The Pennsylvania School Code Requires a School District to Credit Teachers for Past Years of Service When Placing Those Teachers on a Local Salary Schedule

The Pennsylvania Supreme Court held that under the essence test, an arbitration award that denied re-hired teachers credit for prior years of service within the same school district for purposes of placement on a district\u27s local salary scale violated the Pennsylvania School Code. Mifflinburg Area Education Ass\u27n v. Mifflinburg Area School District, 724 A.2d 339 (Pa. 1999)

ECONOMIC IMPLICATIONS OF GLOBAL CLIMATE CHANGE FOR WORLD AGRICULTURE

This paper challenges the hypothesis that negative yield effects in key temperate grain producing regions of the world resulting from global climate change would have a serious impact on world food production. Model results demonstrate that even with concurrent productivity losses in the major grain producing regions of the world, global warming will not seriously disrupt world agricultural markets. Country/regional crop yield changes induce interregional adjustments in production and consumption that serve to buffer the severity of climate change impacts on world agriculture and result in relatively modest impacts on world agricultural prices and domestic economies.Environmental Economics and Policy,

Climate change and agriculture : global and regional effects using an economic model of international trade

Empirical estimates of the economic welfare implications of the impact of climate change on global agricultural production are made. Agricultural yield changes resulting from climate scenarios associated with a doubling of atmospheric trace gases are used as an input into a global model of agricultural supply and demand. The agricultural production, price and economic welfare implications for 32 separate geographic regions are computed for 9 scenarios. The 9 scenarios reported are based on 3 different general circulation models (GCMs), estimated with and without the direct effects of carbon dioxide on plant growth, and with different levels of adaptation. The major conclusions are that economic welfare losses tend to be more severe in developing countries, major agricultural exporters can gain significantly if world agricultural prices rise, and the carbon dioxide fertilization effect substantially offsets losses dut to climate change alone. In one scenario, the combination of carbon dioxide fertilization and adaptation led to net global welfare increases. Policy implications of the potential changes and uncertainty in the magnitude, direction , and timing of change are discussed.Funded by the Joint Program on the Science and Policy of Global Change at M.I.T

Geothermal Energy Market Study on the Atlantic Coastal Plain. GRITS (Version 9): Model Description and User's Guide

The Geothermal Resource Interactive Temporal Simulation (GRITS) model calculates the cost and revenue streams for the lifetime of a project that utilizes low to moderate temperature geothermal resources. With these estimates, the net present value of the project is determined. The GRITS model allows preliminary economic evaluations of direct-use applications of geothermal energy under a wide range of resource, demand, and financial conditions, some of which change over the lifetime of the project

How does context influence performance of community health workers in low- and middle-income countries? Evidence from the literature

Background Community health workers (CHWs) are increasingly recognized as an integral component of the health workforce needed to achieve public health goals in low- and middle-income countries (LMICs). Many factors intersect to influence CHW performance. A systematic review with a narrative analysis was conducted to identify contextual factors influencing performance of CHWs. Methods We searched six databases for quantitative, qualitative, and mixed-methods studies that included CHWs working in promotional, preventive or curative primary health care services in LMICs. We differentiated CHW performance outcome measures at two levels: CHW level and end-user level. Ninety-four studies met the inclusion criteria and were double read to extract data relevant to the context of CHW programmes. Thematic coding was conducted and evidence on five main categories of contextual factors influencing CHW performance was synthesized. Results Few studies had the influence of contextual factors on CHW performance as their primary research focus. Contextual factors related to community (most prominently), economy, environment, and health system policy and practice were found to influence CHW performance. Socio-cultural factors (including gender norms and values and disease related stigma), safety and security and education and knowledge level of the target group were community factors that influenced CHW performance. Existence of a CHW policy, human resource policy legislation related to CHWs and political commitment were found to be influencing factors within the health system policy context. Health system practice factors included health service functionality, human resources provisions, level of decision-making, costs of health services, and the governance and coordination structure. All contextual factors can interact to shape CHW performance and affect the performance of CHW interventions or programmes. Conclusions Research on CHW programmes often does not capture or explicitly discuss the context in which CHW interventions take place. This synthesis situates and discusses the influence of context on CHW and programme performance. Future health policy and systems research should better address the complexity of contextual influences on programmes. This insight can help policy makers and programme managers to develop CHW interventions that adequately address and respond to context to optimise performance

Clinical prevalence of Lewy body dementia.

BACKGROUND: The prevalence of dementia with Lewy bodies (DLB) and dementia in Parkinson's disease (PDD) in routine clinical practice is unclear. Prevalence rates observed in clinical and population-based cohorts and neuropathological studies vary greatly. Small sample sizes and methodological factors in these studies limit generalisability to clinical practice. METHODS: We investigated prevalence in a case series across nine secondary care services over an 18-month period, to determine how commonly DLB and PDD cases are diagnosed and reviewed within two regions of the UK. RESULTS: Patients with DLB comprised 4.6% (95% CI 4.0-5.2%) of all dementia cases. DLB was represented in a significantly higher proportion of dementia cases in services in the North East (5.6%) than those in East Anglia (3.3%; χ2 = 13.6, p < 0.01). DLB prevalence in individual services ranged from 2.4 to 5.9%. PDD comprised 9.7% (95% CI 8.3-11.1%) of Parkinson's disease cases. No significant variation in PDD prevalence was observed between regions or between services. CONCLUSIONS: We found that the frequency of clinical diagnosis of DLB varied between geographical regions in the UK, and that the prevalence of both DLB and PDD was much lower than would be expected in this case series, suggesting considerable under-diagnosis of both disorders. The significant variation in DLB diagnostic rates between these two regions may reflect true differences in disease prevalence, but more likely differences in diagnostic practice. The systematic introduction of more standardised diagnostic practice could improve the rates of diagnosis of both conditions

Cohort profile: the United Kingdom Childhood Cancer Study (UKCCS) – a UK- wide population- based study examining the health of cancer survivors

Purpose The United Kingdom Childhood Cancer Study’s (UKCCS’s) matched cohort was established to examine the longer term morbidity and mortality of individuals previously diagnosed with cancer before 15 years of age, comparing future healthcare patterns in 5-year cancer survivors to baseline activity seen in age- and sex-matched individuals from the general population.Participants Predicated on a national childhood cancer case-control study conducted in the early 1990s (4430 cases, 9753 controls) in England, Scotland and Wales, the case population comprises 3125 cancer survivors (&gt;5 years), and the control population 7156 age- and sex-matched individuals from the general population who did not have cancer as a child. Participants are now being followed up via linkage to national administrative healthcare databases (deaths, cancers and secondary care hospital activity).Findings to date Enabling the creation of cohorts with minimal selection bias and loss to follow-up, the original case-control study registered all newly diagnosed cases of childhood cancer and their corresponding controls, regardless of their family’s participation. Early findings based on the registered case population found marked survival variations with age and sex across subtypes and differences with deprivation among acute lymphoblastic leukaemia (ALL) survivors. More recently, comparing the health-activity patterns of the case and control populations revealed that survivors of childhood ALL experienced excess outpatient and inpatient activity across their teenage/young adult years. Adding to increased risks of cancer and death and involving most clinical specialties, excesses were not related to routine follow-up monitoring and showed no signs of diminishing over time.Future plans With annual linkage updates, the UKCCS’s maturing population-based matched cohorts provide the foundation for tracking the health of individuals through their lifetime. Comparing the experience of childhood cancer survivors to that of unaffected general-population counterparts, this will include examining subsequent morbidity and mortality, secondary care hospital activity and the impact of deprivation on longer term outcomes

Focused fluid seepage related to variations in accretionary wedge structure, Hikurangi margin, New Zealand

Hydrogeological processes influence the morphology, mechanical behavior, and evolution of subduction margins. Fluid supply, release, migration, and drainage control fluid pressure and collectively govern the stress state, which varies between accretionary and nonaccretionary systems. We compiled over a decade of published and unpublished acoustic data sets and seafloor observations to analyze the distribution of focused fluid expulsion along the Hikurangi margin, New Zealand. The spatial coverage and quality of our data are exceptional for subduction margins globally. We found that focused fluid seepage is widespread and varies south to north with changes in subduction setting, including: wedge morphology, convergence rate, seafloor roughness, and sediment thickness on the incoming Pacific plate. Overall, focused seepage manifests most commonly above the deforming backstop, is common on thrust ridges, and is largely absent from the frontal wedge despite ubiquitous hydrate occurrences. Focused seepage distribution may reflect spatial differences in shallow permeability architecture, while diffusive fluid flow and seepage at scales below detection limits are also likely. From the spatial coincidence of fluids with major thrust faults that disrupt gas hydrate stability, we surmise that focused seepage distribution may also reflect deeper drainage of the forearc, with implications for pore-pressure regime, fault mechanics, and critical wedge stability and morphology. Because a range of subduction styles is represented by 800 km of along-strike variability, our results may have implications for understanding subduction fluid flow and seepage globally

Limits and opportunities to community health worker empowerment: A multi-country comparative study.

BACKGROUND In LMICs, Community Health Workers (CHW) increasingly play health promotion related roles involving 'Empowerment of communities'. To be able to empower the communities they serve, we argue, it is essential that CHWs themselves be, and feel, empowered. We present here a critique of how diverse national CHW programs affect CHW's empowerment experience. METHODS We present an analysis of findings from a systematic review of literature on CHW programs in LMICs and 6 country case studies (Bangladesh, Ethiopia, Indonesia, Kenya, Malawi, Mozambique). Lee & Koh's analytical framework (4 dimensions of empowerment: meaningfulness, competence, self-determination and impact), is used. RESULTS CHW programs empower CHWs by providing CHWs, access to privileged medical knowledge, linking CHWs to the formal health system, and providing them an opportunity to do meaningful and impactful work. However, these empowering influences are constantly frustrated by - the sense of lack/absence of control over one's work environment, and the feelings of being unsupported, unappreciated, and undervalued. CHWs expressed feelings of powerlessness, and frustrations about how organisational processual and relational arrangements hindered them from achieving the desired impact. CONCLUSIONS While increasingly the onus is on CHWs and CHW programs to solve the problem of health access, attention should be given to the experiences of CHWs themselves. CHW programs need to move beyond an instrumentalist approach to CHWs, and take a developmental and empowerment perspective when engaging with CHWs. CHW programs should systematically identify disempowering organisational arrangements and take steps to remedy these. Doing so will not only improve CHW performance, it will pave the way for CHWs to meet their potential as agents of social change, beyond perhaps their role as health promoters