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Institution

University of Hamburg

EducationHamburg, Germany
About: University of Hamburg is a education organization based out in Hamburg, Germany. It is known for research contribution in the topics: Population & Laser. The organization has 45564 authors who have published 89286 publications receiving 2850161 citations. The organization is also known as: Hamburg University.


Papers
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Journal ArticleDOI
TL;DR: To ease communication between researchers and practitioners, a classification scheme of assembly line balancing is provided, which is a valuable step in identifying remaining research challenges which might contribute to closing the gap.

694 citations

Posted Content
01 Jan 2006
TL;DR: In this paper, a classification scheme of assembly line balancing problems is proposed to ease communication between researchers and practitioners, and a valuable step in identifying remaining research challenges which might contribute to closing the gap between requirements of real configuration problems and the status of research.
Abstract: Assembly lines are special flow-line production systems which are of great importance in the indus-trial production of high quantity standardized commodities. Recently, assembly lines even gained importance in low volume production of customized products (mass-customization). Due to high capital requirements when installing or redesigning a line, its configuration planning is of great rele-vance for practitioners. Accordingly, this attracted attention of plenty researchers, who tried to sup-port real-world configuration planning by suited optimization models (assembly line balancing prob-lems). In spite of the enormous academic effort in assembly line balancing, there remains a consider-able gap between requirements of real configuration problems and the status of research. To ease communication between researchers and practitioners, we provide a classification scheme of assem-bly line balancing. This is a valuable step in identifying remaining research challenges which might contribute to closing the gap.

690 citations

Journal ArticleDOI
TL;DR: The entire nucleotide sequence of the cDNA is reported, which encodes an open reading frame of 396 amino acids and offers the potential for local synthesis of the protein at activated postsynaptic sites and may underlie synapse-specific modifications during long-term plastic events.
Abstract: Trans-synaptic activation of gene expression is linked to long-term plastic adaptations in the nervous system. To examine the molecular program induced by synaptic activity, we have employed molecular cloning techniques to identify an immediate early gene that is rapidly induced in the brain. We here report the entire nucleotide sequence of the cDNA, which encodes an open reading frame of 396 amino acids. Within the hippocampus, constitutive expression was low. Basal levels of expression in the cortex were high but can be markedly reduced by blockade of N-methyl-D-aspartate receptors. By contrast, synaptic activity induced by convulsive seizures increased mRNA levels in neurons of the cortex and hippocampus. High-frequency stimulation of the perforant path resulted in long-term potentiation and a spatially confined dramatic increase in the level of mRNA in the granule cells of the ipsilateral dentate gyrus. Transcripts were localized to the soma and to the dendrites of the granule cells. The dendritic localization of the transcripts offers the potential for local synthesis of the protein at activated postsynaptic sites and may underlie synapse-specific modifications during long-term plastic events.

689 citations

Journal ArticleDOI
01 Feb 1996-Nature
TL;DR: Investigation of 11 kindreds with renal tubular disorders for CLCN5 abnormalities identified three nonsense, four missense and two donor splice site mutations, together with one intragenic deletion and one micro-deletion encompassing the entire gene.
Abstract: Kidney stones (nephrolithiasis), which affect 12% of males and 5% of females in the western world, are familial in 45% of patients and are most commonly associated with hypercalciuria. Three disorders of hypercalciuric nephrolithiasis (Dent's disease, X-linked recessive nephrolithiasis (XRN), and X-linked recessive hypophosphataemic rickets (XLRH)) have been mapped to Xp11.22 (refs 5-7). A microdeletion in one Dent's disease kindred allowed the identification of a candidate gene, CLCN5 (refs 8,9) which encodes a putative renal chloride channel. Here we report the investigation of 11 kindreds with these renal tubular disorders for CLCN5 abnormalities; this identified three nonsense, four missense and two donor splice site mutations, together with one intragenic deletion and one microdeletion encompassing the entire gene. Heterologous expression of wild-type CLCN5 in Xenopus oocytes yielded outwardly rectifying chloride currents, which were either abolished or markedly reduced by the mutations. The common aetiology for Dent's disease, XRN and XLRH indicates that CLCN5 may be involved in other renal tubular disorders associated with kidney stones.

687 citations


Authors

Showing all 46072 results

NameH-indexPapersCitations
Rudolf Jaenisch206606178436
Bruce M. Psaty1811205138244
Stefan Schreiber1781233138528
Chris Sander178713233287
Dennis J. Selkoe177607145825
Daniel R. Weinberger177879128450
Ramachandran S. Vasan1721100138108
Bradley Cox1692150156200
Anders Björklund16576984268
J. S. Lange1602083145919
Hannes Jung1592069125069
Andrew D. Hamilton1511334105439
Jongmin Lee1502257134772
Teresa Lenz1501718114725
Stefanie Dimmeler14757481658
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023282
2022817
20215,784
20205,491
20194,994
20184,587