Les facons de percevoir Jesus Christ et les reactions a son egard chez les hindous au XIXe siecle... more Les facons de percevoir Jesus Christ et les reactions a son egard chez les hindous au XIXe siecle sont multiples et variees. Certaines se formerent par la projection sur la scene de l'image du Christ. Ce fut souvent une image associee a la conquete etrangere et a la domination coloniale. Elle fut ensuite fausee par l'agressivite de l'evangelisme. L'A. illustre chaque position par l'etude d'une personne ou d'un mouvement qui en est representatif.
On a complex manifold, a co-Higgs bundle is a holomorphic vector bundle with an endomorphism twis... more On a complex manifold, a co-Higgs bundle is a holomorphic vector bundle with an endomorphism twisted by the tangent bundle. The notion of generalized holomorphic bundle in Hitchin's generalized geometry coincides with that of co-Higgs bundle when the generalized complex manifold is ordinary complex. Schwarzenberger's rank-2 vector bundle on the projective plane, constructed from a line bundle on the double cover CP 1 × CP 1 → CP 2 , is naturally a co-Higgs bundle, with the twisted endomorphism, or "Higgs field", also descending from the double cover. Allowing the branch conic to vary, we find that Schwarzenberger bundles give rise to an 8-dimensional moduli space of co-Higgs bundles. After studying the deformation theory for co-Higgs bundles on complex manifolds, we conclude that a co-Higgs bundle arising from a Schwarzenberger bundle with nonzero Higgs field is rigid, in the sense that a nearby deformation is again Schwarzenberger.
We study the hyperkähler analogues of moduli spaces of semistable n-gons in complex projective sp... more We study the hyperkähler analogues of moduli spaces of semistable n-gons in complex projective space. We prove that the hyperkähler Kirwan map is surjective and produce a formula that recursively calculates the Betti numbers of these spaces for all ranks. Building on a natural analogy between hyperpolygons and parabolic Higgs bundles, we identify hyperpolygon spaces with certain degenerate Hitchin systems, and use this to establish their complete integrability, for ranks up to and including 3.
We performed a consecutive series of unilateral laparoscopic adrenalectomies (LA) with the expect... more We performed a consecutive series of unilateral laparoscopic adrenalectomies (LA) with the expectation of short (less than 24 h) hospital stay. Results were compared with those from laparoscopic cholecystectomy (LC) and unilateral open adrenalectomy (OA). A combination of chart review and patient questionnaires was used to compare LA (n = 19) to LC (n = 20) regarding length of stay (LOS), narcotic requirements, and time to full recovery. Chart reviews also were used to compare LA to OA (n = 48) regarding operating room time (OR time), LOS, and surgical morbidity. All of the LC patients as compared with 47% of the LA patients were discharged within 24 h. The reason for additional hospitalization in the LA group was pain control. After discharge, the narcotic requirement lasted 6.6 days in the LA group as compared with 3.4 days in the LC group (p < 0.01), but the times until full recovery were not significantly different (12.2 vs 11.3 days respectively). Operating room times did not differ significantly between the LA and OA groups (3.3 and 3.8 h, respectively), but there were fewer postoperative complications and much shorter LOS in the LA group (1.5 vs 6.3 days; p < 0.001), a difference that remained significant even when cases from the same time period were compared. Increased pain in LA as compared with LC patients may result in a slightly longer LOS and higher narcotic requirement during the early postoperative period, but time to full recovery between the two groups is the same. As compared with its open counterpart, LA offers a significant reduction in LOS and morbidity with no increase in OR time.
Any route of entry into the abdomen contributes to alterations of the intraperitoneal organs with... more Any route of entry into the abdomen contributes to alterations of the intraperitoneal organs with different clinical consequences. Characteristic alterations of the peritoneum after CO2 pneumoperitoneum used in laparoscopic surgery is examined. A CO2 pneumoperitoneum with an intraperitoneal pressure of 6 mmHg was applied for 30 min in 32 nude mice. In the course of 4 days, the animals were killed and the peritoneal surface of the abdominal wall was studied by means of scanning electron microscopy. Already 2 h after release of the pneumoperitoneum, mesothelial cells were bulging up. The intercellular clefts thereby increased in size, and the underlying basal lamina became visible. This reaction peaked after 12 h. Subsequently, peritoneal macrophages and lymphocytes filled all gaps, thereby recovering the basal lamina. The morphologic integrity of the peritoneum is temporarily disturbed by a CO2 pneumoperitoneum.
Purpose: Diffusion‐weighted imaging is an important clinical tool in neurological and body MRI. H... more Purpose: Diffusion‐weighted imaging is an important clinical tool in neurological and body MRI. However, low contrast to noise ratios (CNR) of parameter maps (e.g., fractional anisotropy (FA)), force numerous signal averages to achieve useful CNR.DiffusionTensorImaging (DTI) requires at least six diffusion directions, which can lead to extremely lengthy protocols. Here, we present a method for using Compressed Sensing (CS) processing to decrease the number of signal acquisitions needed to achieve a given CNR.Method and Materials: The CNR was calculated for the FA (Fractional Anisotropy) map of celery DTI data acquired on a 9.4T vertical Bruker BioSpec. The 2‐D Fourier coefficients of FA map were first decomposed into multiple sets of incoherent subsamples by the application of complementary random masks with equal sampling ratios, such that all of the coefficients were used at least once. Data subsampling was performed in both directions. CS reconstruction was applied to each subset of Fourier coefficients to recover multiple fully sampled FA maps. Finally, the CS reconstructed FA maps were averaged (in Fourier space) to produce a less noisy FA map. Results: The CS processed FA maps mostly contained significantly less noise than unprocessed FA maps by both calculated CNR and visual inspection.Conclusion: We found that the CS processed FA maps mostly contained significantly less noise than unprocessed FA maps. However, our celery phantom datasets started out with high CNR, which does not reproduce in vivo noise conditions. Therefore, application of this method to a phantom dataset might not fully demonstrate the its capabilities, meaning that the method should be tested on more realistic MR data before any practical significance can be attached to these results.
Background. This study examines the efficacy of a novel, absorbable photopolymerized hydrogel sea... more Background. This study examines the efficacy of a novel, absorbable photopolymerized hydrogel sealant, Focalseal (Focal Inc, Lexington, Mass), in protecting high-risk suture deficient intestinal anastomoses (HRA) compared with conventional sutured anastomoses (CSA). Methods. Twenty-four New Zealand white rabbits were either randomized to small bowel HRA constructed with 4 interrupted 5/0 polyglyconate sutures and treated with Focalseal or small bowel CSA constructed with 8 to 10 interrupted 5/0 polyglyconate sutures. Four rabbits from each group were killed at postoperative days 3, 7, and 21. Anastomoses were assessed for evidence of dehiscence, adhesion formation, stenosis, and bursting pressure; they were also examined histologically for collagen content estimation and blood vessel formation. Results. Mean operative time was 35 minutes (SD 5) for CSA and 35 minutes (SD 5) for HRA. There was 1 postoperative death in the HRA group. A postmortem examination revealed no evidence of an...
International Studies in the Philosophy of Science, 2009
... 1988. Ibn Taymiyah's empiricism. In A way prepared: Essays on Islamic culture ... more ... 1988. Ibn Taymiyah's empiricism. In A way prepared: Essays on Islamic culture in honor of Richard Bayly Winder , Edited by: Kazemi, Farhad and McChesney, RD 109115. ... 1997. Muwāfaqat a i al‐manqūl li‐ arī al‐maʿqūl , Edited by: Abd al‐Rahman, ʿAbd al‐Latif. Vol. ...
Co-Higgs bundles are Higgs bundles in the sense of Simpson, but with Higgs fields that take value... more Co-Higgs bundles are Higgs bundles in the sense of Simpson, but with Higgs fields that take values in the tangent bundle instead of the cotangent bundle. Given a vector bundle on P 1 , we find necessary and sufficient conditions on its Grothendieck splitting for it to admit a stable Higgs field. We characterize the rank-2, odd-degree moduli space as a universal elliptic curve with a globally-defined equation. For ranks r = 2, 3, 4, we explicitly verify the conjectural Betti numbers emerging from the recent work of Chuang, Diaconescu, Pan, and Mozgovoy on the ADHM formula. We state the result for r = 5.
Sunil S. Rayan, MD, Allen D. Hamdan, MD, David R. Campbell, MD, Cameron M. Akbari, MD, Shannon C.... more Sunil S. Rayan, MD, Allen D. Hamdan, MD, David R. Campbell, MD, Cameron M. Akbari, MD, Shannon C. Hook, BS, John Skillman, MD, Frank W. LoGerfo, MD, and Frank B. Pomposelli, Jr., MD, Boston, MA ... A number of studies have compared results after ...
This paper examines the travel behavior of students at Texas A&M University. A total of 42,000 st... more This paper examines the travel behavior of students at Texas A&M University. A total of 42,000 students enroll in a typical semester, approximately 78 percent of those students live off campus and the rest live on campus. The available travel mode options for off-campus Texas A&M ...
The frequent encounter of incorrectly functioning Arabic Websites, especially those of large busi... more The frequent encounter of incorrectly functioning Arabic Websites, especially those of large businesses and governments calls for a clear and applied framework to help practitioners develop properly functioning Websites. The issue of Website internationalization has been addressed in a plethora of standards, guideline, good practices, and tutorials. However, these standards with their formal language may not be directly comprehensible to the practitioner. In addition, guidelines and tutorials are usually designed to address one issue requiring the practitioner to integrate knowledge from different sources. Moreover, these standards, guidelines and tutorials are limited to the Web technologies themselves excluding other parts of Web application architecture. In this paper, we propose a comprehensive step-by-step framework addressed to the practitioner. The framework integrates knowledge from different standards and technologies and calls attention to issues that could be overlooked in designing and implementing data-intensive Arabic Web applications.
Les facons de percevoir Jesus Christ et les reactions a son egard chez les hindous au XIXe siecle... more Les facons de percevoir Jesus Christ et les reactions a son egard chez les hindous au XIXe siecle sont multiples et variees. Certaines se formerent par la projection sur la scene de l'image du Christ. Ce fut souvent une image associee a la conquete etrangere et a la domination coloniale. Elle fut ensuite fausee par l'agressivite de l'evangelisme. L'A. illustre chaque position par l'etude d'une personne ou d'un mouvement qui en est representatif.
On a complex manifold, a co-Higgs bundle is a holomorphic vector bundle with an endomorphism twis... more On a complex manifold, a co-Higgs bundle is a holomorphic vector bundle with an endomorphism twisted by the tangent bundle. The notion of generalized holomorphic bundle in Hitchin's generalized geometry coincides with that of co-Higgs bundle when the generalized complex manifold is ordinary complex. Schwarzenberger's rank-2 vector bundle on the projective plane, constructed from a line bundle on the double cover CP 1 × CP 1 → CP 2 , is naturally a co-Higgs bundle, with the twisted endomorphism, or "Higgs field", also descending from the double cover. Allowing the branch conic to vary, we find that Schwarzenberger bundles give rise to an 8-dimensional moduli space of co-Higgs bundles. After studying the deformation theory for co-Higgs bundles on complex manifolds, we conclude that a co-Higgs bundle arising from a Schwarzenberger bundle with nonzero Higgs field is rigid, in the sense that a nearby deformation is again Schwarzenberger.
We study the hyperkähler analogues of moduli spaces of semistable n-gons in complex projective sp... more We study the hyperkähler analogues of moduli spaces of semistable n-gons in complex projective space. We prove that the hyperkähler Kirwan map is surjective and produce a formula that recursively calculates the Betti numbers of these spaces for all ranks. Building on a natural analogy between hyperpolygons and parabolic Higgs bundles, we identify hyperpolygon spaces with certain degenerate Hitchin systems, and use this to establish their complete integrability, for ranks up to and including 3.
We performed a consecutive series of unilateral laparoscopic adrenalectomies (LA) with the expect... more We performed a consecutive series of unilateral laparoscopic adrenalectomies (LA) with the expectation of short (less than 24 h) hospital stay. Results were compared with those from laparoscopic cholecystectomy (LC) and unilateral open adrenalectomy (OA). A combination of chart review and patient questionnaires was used to compare LA (n = 19) to LC (n = 20) regarding length of stay (LOS), narcotic requirements, and time to full recovery. Chart reviews also were used to compare LA to OA (n = 48) regarding operating room time (OR time), LOS, and surgical morbidity. All of the LC patients as compared with 47% of the LA patients were discharged within 24 h. The reason for additional hospitalization in the LA group was pain control. After discharge, the narcotic requirement lasted 6.6 days in the LA group as compared with 3.4 days in the LC group (p < 0.01), but the times until full recovery were not significantly different (12.2 vs 11.3 days respectively). Operating room times did not differ significantly between the LA and OA groups (3.3 and 3.8 h, respectively), but there were fewer postoperative complications and much shorter LOS in the LA group (1.5 vs 6.3 days; p < 0.001), a difference that remained significant even when cases from the same time period were compared. Increased pain in LA as compared with LC patients may result in a slightly longer LOS and higher narcotic requirement during the early postoperative period, but time to full recovery between the two groups is the same. As compared with its open counterpart, LA offers a significant reduction in LOS and morbidity with no increase in OR time.
Any route of entry into the abdomen contributes to alterations of the intraperitoneal organs with... more Any route of entry into the abdomen contributes to alterations of the intraperitoneal organs with different clinical consequences. Characteristic alterations of the peritoneum after CO2 pneumoperitoneum used in laparoscopic surgery is examined. A CO2 pneumoperitoneum with an intraperitoneal pressure of 6 mmHg was applied for 30 min in 32 nude mice. In the course of 4 days, the animals were killed and the peritoneal surface of the abdominal wall was studied by means of scanning electron microscopy. Already 2 h after release of the pneumoperitoneum, mesothelial cells were bulging up. The intercellular clefts thereby increased in size, and the underlying basal lamina became visible. This reaction peaked after 12 h. Subsequently, peritoneal macrophages and lymphocytes filled all gaps, thereby recovering the basal lamina. The morphologic integrity of the peritoneum is temporarily disturbed by a CO2 pneumoperitoneum.
Purpose: Diffusion‐weighted imaging is an important clinical tool in neurological and body MRI. H... more Purpose: Diffusion‐weighted imaging is an important clinical tool in neurological and body MRI. However, low contrast to noise ratios (CNR) of parameter maps (e.g., fractional anisotropy (FA)), force numerous signal averages to achieve useful CNR.DiffusionTensorImaging (DTI) requires at least six diffusion directions, which can lead to extremely lengthy protocols. Here, we present a method for using Compressed Sensing (CS) processing to decrease the number of signal acquisitions needed to achieve a given CNR.Method and Materials: The CNR was calculated for the FA (Fractional Anisotropy) map of celery DTI data acquired on a 9.4T vertical Bruker BioSpec. The 2‐D Fourier coefficients of FA map were first decomposed into multiple sets of incoherent subsamples by the application of complementary random masks with equal sampling ratios, such that all of the coefficients were used at least once. Data subsampling was performed in both directions. CS reconstruction was applied to each subset of Fourier coefficients to recover multiple fully sampled FA maps. Finally, the CS reconstructed FA maps were averaged (in Fourier space) to produce a less noisy FA map. Results: The CS processed FA maps mostly contained significantly less noise than unprocessed FA maps by both calculated CNR and visual inspection.Conclusion: We found that the CS processed FA maps mostly contained significantly less noise than unprocessed FA maps. However, our celery phantom datasets started out with high CNR, which does not reproduce in vivo noise conditions. Therefore, application of this method to a phantom dataset might not fully demonstrate the its capabilities, meaning that the method should be tested on more realistic MR data before any practical significance can be attached to these results.
Background. This study examines the efficacy of a novel, absorbable photopolymerized hydrogel sea... more Background. This study examines the efficacy of a novel, absorbable photopolymerized hydrogel sealant, Focalseal (Focal Inc, Lexington, Mass), in protecting high-risk suture deficient intestinal anastomoses (HRA) compared with conventional sutured anastomoses (CSA). Methods. Twenty-four New Zealand white rabbits were either randomized to small bowel HRA constructed with 4 interrupted 5/0 polyglyconate sutures and treated with Focalseal or small bowel CSA constructed with 8 to 10 interrupted 5/0 polyglyconate sutures. Four rabbits from each group were killed at postoperative days 3, 7, and 21. Anastomoses were assessed for evidence of dehiscence, adhesion formation, stenosis, and bursting pressure; they were also examined histologically for collagen content estimation and blood vessel formation. Results. Mean operative time was 35 minutes (SD 5) for CSA and 35 minutes (SD 5) for HRA. There was 1 postoperative death in the HRA group. A postmortem examination revealed no evidence of an...
International Studies in the Philosophy of Science, 2009
... 1988. Ibn Taymiyah's empiricism. In A way prepared: Essays on Islamic culture ... more ... 1988. Ibn Taymiyah's empiricism. In A way prepared: Essays on Islamic culture in honor of Richard Bayly Winder , Edited by: Kazemi, Farhad and McChesney, RD 109115. ... 1997. Muwāfaqat a i al‐manqūl li‐ arī al‐maʿqūl , Edited by: Abd al‐Rahman, ʿAbd al‐Latif. Vol. ...
Co-Higgs bundles are Higgs bundles in the sense of Simpson, but with Higgs fields that take value... more Co-Higgs bundles are Higgs bundles in the sense of Simpson, but with Higgs fields that take values in the tangent bundle instead of the cotangent bundle. Given a vector bundle on P 1 , we find necessary and sufficient conditions on its Grothendieck splitting for it to admit a stable Higgs field. We characterize the rank-2, odd-degree moduli space as a universal elliptic curve with a globally-defined equation. For ranks r = 2, 3, 4, we explicitly verify the conjectural Betti numbers emerging from the recent work of Chuang, Diaconescu, Pan, and Mozgovoy on the ADHM formula. We state the result for r = 5.
Sunil S. Rayan, MD, Allen D. Hamdan, MD, David R. Campbell, MD, Cameron M. Akbari, MD, Shannon C.... more Sunil S. Rayan, MD, Allen D. Hamdan, MD, David R. Campbell, MD, Cameron M. Akbari, MD, Shannon C. Hook, BS, John Skillman, MD, Frank W. LoGerfo, MD, and Frank B. Pomposelli, Jr., MD, Boston, MA ... A number of studies have compared results after ...
This paper examines the travel behavior of students at Texas A&M University. A total of 42,000 st... more This paper examines the travel behavior of students at Texas A&M University. A total of 42,000 students enroll in a typical semester, approximately 78 percent of those students live off campus and the rest live on campus. The available travel mode options for off-campus Texas A&M ...
The frequent encounter of incorrectly functioning Arabic Websites, especially those of large busi... more The frequent encounter of incorrectly functioning Arabic Websites, especially those of large businesses and governments calls for a clear and applied framework to help practitioners develop properly functioning Websites. The issue of Website internationalization has been addressed in a plethora of standards, guideline, good practices, and tutorials. However, these standards with their formal language may not be directly comprehensible to the practitioner. In addition, guidelines and tutorials are usually designed to address one issue requiring the practitioner to integrate knowledge from different sources. Moreover, these standards, guidelines and tutorials are limited to the Web technologies themselves excluding other parts of Web application architecture. In this paper, we propose a comprehensive step-by-step framework addressed to the practitioner. The framework integrates knowledge from different standards and technologies and calls attention to issues that could be overlooked in designing and implementing data-intensive Arabic Web applications.
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