Menopause and its management: A review

Menopausal transition (premenopause) is the phase in the ageing process of women representing the transition from the reproductive stage of life to the non-reproductive stage. With improvements in average life expectancy, women live an increased proportion of their lives in the postmenopause. The consequences of oestrogen loss are the early symptoms (psychological and vasomotor), the genitourinary syndrome (intermediate), as well as postmenopausal osteoporosis with increased risk of fractures and cardiovascular diseases (late). The diagnosis of climacteric syndrome is based on typical clinical symptoms. Perimenopausal women should understand physiological changes occurring in menopausal transition. They should be encouraged to live a healthy lifestyle. Menopausal hormone therapy is indicated for relief of the acute symptoms of menopause and for treatment of urogenital atrophy. It should be administered in the lowest effective dose for the shortest period of time. The treatment should be initiated before the age of 60 years or within 10 years after menopause in order to decrease its risks. The benefit/risk profile needs to be individually re-assessed every year.

Climatological study of the cyclonic storms crossing the east coast of India

Us ~n ~ Poisson distribution the probabil.ity of cyclonic storms crossing each latitude stripon the cast coast of India In a month In a random to-year period l'i com puted and presented in the raper. v ariouscharacteristics of the cyclonic systems such as average speed of movement s, average life spa n and the averagedistan ce travelled alon gwith the coefficient s uf variation before and after crossing the coast are examined anddiscussed here.

A PROENVIRONMENTAL VALUE CONSTRUCT TO DEAL WITH PLASTIC POLLUTION

Plastics are man-made synthetic materials. They are made mostly from crude oil even though natural gas and coal could also be used for manufacturing plastics. The multiplicity of its uses together with its versatile properties has made it indispensable to modern living. The average life of plastics differs in various industrial sectors. The generation of waste depends on the mean-product lifetime of the product into which plastics have been integrated. And when this waste is not handled properly (recycled or incinerated under controlled environment), the problem of pollution emerges. Plastics in the form of microplastics have been found in food chains as well, threatening human wellbeing. A model to better understand the source - use and afteruse of plastics is the central focus of this article. It looks at the need for building a sustainable model to deal with plastic pollution.

Geometric imperfect preventive maintenance and replacement (GIPMAR) model for aging repairable systems

PurposeThis work seeks to develop a geometric imperfect preventive maintenance (PM) and replacement model (GIPMAR) for aging repairable systems due to age and prolong usage that would meet users need in three phases: within average life span, beyond average life span and beyond initial replacement age of system.Design/methodology/approachThe authors utilized the geometric process (GP) as the hazard function to characterize the increasing failure rate (IFR) of the system. The GP hazard function was incorporated into the hybridized preventive and replacement model of Lin et al. (2000). The resultant expected cost rate function was optimized to obtain optimum intervals for PM/replacement and required numbers of PM per cycle. The proposed GIPMAR model was applied to repairable systems characterized by Weibull life function and the results yielded PM/replacement schedules for three different phases of system operation.FindingsThe proposed GIPMAR model is a generalization of Lin et al. (2000) PM model that were comparable with results of earlier models and is adaptive to situations in developing countries where systems are used across the three phases of operation depicted in this work. This may be due to economic hardship and operating environment.Practical implicationsThe proposed model has provided PM/Replacement schedules for different phases of operation which was never considered. This would provide a useful guide to maintenance engineers and end-users in developing countries with a view to minimizing the average cost of maintenance as well as reducing the number of down times of systems.Social implicationsA duly implemented GIPMAR model would ensure efficient operation of systems, optimum man-hour need in the organization and guarantee customer's goodwill in a competitive environment.Originality/valueIn this work, the authors have extended Lin et al. (2000) PM model to provide PM/replacement schedules for aging repairable systems which was not provided for in earlier existing models and literature.

Population of Chernigov in the 10th–13th Centuries According to Paleodemographic Data

The work is devoted to the 10th–13th-century paleodemographic data regarding the city of Chernigov and its districts, and to their introduction into the scientific domain. The study is based on the data on the anthropological series of Chernigov in the 10th–13th centuries, divided into three samples according to the topographic principle. This series is characterized by a low average life expectancy in comparison to other southern Old Rus cities. The feature of the necropolises of Chernigov indicating the predominance of female burials over male ones, revealed in the 1980s, has been confirmed at a new level. A study of the demographic parameters of the Chernigov population groups in the 10th–13th centuries, united on a territorial basis, has shown differences in their structure, probably reflecting the peculiarities of the life quality, social status, and professional specialization of the population of different parts of the city. Further research into the remains of the city’s population with methods of paleopathology, osteometry, osteoscopy, radiology, etc., as well as the analysis of aspects of the political history of the region, would help shed light on the possible causes of the identified features of the demographic structure of the population in the pre-Mongolian period.

Seasonal Variations in the Dynamics of the Number and Biomass of the Black Sea Macrozooplankton Populations

The abundance and biomass dynamics of the jellyfish Aurelia aurita and ctenophores-invadors Mnemiopsis leidyi and Beroe ovata in 2019 on the northeastern shelf of the Black Sea were studied. Data on the maxima of reproduction of each species of gelatinous macrozooplankton were obtained, as well as conclusions on the dynamics of individuals growth in populations and average life expectancy were drawn.

Clinical and radiological assessment of the condition of implants with fixed structures in the dynamics of 20-year follow-up

The statistically significant long-term results of the implant survival and the effectiveness of prostheses are inadequately represented in scientific literature. The study was aimed to assess the effectiveness of prosthetics with fixed structures on the intraosseous dental implants for the replacement of partially absent dentition in the dynamics of the 20-year follow-up. A total of 671 patients with partially missing teeth were examined at the Clinical Center of Dentistry of the FMBA of Russia, who were fitted with 1,700 intraosseous titanium dental implants with the terms from the moment of completion of prosthetics on implants of 5, 10, 15 or 20 years. The criteria for clinical and radiological evaluation of the implant condition were as follows: no complications affecting the condition of periimplant tissues (normal), mucositis, periimplantitis with bone resorption at 1/3 or 1/2 of the implant height, implant removal. Based on 20 years of experience, prosthetics with fixed structures on implants is highly effective in replacing the partial defects of dentition. In total, 62.2% of implants remain functional for 20 years. The average life of implant-supported fixed prostheses is 15 years for bridges, and 20 years for single and combined implant-supported crowns. The most effective are single implant-supported crowns, and the least effective are prostheses supported by implants and teeth. The significantly preserved implant-supported prostheses make it possible to support the concept of the long-term implant installation with respect to the implant-supported non-removable prostheses. The view is thus confirmed that the effectiveness of the implant-supported prosthetics is reduced with the inclusion of teeth in the bridge support, along with implants.

Ageing and ocular problems

Ageing is a common problem in modern societies. Due to sophisticated new methods in medicine, the average life expectancy significantly increased in recent years. 70 is the new 50. The new principles of food intake and processing, more exercise, and less smoking contributed to a health benefits and a longer life span of human kind. Nevertheless, there are the special problems of ageing. Numerous dysfunctions of the body may arise affecting a broad range of organs and the musculoskeletal system. The eye can also be severely affected by ageing. Vision gained more importance recently especially during the COVID-19 pandemic. Elderly people who never used computers before, had to learn computer technology in order to communicate with their family and to accomplish their everyday tasks or pay their bills. Therefore, good near vision has become crucial for elderly people. In this review article the most common ageing problems of the eye, therapies and pathophysiology of ageing processes will be reviewed and discussed. There are physiological problems of ageing and there are ocular pathologies which can be treated efficiently in time to preserve near and far visual acuity.

Valuation of Trust in Government: The Wellbeing Valuation Approach

Subjective wellbeing maximization is a possible goal of government or public policies, and it is often considered the goal of individual life. This paper proposes an estimation using the Wellbeing Valuation Approach (WVA) to estimate the monetized effect of trust in government. Using a cross-country panel data set for 97 countries in the period from 2011 to 2019, we arrive at three main findings. First, there is a positive relationship between trust in national government and average life satisfaction. Second, trust in the national government has a global median value of Intl$ 5649 per person a year in foregone income. Third, trust affects life satisfaction directly as well as indirectly through per capita GDP. This indirect effect is considered relatively small compared to the direct effect, being approximately six times smaller. This study contributes to the policy evaluation literature by providing an evaluation of trust in government to be used as a proxy to plan future investment or policy assessment.

Determinants of Women's Economic Empowerment in Selected Arab Countries for the Period (2000-2018)

This study examines the determinants of economic empowerment of women in selected Arab countries (Iraq, Qatar, the Kingdom of Saudi Arabia, Jordan, the Arab Republic of Egypt and Algeria) during the period (2000-2018), using the usual small squares method, and in this study we reviewed the concept and the economic determinants that affect empowerment Women, which in turn affect all other variables in these countries, the most important of which are the political and social aspects. In order to know the specific factors for women's economic empowerment, the study adopted the quantitative method to estimate these factors which are (the ratio of women’s enrollment in secondary education to males, average life expectancy at birth for males and females, fertility rate, per capita GDP). The results of the study found that the most important factors affecting the economic empowerment of women in most Arab countries are health, the proportion of women’s enrollment in secondary education to males, average life expectancy at birth for males and females, per capita gross domestic product that had a significant and positive impact, while the fertility rate was found. It appeared morally and negatively.