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Proper Holomorphic Maps from Domains in C2 with Transverse Circle Action

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Chinese Annals of Mathematics,Series B 2007年第5期28卷 533-542页

作者： adam COFFMAN Yifei PAN Department of Mathematical Sciences Indiana University - Purdue University Fort Wayne Fort Wayne IN 46805-1499 USA. Department of Mathematical Sciences Indiana University - Purdue University Fort Wayne Fort Wayne IN 46805-1499 USA College of Mathematics and Information Sciences Jiangxi Normal University Nanchang 330022 China.

The authors consider proper holomorphic mappings between smoothly bounded pseudoconvex regions in complex 2-space,where the domain is of finite type and admits a transverse circle *** main result is that the closure of each irreducible component of the branch locus of such a map intersects the boundary of the domain in the union of finitely many orbits of the group action.

关键词： Proper holomorphic map Pseudoconvex domain

POTENTIAL OPERATORS AND LAPLACE TYPE MULTIPLIERS ASSOCIATED WITH THE TWISTED LAPLACIAN

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Acta Mathematica Scientia 2017年第1期37卷 280-292页

作者： adam NOWAK Krzysztof STEMPAK Instytut Matematyczny Polska Akademia NaukSniadeckich 800-656 WarszawaPoland Wydziat Matematyki Politechnika WroctawskaWyb.Wyspianskiego 2750-370 WroclawPoland

We study potential operators and,more generally,Laplace-Stieltjes and Laplace type multipliers associated with the twisted *** characterize those 1 ≤ p,q ≤ ∞,for which the potential operators are Lp—Lq *** result is a sharp analogue of the classical Hardy-Littlewood-Sobolev fractional integration theorem in the context of special Hermite *** also investigate Lp mapping properties of the Laplace-Stieltjes and Laplace type multipliers.

关键词： twisted Laplacian special Hermite expansion negative power potential op-erator fractional integral potential kernel spectral multiplier singular oscil-latory integral

Endoscopic ultrasound-guided drainage of peripancreatic fluid collections: What impacts treatment duration?

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Hepatobiliary & Pancreatic Diseases International 2023年第3期22卷 310-316页

作者： adam Przybyłkowski Piotr Nehring Department of Gastroenterology and Internal Medicine Medical University of WarsawWarsawPoland

Background:Peripancreatic fluid collections(PFCs)are complications resulting from acute or chronic pancreatitis and require treatment in certain clinical *** present study aimed to identify the factors influencing the duration of endoscopic ultrasound(EUS)-guided drainage of symptomatic pancreatic pseudocysts(PPCs),walled-off necrosis(WON),and acute necrotic collections(ANCs).Methods:This was a retrospective cohort study of 68 patients with PFCs who underwent EUS-guided *** timing and duration of EUS-guided drainage of various PFCs(ANC,WON,and PPCs)were compared,and the factors influencing the duration of endoscopic treatment were ***:The mean time to first EUS-guided PFC drainage since the acute pancreatitis episode was 372.0,505.0,and 18.7 days for WON,PPC,and ANC,respectively,and the mean duration of treatment was 90,60,and 63 days,respectively.A disconnected pancreatic duct,a history of percutaneous drainage,and an infected PFC were identified as factors influencing the treatment duration.A positive correlation was observed between the treatment duration and patients’*** with a disconnected pancreatic duct had to undergo more *** patients with PPC,clinically successful drainage was more frequently achieved after a single procedure without the need for repeated procedures than in those with WON(90%vs.59%,P=0.01).Conclusions:Patients with a history of percutaneous drainage,disconnected pancreatic duct,or PFC infection may require longer endoscopic treatment.

关键词： Cyst Drainage Endoscopy Pancreas Pancreatitis

Treatment of tunnel wash waters-experiments with organic sorbent materials. PartⅡ: Removal of toxic metals

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Journal of Environmental Sciences 2008年第8期20卷 1042-1045页

作者： PARUCH adam M ROSETH Roger Bioforsk-the Norwegian Institute for Agricultural and Environmental Research Soil and Environment Division

In the first part of the article, the column and the bag experiments concerning removal of polycyclic aromatic hydrocarbons (PAHs) and nonpolar oil (NPO) from tunnel wash waters using organic sorbent materials have been described. This part presents the results of removal of toxic metals. The metals of concern (Al, As, Cd, Cr, Cu, Fe, Pb, Mo, Ni, and Zn) were selected based on the priority toxicant pollutants defined in surface water quality criteria. Concentrations of these metals in the collected effluent...

关键词： electrostatic filters reduction level sorbents tunnel toxic metals treatment efficiency wash water

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放射性药物治疗中的剂量测定

中华核医学与分子影像杂志 2024年第6期44卷 380-384页

作者：杨楠(译) 刘嘉月(审校) 王风(审校) 朱华(审校) 杨志(审校) 北京大学肿瘤医院核医学科北京100142

放射性药物治疗已经在某些疾病中应用,并且该领域正在扩大。近年来,新的治疗性放射性药物已开发出来,更多的药物正在研究中。同时,内照射剂量测量作为一种个性化和潜在优化患者治疗的手段,越来越受到关注。内照射剂量测量是多方面的,该... 详细信息

放射性药物治疗已经在某些疾病中应用,并且该领域正在扩大。近年来,新的治疗性放射性药物已开发出来,更多的药物正在研究中。同时,内照射剂量测量作为一种个性化和潜在优化患者治疗的手段,越来越受到关注。内照射剂量测量是多方面的,该篇继续教育文章讨论了目前的技术状况,主题包括剂量测量的背景、内照射剂量学方法、在放射性药物治疗中纳入剂量测量计算的优缺点、实施患者特异性剂量测量的工作流程描述,并对该领域的未来进行展望。

关键词：放射性核素治疗阿尔法粒子俄歇电子剂量测量法放射生物学放射性药物

Finding stable multi-component materials by combining cluster expansion and crystal structure predictions

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npj Computational Materials 2023年第1期9卷 2137-2146页

作者： adam Carlsson Johanna Rosen Martin Dahlqvist Materials Design Department of PhysicsChemistryand Biology(IFM)Linköping UniversitySE-58183 LinköpingSweden

A desired prerequisite when performing a quantum mechanical calculation is to have an initial idea of the atomic positions within an approximate crystal *** atomic positions combined should result in a system located in,or close to,an energy ***,designing low-energy structures may be a challenging task when prior knowledge is scarce,specifically for large multi-component systems where the degrees of freedom are close to *** this paper,we propose a method for identification of low-energy crystal structures within multi-component systems by combining cluster expansion and crystal structure predictions with density-functional theory *** structure prediction searches are applied to the Mo_(2)AlB_(2) and Sc2AlB_(2) ternary systems to identify candidate structures,which are subsequently used to explore the quaternary(pseudo-binary)(Mo_(x)Sc_(1–x))2AlB_(2) system through the cluster expansion formalism utilizing the ground-state search ***,we show that utilizing low-energy structures found within the cluster expansion ground-state search as seed structures within crystal structure predictions of(Mo_(x)Sc_(1–x))2AlB_(2) can significantly reduce the computational *** this combined approach,we not only correctly identified the recently discovered Mo_(4/3)Sc_(2/3)AlB_(2) i-MAB phase,comprised of in-plane chemical ordering of Mo and Sc and with Al in a Kagomélattice,but also predict additional low-energy structures at various *** result demonstrates that combining crystal structure prediction with cluster expansion provides a path for identifying low-energy crystal structures in multi-component systems by employing the strengths from both frameworks.

关键词： structure cluster crystal

Prepulse inhibition (PPI) of tactile startle response in recombinant congenic strains of mice:QTL mapping and comparison with acoustic PPI

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Journal of Genetics and Genomics 2008年第3期35卷 139-151页

作者： adam Torkamanzehi Patricia Boksa Ridha Joober University of Sistan and Baluchestan Douglas Hospital Research Centre

Prepulse inhibition （PPI） of the startle response is a psychophysiological measure of sensorimotor gating believed to be cross-modal between different sensory systems. We analyzed the tactile startle response （TSR） and PPI of TSR （tPPI）, using light as a prepulse stimulus, in the mouse strains A/J and C57BL/6J and 36 recombinant congenic strains derived from them. Parental strains were significantly different for TSR, but were comparable for tPPI. Among the congenic strains, variation for TSR was significant in both genetic backgrounds, but that of tPPI was significant only for the C57BL/6J background. Provisional mapping for loci modulating TSR and tPPI was carried out. Using mapping data from our previous study on acoustic startle responses （ASR） and PPI of ASR （aPPI）, no common markers for aPPI and tPPI were identified. However, some markers were significantly associated with both ASR and TSR, at least in one genetic background. These results indicate cross-modal genetic regulation for the startle response but not for PPI, in these mouse strains.

关键词： tactile startle response prepulse inhibition (PPI) acoustic startle response recombinant congenic strains of mice QTL mapping microsatellite markers

Phylogenetic status of Pneumocystis from corticosteroid-treated gerbils

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Science China(Life Sciences) 2010年第10期53卷 1239-1246页

作者： RODNEY D adam Department of Medicine and Immunobiology University of Arizona College of Medicine

Pneumocystis spp. infect the lungs of multiple mammalian species and cause disease in immunosuppressed individuals. The Pneumocystis isolates that have been studied to date fall into two major clades, those from primates and those from rodents. Within each of these clades, different species have been described on the basis of host specificity and differences in sequence and morphology. Here, we demonstrate that dexamethasone immunosuppression consistently results in histologically apparent lung infection in gerbils (28/35 animals). Sequence analysis of the 18S, 5.8S and internal transcribed spacer regions of the rDNA and a portion of the mitochondrial large subunit rDNA demonstrated that this gerbil Pneumocystis is grouped with other rodent Pneumocystis spp., but is distinct from them. Our results suggest that gerbil Pneumocystis differs sufficiently from Pneumocystis species found in other rodents to be considered a separate species.

关键词： 5.8S rRNA gene gerbil internal transcribed spacers (ITS) mitochondrial large subunit (mtLS) rRNA gene 18S rRNA gene Pneumocystis

Landmark learning by the Ozark zigzag salamander Plethodon angusticlavius

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Current Zoology 2011年第4期57卷 485-490页

作者： adam L. CRANE Alicia MATHIS Department of Biology Missouri State University Springfield MO 65897 USA

Although salamanders have been shown to respond to classical conditioning, spatial learning has been largely unstudied. We tested whether salamanders could learn to locate foraging areas by using landmarks. We trained 10 salamanders Plethodon angusticlavius to use landmarks （small rocks） to locate patches within the arena containing food （blackworms Lumbriculus variegatus）. At the comers of each square testing arena were four plastic dishes, one containing blackworms and the other three empty. A rock was placed in front of the dish containing blackworms, and the location of the food-dish was randomly chosen for each training trial. A control group was also trained to feed on blackworms in the presence of a rock, but the rock was positioned randomly among the four dish locations so that the rock was not a reliable landmark for the worms. Although the length of the training period for individual salamanders varied （22-38 trainings per individual）, the mean number of trainings for salamanders in the control and experimental groups was equal （30 training trials）. During testing, no blackworms were present to eliminate any visual or chemical cues emanating directly from the prey. Individuals trained with the rock landmarks spent sig- nificantly more time in the area of the landmark than did control salamanders [Current Zoology 57 （4）： 485-490, 2011].

关键词： Landmark learning Spatial learning Salamander learning Plethodon angusticlavius Beacon