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2011

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Programme De Formation Participative En Manutention Manuelle : Fondements Théoriques Et Approche Proposée, Denys Denis, Monique Lortie, Marie St-Vincent, Maud Gonella, André Plamondon, Alain Delisle, Jacques Tardif Jan 2011

Programme De Formation Participative En Manutention Manuelle : Fondements Théoriques Et Approche Proposée, Denys Denis, Monique Lortie, Marie St-Vincent, Maud Gonella, André Plamondon, Alain Delisle, Jacques Tardif

Rapports de recherche scientifique

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Les activités de manutention sont source de blessures musculo-squelettiques – particulièrement au dos – et ont fait l’objet de plusieurs études et d’efforts de prévention au fil des ans. Former les manutentionnaires est une avenue de prévention répandue. Une approche de formation dominante consiste à enseigner des consignes de base qui se matérialisent à travers des techniques standards que les manutentionnaires doivent appliquer en tout temps. Certaines études récentes remettent en question les effets de ces formations tandis que d’autres apportent un regard nouveau sur la réalité du travail de manutention. …


Travailleurs Exposés Aux Fluides De Coupe De Métaux (Fc) : Évaluation De L'Exposition Aux Bioaérosols Et Effets Sur La Santé Respiratoire Et Cutanée, Caroline Duchaine, Yvon Cormier, Yan Gilbert, Marc Veillette, Jacques Lavoie, Anne Mériaux, Christine Touzel, Denis Sasseville, Yves Poulin Jan 2011

Travailleurs Exposés Aux Fluides De Coupe De Métaux (Fc) : Évaluation De L'Exposition Aux Bioaérosols Et Effets Sur La Santé Respiratoire Et Cutanée, Caroline Duchaine, Yvon Cormier, Yan Gilbert, Marc Veillette, Jacques Lavoie, Anne Mériaux, Christine Touzel, Denis Sasseville, Yves Poulin

Rapports de recherche scientifique

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Certains problèmes respiratoires sont observés chez les machinistes travaillant avec des fluides de coupe solubles (FC). Ces problèmes pourraient être reliés aux aérosols contenant des microorganismes présents dans les systèmes de FC. Pour mieux comprendre les effets de ces aérosols sur la santé humaine, l’environnement de travail doit être caractérisé. Nous avons détaillé la flore microbienne des FC ainsi que celle de l’air, les brouillards d’huile, les poussières inhalables et les endotoxines de 44 sites d’usinage répartis dans 25 usines du Québec. La PCR quantitative a été utilisée afin de dénombrer …


Douleur, Dépression, Incapacité Et Résultats De La Réadaptation, Michael J.L. Sullivan, Maureen Simmonds, Ana Velly Jan 2011

Douleur, Dépression, Incapacité Et Résultats De La Réadaptation, Michael J.L. Sullivan, Maureen Simmonds, Ana Velly

Rapports de recherche scientifique

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Cette étude avait pour objectif principal d'évaluer le lien entre les symptômes de dépression et les résultats de la réadaptation chez des travailleurs ayant subi des lésions musculo-squelettiques. Plus de 200 personnes ont participé au début, au milieu et à la fin d'un programme de réadaptation, à des tests relatifs à la dépression, à l’intensité de la douleur, à la pensée catastrophique et à la crainte d’exécuter un mouvement. Ils ont aussi répondu à une entrevue 12 mois après la fin des traitements. Les résultats indiquent que la dépression agit négativement …


Pain, Depression, Disability And Rehabilitation Outcomes, Michael J.L. Sullivan, Maureen Simmonds, Ana Velly Jan 2011

Pain, Depression, Disability And Rehabilitation Outcomes, Michael J.L. Sullivan, Maureen Simmonds, Ana Velly

Rapports de recherche scientifique

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Cette étude avait pour objectif principal d'évaluer le lien entre les symptômes de dépression et les résultats de la réadaptation chez des travailleurs ayant subi des lésions musculo-squelettiques. Plus de 200 personnes ont participé au début, au milieu et à la fin d'un programme de réadaptation, à des tests relatifs à la dépression, à l’intensité de la douleur, à la pensée catastrophique et à la crainte d’exécuter un mouvement. Ils ont aussi répondu à une entrevue 12 mois après la fin des traitements. Les résultats indiquent que la dépression agit négativement …


Effet Des Substances Chimiques Sur L’Audition : Interactions Avec Le Bruit, Adolf Vyskocil, Tony Leroux, Ginette Truchon, François Lemay, France Gagnon, Martine Gendron, Amar Boudjerida, Naïma El-Majidi, Claude Viau Jan 2011

Effet Des Substances Chimiques Sur L’Audition : Interactions Avec Le Bruit, Adolf Vyskocil, Tony Leroux, Ginette Truchon, François Lemay, France Gagnon, Martine Gendron, Amar Boudjerida, Naïma El-Majidi, Claude Viau

Rapports de recherche scientifique

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Les auteurs ont examiné l’effet combiné du bruit et de l’exposition à des substances chimiques sur l’audition en utilisant des données humaines et animales de la littérature scientifique. Ils constatent qu’il n’existe qu’une cinquantaine d’études dans lesquelles l’exposition tant au bruit qu’aux substances chimiques est caractérisée avec suffisamment de précision et de fiabilité. De plus, les définitions données à une exposition au bruit « forte » ou « faible » varient d’une étude à l’autre. Il en résulte qu’il est très difficile de combiner l’ensemble des données pour en tirer des …


Une Approche Systématique D’Identification Des Déterminants De L’Incapacité Liés Au Travail Et À La Santé Psychologique Dans Un Secteur Ciblé, Marie-France Coutu, Iuliana Nastasia, Marie-José Durand, Marc Corbière, Patrick Loisel, Pierre Lemieux, Marie-Elise Labrecque, Sara Pettigrew Jan 2011

Une Approche Systématique D’Identification Des Déterminants De L’Incapacité Liés Au Travail Et À La Santé Psychologique Dans Un Secteur Ciblé, Marie-France Coutu, Iuliana Nastasia, Marie-José Durand, Marc Corbière, Patrick Loisel, Pierre Lemieux, Marie-Elise Labrecque, Sara Pettigrew

Rapports de recherche scientifique

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La difficulté à se maintenir au travail en raison d’un problème de santé psychologique constitue une préoccupation sociale grandissante. Les auteurs ont voulu développer une approche systématique pour identifier les déterminants de l’incapacité à maintenir une vie professionnelle active chez le travailleur ayant des difficultés psychologiques. Pour ce faire, ils ont élaboré et effectué une première validation de deux outils à l’intention des milieux de travail : un dispositif d’enquête permettant d’identifier les déterminants, la prévalence et la distribution de la détresse psychologique et du présentéisme et un outil ergonomique pour …


Experimental Analysis Of Tools Used For Estimating Risk Associated With Industrial Machines, Yuvin Chinniah, François Gauthier, Serge Lambert, Florence Moulet Jan 2011

Experimental Analysis Of Tools Used For Estimating Risk Associated With Industrial Machines, Yuvin Chinniah, François Gauthier, Serge Lambert, Florence Moulet

Rapports de recherche scientifique

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Dans cette étude, 31 outils qualitatifs servant à estimer le risque en lien avec les machines industrielles et conformes aux directives de l'ISO 14121-1:2007 ont été analysés i) en comparant leurs paramètres d'estimation du risque, et ii) en utilisant les différents outils pour estimer les risques inhérents à 20 situations dangereuses (scénarios de risque). L'étude visait à procéder à une comparaison théorique de la capacité des outils à estimer le risque et à déterminer la mesure dans laquelle ils estiment le risque de façon uniforme. Les niveaux de risque obtenus par …


Les Facteurs Reliés Aux Absences Prolongées Du Travail En Raison D’Un Trouble Mental Transitoire : Développement D’Un Outil De Mesure, Marie-José Durand, Marc Corbière, Catherine Briand, Marie-France Coutu, Louise St-Arnaud, Nicole Charpentier Jan 2011

Les Facteurs Reliés Aux Absences Prolongées Du Travail En Raison D’Un Trouble Mental Transitoire : Développement D’Un Outil De Mesure, Marie-José Durand, Marc Corbière, Catherine Briand, Marie-France Coutu, Louise St-Arnaud, Nicole Charpentier

Rapports de recherche scientifique

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Les problèmes de santé mentale sont en recrudescence dans les organisations. Jusqu’à maintenant, on connait des approches de traitement qui réduisent les symptômes de la maladie. Toutefois, il est clairement démontré que malgré l’amélioration du fonctionnement des personnes, celle-ci n’est pas associée nécessairement à un retour au travail. Ce constat suggère que l'incapacité au travail associée à un tel état de santé constitue un phénomène multifactoriel complexe. Or, peu d'études ont évalué spécifiquement les facteurs prédictifs et les obstacles de la reprise des activités professionnelles dans ces cas. Cette étude cible, …


Exploratory Study To Identify Workload Factors That Have An Impact On Health And Safety: A Case Study In The Service Sector, Pierre-Sébastien Fournier, Sylvie Montreuil, Jean-Pierre Brun, Caroline Bilodeau, Julie Villa Jan 2011

Exploratory Study To Identify Workload Factors That Have An Impact On Health And Safety: A Case Study In The Service Sector, Pierre-Sébastien Fournier, Sylvie Montreuil, Jean-Pierre Brun, Caroline Bilodeau, Julie Villa

Rapports de recherche scientifique

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Les nouvelles formes d’organisation du travail (innovations technologiques, nouvelles politiques de gestion des ressources humaines, formes innovantes d’organisation, etc.) pourraient avoir des conséquences négatives pour les individus (fatigue, stress chronique, troubles musculo-squelettiques…) et pour les établissements (absentéisme, roulement de personnel…). La documentation scientifique désigne la charge de travail comme dénominateur commun en l’occurrence, sauf que les évidences sur la conceptualisation de ce phénomène sont limitées et ne tiennent pas compte de sa complexité. Pour le définir et le caractériser, les chercheurs ont voulu déterminer les dimensions ainsi que la dynamique et …


The Occupational Therapy Handbook For Parents (Othp), Kristen Rosenbeck Jan 2011

The Occupational Therapy Handbook For Parents (Othp), Kristen Rosenbeck

Occupational Therapy Capstones

Children spend 60% of their day completing fine motor activities (Feder, 2007; Mackay, 2010). Therefore, it is essential that young children be exposed to a variety of fine motor activities in school and home settings to promote fine motor development. Often times parents are willing to help their children develop these skills, however, they do not feel they have the resources to do this.

The Occupational Therapy Handbook for Parents (OTHP) was designed by an occupational therapist to provide consistent parent education regarding children's fine motor skills. A literature review was completed to define typical fine motor development, best practices …


Psychosocial Assessment In Orthopedic Evaluations: A Clinical Tool For Occupational Therapists, Sara M. Sipple Jan 2011

Psychosocial Assessment In Orthopedic Evaluations: A Clinical Tool For Occupational Therapists, Sara M. Sipple

Occupational Therapy Capstones

"When 1 touch a human hand, 1 touch heaven. " - Malebranche

Holistic, occupation-based treatment in a hand therapy setting is associated with enhanced patient outcomes (Chan & Spencer, 2004), yet it is easy for occupational therapists working in hand and upper extremity orthopedic settings to become fixated on the pathology and anatomy of medical diagnoses and inadvertently ignore psychosocial and contextual influences on rehabilitation. Although there is research that identifies how physical disease may lead to psychosocial role changes, there is a paucity of literature that addresses how hand and upper extremity injuries affect these roles (Schier & Chan, …


Living With A Spinal Cord Injury: A Workshop For Parenting And Play, Ana Sobolik, Laura Gunderson Jan 2011

Living With A Spinal Cord Injury: A Workshop For Parenting And Play, Ana Sobolik, Laura Gunderson

Occupational Therapy Capstones

Individuals with newly acquired spinal cord injuries (SCI) may experience fears of inadequacy with their ability to be parents. This is a problem due to the fact that the average age of individuals who acquire SCIs is between 16 and 30, the prime child bearing years (Martin, Hamilton, Sutton, Ventura, Mathews, & Osterman, 2010; Mathews & Hamilton, 2009). There is a lack of literature to address these fears by supporting and developing parenting skills for individuals with SCIs. The purpose of this scholarly project is to address the fears of individuals with SCIs and their abilities with parenting occupations, as …


Promoting Fine Motor And Visual-Motor Skill Development In Preschool Age Children, Patty Soldner Jan 2011

Promoting Fine Motor And Visual-Motor Skill Development In Preschool Age Children, Patty Soldner

Occupational Therapy Capstones

Fine motor skills are important in childhood development (Beilei, Lui, Qu & vonHofsten, 2002; Rosenblum, Weiss & Parush, 2003 as cited in Jackman & Stagnitti, 2007). These skills become critical when a child reaches school age when the child is expected to perform fine motor tasks such as cutting, coloring, and writing as part of his or her daily routine. Research has shown that there is a high rate of fine motor difficulties in school-age children in the United States (Hammerschmidt & Sudsawad, 2004 as cited in Jackman & Stagnitti, 2007). Caregivers of preschool age children often seek the assistance …


Bariatric Surgery And The Impacts On Occupations: A Qualitative Study, Emily Schlosser, Annie Van Erem Jan 2011

Bariatric Surgery And The Impacts On Occupations: A Qualitative Study, Emily Schlosser, Annie Van Erem

Occupational Therapy Capstones

Purpose: The aim of this study was to explore the lived experiences of individuals who had undergone bariatric surgery and the impact weight loss has on occupations.

Methodology: A comprehensive literature review was conducted on the affects of obesity, bariatric surgery and the impacts on occupational performance. Based on the findings of the literature review, a qualitative research study using a phenomenological approach was completed. The Model of Human Occupation (MOHO) served as a guide in developing the interview questions and data analysis process. Four female participants who have undergone bariatric surgery were recruited using a purposive sampling method. The …


Comparative Study Of Long-And Short-Pulsed Electric Fields For Treating Melanoma In An In Vivo Mouse Model, Xinhua Chen, Xinmei Chen, Karl H. Schoenbach, Shusen Zheng, R. James Swanson Jan 2011

Comparative Study Of Long-And Short-Pulsed Electric Fields For Treating Melanoma In An In Vivo Mouse Model, Xinhua Chen, Xinmei Chen, Karl H. Schoenbach, Shusen Zheng, R. James Swanson

Bioelectrics Publications

A mouse melanoma model was set up with green fluorescent protein (GFP) expression in vivo. With the same energy, long- (1 ms) and short- (300 ns) pulsed electric fields were delivered to two melanomas injected into the same mouse. The tumor growth and green fluorescence were followed up to compare the different treatment efficacy of long and short pulses. After two days post treatment, short pulse-treated tumors showed a significantly lower tumor volume compared with long pulse-treated tumors (n=8, p


Elementary Teachers' Views Of Environmental Education, Rose M. Hotchkiss Jan 2011

Elementary Teachers' Views Of Environmental Education, Rose M. Hotchkiss

Teaching & Learning Theses & Dissertations

The purpose of this research is to examine teachers' views of environmental education (EE) at the elementary level. The study addresses teachers' attitudes toward the EE at the elementary school level and their self-efficacy in teaching EE.

The study's sample consisted of 201 randomly selected kindergarten through fifth grade United States public school teachers. The participants completed an on-line survey with eight percent of the respondents participating in follow up interviews. The questionnaire measured two constructs; Teachers Attitudes Toward EE and Teacher Efficacy in EE. Teachers Attitudes Toward EE had 3 subscales; Advocacy for EE, Stewardship in EE, …


Collective Efficacy And Intimate Partner Violence: Community Context, Catherine B. Cowling Jan 2011

Collective Efficacy And Intimate Partner Violence: Community Context, Catherine B. Cowling

Sociology & Criminal Justice Theses & Dissertations

Intimate partner violence is a very serious issue in the United States. In spite of improvements, there is still much work to be done. Policies focusing on formal controls such as arrest, orders of protection, and prosecution have questionable potential. However, collective efficacy and the examination of community context have much to offer the field of intimate partner violence. Collective efficacy, comprised of social cohesion, social capital, and informal social control, may be more effective in reducing intimate partner violence than use of traditional formal social controls alone. These community context variables may also be of great assistance in improving …


Design Of Multi Agent Based Crowd Injury Model, Emin Kugu Jan 2011

Design Of Multi Agent Based Crowd Injury Model, Emin Kugu

Electrical & Computer Engineering Theses & Dissertations

A major concern of many government agencies is to predict and control the behavior of crowds in different situations. Many times such gatherings are legal, legitimate, and peaceful. But there are times when they can turn violent, run out of control, result in material damages and even casualties. It then becomes the duty of governments to bring them under control using a variety of techniques, including non-lethal and lethal weapons, if necessary.

In order to aid decision makers on the course of action in crowd control, there are modeling and simulation tools that can provide guidelines by giving programmed rules …


Effects Of Lateral Ligament Sectioning On The Stability Of The Ankle And Subtalar Joint, Stacie I. Ringleb, Ajaya Dhakal, Claude D. Anderson, Sebastian Bawab, Rajesh Paranjape Jan 2011

Effects Of Lateral Ligament Sectioning On The Stability Of The Ankle And Subtalar Joint, Stacie I. Ringleb, Ajaya Dhakal, Claude D. Anderson, Sebastian Bawab, Rajesh Paranjape

Mechanical & Aerospace Engineering Faculty Publications

Patients with subtalar joint instability are often diagnosed with ankle instability. Only after a prolonged period of time in which a patient does not improve after treatment for ankle instability is subtalar joint instability considered. To develop a clinically relevant method to diagnose subtalar joint instability, the kinematics of the simulated unstable subtalar joint were examined. A 6 degree-of-freedom positioning and loading device was developed. Plantarflexion/dorsiflexion, inversion/eversion, and internal/external rotation were applied individually or as coupled motions along with an anterior/posterior drawer. Kinematic data were collected from sensors attached to the calcaneus, talus, and tibia by keeping all the ligaments …


The District-Wide Sustainability Of A Professionallearning Community During Leadership Changes At The Superintendency Level, Jesus Abrego, Anita Pankake Jan 2011

The District-Wide Sustainability Of A Professionallearning Community During Leadership Changes At The Superintendency Level, Jesus Abrego, Anita Pankake

Organization and School Leadership Faculty Publications

The purpose of this mixed methods follow-up single case study was two-fold: to determine if a school district was able to sustain a professional learning community (PLC) and to identify factors that enhanced, inhibited, or promoted the sustainability of a PLC from a district-wide perspective, with particular focus on how a change in leadership, i.e. a new superintendent, affected the sustainability of PLC attributes. In addition, the role of trust in influencing the sustainability of a professional learning community will be discussed in this paper.


The Doubly Inflated Poisson And Related Regression Models, Manasi Sheth-Chandra Jan 2011

The Doubly Inflated Poisson And Related Regression Models, Manasi Sheth-Chandra

Mathematics & Statistics Theses & Dissertations

Most real life count data consists of some values that are more frequent than allowed by the common parametric families of distributions. For data consisting of only excess zeros, in a seminal paper Lambert (1992) introduced Zero-Inflated Poisson (ZIP) model, which is a mixture model that accounts for the inflated zeros. In this thesis, two Doubly Inflated Poisson (DIP) probability models, DIP (p, λ) and DIP ( p1, p2, λ), are discussed for situations where there is another inflated value k > 0 besides the inflated zeros. The distributional properties such as identifiability, moments, and conditional probabilities …


Novice Principals Need Peer Mentoring, Rosalinda Hernandez, Velma D. Menchaca Jan 2011

Novice Principals Need Peer Mentoring, Rosalinda Hernandez, Velma D. Menchaca

Organization and School Leadership Faculty Publications

In this era of accountability, principals are now responsible for student achievement on high-stakes state-mandated assessments and the No Child Left Behind Act. The novice principals who enter the profession today face a multitude of issues as they learn on the job. Skills necessary to lead highly complex schools are not learned in traditional principal preparation programs, therefore, it becomes essential to support and assist novice principals at the beginning of the principalship career with a peer mentor, a more experienced school leader. Peer mentoring allows the principals to be socialized into the profession they are about to embark on …


Things Fall Apart: Regulating The Credit Default Swap Commons, Kristen N. Johnson Jan 2011

Things Fall Apart: Regulating The Credit Default Swap Commons, Kristen N. Johnson

University of Colorado Law Review

Financial markets are an important national and international infrastructure resource that reflect attributes similar to the those that characterize commons, as described in property law literature. Through a case study examining the credit default swap market, this Article illustrates the analogy between financial markets and a traditional commons. After exploring the attributes of a commons, this Article examines the costs and benefits of the credit default swap market. Similar to a traditional commons, tragedy in financial markets occurs when market participants capture benefits while imposing the costs or negative externalities from their activities on other members of society. Commons scholars' …


Dismantling The Trojan Horse: Mesa County Board Of County Commissioners V. State, Anna-Liisa Mullis Jan 2011

Dismantling The Trojan Horse: Mesa County Board Of County Commissioners V. State, Anna-Liisa Mullis

University of Colorado Law Review

Under the Taxpayer's Bill of Rights ("TABOR"), an amendment to the Colorado Constitution, the Colorado state and local governments are severely restricted in the amount of revenue they can collect and in their ability to set fiscal policy. As a result, TABOR has forced the state and local governments to shrink relative to the economy and has prevented legislators and government officials from altering TABOR's more unworkable provisions. In 2009, the Colorado Supreme Court decided Mesa County Board of County Commissioners v. State, in which the court rightfully restored a modicum of legislative discretion over the budgeting and taxation processes. …


Parchment, Pixels, & Personhood: User Rights And The Ip (Identity Politics) Of Ip (Intellectual Property), John Tehranian Jan 2011

Parchment, Pixels, & Personhood: User Rights And The Ip (Identity Politics) Of Ip (Intellectual Property), John Tehranian

University of Colorado Law Review

This Article challenges copyright's prevailing narrative on personhood, which has typically focused on the identity interests that authors enjoy in their creative output. Instead, the analysis explores the personhood interests that consumers possess in copyrighted works. Drawing on a wide range of examples-from flag burning as copyright infringement, the "Kookaburra"c ontroversy, and the crowd-sourced origins of the Serenity Prayer to the reported innumeracy of the enigmatic Piraha Amazonians, the apocryphal source of ancient Alexandria's Royal Library and the unusually fragile nature of digital media-the Article advances a Hegelian refutation to intellectual property maximalism and a theory of copyright that recognizes …


Event Hospitality, James Pokrywczynski Jan 2011

Event Hospitality, James Pokrywczynski

College of Communication Faculty Research and Publications

No abstract provided.


Spider Cognition, Robert R. Jackson, Fiona R. Cross Jan 2011

Spider Cognition, Robert R. Jackson, Fiona R. Cross

All Peer-Reviewed Publications

Spiders, having minute brains, were once considered simple, instinct-driven automatons, but research on spider biology is revealing increasing evidence of their cognitive abilities. In this review, we discuss the complex, flexible behaviour of spiders, especially salticids, and highlight how sometimes the cognitive character of spider behaviour closely parallels that of much bigger animals. This includes the use of selective attention (both visual and olfactory) and the use of planned detours. The implications of these findings, and how they relate to bigger issues traditionally associated with big-brain animals, such as 'representation' and 'mind', are discussed. Also discussed are issues relating to …


Construction Of A Ssr-Based Genetic Map And Identification Of Qtl For Domestication Traits Using Recombinant Inbred Lines From A Cross Between Wild And Cultivated Cowpea (V. Unguiculata (L.) Walp.), Mebeaselassie Andargie, Remy S. Pasquet, Bhavani S. Gowda, Geoffrey M. Muluvi, Michael P. Timko Jan 2011

Construction Of A Ssr-Based Genetic Map And Identification Of Qtl For Domestication Traits Using Recombinant Inbred Lines From A Cross Between Wild And Cultivated Cowpea (V. Unguiculata (L.) Walp.), Mebeaselassie Andargie, Remy S. Pasquet, Bhavani S. Gowda, Geoffrey M. Muluvi, Michael P. Timko

All Peer-Reviewed Publications

Cowpea (Vigna unguiculata (L.) Walp.) is a grain legume commonly grown and consumed in many parts of the tropics and subtropics. A genetic linkage map was constructed using simple sequence repeat (SSR) markers and a recombinant inbred (RI) population of159 individuals derived from a cross between the breeding line 524B, a California Blackeye, and 219-01, a perennial wild cowpea from Kenya. Out of 912 primer combinations predicted to amplify SSRs in cowpea, 639 reliably produced amplification products in PCR assays and 202 (31.6%) were polymorphic between the two parents. These polymorphic SSRs were used to construct a genetic map consisting …


Sex Pheromone Composition And Reproductive Isolation In Two Busseola Species (Lepidoptera: Noctuidae) In Kenya, A. E. Félix, P. A. Calatayud, B. Le Ru, J. F. Silvain, B. Frérot Jan 2011

Sex Pheromone Composition And Reproductive Isolation In Two Busseola Species (Lepidoptera: Noctuidae) In Kenya, A. E. Félix, P. A. Calatayud, B. Le Ru, J. F. Silvain, B. Frérot

All Peer-Reviewed Publications

Closely related species provide an interesting and useful model to understand mate communication diversification. Pre-mating isolation is the result of selection processes and is achieved by utilization of different sex pheromones, but also by different ecological and life traits such as geographic distribution, host-plant specialization and allochrony of sexual behavior. Here, we report sex pheromone identifications and pre-mating isolation of two closely related species of stemborers: Busseola segeta and the yet undescribed Busseola nov. sp., developing on different host-plants and in different geographical locations in Kenya. GC-MS analyses showed that the two species produced the same pheromone components, but in …


Isolation, Phylogeny And Evolution Of The Symrk Gene In The Legume Genus Lupinus L., Frédéric Mahé, Dragomira Markova, Rémy Pasquet, Marie Thérèse Misset, Abdelkader Aïnouche Jan 2011

Isolation, Phylogeny And Evolution Of The Symrk Gene In The Legume Genus Lupinus L., Frédéric Mahé, Dragomira Markova, Rémy Pasquet, Marie Thérèse Misset, Abdelkader Aïnouche

All Peer-Reviewed Publications

SymRK is one of the key genes involved in initial steps of legume symbiotic association with fungi (mycorrhization) and nitrogen-fixing bacteria (nodulation). A large portion of the sequence encoding the extracellular domain of SYMRK was obtained for 38 lupine accessions and 2 outgroups in order to characterize this region, to evaluate its phylogenetic utility, and to examine whether its molecular evolutionary pattern is correlated with rhizobial diversity and specificity in Lupinus. The data suggested that, in Lupinus, SymRK is a single copy gene that shows good phylogenetic potential. Accordingly, SymRK provided additional support to previous molecular phylogenies, and shed additional …