A5036031490- Historical Economic and Social Studies
- Cervical Cancer and HPV Research
- Wildlife Ecology and Conservation
- Historical Studies on Reproduction, Gender, Health, and Societal Changes
- Insurance, Mortality, Demography, Risk Management
- Gender, Labor, and Family Dynamics
- European and International Law Studies
- Human-Animal Interaction Studies
- Land Use and Ecosystem Services
- Conservation, Biodiversity, and Resource Management
- Molecular spectroscopy and chirality
- Rangeland Management and Livestock Ecology
- Global Health Care Issues
- Census and Population Estimation
- Chemical Reaction Mechanisms
- Sulfur-Based Synthesis Techniques
- Urban, Neighborhood, and Segregation Studies
- demographic modeling and climate adaptation
- China's Socioeconomic Reforms and Governance
- Urbanization and City Planning
- Molecular Spectroscopy and Structure
- Animal and Plant Science Education
- Migration, Ethnicity, and Economy
- Vanadium and Halogenation Chemistry
- Historical Psychiatry and Medical Practices
University of Colorado Boulder
2017-2023
California State University, Stanislaus
2021
North Carolina State University
2016-2020
Durham University
2011
California Institute of Technology
2005-2009
The Open University
1970-2005
University at Buffalo, State University of New York
2000-2003
SUNY Geneseo
2001
Lancet Laboratories
1987
Prince of Wales Hospital
1982-1987
Dendrimeric polyphenylsulfides, -selenides, and -tellurides are prepared in high yield using propyloxy spacers to connect the phenylchalcogeno groups dendrimeric core. The selenides tellurides catalyze oxidation of bromide with hydrogen peroxide give positive bromine species that can be captured by cyclohexene two-phase systems. corresponding sulfides show no catalytic activity. increase rate catalysis followed statistical effects for 1, 6, 12 phenyltelluro groups. However, exceeds...
1. Problems of the Population Historian 2. T. R. Malthus and Eilert Sundt 3. The Growth 4. Marriage Fertility 5. Social Structure 6. Determinants Marital Age Patterns 7. Conclusions.
Abstract Interactions between humans and wildlife resulting in negative impacts are among the most pressing conservation challenges globally. In regions of smallholder livestock crop production, interactions with can compromise human well‐being motivate sentiment retaliation toward wildlife, undermining goals. Although may be unavoidable when land use overlap, scant large‐scale data exist quantifying direct costs to livelihoods. a landscape global importance for southern Africa, we...
Abstract The chironomids of Lake Mývatn show extreme population fluctuations that affect most aspects the lake ecosystem. During periods high chironomid densities, larvae comprise over 90% aquatic secondary production. Here, we substantially stimulate benthic gross primary production ( GPP ) and net NPP ), despite consuming algae. Benthic in experimental mesocosms with 140,000 larvae/m 2 was 71% higher than no larvae. Similarly, chlorophyll a concentrations increased significantly range...
Abstract The Kazavango‐Zambezi Transfrontier Conservation Area is home to the largest remaining elephant population in Africa but also site of high levels human‐elephant conflict through crop depredation. Offsetting costs coexisting with elephants this area critical incentivizing conservation within community‐based (CBC) areas, and trophy hunting has long been touted as a method for generating revenue communities from wildlife. However, idea that sustainable can offset depredation remains...
This volume contains a selection of essays by different authors. The have as common theme the role demographic change since mid-nineteenth century in explaining some topics present-day social concern Britain. Chapters are included on unemployment and its relationship with resources population factors changing conditions for children regional temporal variations household structure decline mortality improvements nations health working wives their families impact immigration British society....
Abstract Although conformational analysis by NMR of ethylene glycol indicates generally strong preferences for the gauche conformation in solvents ranging from water to chloroform, bulk evidence that intramolecular hydrogen bonding between hydroxyl groups is unlikely be a significant factor determining preference, except possibly fairly non‐polar solvents. The ‘ effect’ clearly very important, especially aqueous solution. Copyright © 2005 John Wiley & Sons, Ltd.
Several scenarios were evaluated to explain the large "dendrimer effect" observed in bromination of cyclohexene with H(2)O(2) and NaBr catalyzed by addition Frechét-type dendrimers terminating -O(CH(2))(3)SePh groups. Although phenylseleninic acid was an efficient catalyst for oxidation H(2)O(2), first-order rate constants selenoxide elimination too small produce PhSeO(2)H at a sufficient rates catalysis no dendrimer effect elimination. An induction period using 1-SePh as Br(-) H(2)O(2). The...
Arylseleninic acids were found to be catalysts for the oxidation of bromide with hydrogen peroxide in a two-phase mixture ether and pH 6 phosphate buffer. Benzeneseleninic acid (3) 4-methoxyphenylseleninic (4) more efficient than 3,5-bis(trifluoromethyl)phenylseleninic (1), 4-nitrophenylseleninic (2), 4-dimethylaminophenylseleninic (5), 2,4,6-trimethylphenylseleninic (6). A variety organic substrates efficiently brominated under these conditions using 5−10 mol % commercially available...
Service learning is a community-based educational approach where college students are connected to academic content through active participation in planned community experiences. Therefore, service the form of civic engagement that we have used connect Chemistry undergraduate with K–12 students, teachers, and parents our community. We developed several outreach programs hands-on experiences use knowledge skills learned courses laboratories motivate more precollege toward positive attitude...
Conducting research on coupled social-ecological systems (SESs) presents inherent challenges, such as coordination across disparate disciplines or integrating multiple scales and levels of governance. To overcome these common we propose that structuring the design itself according to SES principles provides for integrative execution science. First, starting with pilot work, human natural science researchers should work a team identify access multi-level entry points (i.e. direct engagement)...