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Population Density, Biomass, And Age-Class Structure Of An Invasive Clam Corbicula Fluminea In Rivers Of The Lower San Joaquin River Watershed, California, Larry R. Brown, Janet K. Thompson, Karen Higgins, Lisa V. Lucas

Western North American Naturalist

Corbicula fluminea is well known as an invasive filter-feeding freshwater bivalve with a variety of effects on ecosystem processes. However, C. fluminea has been relatively unstudied in the rivers of the western United States. In June 2003, we sampled C. fluminea at 16 sites in the San Joaquin River watershed of California, which was invaded by C. fluminea in the 1940s. Corbicula fluminea was common in 2 tributaries to the San Joaquin River, reaching densities of 200 clams · m⁻², but was rare in the San Joaquin River. Biomass followed a similar pattern. Clams of the same age …

There Is No Valid Record Of Cliff Chipmunk (Tamias Dorsalis) In The Sandia Mountains, New Mexico, Jennifer K. Frey

Western North American Naturalist

A report of the cliff chipmunk (Tamias dorsalis) from the Sandia Mountains, New Mexico, was erroneous. The capture location of the specimen was actually the Rio Puerco drainage in Sandoval County. There are no records of the cliff chipmunk from the Sandia Mountains or elsewhere east of the Rio Grande.

Increased Willow Heights Along Northern Yellowstone's Blacktail Deer Creek Following Wolf Reintroduction, Robert L. Beschta, William J. Ripple

Western North American Naturalist

Gray wolves (Canis lupus) were reintroduced into Yellowstone National Park in 1995–1996. In August 2004 we measured plant architecture of Geyer willow (Salix geyeriana) stems along three 100-m reaches of Blacktail Deer Creek in Yellowstone's northern elk (Cervus elaphus) winter range to evaluate changes in patterns of browsing and height growth following wolf reintroduction. Average browsing intensities (n = 3 stream reaches) of 100% in 1997 decreased to 0%–55% by 2003, whereas average stem heights of 25–74 cm in 1997 increased to 149–268 cm by 2003, indicating that willow height growth was inversely …

Censusing Bobcats Using Remote Cameras, Eveline S. Larrucea, Gianluca Serra, Michael M. Jaeger, Reginald H. Barrett

Western North American Naturalist

We estimated bobcat (Lynx rufus) density for 3 different locations in northern California using active infrared-triggered cameras. Using differences in pelage pattern as well as other physical characteristics, we identified individual bobcats from photographs, and used mark-recapture techniques to estimate population density. Camera density affected the precision of population estimates. The same population was estimated using camera densities of 0.5, 1, 2, 4, 6, and 8 cameras · km⁻². Higher camera densities resulted in more captures and recaptures of bobcats and, consequently, in more precise density estimates. Similarly, the number of photo-captures and recaptures increased with …

Studying Mathematics For The Sake Of The Good, Andrew Payne

The Society for Ancient Greek Philosophy Newsletter

In the Republic, Socrates describes the good as the end of all human action: “Every soul pursues the good and does what it does for its sake. It divines that the good is something but it is perplexed and cannot adequately grasp what it is or acquire the sort of stable beliefs it has about other things, and so it misses the benefits, if any, that even those other things may give.” I wish to examine how humans act for the sake of the good in the sections of the Republic following this passage. Human action is oriented toward the …

Effect Of Ramadan Fasting On Clinical Biochemical And Immunological Parameters In Healthy Fasting And Type Two Diabetes Mellitus Patients, Majid M. Mahmmod Al-Jewari

Iraqi Postgraduate Medical Journal

ABSTRACT: BACKGROUND: Ramadan fasting is one of the pillaris of islam. The fasting time is about 12-19 hours depending on the season in which Ramadan falls and the geographic position of the country. It is often a subject of discussion nether or not Ramadan fasting confer any harmful effect on the body. OBJECTIVES: The aim of this study was to evaluate the effect of Ramadan fasting on some clinical, biochemical and Immunological aspects of the healthy and type two Diabetes mellitus patients. METHODS: The study was performed on (30) healthy fasting and (30) patients with type two diabetes mellitus in …

The Role Of Oxidative Stress In The Pathogenesis Of Systemic Lupus Erythmatosus (Sle) Among Some Iraqi Patients, Ihab Ibrahim Abdulwahab

Iraqi Postgraduate Medical Journal

ABSTRACT: BACKGROUND AND OBJECTIVE: Systemic Lupus Erythematosus (SLE) is a chronic progressive autoimmune disorder with a wide spectrum of clinical and immunological abnormalities, predominantly developed in women of childbearing age, oxidative stress has been postulated in many pathological conditions including atherosclerosis , inflammatory conditions and some autoimmune disease such as multiple sclerosis , rheumatoid arthritis and Systemic Lupus Erythematosus (SLE). The present study was conducted to support the idea of oxidative stress during the pathogenesis of (SLE) among some Iraqi patients, comparing it with healthy controls group matched for the same sex and age . PATIENTS AND METHODS: Twenty-three Iraqi …

Effect Of Tamoxifin On Lymphocytes Proliferation In Patients With Breast Cancer:Cytogenic Analysis, Nidhalabdulmohymen

Iraqi Postgraduate Medical Journal

ABSTRACT : BACKGROUND: Hormonal agents such as tamoxifen (TAM) and medroxyprogesterone acetate (MPA) are used widely in the treatment of breast cancer . In this context, it is noteworthy to note that there is now much experimental and clinical evidence suggesting that sex hormones can influence immune mechanisms strongly AIM: Study the effect of tamoxifin on peripheral blood lymphocytes proliferation in breast cancer patients. MATERIALS AND METHODS: Seventy-three patients with breast tumor were included in this study. Sixty-two with malignant breast cancer and 11 with benign breast tumor.The malignant breast tumor: Intraductal carcinoma (IDC) (8 patients),Lobular carcinoma (LC) (5), and …

Fractionation Of The Rice Bran Layer And Quantification Of Vitamin E, Oryzanol, Protein, And Rice Bran Saccharide, Rebecca Schramm, Alicia Abadie, Na Hua, Zhimin Xu, Marybeth Lima

Faculty Publications

Value-added processing with respect to rice milling has traditionally treated the rice bran layer as a homogenous material that contains significant concentrations of high-value components of interest for pharmaceutical and nutraceutical applications. Investigators have shown that high-value components in the rice bran layer vary from differences in kernel-thickness, bran fraction, rice variety, and environmental conditions during the growing season. The objectives of this study were to quantify the amount of rice bran removed at pre-selected milling times and to correlate the amount of rice bran removed at each milling time with the concentration of vitamin E, gamma-oryzanol, rice bran saccharide, …

Extending The Information Partition Function: Modeling Interaction Effects In Highly Multivariate, Discrete Data, Paul C. Cannon

Theses and Dissertations

Because of the huge amounts of data made available by the technology boom in the late twentieth century, new methods are required to turn data into usable information. Much of this data is categorical in nature, which makes estimation difficult in highly multivariate settings. In this thesis we review various multivariate statistical methods, discuss various statistical methods of natural language processing (NLP), and discuss a general class of models described by Erosheva (2002) called generalized mixed membership models. We then propose extensions of the information partition function (IPF) derived by Engler (2002), Oliphant (2003), and Tolley (2006) that will allow …

Lysosomal Enzymatic Activities In Seminal Plasma Of Iraqi Patients With Male Infertility, Omar F.Abdul-Rasheed

Iraqi Postgraduate Medical Journal

ABSTRACT: BACKGROUND: Infertility is defined as the inability to conceive after one year of unprotected sexual intercourse. Some cases of male infertility are due to a specific cause whereas others are due to less obvious etiologies and results in less drastic changes in semen parameters. Arylsulfatase A, arylsulfatase B and alkaline proteinase have not been studied adequately in relation to male infertility. OBJECTIVES: To study the association between seminal plasma arylsulfatase A, arylsulfatase B and alkaline proteinase enzyme activities and semen parameters in different Iraqi male infertile patients. PATIENTS AND METHODS: Sixty patients with male infertility were included in this …

Spectroscopic Studies Of The Purified Testosterone Receptors In Human Benign And Malignant Prostatic Tumors, Omar F. Abdul-Rasheed

Iraqi Postgraduate Medical Journal

ABSTRACT: OBJECTIVE: To study the human benign and malignant prostatic testosterone receptors spectroscopically in the UV region. MATERIALS AND METHODS: In this study, spectroscopic characterization in the UV region was carried out on purified testosterone receptors by determining the polarity and pH effects on receptor UV spectra. Spectrophotometric pH titration and the observation of the thermal stability of testosterone receptors were also included in the present study. RESULTS: The UV spectra of purified testosterone receptors separated from benign prostatic tumors. BI receptor has two peaks at 196nm and 256.4nm, BII purified receptor gives one peak at 195.5nm, MI purified receptor …

Evaluation Of The Cinical Use Of Silymarin In Knee Osteoarthritis: Application Of The Dual Inhibitory Concept Of Cyclooxygenase And 5-Lipoxygenase, Intesar Tariq Numan

Iraqi Postgraduate Medical Journal

ABSTRACT: BACKGROUND: Many compounds from natural sources, including silymarin, proved to have effective inhibitory effects on cyclooxygenase (COX) and 5-lipoxygenase (5-LO) in vitro qnd experimental animals. The exellent pharmacological pre-clinical profile of these compounds indicates a broad range anti-inflammatory effectiveness devoid of the most troublesome side effects, which have at least impart impaired the clinical use of the classical COX inhibitors, including the newer selective COX-2 inhibitors. OBJECTIVES: This project designed to evaluate the clinical utility of silymarin, as a dual inhibitor of COX and 5-LO, as a single agent or in combination with non-steroidal anti-inflammatory drugs (NSAIDs) of both …

Impacts Of Climate Warming And Permafrost Thaw On The Riverine Transport Of Nitrogen And Phosphorus To The Kara Sea, Karen E. Frey, James W. Mcclelland, Robert M. Holmes, Laurence G. Smith

Geography

Measurements of nitrogen and phosphorus (N and P) concentrations from previously unstudied streams and rivers throughout west Siberia suggest that climate warming and/or associated permafrost thaw will likely amplify the transport of N and P to the Kara Sea and adjacent Arctic Ocean. We present concentrations of dissolved organic nitrogen (DON), ammonium (NH4-N), nitrate (NO3-N), total dissolved nitrogen (TDN), and total dissolved phosphorus (TDP) from 96 streams and rivers within the Ob'-Iriysh, Nadym, and Pur river drainage basins. The sampled sites span ∼106 km2, a large climatic gradient (∼55°N-68°N), and include 41 cold, permafrost-influenced and 55 warm, permafrost-free watersheds. Concentrations …

Health-Related Quality Of Life Of Patients Following Selected Types Of Lumbar Spinal Surgery: A Pilot Study, Karen L. Saban, Sue M. Penckofer, Ida Androwich, Fred B. Bryant

Psychology: Faculty Publications and Other Works

Background

Over 500,000 spinal surgeries are performed annually in the United States. Although pain relief and improved health-related quality of life (HRQOL) are expectations following lumbar spinal surgery, there is limited research regarding this experience from the individual's perspective. In addition, no studies have examined the HRQOL of persons who have had this surgery using a comprehensive approach. The intent of this study was to address this deficiency by an assessment of both the individual and environmental factors that impact perceived HRQOL using the Wilson and Cleary Model for Health-Related Quality of Life in persons who have undergone lumbar spinal …

Skeletal Manifestations And Role Of Dexa Study In 32 Patients With Multiple Myeloma, Mahmood Kh. Yasseen

Iraqi Postgraduate Medical Journal

ABSTRACT: AIM OF THE STUDY : To discuss skeletal manifestation of patients with multiple myeloma &the role of double energy X-ray photometry study in the management of those patients . PATIENTS & METHODS: During period from the 1st of April 2004 to 1st of January 2005 we collected 32 patients who fulfilled the criteria of diagnosis of multiple myeloma. .All our patients have detailed history & physical examination including: Age, Sex, Bone pain, pathological fracture, Localized tenderness & Bone swelling RESULTS: Pathological fracture found in (14) (43.75%), (10) were males (50%) of total males & (4) were females (33.3%) of …

Genotyping Of Human Papilloma Virus Infections And Phenotyping Of Tumor Infiltrating Lymphocytes In Iraqi Patients With Uterine Cervical Neoplasia, Majid Mohammed Mahmmod Al-Jewari

Iraqi Postgraduate Medical Journal

ABSTRACT: BACKGROUND: Among most basic and clinical investigations for detection and genotyping HPV, only In Situ Hybridization (ISH) is effective in studing the relation of HPV genome to that histopathological entity. Tumor Infiltrating Lymphocytes (TILs) represent the local cellular immune response against both cervical cancer and the associated HPV. OBJECTIVE: This study is aimed to investigate ISH in detection and genotyping of HPV and immunohistochemical (IHC) study in phenotyping of TILs in Iraqi women with different grades of cervical neoplasia. MATERIALS AND METHODS: This retrospective research included a total number of 129 cervical tissue blocks , 64 with invasive and …

Mirsky Holiday Lectures On Science 2007, The Rockefeller University

Posters

48th Annual Alfred E. Mirsky Holiday Lecture on Science for high school students Five Great Ideas of Biology delivered by Paul Nurse

Science Plan For Potential 2008 Experimental High Flow At Glen Canyon Dam, Grand Canyon Monitoring And Research Center

All U.S. Government Documents (Utah Regional Depository)

No abstract provided.

Acetylation In Nuclear Receptor Signaling And The Role Of Sirtuins, Chenguang Wang, Michael J. Powell, Vladimir M. Popov, Richard G. Pestell

Department of Cancer Biology Faculty Papers

It has been known since the early 1970s that nuclear receptor complexes bind DNA in association with co-regulatory proteins. Characterization of these nuclear receptor coregulators has revealed diverse enzymatic activities which temporally and spatially coordinate nuclear receptor activity within the context of local chromatin in response to diverse hormone signals. Chromatin modifying proteins, which dictate the higher order chromatin structure in which DNA is packaged, in turn orchestrate orderly recruitment of nuclear receptor complexes. Modifications of histones include acetylation, methylation, phosphorylation, ubiquitylation, sumoylation, ADP ribosylation, deimination and proline isomerization (1). At this time, we understand how a subset of these …

The Murray Ledger And Times, December 26, 2007, The Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

Role Of Penicillin Binding Proteins And Amidases In Daughter Cell Separation In Escherichia Coli, Richa Priyadarshini

Theses and Dissertations

In the final stages of the bacterial growth cycle, daughter cells must be released from one another by cleaving the shared peptidoglycan cell wall that separates them. Although enzymes capable of cleaving bonds in the murein sacculus are ubiquitous among the bacteria, the physiological roles of only a few of these enzymes are clear. The peptidoglycan-specific amidases play an important role in cleaving the septum to release daughter cells after cell division in Escherichia coli. E. coli has three amidases dedicated to this task: AmiA, AmiB and AmiC. These enzymes remove side chains from the peptidoglycan by hydrolyzing the bond …

Professional Development And Participation In The Tri-City Middle Level Institute, Linda Davis

Theses and Dissertations

The purpose of the study was to gain educators' perspectives of the value of a professional development program designed for practicing middle school teachers, many who had not been prepared for teaching in the middle school. The intent was to determine if participation in the Tri-City Middle Level Institute contributed to educators' professional growth by providing the philosophical understanding, knowledge base, and instructional strategies required to fully implement middle level concepts. Further, this study sought to establish if the design of the professional development, which employed a train-the-trainer model with collegial study groups, resulted in more teacher engagement and a …

The Use Of Information Books In The Preschool Classroom: Possibilities For Nurturing The Young Scientific Mind, Pamela A. Langlie

Theses and Dissertations

The use of information books in the preschool classroom, and the potential of the books and the learning activities associated with the books for promoting science among young children are explored. The research was first conducted with four children at a university children's center, and then replicated in a whole class setting at a college child development lab school in another state. Using qualitative procedures the study produced several grounded theories which led to the assertion that preschoolers, independently of their teachers, select information books according to their developmental interests, and use the books for exploring scientific concepts, and to …

Student Develops Simple Solution For Tedious Coupon Clipping, Emily Eskew

University of Mississippi News

OXFORD, Miss. - The tedious task of clipping and organizing coupons may soon be simplified thanks to an invention by a University of Mississippi student. Sophomore pre-med biology major Karah LaMon Evans, a Hickory native, has programmed software that stores coupon bar codes on a chip in the form of a convenient key chain device.

Analysis Of Host Responses Against The Plague, Deanna O'Bryant

Theses and Dissertations

Yersinia pestis, the causative agent of plague, is endemic to most of the world. Y. pestis' potential threat as a biological warfare agent has drawn increased attention to pathogenesis and vaccine research for the plague. A number of characteristics related both to the host response to, and bacterial pathogenesis of, Y. pestis were examined. To investigate the potential role of MHC Class II antigen presentation during the plague, HLA-DQ8αβ transgenic mice were infected with Y. pestis. DQ8 mice demonstrated a greatly enhanced age-dependent resistance to Y. pestis infection with females more resistant than males, mimicking gender differences in human plague, …

Imaging Thermal Stratigraphy In Freshwater Lakes Using Georadar, John H. Bradford, Cody R. Johnson, Troy Brosten, James P. Mcnamara, Michael N. Gooseff

CGISS Publications and Presentations

Thermal stratification exerts significant control over biogeochemical processing in freshwater lakes. Thus, the temporal and spatial distribution of the thermal structure is an important component in understanding lake ecosystems. We present the first reported observations of lake thermal stratification from surface based georadar measurements acquired over two small freshwater lakes. This method is very useful because it can provide rapid acquisition of 2D or 3D lotic stratification.

Use Of Parthenolide Derivatives As Antileukemic And Cytotoxic Agents, Peter A. Crooks, Craig T. Jordan, Xiaochen Wei

Pharmaceutical Sciences Faculty Patents

Compounds of the formula having anti-tumor activity, wherein R₁ and R₂ are as described herein

Ketahanan Hidup Setahun Pasien Stroke Di Rs Cipto Mangunkusumo Jakarta, Sri Mulyani

Kesmas

Di Indonesia, penyebab utama kematian di rumah sakit adalah stroke. Penelitian ini bertujuan untuk mengetahui ketahanan hidup 1 tahun pasien stroke yang dirawat di RS Cipto Mangunkusumo Jakarta tahun 2003 dan faktor yang mempengaruhinya. Rancangan penelitian ini adalah kohort retrospektif. Sampelnya adalah total populasi, yaitu 275 pasien yang didiagnosa mengalami serangan stroke pertama dan dirawat di RS Cipto Mangunkusumo Jakarta, yang masuk tanggal 1 Januari sampai 31 Desember 2003. Hasil penelitian menunjukkan bahwa probabilitas ketahanan hidup pasien stroke berbeda beda, tergantung pada tipe stroke, ruang rawat, dan penyakit jantung. Masing-masing probabilitas ketahanan hidup setahun pasien stroke adalah sebagai berikut: 63,7% …

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