The Lander Chronicle Spring 2006

The Official Newspaper of Lander College for Men; Beis Medrash L\u27Talmud Spring 2006/5766.https://touroscholar.touro.edu/archives_books/1254/thumbnail.jp

Decarbonisation pathways for fossil fuel-based district heating networks using heat pumps

Decarbonising the energy sector is crucial for addressing climate change concerns. Traditional UK district heating networks heavily rely on large, centralised gas-fired plants driven by economies of scale. However, the changing energy landscape necessitates a shift towards low-carbon alternatives in existing heating systems. This study fills a significant knowledge gap by examining strategies to decarbonise district heating networks (HN) through the integration of heat pumps (HPs) at different temperatures. It comprehensively assesses cost-effectiveness, energy efficiency, and operational carbon emissions. The findings emphasize the seamless integration of HPs into diverse settings, enabling them to extract heat from air, ground, or water sources and resulting in substantial carbon savings. Moreover, harnessing waste heat from the London Underground presents a substantial opportunity for emission reductions. Nevertheless, the viability of biogas is limited in densely populated areas like London. This research makes a noteworthy contribution to UK decarbonisation efforts, offering a practical roadmap for widespread adoption of HPs and a sustainable future

Stuck at home in a cold home: the implications of Covid-19 for the fuel poor

Policies to address the impact of Covid-19 on low income energy consumers have rightly focussed on energy bills, particularly in the context of home confinement and increased energy consumption. In the longer term, however, we need policies to improve home energy standards. The evidence shows that higher standards reduce the risk of getting a respiratory illness, improve the health of those already with a respiratory illness, improve the ability of our immune systems to fight off illness and reduce the use of health services

J Occup Environ Hyg

Cold rooms are commonly used for food storage and preparation, and are usually kept around 40\uc2\ub0F following food safety guidelines. Some food preparation employees may spend 8 or more hours inside cold rooms. These employees may not be aware of the risks associated with mildly cold temperatures, dampness, and limited ventilation. We performed an evaluation of cold rooms at an airline catering facility because of concerns with exposure to cold temperatures. We spoke with and observed employees in two cold rooms, reviewed daily temperature logs, evaluated employee's physical activity, work/rest schedule, and protective clothing. We measured temperature, percent relative humidity, and air velocities at different work stations inside the cold rooms. We concluded that thermal comfort concerns perceived by cold room employees may have been the result of air drafts at their workstations, insufficient use of personal protective equipment due to dexterity concerns, work practices, and lack of knowledge about good health and safety practices in cold rooms. These moderately cold work conditions with low air velocities are not well covered in current occupational health and safety guidelines, and wind chill calculations do not apply. We provide practical recommendations to improve thermal comfort of cold room employees. Engineering control recommendations include the redesigning of air deflectors and installing of suspended baffles. Administrative controls include the changing out of wet clothing, providing hand warmers outside of cold rooms, and educating employees on cold stress. We also recommended providing more options on personal protective equipment. However, there is a need for guidelines and educational materials tailored to employees in moderately cold environments to improve thermal comfort and minimize health and safety problems.UYL7/Intramural CDC HHS/United States2015-09-01T00:00:00Z25961447PMC454064

Levi Pennington Writing to Harold Byrd, January 9, 1947

Levi Pennington writing to Harold Byrd, who had just gotten out of a trial for burglary, offering his advice and imploring him to live decently.https://digitalcommons.georgefox.edu/levi_pennington/1119/thumbnail.jp

Scrambled statistics: What are the chances of finding multi-yolk eggs?

© 2016 The Royal Statistical Society Journalists ask a lot of questions of statisticians, but some are more bizarre than others. Statistical ambassador Deirdre Toher recounts one such experience

J Occup Environ Hyg

Large discrepancies between laboratory permeation testing and field exposures have been reported, with indications that hand movement could account for a portion of these differences. This study evaluated the influence of simulated movement on chemical permeation of 30 different disposable nitrile glove products. Products were investigated out-of-box and with exposure to simulated whole-glove movement. Permeation testing was conducted using ethanol as a surrogate test chemical. A previously designed pneumatic system was used to simulate hand movement. No movement and movement tests were matched-paired to control for environmental conditions, as were statistical analyses. Permeation data were collected for a 30-min exposure period or until a breakthrough time (BT) and steady-state permeation rate (SSPR) could be determined. A third parameter, area under the curve at 30\uc2\ua0min (AUC-30), was used to estimate potential worker exposure. With movement, a significant decrease in BT (p\uc2\ua0\ue2\u2030\ua4 0.05), ranging from 6-33%, was observed for 28 products. The average decrease in BT was 18% (p \ue2\u2030\ua4 0.001). With movement, a significant increase in SSPR (p \ue2\u2030\ua4 0.05), ranging from 1-78%, was observed with 25 products. The average increase in SSPR was 18% (p \ue2\u2030\ua4 0.001). Significant increases in AUC-30 (p\uc2\ua0\ue2\u2030\ua4 0.05), ranging from 23-277%, were also observed for all products where it could be calculated. On average, there was a 58% increase (p \ue2\u2030\ua4 0.001). The overall effect of movement on permeation through disposable nitrile gloves was significant. Simulated movement significantly shortened the BT, increased the SSPR, and increased the cumulative 30-min exposure up to three times. Product variability also accounted for large differences, up to 40\uc2\ua0times, in permeation and cumulative exposure. Glove selection must take these factors into account. It cannot be assumed that all products will perform in a similar manner.1R21OH009327-01A2/OH/NIOSH CDC HHS/United StatesG11 HD052368/HD/NICHD NIH HHS/United StatesHD052368/HD/NICHD NIH HHS/United StatesR21 CA093271/CA/NCI NIH HHS/United States2013-11-01T00:00:00Z23009187PMC349518

Estimación de la emisión de gases de efecto invernadero en el municipio de Montería (Córdoba, Colombia)

En este trabajo se presenta la primera versión del inventario de emisiones de gases de efecto invernadero para el año de 2005 en el municipio de Montería (Córdoba, Colombia). Este inventario incluye las emisiones provenientes de los vehículos automotores, los rellenos sanitarios y las fuentes biogénicas. No se tuvieron en cuenta las fuentes puntuales por ser estas muy escasas en la zona de estudio y generar contaminantes diferentes a los gases de efecto invernadero. Los estimativos que aquí se presentan no corresponden a valores absolutos; las cifras son el producto de métodos indirectos de cálculo, que deben ser interpretados como indicadores de las cantidades realmente emitidas. Se presentan con el fin de ilustrar el orden de magnitud en que pueden estar las descargas al ambiente y las principales actividades que las producen