Risk factors of falls among elderly living in Urban Suez - Egypt

Introduction: Falling is one of the most common geriatric syndromes threatening the independence of older persons. Falls result from a complex and interactive mix of biological or medical, behavioral and environmental factors, many of which are preventable. Studying these diverse risk factors would aid early detection and management of them at the primary care level. Methods: This is a cross sectional study about risk factors of falls was conducted to 340 elders in Urban Suez. Those are all patients over 60 who attended two family practice centers in Urban Suez. Results: When asked about falling during the past 12 months, 205 elders recalled at least one incident of falling. Of them, 36% had their falls outdoors and 24% mentioned that stairs was the most prevalent site for indoor falls. Falls were also reported more among dependant than independent elderly. Using univariate regression analysis, almost all tested risk factors were significantly associated with falls in the studied population. These risk factors include: living alone, having chronic diseases, using medications, having a physical deficit, being in active, and having a high nutritional risk. However, the multivariate regression analysis proved that the strongest risk factors are low level of physical activity with OR 0.6 and P value 0.03, using a cane or walker (OR 1.69 and P value 0.001) and Impairment of daily living activities (OR 1.7 and P value 0.001). Conclusion: Although falls is a serious problem among elderly with many consequences, it has many preventable risk factors. Health care providers should advice people to remain active and more research is needed in such an important area of Family Practice.Pan African Medical Journal 2013; 14:2

Examining the determinants of users' acceptance of IT in the Yemeni public sector: pilot study

This paper presents the results of a pilot study conducted to test a pre-proposed model. The model modified the technology acceptance model (TAM) by adding the constructs: Organizational culture, Individual factors, Gender, and Perceived Personal Benefit to the original version of TAM. Data was collected quantitatively from30 employees of the Ministry of Social Affairs and Labor (MoSAL) Yemen, whom their jobs involve using IT. SmartPLS software PLS-SEM method was used to test the reliability of measurement model, and to assess the structural model. The results confirmed the reliability of the research instrument, as the measures of internal consistency were mostly acceptable. The results also indicated the significance of the hypotheses that relates organizational culture with perceived usefulness and perceived personal benefit; the. Finally, the model showed a good predictive power since 47% of the focal factor, behavioral intention, was explained by its relationships with the other factors

Design and implementation of Threefish cipher algorithm in PNG file

This paper is presenting design and implementation of Threefish block cipher on grayscale images. Despite the fact that Threefish block cipher is one of the best secure algorithms, most studies concerning Threefish have focused on hardware implementation and have not commonly been applied on image encryption due to huge amount of data. The main contribution here was to reduce the time and the amount of data to be encrypted while maintaining encryption performance. This objective was achieved by encrypting just the most significant bits of image pixels. A 256-bit plain text blocks of the Threefish was constructed from 2n most significant bits of the pixels, where 0<n<3. Furthermore, Threefish block cipher was applied when n=3 to analyze the impact of uninvolving some bits in encryption process on the encryption performance. The results indicated that the encryption achieved good encryption quality when n=1, but it might cause some loss in decryption. In contrast, the encryption achieved high encryption quality when n=2, almost as good as the encryption of the whole pixel bits. Furthermore, the encryption time and the amount of data to be encrypted were decreased 50% as n decreased by 1. It was concluded that encrypting half of the pixel bits reduces both time and data, as well as significantly preserves the encryption quality. Finally, although the proposed method passed the statistical analysis, further work is needed to find a method resistant to the differential analysis

Design of High Rise Reinforced Concrete Buildings

Design of a high-rise reinforced concrete building, like any engineering design, is a complex multidisciplinary process with the objective to discover, detail and construct a system to fulfill a given set of performance requirements. The success of this process is highly dependent upon the cooperation taking place between the members of the design team. Although present-day engineering computer technology allows for precise analysis and design of the different subsystems of the high-rise building, it does not readily provide insight for choosing among alternatives of these subsystems to arrive at the best overall design. The thesis begins with a review of the design of high rise buildings and the conceptual design of it. Then the study is carried out to investigate some special structural problems. The configuration examined in this study was a square twenty eight (28) story reinforced concrete structure, for three (3) different structures: the first one is core wall structure without bracing, the second is core wall structure with bracing system and the third is shear wall structural system. These three different structures subjected to different load combinations, the final result is analyzed. The analysis of the structural form performed using ETABS software program by two methods of analyzing, equivalent static method (static analysis) & response spectrum method (dynamic analysis) and the results of the analysis compared such as, displacement, drift, shear force and moment between the three structures in each methods. The design results presented in tabular form. Keywords: High rise building, Structure Design, Response Spectrum Analysis, Equivalent Static Analysis, ETAB

Istikhdām Wasīlah Youtube Fī Ta’līm Al-Lughah Al-‘Arabiyyah Li Tarqiyah Al-Muyūl Wa Tahṣīl Al-Dirāsī

Penelitian ini membahas tentang problematika pengajaran bahasa Arab karena kurangnya minat, dan rendahnya hasil belajar, hal itu membuat pembelajaran di kelas menjadi pembelajaran yang pasif, rendah antusias, dan kurang efektif. Guru harus kreatif dan inovatif dalam penggunaan alat peraga dengan memanfaatkan perkembangan teknologi. Untuk mengatasi masalah tersebut guru harus menggunakan media pembelajaran yang cocok salahsatunya yaitu youtube agar dapat meningkatkan minat dan hasil belajar bagi para peserta didik. Penelitin ini bertujuan untuk mengetahui minat dan hasil belajar siswa sebleum dan sesudah menggunakan media youtube dan untuk mengetahui peningkatan minat dan hasil belajar siswa setelah menggunakan media youtube pada kelas XI di SMK Karya Bhakti Bandung. Adapaun pendekatan yang digunakan dalam penelitian ini adalah pendekatan kuantitatif dengan menggunakan metode quasi eksperimen dengan dilakukannya pre-test dan post-test.Sumber data yang digunakan dalam penelitian yaitu siswa kelas XI SMK Karya Bhakti Bandung yang berjumlah 51 siswa. Adapun teknik pengumpulan data yang digunakan dalam penelitian ini dilakukan dengan cara observasi, wawancara, tes, angket dan dokumentasi. Hasil penelitian ini adalah bahwa pada minat melalui angket sebelum menggunakan media video youtube menunjukkan nilai hasil rata-rata 50%, dan pada hasil belajar sebelum menggunakan media youtube pada kelas XI di SMK Karya Bhakti Bandung menunjukkan nilai hasil rata-rata 48,8. Setelah penggunaan media youtube hasil minat bertambah menjadi 63,2% dan pada hasil belajar terjadi peningkatan nilai rata-rata menjadi 86,2. Penggunaan media pembelajaran bahasa arab berbasis youtube memberikan pengaruh peningkatan minat dan hasil belajar siswa kelas eksperimen dibuktikan dengan nilai rata-rata score kelas eksperimen adalah sebesar 0.50 atau 50% <w:LsdException Locked="fals

Binary liquid film condensation from water-ammonia vapors mixture flowing downward along a parallel plate condenser

The ammonia-water film condensation is used as an efficient working fluid in industrial applications such as refrigeration, plate condenser and evaporator, absorber/generator heat exchange, air-conditioning, heat pumps and separation processes. The present work focuses on a numerical investigation of water-ammonia condensation on a falling binary liquid film inside a parallel plate condenser by mixed convection. The parallel plate condenser is composed by two parallel vertical plates. One of the plates is wetted by liquidfilm and cooled by the thermal flux cooling while the other plate is isothermal and dry. Parametric computations were performed to investigate the effects of the inlet parameters of gas, the properties of the binary liquid film as well as the thermal flux cooling on the combined mass and heat transfer and on the efficiency of the parallel plate condenser. The results show that an increase in the inlet vapor of ammonia as well as of vapor water enhances the efficiency of the parallel plate condenser. It is shown also that an enhancement of efficiency of the parallel plate condenser has been recorded when the thermal flux cooling and inlet liquid flow rate is elevated. Whereas the increase of the inlet liquid concentration of ammonia inhibits the efficiency of the parallel plate condenser

Lettuce Leaves as Biosorbent Material to Remove Heavy Metal Ions from Industerial Wastewater

The current study was designed to remove Lead, Copper and Zinc from industrial wastewater using Lettuce leaves (Lactuca sativa) within three forms (fresh, dried and powdered) under some environmental factors such as pH, temperature and contact time. Current data show that Lettuce leaves are capable of removing Lead, Copper and Zinc ions at significant capacity. Furthermore, the powder of Lettuce leaves had highest capability in removing all metal ions. The highest capacity was for Lead then Copper and finally Zinc. However, some examined factors were found to have significant impacts upon bioremoval capacity of studied ions, where best biosorption capacity was found at pH 4, at temperature 50º C and contact time of 1 hour

Exploring the use of pulsed erbium lasers to retrieve a zirconia crown from a zirconia implant abutment

Background Removal of cement-retained implant fixed restorations when needed, can be challenging. Conventional methods of crown removal are time consuming and costly for patients and practitioners. This research explored the use of two different types of pulsed erbium lasers as a non-invasive tool to retrieve cemented zirconia crowns from zirconia implant abutments. Materials and methods Twenty identical zirconia crowns were cemented onto 20 identical zirconia prefabricated abutments using self-adhesive resin cement. The specimens were divided into two groups for laser assisted crown removal; G1 for erbium-doped yttrium aluminum garnet laser (Er:YAG), and G2 for erbium, chromium-doped yttrium, scandium, gallium and garnet (Er,Cr:YSGG). For the G1, after the first crown removal, the specimens were re-cemented and removed again using the Er:YAG laser. Times needed to remove the crowns were recorded and analyzed using ANOVA (α = 0.05). The surfaces of the crown and the abutment were further examined using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) analyses. Results The average times of zirconia crown removal from zirconia abutments were 5 min 20 sec and 5 min 15 sec for the Er:YAG laser of first and second experiments (G1), and 5 min 55 sec for the Er,Cr:YSGG laser experiment (G2). No statistical differences were observed among the groups. SEM and EDS examinations of the materials showed no visual surface damaging or material alteration from the two pulsed erbium lasers. Conclusions Both types of pulsed erbium lasers can be viable alternatives for retrieving a zirconia crown from a zirconia implant abutment. Despite operating at different wavelengths, the Er:YAG and Er,Cr:YSGG lasers, perform similarly in removing a zirconia crown from a zirconia implant abutment with similar parameters. There are no visual and elemental composition damages as a result of irradiation with pulsed erbium lasers

A Qualitative Survey Study in Managing Patient Obesity for Exploring Self Efficacy among Saudi General Practitioners

This study aimed at investigate the management of obesity patients for exploring the self-efficacy among Saudi general practitioners in a qualitative survey methodology, by conducting interviews that were recorded digitally and transcribed verbatim by a professional transcription service. DE identified data were transferred into NVivo 10 for data organisation and coding. Data were analysed independently by the researchers and coded using social cognitive theory as a guiding framework. Twenty GPs recruited via a snowball sampling strategy to deliver a pilot of an obesity management program (“The Change Program”) participated in semi structured interviews before commencing the pilot. Of the 20 participating GPs (twelve  males and eight female), ages ranged between 33 and 55, and years working in general practice ranged between 5 and 25. The Interviews were face-to-face and were conducted in June and July of 2017. The study concluded that shifting the frame away from weight loss per se and towards these other goals might therefore allow for a more authentic GP-patient interaction and increase the self-efficacy of both GP and patient for healthy lifestyle changes