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Institution

Indiana University

EducationBloomington, Indiana, United States
About: Indiana University is a education organization based out in Bloomington, Indiana, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 64480 authors who have published 150058 publications receiving 6392902 citations. The organization is also known as: Indiana University system & indiana.edu.


Papers
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Journal ArticleDOI
TL;DR: In index cases from 1,100 German families with gynecological malignancies, the first unambiguous evidence of highly penetrant mutations associated with human cancer in a RAD51 paralog is provided and support the 'common disease, rare allele' hypothesis.
Abstract: Germline mutations in a number of genes involved in the recombinational repair of DNA double-strand breaks are associated with predisposition to breast and ovarian cancer. RAD51C is essential for homologous recombination repair, and a biallelic missense mutation can cause a Fanconi anemia-like phenotype. In index cases from 1,100 German families with gynecological malignancies, we identified six monoallelic pathogenic mutations in RAD51C that confer an increased risk for breast and ovarian cancer. These include two frameshift-causing insertions, two splice-site mutations and two nonfunctional missense mutations. The mutations were found exclusively within 480 pedigrees with the occurrence of both breast and ovarian tumors (BC/OC; 1.3%) and not in 620 pedigrees with breast cancer only or in 2,912 healthy German controls. These results provide the first unambiguous evidence of highly penetrant mutations associated with human cancer in a RAD51 paralog and support the 'common disease, rare allele' hypothesis.

691 citations

Posted Content
TL;DR: The Intrapreneurial Assessment Instrument (IAIAI) as discussed by the authors is used to determine the internal environment of organizations, especially as it pertains to their capability to create and support intrapreneurship activity.
Abstract: This study examines the dimensions of intrapreneurship culture and offers an instrument for assessing the effectiveness of an employee training program. The Intrapreneurial Assessment Instrument (IAI) is used to determine the internal environment of organizations, especially as it pertains to their capability to create and support intrapreneurial activity. A review of prior research identified a set of factors likely to be conducive to intrapreneurship. These were used to draw up the IAI; the tool was then tested in a training program in a Fortune 500 firm in the US Midwest. The results identified a number of environmental factors present in organizations implementing intrapreneurial concepts. Three initial factor descriptions are offered as fostering entrepreneurial activity inside corporations: (1) management support for intrapreneurship, (2) organizational structure, and (3) resource availability. The empirical evidence supports the need for structure associated with intrapreneuring in various organizations, and validates intrapreneurship training as an important means for changing individual perceptions about the work environment. Recommendations for further research include both the refining of the concept "intrapreneuring" and its generating environment. (CBS)

691 citations

Journal ArticleDOI
TL;DR: The authors analyzes Nash equilibria in a simple model of an economy with jurisdictions engaging in fiscal competition and finds that small-number Nash equilibrium in which tax rates are the strategic variables do not coincide with Nash equilibrium with public expenditure levels.

690 citations

Journal ArticleDOI
TL;DR: Regression analysis showed a significant nonlinear relationship between suppressed intracortical bone remodeling and microdamage accumulation as well as a significant linear relationship between micro damage accumulation and reduced toughness.
Abstract: It has been hypothesized that suppression of bone remodeling allows microdamage to accumulate, leading to increased bone fragility. This study evaluated the effects of reduced bone turnover produced by bisphosphonates on microdamage accumulation and biomechanical properties of cortical bone in the dog rib. Thirty-six female beagles, 1-2 years old, were divided into three groups. The control group (CNT) was treated daily for 12 months with saline vehicle. The remaining two groups were treated daily with risedronate (RIS) at a dose of 0.5 mg/kg per day or alendronate (ALN) at 1.0 mg/kg per day orally. After sacrifice, the right ninth rib was assigned to cortical histomorphometry or microdamage analysis. The left ninth rib was tested to failure in three-point bending. Total cross-sectional bone area was significantly increased in both RIS and ALN compared with CNT, whereas cortical area did not differ significantly among groups. One-year treatment with RIS or ALN significantly suppressed intracortical remodeling (RIS, 53%; ALN, 68%) without impairment of mineralization and significantly increased microdamage accumulation in both RIS (155%) and ALN (322%) compared with CNT. Although bone strength and stiffness were not significantly affected by the treatments, bone toughness declined significantly in ALN (20%). Regression analysis showed a significant nonlinear relationship between suppressed intracortical bone remodeling and microdamage accumulation as well as a significant linear relationship between microdamage accumulation and reduced toughness. This study showed that suppression of bone turnover by high doses of bisphosphonates is associated with microdamage accumulation and reduced some mechanical properties of bone.

690 citations

Journal ArticleDOI
01 Sep 2003-Ecology
TL;DR: It is suggested that positive feedback between plants and soil microbes plays a central role in early successional communities, while negative feedback contributes both to species replacements and to diversification in later successional Communities.
Abstract: A growing body of research on plant-microbe interactions in soil is con- tributing to the development of a new, microbially based perspective on plant community ecology. Soil-dwelling microorganisms are diverse, and interactions with plants vary with respect to specificity, environmental heterogeneity, and fitness impact. Two microbial pro- cesses that may exert key influences on plant community structure and dynamics are mi- crobial mediation of niche differentiation in resource use and feedback dynamics between the plant and soil community. The niche differentiation hypothesis is based on observations that soil nutrients occur in different chemical forms, that different enzymes are required for plant access to these nutrients, and that soil microorganisms are a major source of these enzymes. We predict that plant nutrient partitioning arises from differential associations of plant species with microbes able to access different nutrient pools. Feedback dynamics result from changes in the soil community generated by the specificity of response in plant- microbe interactions. We suggest that positive feedback between plants and soil microbes plays a central role in early successional communities, while negative feedback contributes both to species replacements and to diversification in later successional communities. We further suggest that plant-microbe interactions in the soil are an important organizing force for large-scale spatial gradients in species richness. The relative balance of positive feedback (a homogenizing force) and negative feedback (a diversifying force) may contribute to observed latitudinal (and altitudinal) diversity patterns. Empirical tests of these ideas are needed, but a microbially based perspective for plant ecology promises to contribute to our understanding of long-standing issues in ecology, and to reveal new areas of future research.

689 citations


Authors

Showing all 64884 results

NameH-indexPapersCitations
Frank B. Hu2501675253464
Stuart H. Orkin186715112182
Bruce M. Spiegelman179434158009
David R. Williams1782034138789
D. M. Strom1763167194314
Markus Antonietti1761068127235
Lei Jiang1702244135205
Brenda W.J.H. Penninx1701139119082
Nahum Sonenberg167647104053
Carl W. Cotman165809105323
Yang Yang1642704144071
Jaakko Kaprio1631532126320
Ralph A. DeFronzo160759132993
Gavin Davies1592036149835
Tyler Jacks158463115172
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023127
2022694
20217,272
20207,310
20196,943
20186,496