We use mutual fund flows as a measure of individual investor sentiment for different stocks, and find that high sentiment predicts low future returns. Fund flows are dumb money–by reallocating across ...different mutual funds, retail investors reduce their wealth in the long run. This dumb money effect is related to the value effect: high sentiment stocks tend to be growth stocks. High sentiment also is associated with high corporate issuance, interpretable as companies increasing the supply of shares in response to investor demand.
The quantitative knowledge of heavy nuclei’s partonic structure is currently limited to rather large values of momentum fraction x-robust experimental constraints below x∼10−2 at low resolution scale ...Q2 are particularly scarce. This is in sharp contrast to the free proton’s structure which has been probed in Deep Inelastic Scattering (DIS) measurements down to x∼10−5 at perturbative resolution scales. The construction of an electron-ion collider (EIC) with a possibility to operate with a wide variety of nuclei, will allow one to explore the low-x region in much greater detail. In the present paper we simulate the extraction of the nuclear structure functions from measurements of inclusive and charm reduced cross sections at an EIC. The potential constraints are studied by analyzing simulated data directly in a next-to-leading order global fit of nuclear Parton Distribution Functions based on the recent EPPS16 analysis. A special emphasis is placed on studying the impact an EIC would have on extracting the nuclear gluon parton distribution function, the partonic component most prone to nonlinear effects at low Q2. In comparison to the current knowledge, we find that the gluon parton distribution function can be measured at an EIC with significantly reduced uncertainties.
Review of photovoltaic technologies El Chaar, L.; lamont, L.A.; El Zein, N.
Renewable & sustainable energy reviews,
06/2011, Letnik:
15, Številka:
5
Journal Article
Recenzirano
This paper is a full review on the development of existing photovoltaic (PV) technology. It highlights the four major current types of PV: crystalline, thin film, compound and nanotechnology. The aim ...of continuous development of PV technology is not only to improve the efficiency of the cells but also to reduce production cost of the modules, hence make it more feasible for various applications. Moreover, such variety in technology is needed to enhance the deployment of solar energy for a greener and cleaner environment. Devices such as space PV cell technology were also described and the progress in this field is expanding. In addition, a quick overview of the application of PV installations is described.
In this manuscript, the author describes their unexpected grieving process in dealing with the death of Kobe Bryant. In particular, the author focuses on the mourning process on tragic celebrity ...deaths and the relationship between celebrity, mortality, and the ways in which people make sense of themselves through celebrity figures. The author attempts to highlight the complicated nature of mourning celebrity figures who are not personally known, especially those that have a complicated history in the public eye. The author moves into and through their own personal experiences as a Black man in order to make sense of public mourning, race, and the Black Masculinity of Kobe Bryant.
Anthropogenic noise impacts are pervasive across taxa, ecosystems and the world. Here, we experimentally test the hypothesis that protecting vulnerable habitats from noise pollution can improve ...animal reproductive success. Using a season-long field manipulation with an established model system on the Great Barrier Reef, we demonstrate that limiting motorboat activity on reefs leads to the survival of more fish offspring compared to reefs experiencing busy motorboat traffic. A complementary laboratory experiment isolated the importance of noise and, in combination with the field study, showed that the enhanced reproductive success on protected reefs is likely due to improvements in parental care and offspring length. Our results suggest noise mitigation could have benefits that carry through to the population-level by increasing adult reproductive output and offspring growth, thus helping to protect coral reefs from human impacts and presenting a valuable opportunity for enhancing ecosystem resilience.
By way of autoethnographic poetry, I reflect on my personal struggles related to racial consciousness as I embarked on a journey—from America, across the Atlantic, and eventually, to the Indian Ocean ...off the East Coast of (mother) Africa. The story of my apparent racial crisis is viewed through multiple lenses, as I infuse the pivotal readings of The Black Atlantic, Lose Your Mother, The Collected Poems of Langston Hughes, and personal experiences both in autoethnographic and in poetic form.
Electron-Ion Collider: The next QCD frontier Accardi, A; Albacete, J L; Anselmino, M ...
European physical journal. A, Hadrons and nuclei,
09/2016, Letnik:
52, Številka:
9
Journal Article
Recenzirano
Odprti dostop
This White Paper presents the science case of an Electron-Ion Collider (EIC), focused on the structure and interactions of gluon-dominated matter, with the intent to articulate it to the broader ...nuclear science community. It was commissioned by the managements of Brookhaven National Laboratory (BNL) and Thomas Jefferson National Accelerator Facility (JLab) with the objective of presenting a summary of scientific opportunities and goals of the EIC as a follow-up to the 2007 NSAC Long Range plan. This document is a culmination of a community-wide effort in nuclear science following a series of workshops on EIC physics over the past decades and, in particular, the focused ten-week program on “Gluons and quark sea at high energies” at the Institute for Nuclear Theory in Fall 2010. It contains a brief description of a few golden physics measurements along with accelerator and detector concepts required to achieve them. It has been benefited profoundly from inputs by the users’ communities of BNL and JLab. This White Paper offers the promise to propel the QCD science program in the US, established with the CEBAF accelerator at JLab and the RHIC collider at BNL, to the next QCD frontier.
Recent equity carve‐outs in U.S. technology stocks appear to violate a basic premise of financial theory: identical assets have identical prices. In our 1998–2000 sample, holders of a share of ...company A are expected to receivexshares of company B, but the price of A is less thanxtimes the price of B. A prominent example involves 3Com and Palm. Arbitrage does not eliminate this blatant mispricing due to short‐sale constraints, so that B is overpriced but expensive or impossible to sell short. Evidence from options prices shows that shorting costs are extremely high, eliminating exploitable arbitrage opportunities.
On August 26, 2020, the sporting world experienced a monumental return of athlete activism when National Basketball Association (NBA) players executed a boycott of the playoffs as a result of ...heightened frustration after video evidence of the unjust police shooting of Jacob Blake in Kenosha, Wisconsin, surfaced on social media on August 23, 2020. NBA players (followed by WNBA players) decided to cease play and enter into discussions with league officials to garner a deal that intertwined the promotion of the Black Lives Matter movement with that of the (W)NBA playoffs; players demanded that the (W)NBA playoffs ground zero for Black Lives Matter promotion and social justice initiatives. As the “fifth wave” of athlete activists stormed the sporting world, their demand for dialogic practices is starkly different than the pioneers of the past, while also aiming to accomplish the general mission of the Heritage—racial equality through athlete activism. This article aims to analyze the new frontier of athlete activism through a Critical Race Theory lens by analyzing the ways in which the implementation of dialogic practices led to one of the most iconic waves of athlete activism in sport history.
Mycobacteria are able to enter into a state of non-replication or dormancy, which may result in their chronic persistence in soil, aquatic environments, and permissive hosts. Stresses such as ...nutrient deprivation and hypoxia provide environmental cues to enter a persistent state; however, a clear definition of the mechanism that mycobacteria employ to achieve this remains elusive. While the concept of sporulation in mycobacteria is not novel, it continues to spark controversy and challenges our perceptions of a non-replication. We investigated the potential role of sporulation in one-year old broth cultures of Mycobacterium subsp. paratuberculosis (MAP). We show that dormant cultures of MAP contain a mix of vegetative cells and a previously unknown morphotype resembling a spore. These spore-like structures can be enriched for using sporulating media. Furthermore, purified MAP spore forms survive exposure to heat, lysozyme and proteinase K. Heat-treated spores are positive for MAP 16SrRNA and IS900 . MAP spores display enhanced infectivity as well as maintain acid-fast characteristics upon germination in a well-established bovine macrophage model. This is the first study to demonstrate a new MAP morphotype possessing spore-like qualities. Data suggest that sporulation may be a viable mechanism by which MAP accomplishes persistence in the host and/or environment. Thus, our current understanding of mycobacterial persistence, pathogenesis, epidemiology and rational drug and vaccine design may need to be reevaluated.
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Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
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