Evaluating the Recovery of Upper Saranac Lake, NY

Anthropogenic impacts to the Upper Saranac Lake watershed have been occurring for over 130 years. The ecological degradation became widely recognized 1989-1990 when a series of persistent cyanobacterial blooms plagued the lake. Of the numerous nutrient sources in the watershed, the most influential discharger was believed to be the Adirondack Fish Culture Station, a hatchery operated by the New York State Department of Environmental Conservation for over 100 years. Facing litigation from the Upper Saranac Lake Association, Hatchery management initiated strategies to significantly reduce phosphorus discharge beginning in 1993. The objective of this study is to evaluate the recovery of the lake by examining historical limnological data. Concentrations of total phosphorus and chlorophyll-a in the surface water have exhibited significant declines since the early 1990s. Oxygen depletion rate in the bottom strata has also exhibited positive signs of recovery; however, the re-occurring hypoxia in the shallow north basin shows no sign of recovery. Despite reductions in nutrients and algal abundance, the transparency of the lake has significantly decreased over the study period. Analysis of 26 years of data indicates that the trophic condition of Upper Saranac Lake has experienced substantial recovery from the degraded state observed in the early 1990s, although impact from multiple environmental stressors may be masking the typical signals of trophic recovery

Poderemos encontrar factores preditivos de vómitos no pós-operatório de cirurgia em regime de ambulatório?

Abstract A retrospective analyses of patients submitted to surgery on a day basis was made through our database. The goal of the study was to identify risk factors of postoperative vomiting associated to day surgery. 2115 patients operated between January 2003 and November 2004 on our day surgery unit were included. 70 patients (3,3%) suffered at least on episode of postoperative vomiting. Several factors were analysed: age, sex, surgical speciality, ASA physical status, anaesthetic technique and the duration of anesthesia. Chi-Square Test was used for testing each factor individually. Differences were considered significant when p <0,05. Logistic regression was then used to identify the multivariate association strength of these factors. The female sex (Odds ratio =4,94) and the duration of anesthesia when longer than 180 minutes (Odds ratio =8,13), had been associated to a higher incidence of postoperative vomiting, while loco-regional technique (Odds ratio = 0,15) and sedation with local anaesthesia (Odds ratio =0,09) had been associated with a lower incidence. Authors evidence the importance of the identification of postoperative vomiting risk factors that will allow us to establish better guidelines on postoperative nausea and vomiting prophylaxis in these patients and to improve the quality of our clinical care and the satisfaction of our patients. Através da análise do registo informatizado de dados dos doentes operados em regime de ambulatório, os autores procuraram identificar factores de risco que se encontrassem associados a uma maior incidência de vómitos no pós-operatório (VPO). Incluíram-se 2115 doentes submetidos a cirurgia entre Janeiro de 2003 e Novembro de 2004, tendo 70 doentes sofrido pelo menos um episódio de VPO (3,3%). Foram consideradas variáveis a analisar, a idade, o sexo, a especialidade cirúrgica, o estado físico (ASA), a técnica anestésica e a duração da anestesia. Procedeu-se à análise estatística de cada factor individualmente através da aplicação do χ2, seguindo-se a utilização de uma regressão logística para identificar a força de associação multivariável desses factores. O sexo feminino (Odds ratio =4,94) e a duração da anestesia quando superior a 180 minutos (OR =8,13), associaram-se a uma maior incidência de VPO enquanto a técnica loco-regional (OR =0,15) e a sedação com anestesia local (OR =0,09) se associaram a uma menor incidência daqueles. Os autores evidenciam a importância deste tipo de trabalhos na identificação de factores de risco que possam levar à criação de escalas de risco que orientem com maior racionalidade económica, a intervenção terapêutica profiláctica das náuseas e vómitos no pós-operatório

Application and Modeling of Stage Triggers to Enforce the Firm Capacity and Conditional Releases Rule for Flood Event Structure Operations as Part Of Kissimmee River Restoration Project Requirements

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

FACTORES DE RIESGO PARA HIPERTENSIÓN PULMONAR EN PACIENTES CON ENFERMEDADES CARDIACAS EN EL HOSPITAL GENERAL DE ATIZAPÁN DEL PERIODO DE JULIO DEL 2010 A JULIO DEL 2013

1. RESUMEN El presente estudio, identifica las enfermedades más frecuentes que se relacionan con la hipertensión pulmonar en el Hospital General de Atizapán, dentro de las consideración de la bibliografía, se consideró está para la determinación de las enfermedades asociadas como factores de predisposición a presentar hipertensión arterial pulmonar, identificándose, por medio del ecocardiograma, aquellos casos en los que el diagnóstico de la enfermedad fuese determinada por este medio auxiliar diagnóstico, se determinaron correlaciones con positivas para ciertas enfermedades concordantemente con la bibliografía, se demostró una mayor correlación con ciertas enfermedades pero en la población estudiada no todos los casos cumplen con la correlación y la hipertensión arterial pulmonar, lo que arroja que la hipertensión arterial pulmonar está siendo sub diagnosticada y que además hay otro grupo de enfermedades que son sobre diagnosticadas. Una posibilidad se puede encontrar, de forma molecular, en la respuesta genética de los individuos ante los agentes externos que pueden influir en los procesos inflamatorios, la predisposición de algunas personas a sufrir mayor lesión que otros, permite abrir pautas a investigaciones a grupos étnicos que desarrollen de forma rápida y progresivamente hipertensión arterial pulmonar ante ciertos estímulos. Ello plantea un panorama ético de mejor práctica médica, buscando acercarse, en el ámbito de la investigación, a marcadores que doten de valor predictivo sobre la posibilidad de desarrollar el trastorno, o en su consideración más asertiva, de apoyo en el control y manejo a largo plazo. Se abren oportunidades de interés para ampliar el conocimiento a la investigación más detallada en un grupo poblacional en una línea de tiempo que pretenda detectar tanto los factores de mayor correlación, así como el común entre todas ellos. La detección temprana mejora la calidad de vida

Polarization switching in vertical-cavity surface emitting lasers observed at constant active region temperature

Includes bibliographical references (page 3352).Polarization switching in gain-guided, vertical-cavity, surface-emitting lasers was studied as a function of the active region temperature. We show that polarization switching occurs even when the active region temperature is kept constant during fast pulse low duty cycle operation. This temperature independent polarization switching phenomenon is explained in terms of a recently developed model

Application of the Kissimmee River Hydraulic Model and Floodplain Spatial Analysis Tool to the Development of Floodplain Inundation Targets for the Kissimmee River Restoration Project

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

Transient response of vertical-cavity surface-emitting lasers of different active-region diameters

Includes bibliographical references (pages 614-615).The multimode dynamics of vertical-cavity surface-emitting lasers with different active-region diameters was measured under subnanosecond electrical excitation (800-ps pulse duration, 100-ps risetime). The dynamics is characterized by the delayed onset of higher order modes which have a turn-on delay that is dependent on the active-region diameter and the excitation parameters. A simple model that can be used to estimate this turn-on delay for large-area devices is presented. Polarization resolved measurements show that, under this fast excitation condition, both orthogonal polarization states are isomorphic. The influence of the observed dynamics on the relative intensity noise of these devices is also discussed

Virtualization of niebla formation sites (upper miocene) in the Huelva province: valuating the paleontological heritage in differentiate educative settings II

El patrimonio paleontológico del Neógeno de la provincia de Huelva es uno de los más importantes de España y referente europeo de moluscos de este período. Sin embargo, no existe un inventario de catalogación básica de los principales yacimientos ni de los principales grupos fósiles presentes, así como de su importancia como patrimonio natural. El presente trabajo pretende rellenar este notable vacío con una proyección tanto hacia materias preuniversitarias como universitarias, así como hacia posibles instituciones y corporaciones públicas susceptibles de utilizarlo en sus planes de ordenación. Por otro lado, se pretende que actúe como mecanismo de interconexión entre titulaciones con bajo número de alumnos de nuevo ingreso y los centros de Bachillerato, de forma que incentive una posible elección de estos Grados por los alumnos de las opciones científico-tecnológicas. También puede ser interesante para captar egresados hacia Másteres Oficiales en Patrimonio Histórico y Natural. En este sentido, se ha realizado un DVD documental sobre el patrimonio paleontológico del Mioceno superior de la provincia de Huelva. Este documental incluye una visión de conjunto de los principales yacimientos de fósiles marinos de la Fm. Niebla, desarrollada en un marco transgresivo bajo unas condiciones más húmedas y cálidas que las actuales. Esta aportación es aplicable al trabajo de campo de varios Grados y Posgrados universitarios y de fácil uso como material didáctico en diversas asignaturas de E.S.O. y Bachillerato. Este trabajo se ha realizado en el marco del proyecto de innovación docente (PID nº 11003) de la Universidad de Huelva.The paleontological heritage from the Neogene in the province of Huelva is one of the most important in Spain and it is considered a European reference site for the mollusk fossil record from this period. However, there are not basic inventories neither for the main sites nor the major fossil groups. Furthermore, no inventories exist about their natural heritage importance. This work aims to fill this significant gap for both pre-university and university levels, as well as to public institutions and corporations that may use it in their management plans. In addition, it is intended to act as an linking mechanism between university degrees with low number of first-year students and high school centres, in order to encourage a possible choice of these Bachelor’s degrees by scientific and technological students. It may also be interesting to catch the attention of graduates for Official Masters in Historical and Natural Heritage. In this sense, a DVD-documentary has been made about the paleontological heritage from the Upper Miocene in the province of Huelva. This documental includes an overview of the main marine fossil sites from the Niebla Formation developed in a transgressive setting under more humid and warmer conditions than today. This contribution is useful for the fieldwork at Bachelor and Master Degree level and it is easy to use as teaching materials in different ESO (Obligatory Secondary Teaching) and High School subjects. This work has been funded for an Innovation in Teaching Project (PID No. 10050) of the Huelva University