505 research outputs found
Prediction of pressure-induced red shift of f->d(t2g) excitations in Cs2NaYCl6:Ce(3+) and its connection with bond length shortening
Quantum chemical calculations including embedding, scalar relativistic, and
dynamic electron correlation effects on Cs2NaYCl6:(CeCl6)3- embedded clusters
predict: (i) red shifts of the 4f->5d(t2g) transition with pressure and (ii)
bond length shortening upon 4f->5d(t2g) excitation. Both effects are found to
be connected which suggests that new high pressure spectroscopic experiments
could reveal the sign of the bond length change.Comment: 6 pages text; 1 table; 3 figures; to be published in J.Chem.Phy
El cerebro triuno y la inteligencia ética: matriz fundamental de la inteligencia multifocal
This study has for aim offer an analysis as for the brain triuno and the ethical intelligence: fundamental Counterfoil of the multifocal intelligence, taking in tells one of the theories that it sustains her like they are the different types of multiple intelligences established by Beauport and Cury (2004). The theoretical sustenance, it is based on the contents of Martin (2005), Belohlavek (2007), Galicians (2002), Beauport and Cury (2004), between others, being realized under a symbolic interpretive approach, across a qualitative methodology, type descriptive and not experimental design, by means of a documentary analysis. In this regard, it is found that the ethical intelligence is a mental mechanism that constructs the structural preconceptos and the rules of game with which an individual approaches the reality, that is to say, it is the capacity of the general formation, predicting the behavior for the achievement of aims organizacionales. As for the final considerations they focused in obtaining the most wide knowledge inside the organizations, allowing to reflect before the weaknesses that they present thinking about the brain triuno applying the multifocal intelligence, fundamental counterfoil of the ethical intelligence and of what way the rationing visualizes the strengths, nevertheless of the weaknesses that they present.Este estudio tiene por objetivo ofrecer un análisis sobre el cerebro triuno y la inteligencia ética, matriz fundamental de la inteligencia multifocal, tomando en cuenta una de las teorías que la sustentan como son los diferentes tipos de inteligencias múltiples establecidas por Beauport y Cury (2004). El sustento teórico está basado en los contenidos de Martín (2005), Belohlavek (2007), Gallegos (2002), Beauport y Cury (2004), entre otros. El estudio se realiza bajo un enfoque simbólicointerpretativo por medio de una metodología cualitativa de tipo descriptiva y diseño no experimental, mediante un análisis documental. A este respecto se establece que la inteligencia ética es un mecanismo mental que construye los preconceptos estructurales y las reglas de juego con que un individuo aborda la realidad, es decir, es la capacidad de la formación general, prediciendo el comportamiento para el logro de objetivos organizacionales. Las consideraciones finales se enfocan en obtener el conocimiento más amplio dentro de las organizaciones, permitiendo recapacitar ante las debilidades que se presentan, reflexionando sobre el cerebro triuno aplicando la inteligencia multifocal, matriz fundamental de la inteligencia ética y de qué manera el razonamiento visualiza las fortalezas, no obstante las debilidades que se presenten
Modified (Q, r) Inventory Control Policy for an Assemble-to-Order Environment
The traditional (Q,r) inventory control model assumes that the date at which the order is entered is the same as the date at which it is requested or expected to be delivered. Hence, the penalty cost is incurred when the customer places the order if inventory is unavailable. This is a reasonable assumption for retail systems and most distribution centers (DC), but not for an assemble-to-order (ATO) environment. In this scenario, there is a delivery time which is usually pre-negotiated and in addition to considering the manufacturing process time and in some cases the outbound transportation time, it also has some safety time built-in. This safety time is defined by the manufacturer and represents information related to when the penalty is incurred. The main objective of this research is to develop a modified (Q,r) policy that incorporates the safety time, and to evaluate this policy in terms of expected inventory cost and expected penalty cost / late orders. The problem is addressed following the heuristic approach discussed by Hadley and Whitin (1963). Two main models are developed based on the following assumptions: 1) early shipments are allowed by the customer, and 2) no early shipments are allowed. The behavior of both models is analyzed mathematically and by means of numerical examples. It is shown that from a manufacturer perspective, the first model is preferred over the traditional (Q,r) model. However, it poses a threat for the long term business relationship with the customer because the service level deteriorates, and for the implications that early shipments have on the customer inventory. The behavior of the second model is strictly related to the problem being addressed. Its merits with respect to the traditional and the "early shipment" model are discussed. This discussion is centered on the coefficient of variation of the lead-time demand, the ratio (IC/pi), and the location of the supplier. A final model which is a hybrid of the previous two shipping policies is developed.
The models developed in the course of this research are generalizations of the traditional (Q,r) model
Preliminary Experience With the Use of Electromagnetic Navigation for the Diagnosis of Peripheral Pulmonary Nodules and Enlarged Mediastinal Lymph Nodes
Electromagnetic navigation is a new technique that can be
used with bronchoscopy to obtain samples of small peripheral
nodular lesions and enlarged mediastinal lymph nodes. It is
very versatile in that it enables both transbronchial biopsies
and fine-needle aspiration to be performed. We describe
2 cases in which navigation with the superDimension/
Bronchus system combined with traditional diagnostic
techniques facilitated a definitive diagnosis by bronchoscopy.
Electromagnetic navigation can obviate the need for more
invasive diagnostic procedures such as surgery, thus saving
time and money and avoiding complications
Improvisation in times of pandemic, a reason for reflection
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
has been one of the most significant health crises worldwide in the
last decades. This new pandemic has brought to light the strengths
and weaknesses of current health care systems worldwide, even in
countries that pride themselves on being at the forefront in terms
of clinical, scientific, and technological capacity and development.
Crises such as these are also opportunities to reflect and learn.
Coronavirus disease 2019 (COVID-19) has provided us with several
valuable lessons that involve the whole spectrum of medical
practice: human, scientific, technical, and social
Programa de entrenamiento en habilidades sociales con alumnos de educación primaria
En esta comunicación nos centramos en el entrenamiento de las habilidades sociales, así como su enseñanza y aprendizaje. En este trabajo se presentan las diferentes sesiones diseñadas para entrenar este tipo de habilidades llevadas a la práctica con niños de educación primaria de dos centros educativos de la Ciudad Autónoma de Melilla. Gracias a las características de la población intercultural de esta ciudad, nos interesa conocer los efectos de este entrenamiento en función del origen cultural de los alumnos.Eje: Educación primaria: experiencias educativasRed de Universidades con Carreras en Informática (RedUNCI
Implementation of a virtual sensor on a hot dip galvanizing line for zinc coating thickness estimation
Trasplante pulmonar
A lung transplant is usually the final therapeutic
option for patients with respiratory insufficiency. In
spite of the many advances in immunology and the
management of complications, mortality and morbidity
associated with this transplant are far higher than
with others. Acute rejection is an almost universal
problem in the first year, while obliterative bronchitis
reduces long term survival. Respiratory infections
also play a significant role in the complications associated
with lung transplants due to the constant
exposure of the graft to the outside. However, the
success of this therapeutic option, which basically
depends on a suitable selection of donor and recipient,
are evident, above all with respect to quality of
life
Tobacco use worldwide: Legislative efforts to curb consumption
Tobacco smoking is recognized as a major preventable cause of disease worldwide and is linked to 6
million deaths annually, 30% of which are due to cancer. The negative health consequences of smoking
currently represent one of the greatest public health challenges. Secondhand smoke, declared carcinogenic
by the International Agency for Research on Cancer in 2004, is also a major source of morbidity and
premature death in nonsmokers, particularly children. Negative health effects associated with exposure to
secondhand smoke have been well documented and include lung cancer, cardiovascular disease, asthma, and
other respiratory diseases. International and national policies to implement cost-effective strategies to
curtail smoking will have a significant impact on population health and will protect nonsmokers. Effective
interventions, such as a combination of smoke-free laws, tobacco price increases, easy access to tobacco
cessation treatments, and anti-tobacco media campaigns, should continue. Reducing tobacco use would be
a major step towards the goal of decreasing health disparities by 2030 as 80% of the projected tobaccorelated deaths will occur in low- and middle-income countries
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