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Uri Gabbay - One of the best experts on this subject based on the ideXlab platform.

  • Relationship between suicide and myocardial infarction with regard to changing Physical Environmental Conditions
    International Journal of Biometeorology, 1995
    Co-Authors: Eliahu Stoupel, Eugeny Abramson, Jaqueline Sulkes, Joseph Martfel, Nechama Stein, Meir Handelman, Michael Shimshoni, Pnina Zadka, Uri Gabbay
    Abstract:

    In recent years, the possible association of changes in mortality from cardiovascular disease and myocardial infarction (MI) and deaths related to violence and the suicide rate has been repeatedly discussed. This study examined the relationship between cosmic Physical changes (solar, geomagnetic and other space activity parameters) and changes in the total number of in-hospital and MI-related deaths and deaths from suicide to determine if a relationship exists between the distribution of total and MI-related deaths with suicide over time; some differences in the serotonergic mechanisms involved in the pathogenesis of MI and suicide were also taken into account. All suicides ( n =2359) registered in the State of Israel from 1981 to 1989 (108 months) were analysed and compared with the total number of deaths ( n =15601) and deaths from MI ( n =1573) in a large university hospital over 180 months (1974–1989). The following were the main features of the Results. (1) Monthly suicide rate was correlated with space proton flux ( r =0.42, P =0.0001) and with geomagnetic activity ( r =−0.22, P =0.03). (2) Total hospital and MI-related deaths were correlated with solar activity parameters ( r =0.35, P

  • relationship between suicide and myocardial infarction with regard to changing Physical Environmental Conditions
    International Journal of Biometeorology, 1995
    Co-Authors: Eliahu Stoupel, Eugeny Abramson, Jaqueline Sulkes, Joseph Martfel, Nechama Stein, Meir Handelman, Michael Shimshoni, Pnina Zadka, Uri Gabbay
    Abstract:

    In recent years, the possible association of changes in mortality from cardiovascular disease and myocardial infarction (MI) and deaths related to violence and the suicide rate has been repeatedly discussed. This study examined the relationship between cosmic Physical changes (solar, geomagnetic and other space activity parameters) and changes in the total number of in-hospital and MI-related deaths and deaths from suicide to determine if a relationship exists between the distribution of total and MI-related deaths with suicide over time; some differences in the serotonergic mechanisms involved in the pathogenesis of MI and suicide were also taken into account. All suicides (n=2359) registered in the State of Israel from 1981 to 1989 (108 months) were analysed and compared with the total number of deaths (n=15601) and deaths from MI (n=1573) in a large university hospital over 180 months (1974–1989). The following were the main features of the Results. (1) Monthly suicide rate was correlated with space proton flux (r=0.42,P=0.0001) and with geomagnetic activity (r=−0.22,P=0.03). (2) Total hospital and MI-related deaths were correlated with solar activity parameters (r=0.35,P<0.001) and radiowave propagation (r=0.52-0.44,P<0.001), an with proton flux (r=−0.3 to −0.26,P<0.01). (3) Monthly suicide distribution over 108 months was correlated with MI (r=−0.33,P=0.0005) and total hospital mortality (r=−0.22,P=0.024). (4) Gender differences were prominent. We conclude that the monthly distributions of suicides and deaths from MI are adversely related to many Environmental Physical parameters and negatively correlated with each other.

D.m. Avery - One of the best experts on this subject based on the ideXlab platform.

  • Physical Environment and Site Choice in South Africa
    Journal of Archaeological Science, 1995
    Co-Authors: D.m. Avery
    Abstract:

    Abstract Physical Environmental factors (effectively climate and, through it, food supply) influence the distribution of humanity as they do that of other species, although the human response is mediated through technology and cognition. It is clear that these factors will have greater importance in marginal habitats, however great the level of technology. The latter merely has the effect of allowing penetration into regions uninhabitable without suitable artificial support; it does not remove the influence of adverse Conditions. Given that much of South Africa suffers from a chronic shortage of water it is of particular relevance to examine the role of Physical Environmental Conditions in human behaviour and settlement patterns. It is suggested that the circumstances surrounding initial occupation and subsequent abandonment of archaeological sites may well be especially instructive for understanding the role of environment in human decision-making. Three case studies illustrate the potential of this line of investigation for shedding light on matters as diverse as the arrival of early modern humans in South Africa some 150,000 years ago, the introduction of sheep about 2000 years ago and the penetration of the first European stock-herders into the interior around 300 years ago.

H A Sudibyakto - One of the best experts on this subject based on the ideXlab platform.

  • Effects of the Occupational Physical Environmental Conditions and the Individual Characteristics of the Workers on Occupational Stress and Fatigue
    International Journal of Public Health Science (IJPHS), 2012
    Co-Authors: Birowo Herusasongko, Adi Heru Husodo, H A Sudibyakto
    Abstract:

    This research was conducted to study the effects of Environmental factors i.e. heat stress, thermal comfort, and occupational noise and individual factors of the workers i.e. age, work duration (expressed in months), and nutrition status on occupational fatigue and stress. Occupational fatigue was measured using Reaction Timer L-77 Lakassidaya. Occupational stress was measured using questionnaire adapted from Wambrauw (2010). Heat stress and thermal comfort were measured using Questemp 34 Thermal Environment Meter and Lutron AM-4200 Anemometer. Occupational noise level was measured using Lutron SL-4022 Sound Level Meter. Nutrition status was measured using microtoise and body weight scale. Age and work duration was obtained using a personal profile form filled in by each worker. This research employed Structural Equation Modelling (SEM) consisted of direct and indirect effects of exogenous and endogenous variables on endogenous variables. Data analysis was conducted using AMOS 19 software. Data analysis showed that (1) different level of fatigue was indicated on workers working in different work shifts, (2) there was no direct effects of heat stress and  thermal comfort on occupational fatigue, (3) there was a positive direct effect of occupational noise on workers stress but there was no indication that the stress itself has a direct effect on occupational fatigue, thus preventing the indirect effect of occupational noise on occupational fatigue, (4) there was no direct effect of the age of the workers on occupational fatigue, (5) there was a positive direct effect of the workers age on work duration, but the work duration itself did not exhibit any effect on occupational fatigue so therefore no indirect effect of workers age on occupational fatigue was found in this research, (6) and finally, there was a positive direct effect of nutrition status on occupational fatigue. DOI: http://dx.doi.org/10.11591/ijphs.v1i2.1251

V. K. Arora - One of the best experts on this subject based on the ideXlab platform.

  • Effect of mosaic representation of vegetation in land surface schemes on simulated energy and carbon balances
    Biogeosciences, 2012
    Co-Authors: V. K. Arora
    Abstract:

    Abstract. Energy and carbon balance implications of representing vegetation using a composite or mosaic approach in a land surface scheme are investigated. In the composite approach the attributes of different plant functional types (PFTs) present in a grid cell are aggregated in some fashion for energy and water balance calculations. The resulting Physical Environmental Conditions (including net radiation, soil moisture and soil temperature) are common to all PFTs and affect their ecosystem processes. In the mosaic approach energy and water balance calculations are performed separately for each PFT tile using its own vegetation attributes, so each PFT "sees" different Physical Environmental Conditions and its carbon balance evolves somewhat differently from that in the composite approach. Simulations are performed at selected boreal, temperate and tropical locations to illustrate the differences caused by using the composite versus mosaic approaches of representing vegetation. These idealized simulations use 50% fractional coverage for each of the two dominant PFTs in a grid cell. Differences in simulated grid averaged primary energy fluxes at selected sites are generally less than 5% between the two approaches. Simulated grid-averaged carbon fluxes and pool sizes at these sites can, however, differ by as much as 46%. Simulation results suggest that differences in carbon balance between the two approaches arise primarily through differences in net radiation which directly affects net primary productivity, and thus leaf area index and vegetation biomass.

  • Effect of mosaic representation of vegetation in land surface schemes on simulated energy and carbon balances
    Biogeosciences Discussions, 2011
    Co-Authors: V. K. Arora
    Abstract:

    Abstract. Energy and carbon balance implications of representing vegetation using a composite or mosaic approach in a land surface scheme are investigated. In the composite approach the attributes of different plant functional types (PFTs) present in a grid cell are aggregated in some fashion for energy and water balance calculations. The resulting Physical Environmental Conditions (including net radiation, soil moisture and soil temperature) are common to all PFTs and affect their ecosystem processes. In the mosaic approach energy and water balance calculations are performed separately for each PFT tile using its own vegetation attributes, so each PFT "sees" different Physical Environmental Conditions and its carbon balance evolves somewhat differently from that in the composite approach. Simulations are performed at selected boreal, temperate and tropical locations to illustrate the differences caused by using the composite versus the mosaic approaches of representing vegetation. Differences in grid averaged primary energy fluxes are generally less than 5 % between the two approaches. Grid-averaged carbon fluxes and pool sizes can, however, differ by as much as 46 %. Simulation results suggest that differences in carbon balance between the two approaches arise primarily through differences in net radiation which directly affects net primary productivity, and thus leaf area index and vegetation biomass.

Eliahu Stoupel - One of the best experts on this subject based on the ideXlab platform.

  • Relationship between suicide and myocardial infarction with regard to changing Physical Environmental Conditions
    International Journal of Biometeorology, 1995
    Co-Authors: Eliahu Stoupel, Eugeny Abramson, Jaqueline Sulkes, Joseph Martfel, Nechama Stein, Meir Handelman, Michael Shimshoni, Pnina Zadka, Uri Gabbay
    Abstract:

    In recent years, the possible association of changes in mortality from cardiovascular disease and myocardial infarction (MI) and deaths related to violence and the suicide rate has been repeatedly discussed. This study examined the relationship between cosmic Physical changes (solar, geomagnetic and other space activity parameters) and changes in the total number of in-hospital and MI-related deaths and deaths from suicide to determine if a relationship exists between the distribution of total and MI-related deaths with suicide over time; some differences in the serotonergic mechanisms involved in the pathogenesis of MI and suicide were also taken into account. All suicides ( n =2359) registered in the State of Israel from 1981 to 1989 (108 months) were analysed and compared with the total number of deaths ( n =15601) and deaths from MI ( n =1573) in a large university hospital over 180 months (1974–1989). The following were the main features of the Results. (1) Monthly suicide rate was correlated with space proton flux ( r =0.42, P =0.0001) and with geomagnetic activity ( r =−0.22, P =0.03). (2) Total hospital and MI-related deaths were correlated with solar activity parameters ( r =0.35, P

  • relationship between suicide and myocardial infarction with regard to changing Physical Environmental Conditions
    International Journal of Biometeorology, 1995
    Co-Authors: Eliahu Stoupel, Eugeny Abramson, Jaqueline Sulkes, Joseph Martfel, Nechama Stein, Meir Handelman, Michael Shimshoni, Pnina Zadka, Uri Gabbay
    Abstract:

    In recent years, the possible association of changes in mortality from cardiovascular disease and myocardial infarction (MI) and deaths related to violence and the suicide rate has been repeatedly discussed. This study examined the relationship between cosmic Physical changes (solar, geomagnetic and other space activity parameters) and changes in the total number of in-hospital and MI-related deaths and deaths from suicide to determine if a relationship exists between the distribution of total and MI-related deaths with suicide over time; some differences in the serotonergic mechanisms involved in the pathogenesis of MI and suicide were also taken into account. All suicides (n=2359) registered in the State of Israel from 1981 to 1989 (108 months) were analysed and compared with the total number of deaths (n=15601) and deaths from MI (n=1573) in a large university hospital over 180 months (1974–1989). The following were the main features of the Results. (1) Monthly suicide rate was correlated with space proton flux (r=0.42,P=0.0001) and with geomagnetic activity (r=−0.22,P=0.03). (2) Total hospital and MI-related deaths were correlated with solar activity parameters (r=0.35,P<0.001) and radiowave propagation (r=0.52-0.44,P<0.001), an with proton flux (r=−0.3 to −0.26,P<0.01). (3) Monthly suicide distribution over 108 months was correlated with MI (r=−0.33,P=0.0005) and total hospital mortality (r=−0.22,P=0.024). (4) Gender differences were prominent. We conclude that the monthly distributions of suicides and deaths from MI are adversely related to many Environmental Physical parameters and negatively correlated with each other.