269 research outputs found
The substitution effect from the profit function in consumption: Expressions from the marshallian, hicksian, and frischian demand functions
In the context of the optimizing behaviour assumption of individuals (Becker, 1976), three types of demand functions appear: Marshallian, Hicksian, and Frischian functions (Sproule, 2013). The Substitution Effect (SE) is a relevant concept, with our short paper developing two alternative theoretical expressions, specifically focusing on the Profit Function in Consumption and the Frischian functions. I address the fact that these demand functions with constant marginal utility of income play a very relevant role in the inter-temporal context
Daily feelings of US workers and commuting time
Introduction: Millions of individuals commute every day in the US. Despite commuting has been shown to have negative consequences for workers, no evidence has been about how commuting is related to feelings in other episodes. We analyzed the relationship between the feelings reported by American workers throughout the day and the time devoted to commuting.
Methods: We used the Well-Being Module of the American Time Use Survey for the years 2010, 2012, and 2013, and analized the relationship between commuting duration and the feelings reported (e.g, . happiness, sadness, stress, fatigue and pain) in both commuting and non-commuting episodes.
Results: We found that more time spent on the daily commute was related to higher levels of fatigue and stress during commuting, while also being associated with higher levels of sadness and fatigue during activities of child care. In particular, we found that a 1% increase in the time devoted to commuting during the episode was related to increases of 12 percent and 13 percent of a standard deviation for stress and fatigue, while a 1% increase in the time devoted to commuting during the day was related to increases of 5 percent and 7 percent of one standard deviation in the levels of sadness and fatigue during child care activities.
Conclusions: Our results indicated that longer commutes may be related to higher levels of stress and fatigue of workers, which may in turn affect the quality of the time parents devote to caring for their children
On the Relationship between Violent Conflict and Wages in Colombia
We analyse how forced displacements caused by violent conflict are related to the wages of workers in Colombia. Using data from the Quality of Life Survey (2011â2014), we analyse the differences in wages between those forced by violence to move to other regions, and those who moved for other reasons. We apply Propensity Score Matching techniques to compare workers from the two groups, finding that forced displacement is related to decreases of between 10 and 29 per cent in the wages of males, and between 18 and 37 per cent in the wages of females, relative to their counterparts. Thus, forced displacements are related to poorer labour market outcomes in terms of wages
Mente y cerebro en la Neurociencia contemporĂĄnea. Una aproximaciĂłn a su estudio interdisciplinar.
El imponente desarrollo de
la Neurociencia en los ultimos decenios
ba puesto en evidencia su necesidad
de recurrir a la interdisciplinariedad
para abordar los desaffos que se le
presentan. Entre ellos se encuentran
aquellos que se refieren a cuestiones
decisivas para la comprensidn del
bombre. En este artfculo se defiende
que, para abordarlas con eficacia, es
preciso ampliar la cooperacidn entre
las ciencias mas alld del ambito de las
disciplinas experimentales. Como
ilustracidn de esta tesis, tras una introduccidn
sobre la importancia de la
Neurociencia en nuestros dfas, se
afronta uno de los aspectos mds relevantes
para la comprensidn del papel
que juega el cerebro en la vida y la
conducta del bombre: el problema de
la conciencia. La exposicion se estructura
senalando el marco en que se
plantea este problema, para despues explicar sumariamente cdmo lo ban
tratado la Neurociencia y la Filosoffa.
Finalmente, se presentan algunas sugerencias
para desarrollar de forma
fructffera un estudio interdisciplinar
que permita a cada una de las ciencias
implicadas realizar adecuadamente su
propia aportaciĂłn
Neurociencia y libertad. Una aproximaciĂłn interdisciplinar
Para muchos neurocientĂficos
y filĂłsofos de la mente, el fenĂłmeno
de la libertad puede ser explicado
totalmente por la Neurociencia. En
este trabajo se intenta mostrar que un
estudio cuidadoso de la situaciĂłn y
perspectivas de la Neurociencia revela
hasta qué punto esta tesis es problemåtica.
Para ello, exploramos algunos
aspectos relacionados con el conocimiento,
la integraciĂłn afectivo-emocional,
las funciones de la memoria y la autoconciencia, que se vinculan al
ejercicio del libre albedrĂo. Señalamos,
en primer lugar, que las nuevas técnicas
de neuroimagen no han conseguido
mostrar el funcionamiento de nuestro
cerebro en su conjunto y de manera
unitaria, ni desde el punto de vista cognitivo
ni en el campo de la afectividad
o la memoria. Esto invita a considerar
las conclusiones de sus anĂĄlisis como
altamente hipotéticas. A continuación,
nos adentramos en el fenĂłmeno de la
autoconciencia, decisivo para indagar
sobre la autodeterminaciĂłn y el libre
albedrĂo. Se muestra aquĂ tambiĂ©n cĂłmo
este aspecto de nuestra constituciĂłn
psicolĂłgica excede los recursos de
una neurobiologĂa reduccionista. Se
concluye, por tanto, que aunque el
ejercicio de la libertad humana precisa
del adecuado funcionamiento de nuestra
constituciĂłn cerebral, esto no excluye
el componente de inmaterialidad
que supone conocer y decidir
Tiempo, conciencia y libertad: consideraciones en torno a los experimentos de B.Libet y colaboradores
This paper discusses the experiment of Libet and his colleagues on conscious decisions
and others inspired in it. The discussion concentrates especially on two tapies. Firstly,
the relationship between consciousness and time, and second, the idea of freedom which is
presupposed in those experiments
GEICAM Guidelines for the Management of Patients with Breast Cancer During the COVID-19 Pandemic in Spain
Breast cancer (BC) is the most common cancer in women in
Spain. During the COVID-19 pandemic caused by the SARSCoV-2 virus, patients with BC still require timely treatment
and follow-up; however, hospitals are overwhelmed with
infected patients and, if exposed, patients with BC are at
higher risk for infection and serious complications if infected.
Thus, health care providers need to evaluate each BC treatment and in-hospital visit to minimize pandemic-associated
risks while maintaining adequate treatment efficacy. Here we
present a set of guidelines regarding available options for BC
patient management and treatment by BC subtype in the
context of the COVID-19 pandemic. Owing to the lack of evidence about COVID-19 infection, these recommendations
are mainly based on expert opinion, medical organizationsâ
and societiesâ recommendations, and some published evidence. We consider this a useful tool to facilitate medical
decision making in this health crisis situation we are facing
An Integrated TCGA Pan-Cancer Clinical Data Resource to Drive High-Quality Survival Outcome Analytics
For a decade, The Cancer Genome Atlas (TCGA) program collected clinicopathologic annotation data along with multi-platform molecular profiles of more than 11,000 human tumors across 33 different cancer types. TCGA clinical data contain key features representing the democratized nature of the data collection process. To ensure proper use of this large clinical dataset associated with genomic features, we developed a standardized dataset named the TCGA Pan-Cancer Clinical Data Resource (TCGA-CDR), which includes four major clinical outcome endpoints. In addition to detailing major challenges and statistical limitations encountered during the effort of integrating the acquired clinical data, we present a summary that includes endpoint usage recommendations for each cancer type. These TCGA-CDR findings appear to be consistent with cancer genomics studies independent of the TCGA effort and provide opportunities for investigating cancer biology using clinical correlates at an unprecedented scale. Analysis of clinicopathologic annotations for over 11,000 cancer patients in the TCGA program leads to the generation of TCGA Clinical Data Resource, which provides recommendations of clinical outcome endpoint usage for 33 cancer types
Water uptake by Annona diversifolia Saff. and A. purpurea Moc. & sessé ex dunal seeds (Annonaceae)
Measurement of the View the tt production cross-section using eÎŒ events with b-tagged jets in pp collisions at âs = 13 TeV with the ATLAS detector
This paper describes a measurement of the inclusive top quark pair production cross-section (ÏttÂŻ) with a data sample of 3.2 fbâ1 of protonâproton collisions at a centre-of-mass energy of âs = 13 TeV, collected in 2015 by the ATLAS detector at the LHC. This measurement uses events with an opposite-charge electronâmuon pair in the final state. Jets containing b-quarks are tagged using an algorithm based on track impact parameters and reconstructed secondary vertices. The numbers of events with exactly one and exactly two b-tagged jets are counted and used to determine simultaneously ÏttÂŻ and the efficiency to reconstruct and b-tag a jet from a top quark decay, thereby minimising the associated systematic uncertainties. The cross-section is measured to be:
ÏttÂŻ = 818 ± 8 (stat) ± 27 (syst) ± 19 (lumi) ± 12 (beam) pb,
where the four uncertainties arise from data statistics, experimental and theoretical systematic effects, the integrated luminosity and the LHC beam energy, giving a total relative uncertainty of 4.4%. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. A fiducial measurement corresponding to the experimental acceptance of the leptons is also presented
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