scholarly journals Climate variations: Risk factor of commiting suicide

2011 ◽  
Vol 64 (3-4) ◽  
pp. 202-205 ◽  
Author(s):  
Caslav Milic ◽  
Sanja Kocic ◽  
Snezana Radovanovic

Introduction. Recently there have been more and more attempts at getting into connection the frequency of suicide with climate factors, humidity changes, atmospheric pressure. A large number of authors agree that suicide has meteorological character and that weather can be a provoking factor in suicidal persons. Suicides happen most frequently when the weather is warm, stable, and sunny; then, when it is rainy, cloudy and with high humidity, and least frequently when the atmospheric pressure and temperature are decreased accompanied with wind. Climate variations and suicide. Men who commit suicide show a significant, positive connection with indicators of temperature and exposure to sun, and a significant, negative connection with indicators of humidity and rainfall. Women who commit suicide show a less significant connection with climate variations - indicators. Violent and non-violent suicide. Regarding violent and nonviolent suicide, it has been proved that violent suicide is affected by environmental temperature, sunny intervals, raise in temperature in the previous few weeks. Higher envi?ronmental temperature and increase in air temperature in the previous few weeks are the most significant climate factors influencing the violent suicide rate. In addition, each degree exceeding 18?C increases the violent suicide rate by 3.8-5%. Conclusion. The result of many investigations of the influence of climate factors on committing suicide is that the suicide incidence reaches its peak during early summer. Also, the sun radiation the day before suicidal event is significantly connected with the increased suicidal risk. There is a difference between sexes. If the sun were a trigger, men would have to be exposed to it for a longer time than women.

1988 ◽  
Vol 102 ◽  
pp. 329
Author(s):  
R.W.P. McWhirter

The intensity of a specrtal line from an optically thin plasma such as the outer atmosphere of the sun depends on both the atomic properties of the atomic ion responsible for the line and the physical nature of the plasma. In this paper we discuss the various ways in which the measured spectral intensities from the sun are used to discover something about the nature of the sun’s atmosphere. The technique has been referred to as the emission measure method. It has important limitations in terms of the accuracy of the specrtal data as well as the atomic data. We discuss some of these and suggest methods by which they may be assessed. The technique is illustrated by application to real observations from a number of authors.


2020 ◽  
Vol 12 (7) ◽  
pp. 1113
Author(s):  
Shahid Naeem ◽  
Yongqiang Zhang ◽  
Jing Tian ◽  
Faisal Mueen Qamer ◽  
Aamir Latif ◽  
...  

Accurate assessment of vegetation dynamics provides important information for ecosystem management. Anthropogenic activities and climate variations are the major factors that primarily influence vegetation ecosystems. This study investigates the spatiotemporal impacts of climate factors and human activities on vegetation productivity changes in China from 1985 to 2015. Actual net primary productivity (ANPP) is used to reflect vegetation dynamics quantitatively. Climate-induced potential net primary productivity (PNPP) is used as an indicator of climate change, whereas the difference between PNPP and ANPP is considered as an indicator of human activities (HNPP). Overall, 91% of the total vegetation cover area shows declining trends for net primary productivity (NPP), while only 9% shows increasing trends before 2000 (base period). However, after 2000 (restoration period), 78.7% of the total vegetation cover area shows increasing trends, whereas 21.3% of the area shows decreasing trends. Moreover, during the base period, the quantitative contribution of climate change to NPP restoration is 0.21 grams carbon per meter square per year (gC m−2 yr−1) and to degradation is 2.41 gC m−2 yr−1, while during the restoration period, climate change contributes 0.56 and 0.29 gC m−2 yr−1 to NPP restoration and degradation, respectively. Human activities contribute 0.36 and 0.72 gC m−2 yr−1 during the base period, and 0.63 and 0.31 gC m−2 yr−1 during the restoration period to NPP restoration and degradation, respectively. The combined effects of climate and human activities restore 0.65 and 1.11 gC m−2 yr−1, and degrade 2.01 and 0.67 gC m−2 yr−1 during the base and restoration periods, respectively. Climate factors affect vegetation cover more than human activities, while precipitation is found to be more sensitive to NPP change than temperature. Unlike the base period, NPP per unit area increases with an increase in the human footprint pressure during the restoration period. Grassland has more variability than other vegetation classes, and the grassland changes are mainly observed in Tibet, Xinjiang, and Inner Mongolia regions. The results may help policy-makers by providing necessary guidelines for the management of forest, grassland, and agricultural activities.


1992 ◽  
Vol 20 (4) ◽  
pp. 645-659 ◽  
Author(s):  
James L. Werth

One of the issues arising out of the increasing incidence of acquired immunodeficiency syndrome (AIDS) is whether or not suicide may be considered to be a rational choice for a person with AIDS. In an effort to address this dilemma, this article begins by reviewing the literature pertaining to suicide and persons with terminal illnesses. Then, after recounting the suicide rate for persons with AIDS, it explores some of the physical and psychosocial factors that may be a part of a decision by a person with AIDS to commit suicide. Siegel's criteria for a rational suicide are applied to the case of a person with AIDS. In addition, the role of the psychotherapist in the decision-making process is critically examined, as are some arguments against allowing suicide. Finally, suggestions for future directions by counseling psychologists are offered.


1905 ◽  
Vol 74 (497-506) ◽  
pp. 90-95 ◽  
Author(s):  
Joseph Norman Lockyer ◽  
William J. S. Lockyer

The ordinary meteorological elements, such as atmospheric pressure, temperature, etc., have a yearly change satisfactorily explained as due to changes of the position of the earth’s axis in relation to the sun, or, in other words, the variation of the sun’s declination. There are, however, other phenomena, such as magnetic disturbances and auroræ, which have been explained differently. Thus, in regard to this seasonal variation Mr. Ellis has written, “The related physical circumstance is that at the equinoxes, when disturbance is more frequent, the whole surface of the earth comes under the influence of the sun, whilst at the solstices, when magnetic disturbance is less frequent, a portion of the surface remains for a considerable period in shadow.”


PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8626 ◽  
Author(s):  
Wei Su ◽  
Ti Liu ◽  
Xingyi Geng ◽  
Guoliang Yang

Background Influenza is a disease under surveillance worldwide with different seasonal patterns in temperate and tropical regions. Previous studies have conducted modeling of influenza seasonality using climate variables. This study aimed to identify potential meteorological factors that are associated with influenza seasonality in Jinan, China. Methods Data from three influenza sentinel hospitals and respective climate factors (average temperature, relatively humidity (RH), absolute humidity (AH), sunshine duration, accumulated rainfall and speed of wind), from 2013 to 2016, were collected. Statistical and wavelet analyses were used to explore the epidemiological characteristics of influenza virus and its potential association with climate factors. Results The dynamic of influenza was characterized by annual cycle, with remarkable winter epidemic peaks from December to February. Spearman’s correlation and wavelet coherence analysis illuminated that temperature, AH and atmospheric pressure were main influencing factors. Multiple wavelet coherence analysis showed that temperature and atmospheric pressure might be the main influencing factors of influenza virus A(H3N2) and influenza virus B, whereas temperature and AH might best shape the seasonality of influenza virus A(H1N1)pdm09. During the epidemic season, the prevalence of influenza virus lagged behind the change of temperature by 1–8 weeks and atmospheric pressure by 0.5–3 weeks for different influenza viruses. Conclusion Climate factors were significantly associated with influenza seasonality in Jinan during the influenza epidemic season and the optional time for influenza vaccination is before November. These finding should be considered in influenza planning of control and prevention.


1988 ◽  
Vol 123 ◽  
pp. 33-36
Author(s):  
A.B. Severny ◽  
V.A. Kotov ◽  
T.T. Tsap

The Earth atmospheric pressure fluctuations in the 5-min range of periods are analysed and their influence on observations of solar 5-min oscillations are briefly discussed. New series of observations confirmed the oscillations of the Sun with period of 160.010 min.


1993 ◽  
Vol 1 (1) ◽  
pp. 17-37 ◽  
Author(s):  
Elizabeth Atwood Lawrence

AbstractFor many tribes of Plains Indians whose bison-hunting culture flourished during the 18th and 19th centuries, the sun dance was the major communal religious ceremony. Generally held in late spring or early summer, the rite celebrates renewal-the spiritual rebirth of participants and their relatives as well as the regeneration of the living earth with all its components. The sun dance reflects relationships with nature that are characteristic of the Plains ethos, and includes symbolic representations of various animal species, particularly the eagle and the buffalo, that once played vital roles in the lives of the people and are still endowed with sacredness and special powers. The ritual, involving sacrifice and supplication to insure harmony between all living beings, continues to be practiced by many contemporary native Americans.


1997 ◽  
Vol 171 (5) ◽  
pp. 468-472 ◽  
Author(s):  
Annakatri Ohberg ◽  
Antti Penttila ◽  
Jouko Lonnqvist

BackgroundTo study driver suicides, all motor vehicle driver fatalities in Finland from 1987 to 1991 were analysed.MethodCases were collected from all driver fatalities (n=1419), as those that accident investigation teams considered possible suicides (n=99). Drivers committing suicide classified according to ICD–9 by two forensic pathologists were selected as cases (n=84). Drivers of unintentional motor vehicle fatalities served as the control group.ResultsWhile 5.9% of all driver fatalities were classified as suicides, the figure given in the official statistics was 2.6%. Driver suicides accounted for 1.2% of all suicides. Fifty per cent of driver suicides were committed by men aged between 15 and 34 years. The victims had often suffered from life-event stress, mental disorders and had alcohol misuse problems. The cases were usually head-on collisions between two vehicles with a large weight disparity.ConclusionsMisclassification of driver suicides does not significantly influence the total suicide rate. However, people who commit suicide by this method could often be recognised, and prevention of these events would improve traffic safety.


1980 ◽  
Vol 46 (3) ◽  
pp. 924-926 ◽  
Author(s):  
Alan Marks

The relationship between occupational status, from 1950–1971, for white males residing in the state of Washington and the probability of suicide is examined. The Edwards scale of socioeconomic grouping is used as an indicator of socioeconomic status; and the Proportionate Mortality Ratio as an indicator of relative suicidal risk by occupation. 183 occupations were ranked into eight socioeconomic levels. We found no relationship between socioeconomic status and the suicide rate.


2012 ◽  
Vol 65 (9-10) ◽  
pp. 415-420 ◽  
Author(s):  
Sanja Kocic ◽  
Snezana Radovanovic ◽  
Dragan Vasiljevic ◽  
Mirjana Milosavljevic ◽  
Gordana Djordjevic ◽  
...  

Introduction. The rates of suicide are two to three times higher in men than in women in all communities. This ?gender paradox? can be explained by various factors, such as more impulsive nature of men and their choice of more efficient (more lethal) methods to commit suicide. This study was aimed at finding the correlation between the gender and other suicidal factors. Material and Methods. The study sample consisted of persons who committed suicide on the territory of Kragujevac in the period from 1996 to 2001. This study was based on the records kept by the Ministry of the Interior as well as by the Psychiatric Clinic of the Clinical Centre ?Kragujevac?. Data for weather were obtained from the Serbian Meteorological Institute reports. Results. During the analyzed period 121 suicides were committed on the territory of Kragujevac. The gender structure showed that within persons who committed suicide there were 78.5% men and 21.5% women (p<0.01). As for diseases which had existed before suicide, women suffered from the underlying psychic disorder in 65.3%, while 50.5% of men had both a psychic disorder and addiction problem. Hanging was the most frequently used method by both men and women (57.9% and 65.4%, respectively); and home was chosen as the place to commit suicide by 49.5% men and 42.3% women. Both men and women had a behaviour disorder before suicide, in 75.8% and 88.4% of the cases, respectively, (p<0.01). The dominating motive was a disease in 17.9% of men, whereas family problems prevailed in 11.5% of women (p<0.01). Conclusion. There is a statistically important difference between men and women considering pre-suicidal behaviour, suicidal motive and suicidal frequency.


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