role for skilled health professionals in cessation counselling (OR 4.9; 95% CI: 1.8–13.3; p = 0.002). Smoking negatively influences beliefs and attitudes of students toward tobacco control. There is a need to adopt a standard undergraduate curriculum containing comprehensive tobacco prevention and cessation training to improve their effectiveness as role models.
Synthesis and Characterization of Acyclic and Cyclic Azabridged Ligands Incorporating 2,2'-Bipyridine Subunits and Their Complexes With Copper(II), Cobalt(II), and Nickel(II)
Antonino Mamo,Andrea Pappalardo
Molecules , 2003, DOI: 10.3390/80700521
Abstract: The synthesis of a series of N,N'-disubstituted acyclic (AL) and cyclic (CL) aza-bridged ligands incorporating 2,2-pipryidine subunits is described. 1H-NMR and IR spectral data support the proposed ligand structures. Dynamic 1H-NMR studies on diurea and diamide derivatives point to the presence of slowly interconverting conformers on the 1H-NMR time-scale, owing to N?H···N hydrogen bonding and/or a restricted rotation around the amide bonds. The ligands synthesized form 1:1 complexes with divalent transition metal ions. Upon complexation, bis-ester derivatives AL5 and CL5 undergo a metal-induced hydrolysis of the ester groups to carboxyl functions, which act as additional binding sites for the metal ion, as well as hydrogen-bonding donor-acceptor binding site to produce dimeric complexes.
Dejene Mamo BEKANA
Management & Marketing , 2010,
Abstract: This study was proposed to explore the determinants of consumer preferences in Addis Ababa restaurants. Using consumer behavior literatures and theories it was hypothesized that disposable income, price, quality, hygiene practices, friendliness of restaurant staff, safety of food and range or menu variety are important determinants of consumer choice for restaurants. Primary data were generated from 265 customers of 55 restaurants randomly selected with the use of questionnaire of which 258 of the questionnaire ended usable. The non parametric hypothesis testing statistical tool, chi –square tests, and measures of variation were used for statistical analysis purposes. The anticipation of the researcher was that the hypothesis testing results would be significant in parallel with the hypothesized facts. The findings of the research suggest that income has insignificant impact up on quality price trade of among consumers of different income categories. Other hypothesis associated with price, quality, friendliness of restaurant staff, quick table service and range or menu varieties are found to be statistically significant. Over all, the research results suggest that restaurateurs should design marketing strategy that integrates the attributes used in this study to satisfy the needs and wants of their customers and differentiation of their products and services on the basis of the variables scored as they are significant considerations by consumers.
Vacit ?MAMO?LU
Middle East Technical University Journal of the Faculty of Architecture , 2010,
?a?r? ?MAMO?LU
Middle East Technical University Journal of the Faculty of Architecture , 2009,
"Kayseri'de Ya am ve Konut Kültürü" Kitab üzerine, Book Review
Vacit ?MAMO?LU
Middle East Technical University Journal of the Faculty of Architecture , 2006,
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