scholarly journals RESEARCH ON EMERGING AND DESCENDING AIRCRAFT NOISE / KYLANČIŲ IR BESILEIDŽIANČIŲ ORLAIVIŲ KELIAMO TRIUKŠMO TYRIMAI

2013 ◽  
Vol 5 (4) ◽  
pp. 337-342
Author(s):  
Monika Bartkevičiūtė ◽  
Raimondas Grubliauskas

Along with an increase in the aircraft engine power and growth in air traffic, noise level at airports and their surrounding environs significantly increases. Aircraft noise is high level noise spreading within large radius and intensively irritating the human body. Air transport is one of the main sources of noise having a particularly strong negative impact on the environment. The article deals with activities and noises taking place in the largest nationwide Vilnius International Airport.The level of noise and its dispersion was evaluated conducting research on the noise generated by emerging and descending aircrafts in National Vilnius Airport. Investigation was carried out at 2 measuring points located in a residential area. There are different types of aircrafts causing different sound levels. It has been estimated the largest exceedances that occur when an aircraft is approaching. In this case, the noisiest types of aircrafts are B733, B738 and AT72. The sound level varies from 70 to 85 dBA. The quietest aircrafts are RJ1H and F70. When taking off, the equivalent of the maximum sound level value of these aircrafts does not exceed the authorized limits. The paper describes the causes of noise in aircrafts, the sources of origin and the impact of noise on humans and the environment. Article in Lithuanian. Santrauka Padidėjus orlaivių variklių galiai ir daugėjant skrydžių, labai padidėjo oro uostuose ir šalia jų esančiose apylinkėse skleidžiamo triukšmo lygis. Lėktuvo keliamas triukšmas išsiskiria aukštu garso slėgio lygiu bei dideliu spinduliu sklindančiu garsu ir yra labiausiai dirginantis žmogaus organizmą. Orlaivių transportas – vienas pagrindinių triukšmo šaltinių, darantis ypač didelę neigiamą įtaką aplinkai. Nagrinėjamas Tarptautiniame Vilniaus oro uoste kylančių ir tupiančių orlaivių keliamas triukšmas. Triukšmo tyrimai atlikti gyvenamojoje aplinkoje greta oro uosto parinktose matavimo vietose. Pateikiami įvairių orlaivių tipų sukeliamo garso stiprumo – garso slėgio lygiai. Didžiausias leistinųjų verčių viršijimas nustatomas orlaiviams leidžiantis. Triukšmingiausi B733, B738 ir AT72 tipo orlaiviai – garso slėgio lygis 70–85 dBA. Vieni tyliausių orlaivių – RJ1H ir F70. Jiems kylant ekvivalentinės ir maksimalios garso slėgio lygio reikšmės neviršija leidžiamųjų. Aprašomos orlaivių keliamo triukšmo priežastys, kilimo šaltiniai. Nagrinėjamas triukšmo poveikis žmogui ir aplinkai.

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Piotr F. Czempik ◽  
Agnieszka Jarosińska ◽  
Krystyna Machlowska ◽  
Michał P. Pluta

Abstract Sleep disruption is common in patients in the intensive care unit (ICU). The aim of the study was to measure sound levels during sleep-protected time in the ICU, determine sources of sound, assess the impact of sound levels and patient-related factors on duration and quality of patients' sleep. The study was performed between 2018 and 2019. A commercially available smartphone application was used to measure ambient sound levels. Sleep duration was measured using the Patient's Sleep Behaviour Observational Tool. Sleep quality was assessed using the Richards-Campbell Sleep Questionnaire (RCSQ). The study population comprised 18 (58%) men and 13 (42%) women. There were numerous sources of sound. The median duration of sleep was 5 (IQR 3.5–5.7) hours. The median score on the RCSQ was 49 (IQR 28–71) out of 100 points. Sound levels were negatively correlated with sleep duration. The cut-off peak sound level, above which sleep duration was shorter than mean sleep duration in the cohort, was 57.9 dB. Simple smartphone applications can be useful to estimate sound levels in the ICU. There are numerous sources of sound in the ICU. Individual units should identify and eliminate their own sources of sound. Sources of sound producing peak sound levels above 57.9 dB may lead to shorter sleep and should be eliminated from the ICU environment. The sound levels had no effect on sleep quality.


Author(s):  
Марина Владиславовна Минстер

В статье рассматриваются причины и факторы, способствующие возникновению пенитенциарного стресса у осужденных к лишению свободы женщин. Стресс как субъективная реакция психики на изоляцию от общества больше связан с воздействием пенитенциарной среды и способствует развитию деструктивных проявлений у женщин, что негативно влияет на исправительное воздействие и часто проявляется на стадии адаптации и перед освобождением. В гендерном аспекте результаты исследования показали, что осужденные к лишению свободы мужчины проявляют устойчивость к стрессорным воздействиям при высоком уровне стресса, депрессивные состояния среди них в несколько раз меньше, чем у женщин. Пенитенциарный стресс у женщин является более контрастным, так как уровень психоэмоциональных переживаний выше и требуется значительно больше времени для восстановления, чем мужчинам. Исследуется практика применения индивидуальных и групповых психокоррекционных методик, осуществляемых в процессе исполнения наказания, которые создают условия для самоисправления женщины. Оптимизация исправительного воздействия возможна при условии включения осужденных женщин в воспитательно-ресоциализационные и социально-реабилитационные программы с учетом психофизиологических особенностей и анализа психодинамики их активности, с использованием дополнительного положительного влияния близких родственников и общественности на разных этапах отбывания наказания. The article discusses the causes and factors contributing to stress in prison of persons sentenced to deprivation of liberty of women. Stress as a subjective reaction of the psyche to isolation from society is more related to the impact of the prison environment and contributes to the development of destructive manifestations in women, which negatively affects the corrective effect and often manifests itself at the stage of adaptation and before release. In the gender aspect, the results of the study showed that men sentenced to imprisonment show resistance to stress at a high level of stress, depression among them several times less, unlike women. Penitentiary stress in women is more contrast, because the level of psycho-emotional experiences is higher and it takes much more time to recover than men. The author of the article studies the practice of applying individual and group psychocorrection techniques carried out in the process of execution of punishment, which create conditions for self-correction of women. Optimization of treatment possible, subject to the inclusion of women offenders in a correctional reintegration and social rehabilitation programme taking into account psycho-physiological characteristics and analysis of the psychodynamics of activity, using the influence of relatives and the public at various stages of punishment.


2021 ◽  
Author(s):  
Ayoub Smaqaey ◽  
◽  
Mohammed AbdulKareem ◽  
Meryem Komşu ◽  
◽  
...  

The purposes of this research are to examine the impact of traffic noise on the sale and rent prices of the housing real estate in the Sulaimaniyah city center. Besides, highlight the concept of traffic noise pollution in general and in particular in the Sulaimaniyah city center. Thus, people have the right to choose the nature of the acoustic environment, as others should not impose it, the problem of traffic noise considered as one of the main problems that have imposed on the people in Sulaimaniyah city center. Which began to take severe economic and social dimensions, affects the decision-making process in the real estate market. Moreover, consequently, this research analyzes the impact of traffic noise pollution in the sale and rent prices of residential property in Sulaimaniyah city center, the results of the research have confirmed a clear and negative impact the traffic noise on residential real estate prices in Sulaimaniyah city center. Finally, the research indorsed range of important recommendations, such as necessity control the noise pollution at the level of governments and companies, either at the companies’ level by choosing vehicles that release less sound and the use of sound control devices of high efficiency. Either at the government level to determine the volume level or prevent annoying noises (painful), through legislation and laws of environmental protection and impose fees and raise awareness.


Author(s):  
N. V. Shishkina ◽  
E. A. Mamistova ◽  
T. V. Sabetova

This paper tackles the economic impacts of COVID-19 pandemic on the labor markets and human capital. Specifically, it looks into the issues the pandemic brought upon the human resources and personnel during coronavirus lockdowns. The high level of globalization characteristic of the modern economy has only exacerbated the negative impact of the pandemic. At the moment, it remains impossible to assess the qualitative and quantitative parameters of the damage caused to the economies of countries and regions by this event. However, it is possible to identify the main directions of analysis of the consequences of the pandemic, including in terms of the impact on the state of the labor market, which was the main goal of this study. In particular, the authors highlight a number of consequences, the work on overcoming which is still to be done by the Russian socio-economic system. The most obvious of them is the growth of unemployment, the release of part of the employed and the reduction in the number of jobs, and this is observed extremely unevenly across the sectors of the economy. Nevertheless, the authors point out that the problem of staff release is aggravated by the size of the share of informal employment in the labor market, especially in the sectors of public catering, leisure and tourism that have been most affected by the pandemic. As the second important problem, the authors point to ineffective staff reduction, the dismissal of useful and valuable employees of some organizations while maintaining an unnecessarily bloated staff of others. It also mentions the reasons and forms of staff retention, some of which, being either forced or economically and technologically attractive, give rise to additional problems. The authors call an important social consequence of the pandemic a reduction in the number and level of personal contacts in society, in particular, in working groups. As a result, the author's vision of the long-term consequences of current events for the state of the labor market, employment of the population and the economy as a whole is proposed.)


Author(s):  
Yuliia Romanovska ◽  
Lily Strapachuk

The article considers the approaches to the interpretation of the category "shadow economy", which causes a variety of approaches to assessing the impact of the shadow economy on the socio-economic development of Ukraine. The spread of the pandemic and the complication of economic conditions, formed as a result of the introduction of forced restrictive measures, have led to the growth of the shadow economy in Ukraine. The index of shadowing of the economic sphere in relation to the inflation index and the level of the state budget deficit has been studied. The factors that led to the shadowing of the economy and caused the growth of the share of the shadow sector in the economy of Ukraine are highlighted. The main components of shadow employment are identified. Business entities operating in the shadow sector have significantly more competitive advantages and much higher efficiency than legally operating businesses. As a result, such enterprises are an obstacle to the flow of funds to the budgets of all levels of the country, and as a consequence, have a negative impact on socio-economic development in general. In recent years, state budget expenditures have been growing too slowly, which indicates a high level of shadowing of the economy in conditions of high inflation and, consequently, negatively affects the socio-economic security of society. Budget expenditures are closely linked to public policy, which allows the state to curb the level of economic shadowing through measures to reform relevant areas. It is investigated that the State budget expenditures grow too slowly, which indicates a high level of shadowing of the economy in conditions of high inflation. The paper substantiates the reasons for the growth of the shadow economy and identifies the main measures to reduce shadow employment, the manifestations of which are the deformation of social and economic institutions of the state. The de-shadowing of the economy provides citizens with the right to social protection, in the form of social guarantees in case of unemployment, temporary incapacity for work, accidents or occupational diseases during official work, pensions, etc.


Syntax Idea ◽  
2021 ◽  
Vol 3 (3) ◽  
pp. 611
Author(s):  
Ramelia Dwi Anisa ◽  
Rusdinal Rusdinal ◽  
Firman Firman

Coronavirus Diseases (Covid-19) is one of the many viruses that can attack humans, ranging from those without symptoms, with mild symptoms to severe symptoms. What is known is that the incubation period for Covid-19 in the human body ranges from 5-6 days and the longest incubation period is 14 days. In the current Covid-19 era, there are a lot of social activities in society that are not disturbed and cannot even be done to anticipate the spread of Covid-19 in their neighborhood. There are also community activities that have undergone changes and concerts must be carried out as a result of Covid-19. The purpose of this study was to identify the impact of Covid-19 on the social activities of the people of Lubuklinggau City. This research uses descriptive field research with qualitative research methods. The data techniques used in this study were observation, documentation and interviews and used descriptive analysis methods as data analysis techniques. The results obtained from the impact are anything that arises as a result of changes that occur in people's lives and can produce a change with a positive impact and a negative impact on the survival of the community. The results obtained in conducting research related to the impact of Covid-19 on community activities, the authors found that there are impacts that arise as a result of the existence of Covid-19, both positive and negative impacts that appear in the midst of society today


2021 ◽  
Vol 29 (3) ◽  
Author(s):  
Ngudi Tjahjono ◽  
Imam Hanafi ◽  
Latipun Latipun ◽  
Suyadi Suyadi

Noise due to motorized vehicles is a major problem in urban areas which can interfere with physiological and psychological health. This study aims to determine the extent of noise levels outside and inside the house around the function of different roads in Malang City, East Java, Indonesia. The study was conducted by measuring the traffic noise level using a sound level meter. Measurements were taken in the afternoon between 16.00-21.00 during the peak of heavy traffic and outside working hours when residents were already at home. Statistical Student’s t-test analysis was used to test differences in the average noise level outside and inside the house on each road function. Variance analysis was used to compare noise levels around primary arterial roads, secondary arteries, primary collectors, secondary collectors, primary local, and secondary local. From the measurement results, it is known that the noise due to motorized vehicles is 84.28 dB on average. This exceeds the threshold based on the Decree of the State Minister for the Environment Number 48 of 1996. There was a significant difference in noise level between outside and inside the house on each road function. There was no significant difference in noise level between the functions of the road segments both outside and inside the house. The results of the study concluded that the traffic noise level at 16:00 to 21:00 hours on all roads that were targeted for research exceeds the national threshold. It is recommended that the level of traffic noise around roads in the city of Malang can be reduced to minimize the negative impact on physiological and psychological health.


Author(s):  
Eun Woo Na ◽  
Ho-Wuk Kim ◽  
Sang Kwon Lee

Vehicles experience the impact due to harsh road conditions. Contact with a barrier on a road induces vehicles to vibrate, which brings about impact noise of high sound level. The attenuation of impact noise is an important issue since car passengers may complain about the impact noise. However, Perfect removal of impact noise is not possible as most of impact noise is caused by external conditions. It is thus necessary to make vehicles to possess more desirable sound quality characteristic of impact sound. More research is needed on objective attributes of impact noise; it is not a simple matter since impact noise is transient in nature and has a high level of sound at an instantaneous moment. A new objective attribute of impact noise is designed by using wavelet transform. Wavelet transform is appropriate for the analysis of transient signals such as impact noise. The usefulness of new objective attribute, which is a sound metric, is examined by comparison with the mean subjective rating for real impact noise of passenger cars. The new sound metric has better correlation with the mean subjective rating than already existing sound metrics.


Author(s):  
Nataliya A. Pivnitskaya ◽  
Sergey A. Perekhod

The article presents an empirical analysis of the impact of the political and economic consequences of financial crises on the development of entrepreneurship in the regions of Russia. Entrepreneurship development contributes to economic growth and can play an important role in stimulating long-term sustainable development, as well as reducing unemployment by creating jobs. The data sample of the study covers the period from 2006 to 2016. Two groups of indicators are considered: institutional and economic. The first group includes indicators of the effectiveness of the judicial system and the level of criminality. The second group includes indicators characterizing the degree of integration of the Russian companies into the global economy. In addition, the indicators of the quality of social infrastructure, the degree of intercompany competition, market density and some others are taken into account. Model assessment is based on the OLS method. This paper shows that the effectiveness of the judicial system in resolving disputes related to non-compliance with contracts and non-payment of debts does not affect the business development in Russia. However, one of the main problems faced by Russian business owners is the high level of corruption. Moreover, the weak diversification of the Russian economy is a key factor in the negative impact of external economic shocks. We found a significant role of factors like the size of the internal regional market and the share of residents connected to the Internet. The latter factor shows that at present information technologies play an important role in modern Russian business, creating additional opportunities for expanding existing businesses as well as creating new ones. We came to the conclusion that the problem of corruption is growing, as a significant barrier to companies entering the market.


2003 ◽  
Vol 37 (4) ◽  
pp. 35-40 ◽  
Author(s):  
Arthur N. Popper ◽  
Jane Fewtrell ◽  
Michael E. Smith ◽  
Robert D. McCauley

Anthropogenic sound in the marine environment continues to increase. Sound sources range from increased vessel traffic to transient but intense sounds such as those produced by seismic air guns, pile driving, or some sonars. While most interest in anthropogenic sounds has focused on marine mammals, there is an increasing concern regarding the impact of such sounds on fishes and marine invertebrates. Since the inner ear hearing receptors of fishes are similar to those of marine mammals, any effects seen on the hearing receptors of marine mammals may also be found in fishes and vice versa. Despite increasing interest in the effects of sounds on fishes, this issue has only been addressed on the most limited scale. Here we review the current literature in this area. It has been reported that high sound levels can damage the inner ear sensory cells, produce hearing loss (threshold shifts), elicit stress responses, and alter the behavior of fishes. At least in terms of hearing loss, these effects are modulated by exposure sound level and duration. The effects of various types of sound (e.g., impulsive vs. continuous) and long-term impacts of how anthropogenic sounds affect the behavior and ecology of fishes need exploration in the future.


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