791 research outputs found
The fantasy of wealth: Attracting college graduates into the workforce
The need for top talent is a critical factor towards the current and future success of organizations. Each year 1.5 million college students graduate and enter the largest generation of the workforce, Millennials. Therefore, it is imperative for companies to understand how to effectively attract the Millennial talent pool. A trend within organizational recruiting is for companies to provide more initiatives for organization\u27s stakeholders than just the triple bottom line. One type of initiative that is shown to be effective in recruiting from the general talent pool is Corporate Social Responsibility (CSR), which is an organization\u27s efforts towards obligations at different levels - economic, legal, environmental, and philanthropic - that affect their stakeholders. Evidence shows that CSR is most effective when job choice is high. However, research indicates that recent college graduates may have a lower level of job choice compared to more experienced applicants. This indicates Millennials may hold different values towards CSR recruitment messaging when compared to the general talent pool. Millennials seem to be attracted towards organizations that provide opportunities for quick career progression and competitive benefits and are willing to compromise their need to affect society to keep these opportunities. This suggests that Millennials, especially college students, ought to favor an employment situation which offers better economic CSR benefits. The proposed study aims to see if college students place more value on one CSR type, and if an organization will be viewed as a more attractive place to work when economic CSR is displayed on a corporate website as opposed to the other types of CSR when considering a job right out of college. The results of this study will allow organizations to understand how to effectively recruit and retain recently graduated college students in the Millennial talent pool
Instanton operators in five-dimensional gauge theories
This article is distributed under the terms of the Creative Commons
Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in
any medium, provided the original author(s) and source are creditedN.L. is supported in part by STFC grant ST/J002798/1. C.P. is a Royal Society Research Fellow.N.L. is supported in part by STFC grant ST/J002798/1. C.P. is a Royal Society Research Fellow.N.L. is supported in part by STFC grant ST/J002798/1. OPen Aceess funded by SCOAP
Matrix Models for Supersymmetric Chern-Simons Theories with an ADE Classification
We consider N=3 supersymmetric Chern-Simons (CS) theories that contain
product U(N) gauge groups and bifundamental matter fields. Using the matrix
model of Kapustin, Willett and Yaakov, we examine the Euclidean partition
function of these theories on an S^3 in the large N limit. We show that the
only such CS theories for which the long range forces between the eigenvalues
cancel have quivers which are in one-to-one correspondence with the simply
laced affine Dynkin diagrams. As the A_n series was studied in detail before,
in this paper we compute the partition function for the D_4 quiver. The D_4
example gives further evidence for a conjecture that the saddle point
eigenvalue distribution is determined by the distribution of gauge invariant
chiral operators. We also see that the partition function is invariant under a
generalized Seiberg duality for CS theories.Comment: 20 pages, 3 figures; v2 refs added; v3 conventions in figure 3
altered, version to appear in JHE
Dimensional analysis of MINMOD leads to definition of the disposition index of glucose regulation and improved simulation algorithm
BACKGROUND: Frequently Sampled Intravenous Glucose Tolerance Test (FSIVGTT) together with its mathematical model, the minimal model (MINMOD), have become important clinical tools to evaluate the metabolic control of glucose in humans. Dimensional analysis of the model is up to now not available. METHODS: A formal dimensional analysis of MINMOD was carried out and the degree of freedom of MINMOD was examined. Through re-expressing all state variable and parameters in terms of their reference scales, MINMOD was transformed into a dimensionless format. Previously defined physiological indices including insulin sensitivity, glucose effectiveness, and first and second phase insulin responses were re-examined in this new formulation. Further, the parameter estimation from FSIVGTT was implemented using both the dimensional and the dimensionless formulations of MINMOD, and the performances were compared utilizing Monte Carlo simulation as well as real human FSIVGTT data. RESULTS: The degree of freedom (DOF) of MINMOD was found to be 7. The model was maximally simplified in the dimensionless formulation that normalizes the variation in glucose and insulin during FSIVGTT. In the new formulation, the disposition index (Dl), a composite parameter known to be important in diabetes pathology, was naturally defined as one of the dimensionless parameters in the system. The numerical simulation using the dimensionless formulation led to a 1.5–5 fold gain in speed, and significantly improved accuracy and robustness in parameter estimation compared to the dimensional implementation. CONCLUSION: Dimensional analysis of MINMOD led to simplification of the model, direct identification of the important composite factors in the dynamics of glucose metabolic control, and better simulations algorithms
The ABCDEF's of Matrix Models for Supersymmetric Chern-Simons Theories
We consider N = 3 supersymmetric Chern-Simons gauge theories with product
unitary and orthosymplectic groups and bifundamental and fundamental fields. We
study the partition functions on an S^3 by using the Kapustin-Willett-Yaakov
matrix model. The saddlepoint equations in a large N limit lead to a constraint
that the long range forces between the eigenvalues must cancel; the resulting
quiver theories are of affine Dynkin type. We introduce a folding/unfolding
trick which lets us, at the level of the large N matrix model, (i) map quivers
with orthosymplectic groups to those with unitary groups, and (ii) obtain
non-simply laced quivers from the corresponding simply laced quivers using a
Z_2 outer automorphism. The brane configurations of the quivers are described
in string theory and the folding/unfolding is interpreted as the
addition/subtraction of orientifold and orbifold planes. We also relate the
U(N) quiver theories to the affine ADE quiver matrix models with a
Stieltjes-Wigert type potential, and derive the generalized Seiberg duality in
2 + 1 dimensions from Seiberg duality in 3 + 1 dimensions.Comment: 30 pages, 5 figure
Los factores de riesgo que ocurren con la consumación de pescado crudo y moluscos
U radu su prikazani biološki i kemijski rizici koji ugrožavaju zdravlje ljudi nakon konzumacije riba, rakova, školjkaša i njihovih proizvoda, sirovih, mariniranih ili nedovoljno toplinski obrađenih. Virusi, bakterije i njihovi toksini kao rizični čimbenici koji predstavljaju faktor onečišćenja proizvoda ribe i školjkaša imaju negativan utjecaj u prehrambenom lancu ljudi i predstavljaju zoonotski potencijal te uzrokuju bolesti koje se prenose konzumiranjem morskih proizvoda. Kao važnije uzročnike možemo istaknuti viruse (Norovirus i Hepatitis A), bakterije (rodovi Escherichia, Salmonella, Klebsiella, Edwardsiella, Yersinia, Proteus, Aerobacter, Citrobacter, Serratia, Providencia, Shigella), parazite, uzročnike zoonoza
(Opisthorchis felineus, Heterophyes heterophyes, Metagonimus yokogawai, Diphylobothrium latum, Anisakis spp.), biotoksine koji uzrokuju intoksikaciju u ljudi povezani su s konzumacijom školjkaša. Kada je riječ o kemijskim rizicima, zbog zaštite zdravlja potrošača normativnim propisima su navedene maksimalno dopuštene koncentracije metala u namirnicama. Kao najbitnije istkanuli smo arsen, živu, kadmij i olovo koji u morskoj sredini potječu od antropogenih izvora kao što su industrijski otpad te poljoprivredni otpad.The paper presents the biological and chemical risks that threaten human health after consumption of raw, marinated or insufficiently heat-treated fish, crustaceans, shellfish and the products thereof. Viruses, bacteria and their toxins as risk factors representing the contamination factor of fish and shellfish products have a negative impact in the human food chain, carry zoonotic potential and cause diseases transmitted by consumption of marine products. We can indicate as significant pathogens viruses (Norovirus and Hepatitis A), bacteria (genera Escherichia, Salmonella, Klebsiella, Edwardsiella, Yersinia, Proteus, Aerobacter, Citrobacter, Serratia, Providencia, Shigella), parasites, zoonotic agents (Opisthorchis felineus,
Heterophyes heterophyes, Metagonimus yokogawai, Diphyllobothrium latum, Anisakis spp.), while biotoxins that cause intoxication in humans are associated with the consumption of shellfish. When it comes to chemical risks, in order to protect the health of consumers, normative regulations specify the maximum permissible concentrations of metals in foods, the most important being arsenic, mercury, cadmium and lead which in the marine environment originate from anthropogenic sources such as industrial and agricultural waste.In der vorliegenden Arbeit wurden biologische und chemische Risiken dargestellt, die die Gesundheit der Menschen nach Verzehr von Fischen, Krebsen, Krebstieren und deren Erzeugnissen gefährden, die roh, mariniert oder nicht ausreichend wärmebehandelt wurden. Viren, Bakterien und deren Toxine üben als Risikofaktoren, die einen Faktor der Verseuchung von Fischen und Krebstieren darstellen, einen negativen Einfluss in der Nahrungskette der Menschen aus, stellen zoonotisches Potential dar und verursachen Krankheiten, die durch Verzehr von Meeresprodukten übertragen werden. Als wichtigere Verursacher können wir Viren (Norovirus und Hepatitis A), Bakterien (Gattungen Escherichia, Salmonella, Klebsiella,
Edwardsiella, Yersinia, Proteus, Aerobacter, Citrobacter, Serratia, Providencia, Shigella), Parasiten, Verursacher von Zoonosen (Opisthorchis felineus, Heterophyes heterophyes, Metagonimus yokogawai, Diphylobothrium latum, Anisakis spp.), Biotoxine hervorheben, die eine Vergiftung bei Menschen verursachen und mit dem Verzehr von Krebstieren zusammenhängen. Wenn es von chemischen Risiken die Rede ist, sind höchstzulässige
Konzentrationen von Metallen in Lebensmitteln durch normative Vorschriften zwecks Gesundheitsschutzes der Verbraucher angegeben worden.
Als wesentlichste Metalle haben wir Arsen, Quecksilber, Cadmium und Blei hervorgehoben, die im Meeresumfeld aus anthropogenen Quellen wie Industrieabfall und landwirtschaftlicher Abfall stammen.Nella tesi sono rappresentati i rischi biologici e chimici che minacciano la salute delle persone dopo la consumazione di pesce, granchi, molluschi e i loro prodotti, crudi, marinati oppure non sufficientemente cotti. I virus, i batteri e le loro tossine come agenti di rischio che rappresentano i prodotti di pesce e molluschi contaminati hanno un’influenza negativa nella catena alimentare delle persone e rappresentano un potenziale zootonico e causano malattie che vengono trasmesse consumando i prodotti di mare.
Uno dei fattori più importati sono i virus (Norovirus e Epatite A), i batteri (ceppi Escherichia, Salmonella, Klebsiella, Edwardsiella, Yersinia, Proteus, Aerobacter, Citrobacter, Serratia, Providencia, Shigella), i parassiti, gli agenti di zoonosi (Opisthorchis felineus, Heterophyes heterophyes, Metagonimus yokogawai, Diphylobothrium latum, Anisakis spp.), le biotossine che causano intossicazioni nelle persone sono collegati con la consumazione di molluschi. Quando si tratta di rischi chimici, per la tutela della salute dei consumatori sono elencate con delle disposizioni normative le concentrazioni massime dei metalli consentiti negli alimenti. Come più importanti, abbiamo messo in evidenza l’arsenio, il mercurio, il cadmio e il piombo, i quali, nel mare, provengono da fonti antropogeniche come i rifiuti industriali e agricoli.En este trabajo fueron mostrados los riesgos biológicos y químicos que ponen en peligro la salud de los humanos luego de consumar el pescado, los crustáceos, los moluscos y sus productos crudos, marinados o sin suficiente tratamiento térmico. Viruses, bacterias y sus toxinas son factores de riesgo o sea factores de contaminación de los productos de pescado y moluscos y como tales tienen una influencia negativa en la cadena trófica de los humanos, representan un potencial zoonótico y causan enfermedades transmitidas por la consumación de productos marinos. Se destacan como agentes causales los viruses (Norovirus y VHA), las bacterias (géneros de Escherichia, Salmonela, Klebisiella, Edwardsiella, Yersinia,
Proteus, Enterobacter, Citrobacter, Serratia, Providencia, Shigella), los parásitos, los agentes causales de zoonosis (Opisthorchis felineus, Heterophyes heterophyes, Metagonimus yokogawai, Diphylobothrium latum, Anisakis spp.) y los biotoxinas que causan intoxicación de humanos en correlación con la consumación de los moluscos. En cuanto a los riesgos químicos, fueron determinadas las concentraciones máximas permisibles de metales pesados en los alimentos para proteger la salud de los consumidores. Como relevantes destacamos arsénico, mercurio, cadmio y plomo que provienen de fuentes antropogénicas en el medio marino, por ejemplo como los desechos industriales y los residuos agrícolas
5d quivers and their AdS(6) duals
We consider an infinite class of 5d supersymmetric gauge theories involving
products of symplectic and unitary groups that arise from D4-branes at orbifold
singularities in Type I' string theory. The theories are argued to be dual to
warped AdS(6)x S4/Zn backgrounds in massive Type IIA supergravity. In
particular, this demonstrates the existence of supersymmetric 5d fixed points
of quiver type. We analyze the spectrum of gauge fields and charged states in
the supergravity dual, and find a precise agreement with the symmetries and
charged operators in the quiver theories. We also comment on other brane
objects in the supergravity dual and their interpretation in the field
theories.Comment: 29 pages, 15 figure
From Necklace Quivers to the F-theorem, Operator Counting, and T(U(N))
The matrix model of Kapustin, Willett, and Yaakov is a powerful tool for
exploring the properties of strongly interacting superconformal Chern-Simons
theories in 2+1 dimensions. In this paper, we use this matrix model to study
necklace quiver gauge theories with {\cal N}=3 supersymmetry and U(N)^d gauge
groups in the limit of large N. In its simplest application, the matrix model
computes the free energy of the gauge theory on S^3. The conjectured F-theorem
states that this quantity should decrease under renormalization group flow. We
show that for a simple class of such flows, the F-theorem holds for our
necklace theories. We also provide a relationship between matrix model
eigenvalue distributions and numbers of chiral operators that we conjecture
holds more generally. Through the AdS/CFT correspondence, there is therefore a
natural dual geometric interpretation of the matrix model saddle point in terms
of volumes of 7-d tri-Sasaki Einstein spaces and some of their 5-d
submanifolds. As a final bonus, our analysis gives us the partition function of
the T(U(N)) theory on S^3.Comment: 3 figures, 41 pages; v2 minor improvements, refs adde
5-dim Superconformal Index with Enhanced En Global Symmetry
The five-dimensional supersymmetric gauge theory with Sp(N)
gauge group and SO(2N_f) flavor symmetry describes the physics on N D4-branes
with D8-branes on top of a single O8 orientifold plane in Type I' theory.
This theory is known to be superconformal at the strong coupling limit with the
enhanced global symmetry for . In this work we calculate
the superconformal index on for the Sp(1) gauge theory by the
localization method and confirm such enhancement of the global symmetry at the
superconformal limit for to a few leading orders in the chemical
potential. Both perturbative and (anti)instanton contributions are present in
this calculation. For cases some issues related the pole structure of
the instanton calculation could not be resolved and here we could provide only
some suggestive answer for the leading contributions to the index. For the
Sp(N) case, similar issues related to the pole structure appear.Comment: 70 pages, references added, published versio
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