Search results for "Effects"
showing 10 items of 2634 documents
The heritability of depressive symptoms: multiple informants and multiple measures
2002
Background: Earlier research suggests large rater differences in heritability estimates of children's depressive symptoms in the context of significant age and sex-limitation effects. Methods: With data from an ongoing, population-based twin-family study, we estimated genetic and environmental influences on children's depression with models allowing for sex-specific effects. Our assessments of twins included self-reports and ratings made by their classmate peers, their parents and their teachers, allowing estimates of genetic and environmental effects with data from different informants. Model-fitting used maximum likelihood estimation of log-transformed data from a sample of 1,366 11- and …
Safety of endovascular treatment in acute stroke patients taking oral anticoagulants
2017
International journal of stroke 12(4), 412-415 (2017). doi:10.1177/1747493016677986
Components and connections of the circadian timing system in mammals
1996
The circadian timing system is a neural network consisting of the hypothalamic suprachiasmatic nucleus, aided by the retina, other hypothalamic nuclei, autonomic regions of the spinal cord, sympathetic ganglia and the pineal gland. Extensive studies conducted over the last two decades have unravelled the principal items of its functional neuroanatomy. The system is responsible for the generation of the circadian rhythm, its synchronization by environmental factors such as light, and its mediation with respect to morphological, physiological and biochemical parameters of mammals that exhibit distinct alterations throughout the 24-h cycle. This review characterizes the brain sites involved an…
Equilibrium mergers in a composite good industry with efficiencies
2014
This paper studies equilibrium merging behavior in composite good industries. Component producers face the option to either merge with a similar component producer (horizontal merger) or a complementary one (complementary merger) of a composite good. Focusing only on strategic reasons, complementary mergers arise at equilibrium only when composite goods are very differentiated while horizontal mergers otherwise. Next, when efficiencies are considered, the level of marginal cost saving required for a horizontal merger in a composite industry to result in a non- increase in the upward price pressure index (UPPI) is greater as compared with the one in a regular industry. This result can be use…
Adverse effects of heavy cannabis use: even plants can harm the brain.
2020
The spread of laws legalising cannabis for medicinal or recreational use has been accompanied by more relaxed attitudes towards cannabis. Data from the United States show that in states that have legalised cannabis, prevalence of daily, weekly, and monthly cannabis use was 11.3%, 18.3%, and 25.0% respectively, whereas in countries where it is still illegal, it was lower (7.4%, 11.6%, and 16.8% respectively). Evidence indicates a trend of increase among adolescents, a particular vulnerable category for the initiation of substance use. In parallel, we have seen the concentration of THC (D-9-tetrahydrocannabinol) in the cannabis sold both in the United States and in Europe rising and those typ…
Suborbital climate variability during Marine Isotopic Stage 5 in the central Mediterranean basin: evidence from calcareous plankton record
2006
Abstract New faunal and floral records from Ocean Drilling Project Hole 963A, resolved at ∼80-year spacing, provide evidence of suborbital scale climate variability in the central Mediterranean Sea throughout Marine Isotope Stage (MIS) 5. Cold events in the central Mediterranean Sea, indicated by low abundances of warm species and high abundances of cold species, are also evident in a planktonic foraminifera paleoclimatic curve. They have been linked to NGRIP Greenland ice core “C” events and appear correlative with similar sub-millennial climate fluctuations identified in the North Atlantic region and in the Alboran Basin (Westernmost Mediterranean). Low-resolution benthic and planktonic O…
Legal questions on financial market abuse
2015
Purpose – The purpose of this study is to underline the impact that globalization of financial markets has on national punishment policies. The US financial crisis has strongly affected consumers’ lives, but the focus of this research is on the national provisions against the illegal and unfair behaviour of economic actors, with special regard to a phenomenon that took place abroad, but whose effects came to light in many different countries. Design/methodology/approach – Different methodological approaches, both deductive and inductive, are combined in the present paper, together with comparative and philosophical insights on national Court decisions and scholar writings. Findings – As Eu…
University–industry partnerships for the provision of R&D services
2015
Technology Transfer Offices (TTOs) are the main institutions responsible for the establishment of university–industry partnerships. R&D contracts exemplify the indirect mechanisms through which enterprises and universities collaborate on a win–win basis. This study addresses organizational and institutional aspects that act as drivers for the establishment of successful university–industry partnerships. First, a series of regression models explain the determinants of R&D contracts. These models include two main dimensions: the university and the technology transfer office. Second, further analysis empirically explores whether universities in regions with a favorable environment enjoy greate…
Geographic, cultural, and psychic distance to foreign markets in the context of small and new ventures
2015
Abstract More often than one might expect, small and new ventures, which already suffer from few resources and a lack of industry legitimacy, take on the additional uncertainties of entry into foreign markets. Some of these foreign entries involve countries that are geographically distant and culturally different from the firm's home country, making foreign market entry all the more difficult and uncertain. Recent studies have criticized prior academic approaches to understanding these difficulties. Insights may be limited if one uses merely the concept of distance and looks primarily for main effects. Entry by new and small ventures into distant foreign markets is complex, and the factors …
Differential Effects of Bilateral Norms on SMEs’ Export Relationships: A Dynamic Perspective
2017
Prior research has established the pivotal role of bilateral norms in relationship marketing, identifying them as effective relational governance mechanisms that firms can use to manage their international alliances with overseas intermediaries. Unfortunately, few studies have examined differential effects of specific norms on positive and negative behaviors, let alone norms’ effectiveness in the harsh export context of resource-constrained small and medium-sized enterprises (SMEs). To address these gaps, the authors explicate the effects of three norms (continuity expectations, equity, and cooperation) on both dysfunctional and productive behaviors of foreign distributors. Using two conse…