290 research outputs found
Long Term Phenological Shifts in Moth Communities in Central New York
Climate change has led to phenological shifts for many taxa. Using light trap data documenting moth communities in 1919 and 1922 in Ithaca, NY, historic moth phenology was compared to current iNaturalist observational records for Tompkins County, NY. It was hypothesized that warming temperatures over the last century would result in earlier emergence of the first brood, longer flight periods, and more generations per year. The week in the year that a species was first seen, climaxed, and last seen for each species that was observed historically in both 1919 and 1922 was recorded. Moth species have experienced a shift to longer flight duration, and are active later in the year than historically observed. Species with plastic voltinism experienced an increase in broods per year. The local extirpation of six species was also observed. Global change associated with temperature shifts is likely influencing the flight periods of moths in the northeast.https://orb.binghamton.edu/research_days_posters_2024/1052/thumbnail.jp
GPDs and DVCS with Positrons
The beam charge asymmetry helps to isolate the real part of the deeply
virtual Compton scattering (DVCS) amplitude. It is discussed what information
can be gained both from the real and imaginary part of the DVCS amplitude.Comment: 5 pages, 2 figures, invited talk at `Workshop on Positrons at
Jefferson Lab
New measurement of charge asymmetry from HERA
After presenting the recent measurements of neutral current cross section in
DIS at HERA, we explain the effect of the interference at the
electro-weak scale, visible on these data. Then, the beam charge difference
is measured and the interference itself is extracted. Results are
discussed in the context of perturbative QCD.Comment: 4 pages, 3 figures, proceedings of the International Workshop on
Positrons at Jefferson Lab (March 25-27, 2009), Thomas Jefferson National
Accelerator Facility, Newport News, V
Productive pedagogies in expressive arts lessons in Malawi
AbstractThe national government in Malawi implemented a new Curriculum: the PrimaryCurriculum and Assessment Reform in 2007. The purpose of this study was to investigatethe enactment of one of the Learning areas, Expressive Arts in three urban and three ruralschools in Zomba district where teachers were first trained to teach Expressive Arts. Thestudy is framed by the Productive Pedagogies framework (Lingard, Hayes, Ladwig, Mills,Bahr et al., 2001). Following a qualitative research design, data were collected throughobservation and post-observation interviews. Data analysis showed limited productivepedagogies in most lessons. The majority of lessons were predominantly characterised bylower intellectual quality, a focus on instrumental knowledge, integration at a superficiallevel, dominance of communalising and gendered practices rather than ‘engagement withdifference’, prevalence of localising discourses ‘rather than connectedness to the world’ anda pedagogy aimed at national examinations. It appears that dominant pedagogic practices inthe Expressive Arts classroom serve to position learners in parochial orientations andissues. There was an obvious disjuncture between the intended curriculum and enactedcurriculum.The overall findings is that the enacted curriculum gave students limited opportunities forthe acquisition of knowledge and development of skills, values and attitudes required forthem to actively participate in the changing Malawian context and to be able to competesuccessfully in other contexts
Curriculum Change and Development in Malawi: A Historical Overview
To improve the quality of primary education in Malawi, the national government embarked on curriculum reform in 2001 and adopted an Outcomes Based curriculum in 2007. The new curriculum differs radically from its predecessors. This paper employs a historical approach to explore pre-colonial, colonial and post-colonial curriculum change and development in Malawi. The origin and attributes of the present OBE curriculum is emphasized and an attempt is made to explain the forces and imperatives that shaped it. This conceptual paper focuses on the process and rationale that resulted in the decision to revive the primary curriculum in 2001 to come up with an outcomes-based curriculum, and the influence of the first post-apartheid South African curriculum (C2005, 1998) on the design features of the new curriculum in Malawi. It is based on primary sources such as curriculum documents and secondary sources on curriculum development in Malawi. The paper raises concerns relating to ‘unproblematic burrowing’ of curriculum policies from South Africa, given the review and revision of C2005 in South Africa in 2000.
DOI: 10.5901/mjss.2014.v5n16p33
Two-photon exchange measurements with positrons and electrons
Two-photon exchange contributions have potentially broad ranging impact on
several charged lepton scattering measurements. Previously believed to be
extremely small, based in part on comparisons of positron scattering and
electron scattering in the 1950s and 1960s, recent data suggest that the
corrections may be larger than expected, in particular in kinematic regions
that were inaccessible in these early positron scattering measurements.
Additional measurements using positron beams at Jefferson Lab would allow for a
detailed investigation of these contributions in a range of reactions and
observables.Comment: 6 pages, proceedings from the International Workshop on Positrons at
Jefferson Lab (JPOS09), Jefferson Lab, Newport News, VA, March 25-27, 200
Feasibility and tolerability of whole-body, low-intensity vibration and its effects on muscle function and bone in patients with dystrophinopathies: a pilot study.
IntroductionDystrophinopathies are X-linked muscle degenerative disorders that result in progressive muscle weakness complicated by bone loss. This study's goal was to evaluate feasibility and tolerability of whole-body, low-intensity vibration (WBLIV) and its potential effects on muscle and bone in patients with Duchenne or Becker muscular dystrophy.MethodsThis 12-month pilot study included 5 patients (age 5.9-21.7 years) who used a low-intensity Marodyne LivMD plate vibrating at 30-90 Hz for 10 min/day for the first 6 months. Timed motor function tests, myometry, and peripheral quantitative computed tomography were performed at baseline and at 6 and 12 months.ResultsMotor function and lower extremity muscle strength remained either unchanged or improved during the intervention phase, followed by deterioration after WBLIV discontinuation. Indices of bone density and geometry remained stable in the tibia.ConclusionsWBLIV was well tolerated and appeared to have a stabilizing effect on lower extremity muscle function and bone measures. Muscle Nerve 55: 875-883, 2017
U.S. Government Raises the Bar on Deemed Exports and Continues Other Trade Restrictions
Este proyecto de investigación contiene un diseño de un proceso de Gestión de Seguridad y Salud Ocupacional basado en la ISO 45001, propuesto para las MYPES productoras de palta Hass, con el objetivo de disminuir los riesgos presentes en sus actividades, lo cual es un problema relevante debido a los accidentes y enfermedades comunes que presentan.
El primer capÃtulo está compuesto por un estado del arte en base a artÃculos cientÃficos que se encuentran en un periodo de 5 años antes, además, cuenta con un marco teórico con temas relacionados a las MYPES en el Perú, asociatividad, gestión por procesos, productividad, y seguridad y salud ocupacional. En el segundo capÃtulo, se efectúa un diagnóstico de la situación actual de las MYPES productoras de palta hass, en donde se identificaron distintos problemas que originan una baja productividad en la producción de la palta hass. En el tercer capÃtulo, se plantea un diseño de un sistema de gestión de seguridad y salud ocupacional basada en la gestión por procesos, con la finalidad de fomentar una cultura de preventiva, la cual reduce los riesgos y mejora la productividad en el sector agrÃcola de palta Hass. En el capÃtulo cuatro, se presenta la validación tanto de los expertos como de los agricultores, con la finalidad de obtener recomendaciones y poder mejorar el diseño del proceso que se propone. Por último, en el capÃtulo 5 se presenta las conclusiones, recomendaciones y las futuras lÃneas de investigación acerca del modelo propuesto.This research project contains a design of an Occupational Health and Safety Management process based on ISO 45001, proposed for the MYPES producing Hass avocado, with the objective of reducing the risks present in their activities, which is a relevant problem due to the accidents and common diseases they present.
The first chapter is composed of a state of the art based on scientific articles that are found in a period of 5 years before, in addition, it has a theoretical framework with issues related to MYPES in Peru, associativity, process management, productivity , and occupational health and safety. In the second chapter, a diagnosis is made of the current situation of the MYPES producing hass avocado, where different problems were identified that cause low productivity in the production of hass avocado. In the third chapter, a design of an occupational health and safety management system based on process management is proposed, in order to foster a culture of prevention, which reduces risks and improves productivity in the agricultural sector of Hass avocado. In the fourth chapter, the validation of both experts and farmers is presented, in order to obtain recommendations and to improve the design of the proposed process. Finally, chapter 5 presents the conclusions, recommendations and future lines of research on the proposed model.Tesi
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