Digital Commons Network^™

Factors Associated With Neurodevelopment For Children With Single Ventricle Lesions., Caren S. Goldberg, Minmin Lu, Lynn A. Sleeper, William T. Mahle, J William Gaynor, Ismee A. Williams, Kathleen A. Mussatto, Richard G. Ohye, Eric M. Graham, Deborah U. Frank, Jeffrey P. Jacobs, Catherine Krawczeski, Linda Lambert, Alan Lewis, Victoria L. Pemberton, Renee Sananes, Erica Sood, Stephanie B. Wechsler, David C. Bellinger, Jane W. Newburger, Pediatric Heart Network Investigators, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVE: To measure neurodevelopment at 3 years of age in children with single right-ventricle anomalies and to assess its relationship to Norwood shunt type, neurodevelopment at 14 months of age, and patient and medical factors.

STUDY DESIGN: All subjects in the Single Ventricle Reconstruction Trial who were alive without cardiac transplant were eligible for inclusion. The Ages and Stages Questionnaire (ASQ, n = 203) and other measures of behavior and quality of life were completed at age 3 years. Medical history, including measures of growth, feeding, and complications, was assessed through annual review of the records and phone interviews. The …

The Patient Burden Of Screening Mammography Recall., Matthew Alcusky, Liane Philpotts, Machaon Bonafede, Janice L. Clarke, Alexandria Skoufalos

College of Population Health Faculty Papers

OBJECTIVE: The aim of this article is to evaluate the burden of direct and indirect costs borne by recalled patients after a false positive screening mammogram.

METHODS: Women aged 40-75 years undergoing screening mammography were identified from a U.S. commercial claims database. Women were required to have 12 months pre- and 6 months post-index enrollment to identify utilization and exclude patients with subsequent cancer diagnoses. Recall was defined as the use of diagnostic mammography or breast ultrasound during 6 months post-index. Descriptive statistics were presented for recalled and non-recalled patients; differences were compared using the chi square test. Out-of-pocket costs …

Fructose-2,6-Bisphosphate Synthesis By 6-Phosphofructo-2-Kinase/Fructose-2,6-Bisphosphatase 4 (Pfkfb4) Is Required For The Glycolytic Response To Hypoxia And Tumor Growth, Jason Chesney, Jennifer Clark, Alden C. Klarer, Yoannis Imbert-Fernandez, Andrew N. Lane, Sucheta Telang

Markey Cancer Center Faculty Publications

Fructose-2,6-bisphosphate (F2,6BP) is a shunt product of glycolysis that allosterically activates 6-phosphofructo-1-kinase (PFK-1) resulting in increased glucose uptake and glycolytic flux to lactate. The F2,6BP concentration is dictated by four bifunctional 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatases (PFKFB1-4) with distinct kinase:phosphatase activities. PFKFB4 is over-expressed in human cancers, induced by hypoxia and required for survival and growth of several cancer cell lines. Although PFKFB4 appears to be a rational target for anti-neoplastic drug development, it is not clear whether its kinase or phosphatase activity is required for cancer cell survival. In this study, we demonstrate that recombinant human PFKFB4 kinase activity is 4.3-fold greater than …

Sexy But Not Sexual: An Examination Of The Sexual Narratives Of African American Adolescent Females, April Timmons

College of Science and Health Theses and Dissertations

Much of the research on sexuality during adolescence has focused on the potential negative sequelae of adolescent sexual behavior such as STI acquisition or teenage pregnancy. Researchers have begun to advocate for examining adolescent sexuality as a normative aspect of adolescent development. One aspect of this examination would be to form a more complete understanding of how adolescents develop their sexual identity – their conceptualization of themselves as a sexual being. Erickson’s (1968) identity development theory asserts that identity is developed internally and shaped by the social environment.

Development of a healthy sexual identity may be particularly difficult for African …

Theta And High-Frequency Activity Mark Spontaneous Recall Of Episodic Memories., John F Burke, Ashwini D Sharan, Michael R Sperling, Ashwin G Ramayya, James J. Evans, M Karl Healey, Erin N Beck, Kathryn A Davis, Timothy H Lucas, Michael J Kahana

Department of Neurology Faculty Papers

Humans possess the remarkable ability to search their memory, allowing specific past episodes to be re-experienced spontaneously. Here, we administered a free recall test to 114 neurosurgical patients and used intracranial theta and high-frequency activity (HFA) to identify the spatiotemporal pattern of neural activity underlying spontaneous episodic retrieval. We found that retrieval evolved in three electrophysiological stages composed of: (1) early theta oscillations in the right temporal cortex, (2) increased HFA in the left hemisphere including the medial temporal lobe (MTL), left inferior frontal gyrus, as well as the ventrolateral temporal cortex, and (3) motor/language activation during vocalization of the …

Motoric Cognitive Risk Syndrome: Multicountry Prevalence And Dementia Risk, Joe Verghese, Cedric Annweiler, Emmeline Ayers, Nir Barzilai, Olivier Beauchet, David A Bennett, Stephanie A Bridenbaugh, Aron S Buchman, Michele L Callisaya, Richard Camicioli, Benjamin Capistrant, Somnath Chatterji, Anne-Marie De Cock, Luigi Ferrucci, Nir Giladi, Jack M Guralnik, Jeffrey M Hausdorff, Roee Holtzer, Ki Woong Kim, Paul Kowal, Reto W Kressig, Jae-Young Lim, Susan Lord, Kenichi Meguro, Manuel Montero-Odasso, Susan W. Hunter, Mohan L Noone, Lynn Rochester, Velandai Srikanth, Cuiling Wang

Physical Therapy Publications

OBJECTIVES: Our objective is to report prevalence of motoric cognitive risk syndrome (MCR), a newly described predementia syndrome characterized by slow gait and cognitive complaints, in multiple countries, and its association with dementia risk.

METHODS: Pooled MCR prevalence analysis of individual data from 26,802 adults without dementia and disability aged 60 years and older from 22 cohorts from 17 countries. We also examined risk of incident cognitive impairment (Mini-Mental State Examination decline ≥4 points) and dementia associated with MCR in 4,812 individuals without dementia with baseline Mini-Mental State Examination scores ≥25 from 4 prospective cohort studies using Cox models adjusted …

Placental Fkbp5 Genetic And Epigenetic Variation Is Associated With Infant Neurobehavioral Outcomes In The Richs Cohort, Alison G. Paquette, Barry M. Lester, Devin C. Koestler, Corina Lesseur, David A. Armstrong, Carmen J. Marsit

Dartmouth Scholarship

Adverse maternal environments can lead to increased fetal exposure to maternal cortisol, which can cause infant neurobehavioral deficits. The placenta regulates fetal cortisol exposure and response, and placental DNA methylation can influence this function. FK506 binding protein (FKBP5) is a negative regulator of cortisol response, FKBP5 methylation has been linked to brain morphology and mental disorder risk, and genetic variation of FKBP5 was associated with post-traumatic stress disorder in adults. We hypothesized that placental FKBP5 methylation and genetic variation contribute to gene expression control, and are associated with infant neurodevelopmental outcomes assessed using the Neonatal Intensive Care Unit (NICU) Network …

The Impact Of Waist Circumference On Function And Physical Activity In Older Adults: Longitudinal Observational Data From The Osteoarthritis Initiative, John A. Batsis, Alicia J. Zbehlik, Laura K. Barre, Todd A. Mackenzie, Stephen J. Bartels

Dartmouth Scholarship

Background: We previously demonstrated that BMI is associated with functional decline and reduced quality of life. While BMI in older adults is fraught with challenges, waist circumference (WC) is a marker of visceral adiposity that can also predict mortality. However, its association with function and quality of life in older adults is not well understood and hence we sought to examine the impact of WC on six-year outcomes.

Methods: We identified adults aged ≥60 years from the longitudinal Osteoarthritis Initiative and stratified the cohort into quartiles based on WC. Our primary outcome measures of function at six year follow-up included: …

Diagnosis-Specific Readmission Risk Prediction Using Electronic Health Data: A Retrospective Cohort Study, Courtney Hebert, Chaitanya Shivade, Randi Foraker, Jared Wasserman, Caryn Roth, Hagop Mekhjan, Stanley Lemeshow, Peter Embi

Dartmouth Scholarship

Background: Readmissions after hospital discharge are a common occurrence and are costly for both hospitals and patients. Previous attempts to create universal risk prediction models for readmission have not met with success. In this study we leveraged a comprehensive electronic health record to create readmission-risk models that were institution- and patient- specific in an attempt to improve our ability to predict readmission. Methods: This is a retrospective cohort study performed at a large midwestern tertiary care medical center. All patients with a primary discharge diagnosis of congestive heart failure, acute myocardial infarction or pneumonia over a two-year time period were …

Obesity And Mortality: Are The Risks Declining? Evidence From Multiple Prospective Studies In The United States., Tapan S. Mehta, Kevin R. Fontaine, Scott W. Keith, Sripal S. Bangalore, Gustavo De Los Campos, Alfred Bartolucci, Nicholas M. Pajewski, David B. Allison

Department of Pharmacology and Experimental Therapeutics Faculty Papers

We evaluated whether the obesity-associated years of life lost (YLL) have decreased over calendar time. We implemented a meta-analysis including only studies with two or more serial body mass index (BMI) assessments at different calendar years. For each BMI category (normal weight: BMI 18.5 to <25 >[reference]; overweight: BMI 25 to60, YLL for grade 1 obesity decreased by 1.02 years (P < 0.001) and increased by 0.63 years for grade 2-3 obesity (P = 0.63). Among women aged ≤60, YLL for grade 1 obesity decreased by 4.21 years (P < 0.001) and by 4.97 years (P < 0.001) for grade 2-3 obesity. In women aged >60, YLL for grade 1 obesity decreased by 3.98 years (P < 0.001) and by 2.64 years (P = 0.001) for grade 2-3 obesity. Grade 1 obesity's association with decreased longevity has reduced for older Caucasian men. For Caucasian women, there is evidence of a decline in the obesity YLL association across all ages.

Sleep Environment Risks For Younger And Older Infants., Jeffrey D. Colvin, Vicki Collie-Akers, Christy Schunn, Rachel Y. Moon

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVE: Sudden infant death syndrome and other sleep-related causes of infant mortality have several known risk factors. Less is known about the association of those risk factors at different times during infancy. Our objective was to determine any associations between risk factors for sleep-related deaths at different ages.

METHODS: A cross-sectional study of sleep-related infant deaths from 24 states during 2004-2012 contained in the National Center for the Review and Prevention of Child Deaths Case Reporting System, a database of death reports from state child death review teams. The main exposure was age, divided into younger (0-3 months) and older …

Nontyphoidal Cardiac Salmonellosis: Two Case Reports And A Review Of The Literature, Daniel Ortiz, Eric M Siegal, Christopher Kramer, Bijoy K Khandheria, Ernesto Brauer

The Texas Heart Institute Journal

Nontyphoidal Salmonella, especially Salmonella enterica, is a rare cause of endocarditis and pericarditis that carries a high mortality rate. Proposed predisposing conditions include immunodeficiency states, congenital heart defects, and cardiac valve diseases. We present 2 cases of cardiovascular salmonellosis. The first case is that of a 73-year-old woman with mechanical mitral and bioprosthetic aortic valves who died from sequelae of nontyphoidal Salmonella mitral valve vegetation, aortic valve abscess, and sepsis. The second case is that of a 62-year-old man with a recent systemic lupus erythematosus exacerbation treated with oral steroids, who presented with obstructive features of tamponade and sepsis secondary …

Examining The Factors Influencing Female African American Doctoral Students To Select Higher Education Leadership As A Career, Rosalynn Martin

Electronic Theses and Dissertations Archive

The objective of this study was to identify reasons why African American women who are enrolled in higher education administration doctoral programs become senior higher education leaders, i.e., college presidents, chief academic officers, and vice-presidents. This study applied the Social Cognitive Career Theory (SCCT) to examine these reasons. The research population included female African American doctoral students enrolled in higher education administration programs from 12 institutions located in the southern United States. Using multistage sampling, a sample of 29 was established. Data were collected using the SCCT survey questionnaire which consisted of five parts: self-efficacy, outcome expectations, vocational interests, barriers, …

Visual Speech Perception In Foveal And Extrafoveal Vision: Further Implications For Divisions In Hemispheric Projections, Timothy R. Jordan, Mercedes Sheen, Lily Abedipour, Kevin B. Paterson

All Works

When observing a talking face, it has often been argued that visual speech to the left and right of fixation may produce differences in performance due to divided projections to the two cerebral hemispheres. However, while it seems likely that such a division in hemispheric projections exists for areas away from fixation, the nature and existence of a functional division in visual speech perception at the foveal midline remains to be determined. We investigated this issue by presenting visual speech in matched hemiface displays to the left and right of a central fixation point, either exactly abutting the foveal midline …

Female School Dropout: Gender Differences In Students’ School Retention, Edona Begu

Theses

The aim of this project is to find out whether there is a gender difference in students school retention or in the dropout rates in Kosovo, because there is a prevailing perception that the female students dropout more, or that the female school retention is lower compared to male. Moreover, many international organizations and nongovernmental institutions such as GIZ, WB, UNICEF and UNDP have been and are currently involved in treating the problem of female school dropout and gender disparities in education,1 Therefore, strengthening even more the widespread belief that there are gender differences in education in Kosovo, more exactly …

Autism Assessment Scale For Children (Aasc): The Development Of A Dsm-V Aiigned Questionnaire To Screen School-Aged Children For High Functioning Autism, Christine Hebert

Teaching & Learning Theses & Dissertations

The purpose of this dissertation is to analyze the latent factor structure underlying the Ellis Functional Assessment (EFA) for children with high-functioning autism (HFA), to compare the latent factor structures for under-identified subgroups of children (older children, gifted children, female children), and to design a pre-screening assessment for HFA based on those results. The scope of the study is limited to children who have been identified as having HFA and whose parents completed the EFA while patients of a mid-Atlantic clinical practice specializing in autism spectrum disorders. The methodology uses preliminary factor analysis and confirmatory factor analysis to both analyze …

Safety Of Hexaminolevulinate For Blue Light Cystoscopy In Bladder Cancer. A Combined Analysis Of The Trials Used For Registration And Postmarketing Data., J Alfred Witjes, Leonard G. Gomella, Arnulf Stenzl, Sam S. Chang, Dirk Zaak, H Barton Grossman

Department of Urology Faculty Papers

OBJECTIVE: To detail and put into perspective, safety of hexaminolevulinate blue light cystoscopy (HAL-BLC), including repeated use, based on combined data of controlled trials used for registration of HAL and postmarketing experience.

METHODS: Safety data of 2 randomized comparative studies (group 1) and 4 within patient control studies (group 2) were combined. Postmarketing data from >200,000 patients were analyzed.

RESULTS: In group 1, 533 patients were examined with HAL-BLC and 499 with white light (WL) cystoscopy. In group 2, 791 patients were examined with both WL and HAL-BLC. Between 73% and 93% of these patients had concomitant diseases. Between 41% …

Skpa Restrains Synaptic Terminal Growth During Development And Promotes Axonal Degeneration Following Injury, E. J. Brace, Chunlai Wu, Vera Valakh, Aaron Diantonio

Open Access Publications

The Wallenda (Wnd)/dual leucine zipper kinase (DLK)-Jnk pathway is an evolutionarily conserved MAPK signaling pathway that functions during neuronal development and following axonal injury. Improper pathway activation causes defects in axonal guidance and synaptic growth, whereas loss-of-function mutations in pathway components impairs axonal regeneration and degeneration after injury. Regulation of this pathway is in part through the E3 ubiquitin ligase Highwire (Hiw), which targets Wnd/DLK for degradation to limit MAPK signaling. To explore mechanisms controlling Wnd/DLK signaling, we performed a large-scale genetic screen in Drosophila to identify negative regulators of the pathway. Here we describe the identification and characterization of …

Resistant Starch Type 4-Enriched Diet Lowered Blood Cholesterols And Improved Body Composition In A Double Blind Controlled Cross-Over Intervention, Sailendra N Nichenametla, Lee A. Weidauer, Howard Wey, Tianna Beare, Bonny Specker, Moul Dey

Health and Nutritional Sciences Faculty Publications

A metabolic health crisis is evident as cardiovascular diseases (CVD) remain the leading cause of mortality in the United States. Effects of resistant starch type 4 (RS4), a prebiotic fiber, in comprehensive management of metabolic syndrome (MetS) remain unknown. This study examined the effects of a blinded exchange of RS4-enriched flour (30% v/v) with regular/control flour (CF) diet on multiple MetS comorbidities. In a double blind (participants-investigators), placebo-controlled, cluster cross-over intervention (n = 86, age≥18, 2-12 week interventions, 2-week washout) in the United States, individuals were classified as having MetS (With-MetS) or not (No-MetS) following International Diabetes Federation (IDF)-criteria. RS4 …

Spontaneous Coronary Artery Dissection (Scad): New Insights Into This Not-So-Rare Condition, Sharonne N Hayes

The Texas Heart Institute Journal

No abstract provided.

Exertional Dyspnea As A Symptom Of Infrarenal Aortic Occlusive Disease, Stacey L Schott, Fernanda Porto Carreiro, James R Harkness, Mahmoud B Malas, Stephen M Sozio, Sammy Zakaria

The Texas Heart Institute Journal

Advanced atherosclerosis of the aorta can cause severe ischemia in the kidneys, refractory hypertension, and claudication. However, no previous reports have clearly associated infrarenal aortic stenosis with shortness of breath. A 77-year-old woman with hypertension and hyperlipidemia presented with exertional dyspnea. Despite extensive testing and observation, no apparent cause for this patient's dyspnea was found. Images revealed severe infrarenal aortic stenosis. After the patient underwent stenting of the aortic occlusion, she had immediate symptomatic improvement and complete resolution of her dyspnea within one month. Twelve months after vascular intervention, the patient remained asymptomatic. In view of the distinct and lasting …

Outpatient Management Of Heart Failure In The United States, 2006-2008, Kailash Mosalpuria, Sunil K Agarwal, Sirin Yaemsiri, Bredy Pierre-Louis, Samir Saba, Rene Alvarez, Stuart D Russell

The Texas Heart Institute Journal

Better outpatient management of heart failure might improve outcomes and reduce the number of rehospitalizations. This study describes recent outpatient heart-failure management in the United States.

We analyzed data from the National Ambulatory Medical Care Survey of 2006–2008, a multistage random sampling of non-Federal physician offices and hospital outpatient departments.

Annually, 1.7% of all outpatient visits were for heart failure (51% females and 77% non-Hispanic whites; mean age, 73 ± 0.5 yr). Typical comorbidities were hypertension (62%), hyperlipidemia (36%), diabetes mellitus (35%), and ischemic heart disease (29%). Body weight and blood pressure were recorded in about 80% of visits, and …

Self-Reported Head Injury And Risk Of Late-Life Impairment And Ad Pathology In An Ad Center Cohort, Erin L. Abner, Peter T. Nelson, Frederick A. Schmitt, Steven R. Browning, David W. Fardo, Lijie Wan, Gregory A. Jicha, Gregory E. Cooper, Charles D. Smith, Allison M. Caban-Holt, Linda J. Van Eldik, Richard J. Kryscio

Sanders-Brown Center on Aging Faculty Publications

Aims: To evaluate the relationship between self-reported head injury and cognitive impairment, dementia, mortality, and Alzheimer's disease (AD)-type pathological changes. Methods: Clinical and neuropathological data from participants enrolled in a longitudinal study of aging and cognition (n = 649) were analyzed to assess the chronic effects of self-reported head injury. Results: The effect of self-reported head injury on the clinical state depended on the age at assessment: for a 1-year increase in age, the OR for the transition to clinical mild cognitive impairment (MCI) at the next visit for participants with a history of head injury was 1.21 and 1.34 …

Functional Health Status In Children And Adolescents After Fontan: Comparison Of Generic And Disease-Specific Assessments., Brian W. Mccrindle, Victor Zak, Victoria L. Pemberton, Linda M. Lambert, Victoria L. Vetter, Wyman W. Lai, Karen Uzark, Renee Margossian, Andrew M. Atz, Amanda Cook, Jane W. Newburger, Pediatric Heart Network Investigators, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

PURPOSE: The aim of this study was to compare associations between generic versus disease-specific functional health status assessments and patient and clinical characteristics for patients with severe congenital heart disease.

METHODS: This was a cross-sectional observational study involving 325 single ventricle patients, aged 10-18 years, after Fontan procedure. Enrolled patients underwent a medical history review, laboratory testing, and assessment of the functional health status by completion of the generic Child Report Child Health Questionnaire and the disease-specific Congenital Heart Adolescent and Teenage questionnaire. Correlated conceptually equivalent domains from both questionnaires were identified and their associations with patient and clinical variables …

Self-Rated Health Predicts Healthcare Utilization In Heart Failure, Alanna M. Chamberlain, Sheila M. Manemann, Shannon M. Dunlay, John A. Spertus, Debra K. Moser, Cecilia Berardi, Robert L. Kane, Susan A. Weston, Margaret M. Redfield, Véronique L. Roger

Nursing Faculty Publications

BACKGROUND: Heart failure (HF) patients experience impaired functional status, diminished quality of life, high utilization of healthcare resources, and poor survival. Yet, the identification of patient-centered factors that influence prognosis is lacking.

METHODS AND RESULTS: We determined the association of 2 measures of self-rated health with healthcare utilization and skilled nursing facility (SNF) admission in a community cohort of 417 HF patients prospectively enrolled between October 2007 and December 2010 from Olmsted County, MN. Patients completed a 12-item Short Form Health Survey (SF-12). Low self-reported physical functioning was defined as a score ≤ 25 on the SF-12 physical component. The …

The Effect Of Maternal Separation And Postnatal Oxytocin Administration On Social Recognition In Adolescent Female Mice, Nathaniel Richard Thomas

Dissertations - ALL

A vast body of literature indicates that exposing rodents to maternal separation during infancy results in long - term developmental changes in physiological, behavioral, and psychological domains. Because several previous studies have indicated that maternal separation may be detrimental to the processing and discrimination of social cues, the primary aim of this dissertation was to determine whether separating female infant mouse pups from their mother, but not siblings, for 3 hrs daily, during the first two weeks of life, influences social recognition during adolescence (Experiment 1). This dissertation also sought to evaluate whether postnatal administration of the oxytocin would influence …

Overexpression Of The Astrocyte Glutamate Transporter Glt1 Exacerbates Phrenic Motor Neuron Degeneration, Diaphragm Compromise, And Forelimb Motor Dysfunction Following Cervical Contusion Spinal Cord Injury., Ke Li, Charles Nicaise, Daniel Sannie, Tamara J Hala, Elham Javed, Jessica L Parker, Rajarshi Putatunda, Kathleen A Regan, Valérie Suain, Jean-Pierre Brion, Fred Rhoderick, Megan C Wright, David J Poulsen, Angelo C Lepore

Farber Institute for Neuroscience Faculty Papers

A major portion of spinal cord injury (SCI) cases affect midcervical levels, the location of the phrenic motor neuron (PhMN) pool that innervates the diaphragm. While initial trauma is uncontrollable, a valuable opportunity exists in the hours to days following SCI for preventing PhMN loss and consequent respiratory dysfunction that occurs during secondary degeneration. One of the primary causes of secondary injury is excitotoxic cell death due to dysregulation of extracellular glutamate homeostasis. GLT1, mainly expressed by astrocytes, is responsible for the vast majority of functional uptake of extracellular glutamate in the CNS, particularly in spinal cord. We found that, …

Manage At Work: A Randomized, Controlled Trial Of A Self-Management Group Intervention To Overcome Workplace Challenges Associated With Chronic Physical Health Conditions, William S. Shaw, Elyssa Besen, Glenn Pransky, Cécile R. L. Boot, Michael K. Nicholas, Robert K. Mclellan, Torill H. Tveito

Dartmouth Scholarship

Background: The percentage of older and chronically ill workers is increasing rapidly in the US and in many other countries, but few interventions are available to help employees overcome the workplace challenges of chronic pain and other physical health conditions. While most workers are eligible for job accommodation and disability compensation benefits, other workplace strategies might improve individual-level coping and problem solving to prevent work disability. In this study, we hypothesize that an employer-sponsored group intervention program employing self-management principles may improve worker engagement and reduce functional limitation associated with chronic disorders.

Methods: In a randomized controlled trial (RCT), workers …

Affecting Attitudes Towards Science, High School African American Students, Charles Brett Anderton

Theses and Dissertations

Racial minorities, women, and people with disabilities are underrepresented in the fields of Science, Technology, Engineering, and Mathematics (STEM). Attitude towards science has been shown to be a reliable predictor of science achievement. Project-Based Learning (PBL) has been shown to improve attitude towards a topic. The sample selected consisted of 113 African American high school students (68% to 32% female to male ratio) from Alabama, Louisiana, and Mississippi. A quasi-experimental research design which consisted of pre and post intervention measures of participants’ attitudes towards science was utilized in this study. Overall, Phase 1, a week-long residential camp, saw greater increases …

On Individual, Sex And Age Differentiation Of Indian House Crow (Corvus Splendens) Call: A Preliminary Study In Potohar, Pakistan, Waqas Hameed, Inayat Ullah, Safia Janjua, Fakhar -I- Abbas, Afsar Mian

Journal of Bioresource Management

Considering importance of acoustics studies in population biology, 500 calls of the Indian House Crow (Corvus splendens) were recorded in morning - mid-afternoon hours (January-February, 2009) from 23 sites of urban areas of Potahar (Punjab, Pakistan). Calls were recorded using Sony CFS 1030 S sound records (sampling rate = 48 KHz) and edited using Sound Analysis Pro (Version 1.02). software using FFT method rate 50%, data window 9.27 ms, advanced window 1.36 ms. Through editing of calls, we selected 60 (37 ♂♂, 17 ♀♀, 6 Juvenile ♂♂) good quality spectrograms for detailed analysis. Spectrograms were characterized by rapid frequency modulations …