Journal of Polymer Science Part A-2 Polymer Physics
Crystals of poly-trans-1,4-butadiene of uniform size have been grown from three solvents (n-hepta... more Crystals of poly-trans-1,4-butadiene of uniform size have been grown from three solvents (n-heptane, methyl isobutyl ketone, and toluene) by using a minimum dissolution temeprature technique. The percentage of double bonds available for reaction in the crystals was determined by epoxidation in suspension; crystal thicknesses were measured by electron microscopy. These values were used to calculate the number of monomer units per fold. The number of available double bonds was found to increase with decreasing molecular weight, evidence for the presence of non-reentrant chains (cilia) at the crystal surfaces. The nature of the chain fold in poly-trans-1,4-butadiene crystals is discussed.
Objectives: We examined patterns of death from nasopharyngeal cancer (NPC) in a cohort of approxi... more Objectives: We examined patterns of death from nasopharyngeal cancer (NPC) in a cohort of approximately 100,000 Vietnam veterans who applied for claims to the Agent Orange Veteran Payment Program (AOVPP). Methods: The study population consists of two subcohorts: a) 14,926 deceased veterans whose claims to the AOVPP were filed by their next of kin between 19791994 (decedent subcohort), and b) an additional 84,010 veterans (40% were disabled) who filed claims with AOVPP while still alive and were followed from receipt of claim through 1998 (disability subcohort). Cause of death information was obtained using National Death Index (NDI) searches, and we identified NPC (ICD-9 147) in both subcohorts. Proportional cancer mortality ratios (PCMR) were calculated for the decedent subcohort and standardized mortality ratios (SMR) were calculated for the disability subcohort. Additionally, to compensate for higher death rates in disabled persons relative to the general U.S. population, relativ...
... February. 1973. 22. Bowers. I. 2.. Special Problemsof Women Medical Students, JournalofMedica... more ... February. 1973. 22. Bowers. I. 2.. Special Problemsof Women Medical Students, JournalofMedicalEducation. 43:352. May. 1%8. 23. ... 1973. pp. 333-356. Kaley. MM. Attitudes Toward the Dual Roleof the Married Professional Woman. American Psychologist. 26:301-...
ABSTRACT The heat of transition from Form I to Form II, ΩHt, and from Form II to the melt have be... more ABSTRACT The heat of transition from Form I to Form II, ΩHt, and from Form II to the melt have been measured by DSC for poly(trans-1,4-butadiene) crystals prepared from three solvents: heptane, toluene, and benzene. Broad-line NMR measurements were obtained on PTBD crystals from heptane and toluene in the dry state and wetted with a nonprotonated solvent, CS2. The ΩHt values and the NMR narrow line-broad line intensity ratios support earlier assertions, based on a comparison of IR and epoxidation results, concerning the location of the amorphous regions in PTBD cyrstals.
A random sample of American Legion members in six states who had served in the Armed Forces durin... more A random sample of American Legion members in six states who had served in the Armed Forces during the Vietnam Era was conducted through a mailed questionnaire, in order to determine patterns of usage of Veterans Administration health facilities, as well as attitudes toward the VA and experiences at these facilities. Of the 6810 male respondents, 42.0% had served in Southeast Asia. These subjects were categorized according to their level of combat in South Vietnam. Thirty-six percent of those who had served in Southeast Asia had used VA health facilities, compared to only 18% of men who served elsewhere. Among Southeast Asia veterans, combat level was an important predictor of extent of usage of VA facilities for problems of both physical and mental health. Combat level was also associated with lack of basic and major medical insurance. While men with lower incomes tended to make greater use of VA mental health facilities, nearly one-fourth of mental health users had family incomes above $30,000. Despite their greater usage of the VA, men with higher combat levels expressed lower feelings of security about this agency, and rated its staff less helpful and of lower quality than did men who experienced lower levels of combat. On the other hand, higher combat veterans thought themselves better informed about VA services. Men who had gone to the VA for mental health assistance reported a disturbingly low frequency of having been asked basic questions that relate to possible diagnosis of post-traumatic stress disorder (PTSD), questions related to combat, which may be one of its etiologic factors, or other questions relating to their military history. Because combat level in Vietnam veterans is a major determinant of both attitudes toward and utilization of VA health facilities, the VA as well as other health agencies which deal with Vietnam veterans should be especially sensitive to this factor, and should take it into consideration when evaluating veterans' physical and mental health.
One aspect of a cross-sectional questionnaire study of a sample of Vietnam veterans belonging to ... more One aspect of a cross-sectional questionnaire study of a sample of Vietnam veterans belonging to The American Legion was devoted to analysis of social and behavioral consequences of service in Southeast Asia. Members of the study population were stratified by whether they served in Southeast Asia and, within the Southeast Asia group, by varying degrees of exposure to combat and to herbicides. Using validated scales for behavioral affect and for the exposure measures for combat and herbicides, a wide range of adverse effects was observed. Men who faced high levels of combat intensity were found to be at greater risk for divorce and for generally being less happy and satisfied with their lives, their marriages, their role as fathers, and as sexual human beings. Although in this population they have reached comparatively high levels of education, they earn significantly less money than peers of their same age and educational attainment. Vietnam veterans returning from combat were found to exhibit higher levels of behavioral disturbances, with mean scores for depression, anxiety, irritation, feelings of helplessness, and physical signs of depression significantly worse than noncombat peers. The lifestyle of combat veterans also continues to place them at greater risk for poor health. They smoke, drink, and use prescription drugs at rates significantly greater than the other veterans in this study. Combat veterans have had a significantly poorer rate of reduction and cessation of smoking and drinking than others in this population. Evidence is also presented which shows that for some of the behavioral outcomes measured, a negative interactive effect of concurrent exposure to herbicides is present.
Journal of Polymer Science Part A-2 Polymer Physics
Crystals of poly-trans-1,4-butadiene of uniform size have been grown from three solvents (n-hepta... more Crystals of poly-trans-1,4-butadiene of uniform size have been grown from three solvents (n-heptane, methyl isobutyl ketone, and toluene) by using a minimum dissolution temeprature technique. The percentage of double bonds available for reaction in the crystals was determined by epoxidation in suspension; crystal thicknesses were measured by electron microscopy. These values were used to calculate the number of monomer units per fold. The number of available double bonds was found to increase with decreasing molecular weight, evidence for the presence of non-reentrant chains (cilia) at the crystal surfaces. The nature of the chain fold in poly-trans-1,4-butadiene crystals is discussed.
Objectives: We examined patterns of death from nasopharyngeal cancer (NPC) in a cohort of approxi... more Objectives: We examined patterns of death from nasopharyngeal cancer (NPC) in a cohort of approximately 100,000 Vietnam veterans who applied for claims to the Agent Orange Veteran Payment Program (AOVPP). Methods: The study population consists of two subcohorts: a) 14,926 deceased veterans whose claims to the AOVPP were filed by their next of kin between 19791994 (decedent subcohort), and b) an additional 84,010 veterans (40% were disabled) who filed claims with AOVPP while still alive and were followed from receipt of claim through 1998 (disability subcohort). Cause of death information was obtained using National Death Index (NDI) searches, and we identified NPC (ICD-9 147) in both subcohorts. Proportional cancer mortality ratios (PCMR) were calculated for the decedent subcohort and standardized mortality ratios (SMR) were calculated for the disability subcohort. Additionally, to compensate for higher death rates in disabled persons relative to the general U.S. population, relativ...
... February. 1973. 22. Bowers. I. 2.. Special Problemsof Women Medical Students, JournalofMedica... more ... February. 1973. 22. Bowers. I. 2.. Special Problemsof Women Medical Students, JournalofMedicalEducation. 43:352. May. 1%8. 23. ... 1973. pp. 333-356. Kaley. MM. Attitudes Toward the Dual Roleof the Married Professional Woman. American Psychologist. 26:301-...
ABSTRACT The heat of transition from Form I to Form II, ΩHt, and from Form II to the melt have be... more ABSTRACT The heat of transition from Form I to Form II, ΩHt, and from Form II to the melt have been measured by DSC for poly(trans-1,4-butadiene) crystals prepared from three solvents: heptane, toluene, and benzene. Broad-line NMR measurements were obtained on PTBD crystals from heptane and toluene in the dry state and wetted with a nonprotonated solvent, CS2. The ΩHt values and the NMR narrow line-broad line intensity ratios support earlier assertions, based on a comparison of IR and epoxidation results, concerning the location of the amorphous regions in PTBD cyrstals.
A random sample of American Legion members in six states who had served in the Armed Forces durin... more A random sample of American Legion members in six states who had served in the Armed Forces during the Vietnam Era was conducted through a mailed questionnaire, in order to determine patterns of usage of Veterans Administration health facilities, as well as attitudes toward the VA and experiences at these facilities. Of the 6810 male respondents, 42.0% had served in Southeast Asia. These subjects were categorized according to their level of combat in South Vietnam. Thirty-six percent of those who had served in Southeast Asia had used VA health facilities, compared to only 18% of men who served elsewhere. Among Southeast Asia veterans, combat level was an important predictor of extent of usage of VA facilities for problems of both physical and mental health. Combat level was also associated with lack of basic and major medical insurance. While men with lower incomes tended to make greater use of VA mental health facilities, nearly one-fourth of mental health users had family incomes above $30,000. Despite their greater usage of the VA, men with higher combat levels expressed lower feelings of security about this agency, and rated its staff less helpful and of lower quality than did men who experienced lower levels of combat. On the other hand, higher combat veterans thought themselves better informed about VA services. Men who had gone to the VA for mental health assistance reported a disturbingly low frequency of having been asked basic questions that relate to possible diagnosis of post-traumatic stress disorder (PTSD), questions related to combat, which may be one of its etiologic factors, or other questions relating to their military history. Because combat level in Vietnam veterans is a major determinant of both attitudes toward and utilization of VA health facilities, the VA as well as other health agencies which deal with Vietnam veterans should be especially sensitive to this factor, and should take it into consideration when evaluating veterans' physical and mental health.
One aspect of a cross-sectional questionnaire study of a sample of Vietnam veterans belonging to ... more One aspect of a cross-sectional questionnaire study of a sample of Vietnam veterans belonging to The American Legion was devoted to analysis of social and behavioral consequences of service in Southeast Asia. Members of the study population were stratified by whether they served in Southeast Asia and, within the Southeast Asia group, by varying degrees of exposure to combat and to herbicides. Using validated scales for behavioral affect and for the exposure measures for combat and herbicides, a wide range of adverse effects was observed. Men who faced high levels of combat intensity were found to be at greater risk for divorce and for generally being less happy and satisfied with their lives, their marriages, their role as fathers, and as sexual human beings. Although in this population they have reached comparatively high levels of education, they earn significantly less money than peers of their same age and educational attainment. Vietnam veterans returning from combat were found to exhibit higher levels of behavioral disturbances, with mean scores for depression, anxiety, irritation, feelings of helplessness, and physical signs of depression significantly worse than noncombat peers. The lifestyle of combat veterans also continues to place them at greater risk for poor health. They smoke, drink, and use prescription drugs at rates significantly greater than the other veterans in this study. Combat veterans have had a significantly poorer rate of reduction and cessation of smoking and drinking than others in this population. Evidence is also presented which shows that for some of the behavioral outcomes measured, a negative interactive effect of concurrent exposure to herbicides is present.
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