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Articles 1 - 30 of 1301
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Polyester-Graft-Phosphorylcholine Prepared By Ring-Opening Polymerization And Click Chemistry, Beth M. Cooper, Delphine Chan-Seng, Debasis Samanta, Xiongfei Zhang, Sangram Parelkar, Todd S. Emrick
Polyester-Graft-Phosphorylcholine Prepared By Ring-Opening Polymerization And Click Chemistry, Beth M. Cooper, Delphine Chan-Seng, Debasis Samanta, Xiongfei Zhang, Sangram Parelkar, Todd S. Emrick
Todd S. Emrick
Phosphorylcholine (PC)-substitution on aliphatic polyesters is accomplished by click chemistry with PC-substituted azides.
Construction Of Biologically Productive Artificial Tidal Flats With Solidified Sea Bottom Sediments, Daizo Imai, Satoshi Kaneco, Ahmed H.A. Dabwan, Hideyuki Katsumata, Tohru Suzuki, Tadaya Kato, Kiyohisa Ohta
Construction Of Biologically Productive Artificial Tidal Flats With Solidified Sea Bottom Sediments, Daizo Imai, Satoshi Kaneco, Ahmed H.A. Dabwan, Hideyuki Katsumata, Tohru Suzuki, Tadaya Kato, Kiyohisa Ohta
International Journal of Soil, Sediment and Water
Ago Bay is a typical enclosed coastal sea that is connected to the Pacific Ocean via a very narrow and shallow entrance. The bay has been organically contaminated by the practice of culturing pearls, which has been ongoing for the past 110 years. To address this problem, a new technology — the Hi-Biah-System (HBS) —, which dewaters muddy dredged sediments and changes the muddy sediments for raw materials of tidal flat, was introduced in 2005. The solidified product from the sediments with the HBS was used to construct the tidal flat. The purpose of this study was to evaluate the …
Mercury And Cyanide Used As Indicators Of Sediment Transport In Ephemeral Washes At The Techatticup Mine And Mill Site, Nelson, Nevada (Usa), Douglas Brian Sims, Anthony Francis
Mercury And Cyanide Used As Indicators Of Sediment Transport In Ephemeral Washes At The Techatticup Mine And Mill Site, Nelson, Nevada (Usa), Douglas Brian Sims, Anthony Francis
International Journal of Soil, Sediment and Water
Mercury (Hg) and cyanide (CN-) are used as indicators of aquatic transport down gradient in ephemeral washes. The pattern of transport for Hg and CN- should mimic other metals (As, Cu, Cr, Pb, Ni, Ba) found in the soils. Hg and CN- were chosen to illustrate transport in surface soils because Hg and CN- are utilized in the milling process and Hg is available from the local geology. Stamp mills that utilize Hg and CN- flotation concentrate naturally occurring metals as byproducts. Soil samples collected from a wash system bisecting the mine waste site contained metal concentrations significantly above background …
Experimental And Biogeochemcial Modeling Studies On Arsenic Release In Soil Under Anaerobic Condition, Md. Abdul Halim, Kenji Jinno, Abdur Razzak, Keita Oda, Yoshinari Hiroshiro
Experimental And Biogeochemcial Modeling Studies On Arsenic Release In Soil Under Anaerobic Condition, Md. Abdul Halim, Kenji Jinno, Abdur Razzak, Keita Oda, Yoshinari Hiroshiro
International Journal of Soil, Sediment and Water
The identification of release mechanism of arsenic may assist in designing safe and effective remediation strategies, due to its severe toxicity effect for the human body. In this regards, investigations were carried out to observe the release of As from soil into water. It was found that As concentration increased with decreasing oxidation reduction potential. Arsenic concentrations demonstrated negative covariation with the concentrations of NO3&#; but strongly correlated with DOC and Fe concentrations. Batch leaching tests at different pH conditions showed a strong pH dependence on arsenic and iron leaching. A numerical simulation of arsenic transport model, coupled with microbially …
Polycyclic Aromatic Hydrocarbons (Pahs) In Urban Soil: A Florida Risk Assessment Perspective, Christopher M. Teaf
Polycyclic Aromatic Hydrocarbons (Pahs) In Urban Soil: A Florida Risk Assessment Perspective, Christopher M. Teaf
International Journal of Soil, Sediment and Water
Over the past decade, polycyclic aromatic hydrocarbons (PAHs) have steadily climbed in importance on the CERCLA list of hazardous substances. Though the listing does not necessarily imply that these chemicals exhibit the greatest degree of toxicity, such recognition by ATSDR and USEPA is predicated at least in part on their demonstrated ubiquity, coupled with toxicity considerations. Regulatory agencies increasingly are under pressure to define and interpret data describing urban background levels, and to appropriately determine the relative importance of waste-producing activities and concentrations resulting from typical natural and/or human activity. Three case studies from Florida are presented that confirm the …
Factor Analysis Reveals Effects Of Reducing Conditions On The Fate And Transport Of Rdx In Groundwater, Michael W. Morris
Factor Analysis Reveals Effects Of Reducing Conditions On The Fate And Transport Of Rdx In Groundwater, Michael W. Morris
International Journal of Soil, Sediment and Water
Groundwater investigations conducted at the Massachusetts Military Reservation (MMR) show the impact of historic activities on the development of groundwater contaminant plumes emanating from military ranges. Several of the plumes, located on the southeastern side of the reservation, contain elevated concentrations of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX). In most cases, these plumes show continuity from the source to the leading edge, indicating that very little attenuation of RDX is occurring in the aquifer. Interesting exceptions to this trend are locations where plumes consisting of RDX and perchlorate intercept part of the aquifer that was previously impacted by a fuel spill; reducing conditions due …
Design And Demonstration Of A Small-Animal Up-Conversion Imager, Christopher Salthouse, Scott Hildebrand, Ralph Weissleder, Umar Mahmood
Design And Demonstration Of A Small-Animal Up-Conversion Imager, Christopher Salthouse, Scott Hildebrand, Ralph Weissleder, Umar Mahmood
Christopher Salthouse
This first small-animal up-conversion imager (SAUCI) was developed and used for in-vivo imaging of up-converting nanoparticles (UCNs.) Unlike traditional fluorophores, UCNs absorb multiple lower-energy photons and emit a single higher-energy photon. This unique physical process makes it possible to image deeper into tissue with lower background signals. In vivo imaging of particle accumulation in the liver was demonstrated following intravenous injection of particles.
Nelig Meeting - December 5, 2008, New England Library Instruction Group
Nelig Meeting - December 5, 2008, New England Library Instruction Group
New England Library Instruction Group
NELIG quarterly meeting held at three locations simultaneously: Franklin Pierce University, Wentworth Institute of Technology, and Yale University.
Review Of L.B. Van Der Meer, Liber Linteus Zagrabiensis, Miles Beckwith
Review Of L.B. Van Der Meer, Liber Linteus Zagrabiensis, Miles Beckwith
Rasenna: Journal of the Center for Etruscan Studies
No abstract provided.
The Genetic Structure Of An Historical Population: A Study Of Marriage And Fertility In Old Deerfield, Massachusetts (Titlepage), Alan C. Swedlund
The Genetic Structure Of An Historical Population: A Study Of Marriage And Fertility In Old Deerfield, Massachusetts (Titlepage), Alan C. Swedlund
Research Report 07: The Genetic Structure of an Historical Population: a Study of Marriage and Fertility in Old Deerfield, Massachusetts
No abstract provided.
The Genetic Structure Of An Historical Population: A Study Of Marriage And Fertility In Old Deerfield, Massachusetts(Bibliography), Alan C. Swedlund
The Genetic Structure Of An Historical Population: A Study Of Marriage And Fertility In Old Deerfield, Massachusetts(Bibliography), Alan C. Swedlund
Research Report 07: The Genetic Structure of an Historical Population: a Study of Marriage and Fertility in Old Deerfield, Massachusetts
No abstract provided.
Chapter 5, Summary And Conclusion, Alan C. Swedlund
Chapter 5, Summary And Conclusion, Alan C. Swedlund
Research Report 07: The Genetic Structure of an Historical Population: a Study of Marriage and Fertility in Old Deerfield, Massachusetts
No abstract provided.
Chapter 1, Background Of The Study, Alan C. Swedlund
Chapter 1, Background Of The Study, Alan C. Swedlund
Research Report 07: The Genetic Structure of an Historical Population: a Study of Marriage and Fertility in Old Deerfield, Massachusetts
No abstract provided.
Chapter 2, Population Numbers, Alan C. Swedlund
Chapter 2, Population Numbers, Alan C. Swedlund
Research Report 07: The Genetic Structure of an Historical Population: a Study of Marriage and Fertility in Old Deerfield, Massachusetts
No abstract provided.
Chapter 4, Selection, Alan C. Swedlund
Chapter 4, Selection, Alan C. Swedlund
Research Report 07: The Genetic Structure of an Historical Population: a Study of Marriage and Fertility in Old Deerfield, Massachusetts
No abstract provided.
Chapter 3, Migration, Alan C. Swedlund
Chapter 3, Migration, Alan C. Swedlund
Research Report 07: The Genetic Structure of an Historical Population: a Study of Marriage and Fertility in Old Deerfield, Massachusetts
No abstract provided.
The Genetic Structure Of An Historical Population: A Study Of Marriage And Fertility In Old Deerfield, Massachusetts (Full Text), Alan C. Swedlund
The Genetic Structure Of An Historical Population: A Study Of Marriage And Fertility In Old Deerfield, Massachusetts (Full Text), Alan C. Swedlund
Research Report 07: The Genetic Structure of an Historical Population: a Study of Marriage and Fertility in Old Deerfield, Massachusetts
No abstract provided.
Chapter 2, Greek Ethnic Survival Under Ottoman Domination, Perry A. Bialor
Chapter 2, Greek Ethnic Survival Under Ottoman Domination, Perry A. Bialor
Research Report 09: The Limits of Integration: Ethnicity and Nationalism in Modern Europe
No abstract provided.
Chapter 4, The Maintenance Of Ethnic Identity In Catalonia, Oriol Pi-Sunyer
Chapter 4, The Maintenance Of Ethnic Identity In Catalonia, Oriol Pi-Sunyer
Research Report 09: The Limits of Integration: Ethnicity and Nationalism in Modern Europe
No abstract provided.
Chapter 3, Breton Nationalism And Modern France: The Permanent Revolution, David H. Fortier
Chapter 3, Breton Nationalism And Modern France: The Permanent Revolution, David H. Fortier
Research Report 09: The Limits of Integration: Ethnicity and Nationalism in Modern Europe
No abstract provided.
Chapter 1, Some Sociolinguistic Observations On The Relationship Between Czech And Slovak, Zdeněk Salzmann
Chapter 1, Some Sociolinguistic Observations On The Relationship Between Czech And Slovak, Zdeněk Salzmann
Research Report 09: The Limits of Integration: Ethnicity and Nationalism in Modern Europe
No abstract provided.
Chapter 5, Basque Nationalism, William A. Douglass, Milton Da Silva
Chapter 5, Basque Nationalism, William A. Douglass, Milton Da Silva
Research Report 09: The Limits of Integration: Ethnicity and Nationalism in Modern Europe
No abstract provided.
Book I, Otto Vogl: Papers And Patents, 1948-1970, Jane C. Vogl
Book I, Otto Vogl: Papers And Patents, 1948-1970, Jane C. Vogl
Emeritus Faculty Author Gallery
Books I-XII include citations to Otto Vogl's publications and patents. Printed versions of these twelve volumes are also available in the Integrated Sciences and Engineering Library of the University of Massachusetts in Amherst. MA, Lederle Graduate Research Center. The printed volumes include the full reprints of all cited publications.
Centers Of Polymer Science: Introduction, Otto Vogl
Centers Of Polymer Science: Introduction, Otto Vogl
Emeritus Faculty Author Gallery
Centers of Polymer Science describes polymer research activities taking place in Europe, Asia, and Australia primarily during the years between 1980 and 2000. This series of articles shows and records the activity in Polymer Science in this part of polymer history.
Dose-Response, Vol 6, No 4, Table Of Contents
Dose-Response, Vol 6, No 4, Table Of Contents
Dose-Response: An International Journal
No abstract provided.
Dose-Response, Vol 6, No 4, Front Matter
Dose-Response, Vol 6, No 4, Front Matter
Dose-Response: An International Journal
No abstract provided.
Modeling Of Respiratory System Dysfunction Among Nuclear Workers: A Preliminary Study, Zd Belyaeva, Sv Osovets, Br Scott, Gv Zhuntova, Es Grigoryeva
Modeling Of Respiratory System Dysfunction Among Nuclear Workers: A Preliminary Study, Zd Belyaeva, Sv Osovets, Br Scott, Gv Zhuntova, Es Grigoryeva
Dose-Response: An International Journal
Numerous studies have reported on cancers among Mayak Production Association (PA) nuclear workers. Other studies have reported on serious deterministic effects of large radiation doses for the same population. This study relates to deterministic effects (respiratory system dysfunction) in Mayak workers after relatively small chronic radiation doses (alpha plus gamma). Because cigarette smoke is a confounding factor, we also account for smoking effects. Here we present a new empirical mathematical model that was introduced for simultaneous assessment of radiation and cigarette-smoking-related damage to the respiratory system. The model incorporates absolute thresholds for smoking- and radiation-induced respiratory system dysfunction. As the …
Summary Of Dose-Response Modeling For Developmental Toxicity Studies, Daniel L Hunt, Shesh N Rai, Chin-Shang Li
Summary Of Dose-Response Modeling For Developmental Toxicity Studies, Daniel L Hunt, Shesh N Rai, Chin-Shang Li
Dose-Response: An International Journal
Developmental toxicity studies are an important area in the field of toxicology. Endpoints measured on fetuses include weight and indicators of death and malformation. Binary indicator measures are typically summed over the litter and a discrete distribution is assumed to model the number of adversely affected fetuses. Additionally, there is noticeable variation in the litter responses within dose groups that should be taken into account when modeling. Finally, the dose-response pattern in these studies exhibits a threshold effect. The threshold dose-response model is the default model for non-carcinogenic risk assessment, according to the USEPA, and is encouraged by the agency …
Atomic Bomb Health Benefits, Td Luckey
Atomic Bomb Health Benefits, Td Luckey
Dose-Response: An International Journal
Media reports of deaths and devastation produced by atomic bombs convinced people around the world that all ionizing radiation is harmful. This concentrated attention on fear of miniscule doses of radiation. Soon the linear no threshold (LNT) paradigm was converted into laws. Scientifically valid information about the health benefits from low dose irradiation was ignored. Here are studies which show increased health in Japanese survivors of atomic bombs. Parameters include decreased mutation, leukemia and solid tissue cancer mortality rates, and increased average lifespan. Each study exhibits a threshold that repudiates the LNT dogma. The average threshold for acute exposures to …
Complex Mixture-Associated Hormesis And Toxicity: The Case Of Leather Tanning Industry, Giovanni Pagano, Giuseppe Castello, Marialuisa Gallo, Ilaria Borriello, Marco Guida
Complex Mixture-Associated Hormesis And Toxicity: The Case Of Leather Tanning Industry, Giovanni Pagano, Giuseppe Castello, Marialuisa Gallo, Ilaria Borriello, Marco Guida
Dose-Response: An International Journal
A series of studies investigated the toxicities of tannery-derived complex mixtures, i.e. vegetable tannin (VT) from Acacia sp. or phenol-based synthetic tannin (ST), and wastewater from tannin-based vs. chromium-based tanneries. Toxicity was evaluated by multiple bioassays including developmental defects and loss of fertilization rate in sea urchin embryos and sperm (Paracentrotus lividus and Sphaerechinus granularis), and algal growth inhibition (Dunaliella tertiolecta and Selenastrum capricornutum). Both VT and ST water extracts resulted in hormetic effects at concentrations ranging 0.1 to 0.3%, and toxicity at levels ≥1%, both in sea urchin embryo and sperm, and in algal growth bioassays. …