Light Desynchronosis and Health

2019 ◽  
pp. 14-25
Author(s):  
Vladimir N. Anisimov

The review summarizes the modern knowledge of the impact of day-night, light-darkness rhythm disorders on the aging process and on the risk of development of the age-related conditions. Significant evidence has been obtained of that the constant artificial illumination and the daylight of the North has a stimulating effect on the occurrence and de-velopment of tumours in laboratory animals. It has been shown that long-term shift work, trans-meridian flights (jet-lag) and insomnia increase the risk of cardiovascular diseases, diabetes mellitus, and ma-lignancies in humans. Particular attention is given to the studies where the relationship between light intensity, light wavelength and its ability to suppress the synthesis of melatonin produced at night in the pineal gland, are investigated. It has been established that melatonin synthesis is most effectively suppressed with blue light sources of a wave-length from 446 to 477 nm. The use of exogenous melatonin prevents premature aging of the reproductive system and the body as a whole prevents the development of immunesuppression, metabolic syndrome and tumours caused by light pollution. An urgent task is to develop recommendations for optimizing the illumination of workplaces and res-idential premises, of cities and towns as a preven-tion measure for premature aging and age-related pathology, which, ultimately, will contribute to the long-term maintaining of performance and improv-ing the quality of life.

Author(s):  
M. S. Bugaeva ◽  
O. I. Bondarev ◽  
N. N. Mikhailova ◽  
L. G. Gorokhova

Introduction. The impact on the body of such factors of the production environment as coal-rock dust and fluorine compounds leads to certain shift s in strict indicators of homeostasis at the system level. Maintaining the relative constancy of the internal environment of the body is provided by the functional consistency of all organs and systems, the leading of which is the liver. Organ repair plays a crucial role in restoring the structure of genetic material and maintaining normal cell viability. When this mechanism is damaged, the compensatory capabilities of the organ are disrupted, homeostasis is disrupted at the cellular and organizational levels, and the development of the main pathological processes is noted.The aim of the study is to compare the morphological mechanisms of maintaining structural homeostasis of the liver in the dynamics of the impact on the body of coal-rock dust and sodium fluoride.Materials and methods. Experimental studies were conducted on adult white male laboratory rats. Features of morphological mechanisms for maintaining structural homeostasis of the liver in the dynamics of exposure to coal-rock dust and sodium fluoride were studied on experimental models of pneumoconiosis and fluoride intoxication. For histological examination in experimental animals, liver sampling was performed after 1, 3, 6, 9, 12 weeks of the experiment.Results. The specificity of morphological changes in the liver depending on the harmful production factor was revealed. It is shown that chronic exposure to coal-rock dust and sodium fluoride is characterized by the development of similar morphological changes in the liver and its vessels from the predominance of the initial compensatory-adaptive to pronounced violations of the stromal and parenchymal components. Long-term inhalation of coal-rock dust at 1–3 weeks of seeding triggers adaptive mechanisms in the liver in the form of increased functional activity of cells, formation of double-core hepatocytes, activation of immunocompetent cells and endotheliocytes, ensuring the preservation of the parenchyma and the general morphostructure of the organ until the 12th week of the experiment. Exposure to sodium fluoride leads to early disruption of liver compensatory mechanisms and the development of dystrophic changes in the parenchyma with the formation of necrosis foci as early as the 6th week of the experiment.Conclusions. The study of mechanisms for compensating the liver structure in conditions of long-term exposure to coal-rock dust and sodium fluoride, as well as processes that indicate their failure, and the timing of their occurrence, is of theoretical and practical importance for developing recommendations for the timely prevention and correction of pathological conditions developing in employees of the aluminum and coal industry.The authors declare no conflict of interests.


Author(s):  
Robert H. Ellison

Prompted by the convulsions of the late eighteenth century and inspired by the expansion of evangelicalism across the North Atlantic world, Protestant Dissenters from the 1790s eagerly subscribed to a millennial vision of a world transformed through missionary activism and religious revival. Voluntary societies proliferated in the early nineteenth century to spread the gospel and transform society at home and overseas. In doing so, they engaged many thousands of converts who felt the call to share their experience of personal conversion with others. Though social respectability and business methods became a notable feature of Victorian Nonconformity, the religious populism of the earlier period did not disappear and religious revival remained a key component of Dissenting experience. The impact of this revitalization was mixed. On the one hand, growth was not sustained in the long term and, to some extent, involvement in interdenominational activity undermined denominational identity; on the other hand, Nonconformists gained a social and political prominence they had not enjoyed since the middle of the seventeenth century and their efforts laid the basis for the twentieth-century explosion of evangelicalism in Africa, Asia, and South America.


Author(s):  
Yao Li ◽  
Haoyang Li ◽  
Jianqing Ruan

The natural environment is one of the most critical factors that profoundly influences human races. Natural disasters may have enormous effects on individual psychological characteristics. Using China’s long-term historical natural disaster dataset from 1470 to 2000 and data from a household survey in 2012, we explore whether long-term natural disasters affect social trust. We find that there is a statistically significant positive relationship between long-term natural disaster frequency and social trust. We further examine the impact of long-term natural disaster frequency on social trust in specific groups of people. Social trust in neighbors and doctors is stronger where long-term natural disasters are more frequent. Our results are robust after we considering the geographical difference. The effect of long-term natural disasters remains positively significant after we divide the samples based on geographical location. Interestingly, the impact of long-term flood frequency is only significant in the South and the impact of long-term drought frequency is only significant in the North.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Cassandra R. Davis ◽  
Sarah R. Cannon ◽  
Sarah C. Fuller

PurposeThe purpose of this paper is to identify and describe the long-term impacts of hurricanes on schools and discuss approaches to improving recovery efforts.Design/methodology/approachInterviews with 20 school districts in Texas and North Carolina after Hurricanes Harvey (2017) and Matthew (2016). In total, 115 interviews were conducted with teachers, principals, district superintendents and representatives from state education agencies. Interview questions focused on the impact of storms and strategies for recovery.FindingsThe authors uncovered three long-term impacts of hurricanes on schools: (1) constrained instructional time, (2) increased social-emotional needs and (3) the need to support educators.Research limitations/implicationsThis paper focuses on two storms, in two states, in two successive years. Data collection occurred in Texas, one academic year after the storm. As compared to the North Carolina, data collection occurred almost two academic years after the storm.Practical implicationsThis paper illuminates strategies for stakeholders to implement and expedite hurricane recovery through; (1) updating curricula plans, (2) providing long-term counselors and (3) supporting educators in and out of school.Originality/valueTo date, very few studies have explored the ways in which schools face long-term impacts following a disaster. This paper provides insight to the challenges that prolong the impacts of disasters and impede recovery in schools. With hurricanes and related disasters continuing to affect schooling communities, more research is needed to identify the best ways to support schools, months to years after an event.


Author(s):  
Ainorrofiqie Ainorrofiqie ◽  
Umrotul Khasanah ◽  
Akhmad Djalaluddin

This research aims to explore the model of financial management tradition Lalabet in the village of Babbalan District Batuan Sumenep. This study is based on the fact that occurred in the community about the implementation of traditions carried out by the heirs to family members who died. Interpretative qualitative research is used and an in-depth understanding of a problem that occurs is emphasized more. Based on the results of this study, the financial management tradition Lalabet can be done based on accounting equations. The accounts contained in the accounting equation is not used in its entirety and are reported as are generally financial statements. In this case, the source of funds in carrying out Lalabet tradition is sourced from personal money, money and donations from the family, money from Muslimat, debt, and money or goods from Lalabet's proceeds. The impact is the onset of debt both short-term and long-term. While the expenditure is in the form of costs in taking care of the body, costs for tahlilan (petto'arean), pa'polo, nyatos, nyataon, nyaebu, mangaji, ngin-tangin, nyalenin mayyid, and ajege makam (kep-sekep).


2019 ◽  
Vol 96 (8) ◽  
pp. 766-769 ◽  
Author(s):  
Inessa V. Averyanova ◽  
S. I. Vdovenko ◽  
A. L. Maksimov

Natural and climatic conditions of the environment of Northeast Russia and particularly Magadan region are the very factor mostly influencing adaptive responses by individuals inhabiting the region. Compensatory and adaptive responses in indigenes and newcomers of the region can be assumed to have their specific features. In 2009 there was executed the examination of the cardiovascular and respiratory systems and gas exchange in 392 cases aged of 17-19 years, including Europeans (Caucasians) born in the North in the 1st-2nd generation and indigenes. The methodologically similar study was carried out in 2014 in 265 persons, referred to the same cohorts of North-born Caucasians and Indigenes from the Magadan region. The results of the study executed in 2009 testified to a small number of physiological parameters that were reliably different in Caucasians vs. Indigene subjects. In 2014 no difference was found between the two examined cohorts throughout the observed parameters. The revealed changes in gas exchange, external respiration and cardiovascular systems demonstrated by modern young Indigenes of Northeast Russia testified to the fall in the effectiveness of their breathing. All that makes them farther from the classic “polar metabolic type” and their morphofunctional status becomes closer to European male subjects of Northeast Russia. Thus, we can observe a clear tendency towards “convergence in programs” of the adaptive changes between populations of the North residents undergoing similar natural, environmental and social factors.


Author(s):  
Д.А. Еникеев ◽  
Л.Т. Идрисова ◽  
О.А. Еникеев ◽  
К.О. Кузнецов ◽  
Д.Р. Ахмадеева ◽  
...  

В статье представлены актуальные данные экспериментальных и клинических исследований по изучению влияния различных средств доставки никотина в организм курильщика. Проведён сравнительный анализ воздействия табачных сигарет, электронных средств доставки никотина и системы нагревания табака IQOS на показатели здоровья и развития организма человека, а также лабораторных животных. Показано, что, несмотря на громкие заявления производителей альтернативных средств доставки никотина о полной безвредности их устройств, результаты экспериментальных исследований обнаруживают в них не только известные канцерогены, но и новые потенциально опасные вещества, которые не содержатся в обычных сигаретах, и влияние которых на организм достаточно не изучено. На данный момент имеются все основания полагать, что употребление электронных сигарет и IQOS может приводить к заболеваниям нервной, кроветворной, иммунной, дыхательной систем, а также к развитию онкологических заболеваний. The article presents current results of experimental and clinical studies focusing on effects of various nicotine delivery systems. The authors conducted a comparative analysis of the impact of tobacco cigarettes, electronic nicotine delivery devices, and IQOS tobacco heating systems on the health and development of humans and laboratory animals. The review of recent literature has shown that, despite ambitious statements of the manufacturers about complete safety of their devices, experiments have demonstrated that they release not only well-known carcinogens but also new, potentially hazardous substances. These substances are not contained in ordinary cigarettes, and their effects on the body has not been sufficiently studied. Presently, it seems very likely that the use of electronic cigarettes and IQOS can lead to diseases of the nervous, hematopoietic, immune, and respiratory systems as well as to oncological diseases.


2008 ◽  
Vol 22 (S1) ◽  
Author(s):  
Ian R Lanza ◽  
Daniel K Short ◽  
Kevin R Short ◽  
Yan W Asmann ◽  
Sreekumar Raghavakaimal ◽  
...  

2019 ◽  
Vol 11 (1) ◽  
pp. 125-148
Author(s):  
Andrew Dillon ◽  
Ram Fishman

Hydrological investments, particularly irrigation dams, have multiple potential benefits for economic development. Dams also have financial, environmental, and distributional impacts that can affect their benefits and costs. This article reviews the evidence on the impact of dams on economic development, focusing on the levels and variability of agricultural productivity, and its effect on poverty, health, electricity generation, and flood control. We also review the evidence on irrigation efficiency and collective action of dam maintenance. Throughout the discussion, we highlight the empirical challenges that restrict the body of causally interpretable impact estimates and areas in which the evidence is particularly thin. We conclude with a discussion of emerging issues pertaining to the long-term sustainability of dams’ impacts and suggest directions for future research.


2017 ◽  
Vol 43 (4) ◽  
pp. 315-320 ◽  
Author(s):  
Vedran Premuzic ◽  
Drazen Perkov ◽  
Ranko Smiljanic ◽  
Bruna Brunetta Gavranic ◽  
Bojan Jelakovic

Background/Aims: The aim of this study was to examine the impact of different catheter tip positions on the life of the catheter, dysfunction, infection, and quality of hemodialysis and possible differences between the access site laterality in jugular-tunneled hemodialysis catheters. Methods: Catheters were evaluated for the following parameters: place of insertion, time of insertion, duration of use, and reason for removal. In all patients, the catheter tip position was checked using an X-ray. Results: The mean duration of implanted catheters with the tip placed in the cavo-atrial junction and right atrium was significantly longer. There were no differences in catheter functionality at follow-up or complications based on catheter laterality for each catheter tip position. Conclusion: According to our results, the localization of the catheter tip in superior vena cava still remains the least preferable method. Our results showed that the main factor responsible for better catheter functionality was not laterality but the depth to which the catheter tip is inserted into the body.


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