Michael P Kramer
Bar-Ilan University, English Literature and Linguistics, Faculty Member
Research Interests:
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... 1951 Alfred Kazin, A Walker in the City. Julius and Ethel Rosenberg convicted of espionage for the Soviet Union. Sentenced to death by Judge Irving Kaufman. Executed in 1953. ... 1976 Irving Howe, World of Our Fathers. Marge Piercy,... more
... 1951 Alfred Kazin, A Walker in the City. Julius and Ethel Rosenberg convicted of espionage for the Soviet Union. Sentenced to death by Judge Irving Kaufman. Executed in 1953. ... 1976 Irving Howe, World of Our Fathers. Marge Piercy, Woman on the Edge of Time. ...
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The role of orthogonal polarization modes in pulsar emission is re-examined in view of polarization data of high time resolution. Individual pulse data of PSR B1133+16 at 1.41 GHz, obtained with time resolutions of 1160, 500 and 150 mu s,... more
The role of orthogonal polarization modes in pulsar emission is re-examined in view of polarization data of high time resolution. Individual pulse data of PSR B1133+16 at 1.41 GHz, obtained with time resolutions of 1160, 500 and 150 mu s, were statistically analyzed and the results are presented as probability of occurrence gray-scale maps. Orthogonal modes are recognized in all
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To control the mechanical response of pure and alloyed tantalum requires tailoring the microstructure by carefully controlling thermo-mechanical processing. In this investigation X-ray rocking curves were employed to characterize the... more
To control the mechanical response of pure and alloyed tantalum requires tailoring the microstructure by carefully controlling thermo-mechanical processing. In this investigation X-ray rocking curves were employed to characterize the microstructure and further the understanding of the mechanisms of annealing. Plate material produced from the alloyed tantalum demonstrated annealing stages 300ºC higher than the pure tantalum. Activation energies determined from
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To control the mechanical response of pure and alloyed tantalum requires tailoring the microstructure by carefully controlling thermo-mechanical processing. In this investigation X-ray rocking curves were employed to characterize the... more
To control the mechanical response of pure and alloyed tantalum requires tailoring the microstructure by carefully controlling thermo-mechanical processing. In this investigation X-ray rocking curves were employed to characterize the microstructure and further the understanding of the mechanisms of annealing. Plate material produced from the alloyed tantalum demonstrated annealing stages 300ºC higher than the pure tantalum. Activation energies determined from
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The Parkes multibeam pulsar survey is covering a 10deg-wide strip of the southern Galactic plane from l=260deg to l=50deg. It utilizes a 13-beam receiver operating in the 20-cm band on the Parkes 64-m radio telescope and is much more... more
The Parkes multibeam pulsar survey is covering a 10deg-wide strip of the southern Galactic plane from l=260deg to l=50deg. It utilizes a 13-beam receiver operating in the 20-cm band on the Parkes 64-m radio telescope and is much more sensitive than any previous large-scale survey. Most of the 608 pulsars discovered so far are relatively distant and many are young,
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The Parkes multibeam pulsar survey is covering a 10deg-wide strip of the southern Galactic plane from l=260deg to l=50deg. It utilizes a 13-beam receiver operating in the 20-cm band on the Parkes 64-m radio telescope and is much more... more
The Parkes multibeam pulsar survey is covering a 10deg-wide strip of the southern Galactic plane from l=260deg to l=50deg. It utilizes a 13-beam receiver operating in the 20-cm band on the Parkes 64-m radio telescope and is much more sensitive than any previous large-scale survey. Most of the 608 pulsars discovered so far are relatively distant and many are young,
Research Interests:
PSR J0205+6449 is a young, rotation-powered pulsar located at the centre of the SNR 3C 58, widely believed to be the remnant of the historical supernova SN 1181. The neutron star is cooler than expected from standard cooling models [1]... more
PSR J0205+6449 is a young, rotation-powered pulsar located at the centre of the SNR 3C 58, widely believed to be the remnant of the historical supernova SN 1181. The neutron star is cooler than expected from standard cooling models [1] and the pulsar, though it has a very high spin-down luminosity of E = 2.6×1037 ergs/s, has very low radio
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PSR J0205+6449 is a young, rotation-powered pulsar located at the centre of the SNR 3C 58, widely believed to be the remnant of the historical supernova SN 1181. The neutron star is cooler than expected from standard cooling models [1]... more
PSR J0205+6449 is a young, rotation-powered pulsar located at the centre of the SNR 3C 58, widely believed to be the remnant of the historical supernova SN 1181. The neutron star is cooler than expected from standard cooling models [1] and the pulsar, though it has a very high spin-down luminosity of E = 2.6×1037 ergs/s, has very low radio
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We report on the results achieved in the first two years of observations of the double-pulsar system J0737-3039A/B. Its orbital parameters and close distance allow to perform unprecedented tests of the theories of Gravity and of the... more
We report on the results achieved in the first two years of observations of the double-pulsar system J0737-3039A/B. Its orbital parameters and close distance allow to perform unprecedented tests of the theories of Gravity and of the physics of highly condensed matter. The discovery of this system enhances of about an order of magnitude the estimate of the merger rate of double neutron stars systems, opening new possibilities for the current generation of gravitational wave detectors. The high orbital inclination offers the opportunity of using the radio beams from one of the two sources as a probe for studying the magnetosphere of the other.
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We report on the results achieved in the first two years of observations of the double-pulsar system J0737-3039A/B. Its orbital parameters and close distance allow to perform unprecedented tests of the theories of Gravity and of the... more
We report on the results achieved in the first two years of observations of the double-pulsar system J0737-3039A/B. Its orbital parameters and close distance allow to perform unprecedented tests of the theories of Gravity and of the physics of highly condensed matter. The discovery of this system enhances of about an order of magnitude the estimate of the merger rate of double neutron stars systems, opening new possibilities for the current generation of gravitational wave detectors. The high orbital inclination offers the opportunity of using the radio beams from one of the two sources as a probe for studying the magnetosphere of the other.
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We review the properties of the 22 millisecond radio pulsars currently known in the globular cluster 47 Tucanae, and their implications for the mass and gas content of the cluster. Further details can be found in the publications from... more
We review the properties of the 22 millisecond radio pulsars currently known in the globular cluster 47 Tucanae, and their implications for the mass and gas content of the cluster. Further details can be found in the publications from this project to date (Camilo et al. 2000; Freire 2000; Freire et al. 2001a,b; Freire et al. 2003). Throughout the review,
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We review the properties of the 22 millisecond radio pulsars currently known in the globular cluster 47 Tucanae, and their implications for the mass and gas content of the cluster. Further details can be found in the publications from... more
We review the properties of the 22 millisecond radio pulsars currently known in the globular cluster 47 Tucanae, and their implications for the mass and gas content of the cluster. Further details can be found in the publications from this project to date (Camilo et al. 2000; Freire 2000; Freire et al. 2001a,b; Freire et al. 2003). Throughout the review,
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A wide array of deep-inelastic-scattering and hadron collider experiments have tested the predictions of the electroweak theory and measured its parameters, while also searching for new particles and processes. We summarise recent... more
A wide array of deep-inelastic-scattering and hadron collider experiments have tested the predictions of the electroweak theory and measured its parameters, while also searching for new particles and processes. We summarise recent measurements and searches that probe the Standard Model to unprecedented precision.
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In December 1997 the treatment of patients suffering from head and neck tumours with beams of high-energy 12C ions started at the Gesellschaft fur Schwerionenforschung (GSI) in Darmstadt. By the simultaneous application of positron... more
In December 1997 the treatment of patients suffering from head and neck tumours with beams of high-energy 12C ions started at the Gesellschaft fur Schwerionenforschung (GSI) in Darmstadt. By the simultaneous application of positron emission tomography (PET) the treatments are verified in-situ during the irradiation. The PET-based quality assurance procedure is a chain of consecutive steps. The starting point is
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We report the status of a search for pulsars in the Galactic Centre, using a completely revised and improved high-sensitivity double-horn system at 4.85-GHz. We also present calculations about the success rate of periodicity searches for... more
We report the status of a search for pulsars in the Galactic Centre, using a completely revised and improved high-sensitivity double-horn system at 4.85-GHz. We also present calculations about the success rate of periodicity searches for such a survey, showing that in contrast to conclusions in recent literature pulsars can be indeed detected at the chosen search frequency.
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The antigen levels of components of the urokinase-type plasminogen activator (uPA) system of plasminogen activation are correlated with prognosis in several types of cancers, including breast cancer. In the present study involving 2780... more
The antigen levels of components of the urokinase-type plasminogen activator (uPA) system of plasminogen activation are correlated with prognosis in several types of cancers, including breast cancer. In the present study involving 2780 patients with primary invasive breast cancer, we have evaluated the prognostic importance of the four major components of the uPA system [uPA, the receptor uPAR (CD87), and
Research Interests: Cancer, Breast Cancer, Multivariate Analysis, Humans, Female, and 15 moreAged, Middle Aged, Adult, Prognosis, Targeted Therapy, Lymph Node, ADJUVANT THERAPY, Cell Surface Markers, Overall Survival, Rank Correlation, Isotonic Regression, Confidence Interval, Plasminogen Activator Inhibitor, Plasminogen Activator, and Breast neoplasm
A combination of Parkes and GMRT can provide polarization, single pulse, and other information for about 200 pulsars from frequencies between 0.15 and 8~GHz. We aim to obtain: (i)Polarization profiles at high time resolution in at least 6... more
A combination of Parkes and GMRT can provide polarization, single pulse, and other information for about 200 pulsars from frequencies between 0.15 and 8~GHz. We aim to obtain: (i)Polarization profiles at high time resolution in at least 6 observing bands, with absolute position angle calibration. (ii)The spectral behaviour of a large sample of pulsars over a wide frequency range. (iii)An
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The Parkes multibeam pulsar survey began in 1997 and is now about 50% complete. It has discovered more than 400 new pulsars so far, including a number of young, high magnetic field, and relativistic binary pulsars. Early results,... more
The Parkes multibeam pulsar survey began in 1997 and is now about 50% complete. It has discovered more than 400 new pulsars so far, including a number of young, high magnetic field, and relativistic binary pulsars. Early results, descriptions of the survey and follow up timing programs can be found in papers by Lyne et al. (1999 MNRAS in press,
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Research Interests:
Ice supersaturation often observed in the upper troposphere is a prerequisite of cirrus formation. The competition between homogeneous ice nucleation e.g. occurring in supercooled solution droplets like sulphuric acid particles and... more
Ice supersaturation often observed in the upper troposphere is a prerequisite of cirrus formation. The competition between homogeneous ice nucleation e.g. occurring in supercooled solution droplets like sulphuric acid particles and heterogeneous ice nucleation on solid aerosol particles like soot and mineral dust mainly depends on the cooling rate as well as the number concentration and surface properties of the heterogeneous freezing nuclei. In recent experiment series the AIDA aerosol chamber was used as a moderate expansion cloud chamber to investigate homogeneous and heterogeneous freezing mechanisms at simulated cirrus conditions. The impact of ageing processes like surface coating on ice nucleation is investigated in repeated cycles of ice activation and evaporation. On the poster we briefly summarise the experimental methods and show results of freezing experiments on homogeneous ice nucleation of sulphuric acid and on heterogeneous ice nucleation on soot and mineral dust, bo...
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Women are often advised that lactation accelerates loss of the excess weight gained during pregnancy, but the evidence underlying this advice is sparse and conflicting. To help fill this gap, we assessed differences in the rate of... more
Women are often advised that lactation accelerates loss of the excess weight gained during pregnancy, but the evidence underlying this advice is sparse and conflicting. To help fill this gap, we assessed differences in the rate of postpartum weight loss in the first 9 months postpartum according to method of infant feeding. Two hundred thirty-six women attending two public health clinics in Montreal were weighed in one to four routine infant immunization visits up to the 9th postpartum month. After each weighing, we administered a telephone questionnaire assessing the method of infant feeding (predominantly breast-feeding, mixed-feeding, or predominantly bottle-feeding) and potential confounders. Data were analyzed using unbalanced multivariate repeated measures linear regression. Infant feeding was not associated with statistically significant differences in the rate of weight loss. Gestational weight gain, postpartum smoking, and maternal birthplace were important predictors of po...
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The Cree of James Bay have the highest ever reported mean birth weight and a high prevalence of infant macrosomia. This study was designed to examine independent risk factors for infant macrosomia among the Cree, to compare these to risk... more
The Cree of James Bay have the highest ever reported mean birth weight and a high prevalence of infant macrosomia. This study was designed to examine independent risk factors for infant macrosomia among the Cree, to compare these to risk factors among non-Native Canadians and to determine if ethnic differences persist after adjusting for differences in the distribution of other risk factors. Macrosomia was defined as birth weight >90(th) percentile for gestational age of a reference population. Independent determinants of macrosomia were examined in 385 Cree and 5644 non-Native women. The potential effect of ethnicity (Cree vs. non-Native) was determined after statistically adjusting for age, parity, pregravid weight, height, net rate of weight gain, gestational diabetes mellitus (GDM) and smoking status. The prevalence of macrosomia among the Cree was 34.3% vs. 11.1% among non-Natives. Although GDM significantly increased the risk for macrosomia among the Cree (odds ratio: 4.46,...
Research Interests: Genetics, Nutrition and Dietetics, Nutrition, Forecasting, Ethnicity, and 25 moreAnimal Production, Birth Weight, Canada, Pregnancy, Humans, Female, Fetal Growth, Variation, Male, Regression Analysis, The, Risk factors, Ethnic Groups, Prevalence, Adult, Ethnic Group, Odds ratio, Food Sciences, Genetic variation, Risk Factors, Fetus, Gestational Age, Weight Gain, Ethnic Difference, and Gestational diabetes mellitus (GDM)
The antigen levels of components of the urokinase-type plasminogen activator (uPA) system of plasminogen activation are correlated with prognosis in several types of cancers, including breast cancer. In the present study involving 2780... more
The antigen levels of components of the urokinase-type plasminogen activator (uPA) system of plasminogen activation are correlated with prognosis in several types of cancers, including breast cancer. In the present study involving 2780 patients with primary invasive breast cancer, we have evaluated the prognostic importance of the four major components of the uPA system [uPA, the receptor uPAR (CD87), and the inhibitors PAI-1 and PAI-2]. The antigen levels were determined by ELISA in cytosols prepared from primary breast tumors. The levels of the four factors significantly correlated with each other; the Spearman rank correlation coefficients (r(s)) ranged from 0.32 (between PAI-2 and PAI-1 or uPAR) to 0.59 (between uPA and PAI-1). The median duration of follow-up of patients still alive was 88 months. In the multivariate analyses for relapse-free survival (RFS) and overall survival (OS), we defined a basic model including age, menopausal status, tumor size and grade, lymph node sta...
Research Interests: Cancer, Breast Cancer, Multivariate Analysis, Humans, Female, and 15 moreAged, Middle Aged, Adult, Prognosis, Targeted Therapy, Lymph Node, ADJUVANT THERAPY, Cell Surface Markers, Overall Survival, Rank Correlation, Isotonic Regression, Confidence Interval, Plasminogen Activator Inhibitor, Plasminogen Activator, and Breast neoplasm
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This report describes a large international chocolate-associated Salmonella outbreak originating from Germany. We conducted epidemiologic investigations including a case-control study, and food safety investigations. Salmonella (S.)... more
This report describes a large international chocolate-associated Salmonella outbreak originating from Germany. We conducted epidemiologic investigations including a case-control study, and food safety investigations. Salmonella (S.) Oranienburg isolates were subtyped by the use of pulsed-field gel electrophoresis (PFGE). From 1 October 2001 through 24 March 2002, an estimated excess of 439 S. Oranienburg notifications was registered in Germany. Simultaneously, an increase in S. Oranienburg infections was noted in other European countries in the Enter-net surveillance network. In a multistate matched case-control study in Germany, daily consumption of chocolate (matched odds ratio [MOR]: 4.8; 95% confidence interval [CI]: 1.3-26.5), having shopped at a large chain of discount grocery stores (MOR: 4.2; CI: 1.2-23.0), and consumption of chocolate purchased there (MOR: 5.0; CI: 1.1-47.0) were associated with illness. Subsequently, two brands from the same company, one exclusively produc...
Research Interests: Microbiology, Food Safety, Medical Microbiology, Public Health, Adolescent, and 25 moreFood Microbiology, Germany, Canada, Disease Outbreaks, Humans, Child, Europe, Female, Candy, Male, Cacao, Infant, Risk factors, Clinical Sciences, Salmonella, Aged, Middle Aged, Adult, Pulsed field gel electrophoresis (PFGE), Risk Factors, Gel electrophoresis, Case Control Study, Confidence Interval, Case Control Studies, and Child preschool
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... Genetic Engineering of Fruits and Vegetables with the Ethylene Control Gene Encoding S.adenosylrnethionine hydrolase (SAMase) VR Bommineni*, H Mathews, SK Clendennen, W Wagoner, V Dewey, J Kellogg, S Peters, W Matsumura, M Pieper 1, M... more
... Genetic Engineering of Fruits and Vegetables with the Ethylene Control Gene Encoding S.adenosylrnethionine hydrolase (SAMase) VR Bommineni*, H Mathews, SK Clendennen, W Wagoner, V Dewey, J Kellogg, S Peters, W Matsumura, M Pieper 1, M ... Gale Gala) and pear (cv. ...
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To deduce structural trends in neurosurgery in Germany by comparison of data derived from polls conducted by the Deutsche Gesellschaft für Neurochirurgie (DGNC) in 1997, 2003 and 2008. The questionnaires of the different polls probed a... more
To deduce structural trends in neurosurgery in Germany by comparison of data derived from polls conducted by the Deutsche Gesellschaft für Neurochirurgie (DGNC) in 1997, 2003 and 2008. The questionnaires of the different polls probed a comparable set of issues. The data from the responding sample were extrapolated to the nationwide average or sum and compared between the different time periods. The number of identified neurosurgical departments increased from 146 to 201 during the years 1997-2008 largely as a result of the new foundation of numerous private groups. Nationwide total neurosurgical bed capacity and intensive care unit bed capacity increased modestly over the time period. The extrapolated total number of neurosurgical operations increased from 196,341 to 319,295. Although cranial and spinal neurosurgery remain the dominant subspecialties, the number of functional neurosurgical procedures and operations for pain increased more than proportionally. Outpatient procedures were established during the time period and corresponded in 2008 to a substantial proportion of the surgical volume. The total number of residents and board-certified neurosurgeons increased during the period 1997-2008 from 1513 to 1961. The proportion of residents decreased during 1997-2003 and then increased again. The number of neurosurgical operations increased in Germany proportionally to the economic growth of other service branches over the time period. Private organizations developed more than neurosurgical departments at university and other general hospitals. Work density measured as operations per physician increased during the period 1997-2008.
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We present precise phase-connected pulse timing solutions for 16 gamma-ray-selected pulsars recently discovered using the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope plus one very faint radio pulsar (PSR J1124-5916)... more
We present precise phase-connected pulse timing solutions for 16 gamma-ray-selected pulsars recently discovered using the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope plus one very faint radio pulsar (PSR J1124-5916) that is more effectively timed with the LAT. We describe the analysis techniques including a maximum likelihood method for determining pulse times of arrival from unbinned photon
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It has been demonstrated in several measurement campaigns that the aerosol and cloud chamber AIDA is an excellent facility to study homogeneous and heterogeneous ice nucleation processes under realistic atmospheric conditions. Due to... more
It has been demonstrated in several measurement campaigns that the aerosol and cloud chamber AIDA is an excellent facility to study homogeneous and heterogeneous ice nucleation processes under realistic atmospheric conditions. Due to permanent improvements of the diagnostic instrumentation and the control of the thermodynamic conditions during the expansion cooling experiments, detailed studies of the microphysical and optical properties of