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This article provides 12-month prevalence rates of youth exposure to websites which encourage self-harm or suicide and examines whether such exposure is related to thoughts of self-harm and thoughts of suicide in the past 30 days. Data were collected via telephone from a nationally representative survey of 1560 Internet-using youth, ages 10-17 residing in the United States. One percent (95% CI: 0.
The binding of native biglycan and decorin to pepsin-extracted collagen VI from human placenta was examined by solid phase assay and by measurement of surface plasmon resonance in the BIAcore(TM)2000 system. Both proteoglycans exhibited a strong affinity for collagen VI with dissociation constants (K(D)) of approximately 30 nm. Removal of the glycosaminoglycan chains by chondroitinase ABC digestio
The Sámi people in Scandinavia have experienced a long history of discrimination, oppression, neglect, ridicule, and theft. Some scholars compare the history of the Sámi with that of the American Indian population. Today the Sámi who live in Sweden, Norway and Finland, together with the Sámi in Russia have managed to improve their situation through concerted efforts, collaboration with one another
The transport behavior of lambda-DNA (48 kbp) in fused silica nanoslits is investigated upon application of electrical fields of different strengths. The slit dimensions are 20 nm in height, 3 microm in width, and 500 microm in length. With fields of 30 kV/m or below, the molecules move fluently through the slits, while at higher electrical fields, the DNA molecules move intermittently, resulting
This study analyzes (a) the relation between injury severities, the age of the bicyclist and the speed environment at accident locations (mean travel speed of the traffic flow involved in the accident) where a bicyclist was struck by a motorized vehicle and (b) how these relations differ from those for struck pedestrians. Accident data from Sweden for the years 2004-2008 was used to identify accid
One of the most promising and critical application of vehicular ad hoc networks (VANETs) is improvement of the road traffic safety. Currently there is a growing belief that putting an 802.11-like radio into road vehicles could help the drivers to travel more safely. Although research in this field is in preliminary stage, some simple implementations are quite promising; to the best of our knowledg
Introduction Cerebrospinal fluid collection by lumbar puncture (LP) is performed in the diagnostic workup of several neurological brain diseases. Reluctance to perform the procedure is among others due to a lack of standards and guidelines to minimize the risk of complications, such as post-LP headache or back pain. Methods We provide consensus guidelines for the LP procedure to minimize the risk
Laptops and smartphones are now challenging the traditional boarders of work and have contributed to new ways of combining work and other parts of life. Both time and room dimensions have been resolved or taken new forms through the new information and communication technology. Questions like when and where you are supposed to, or can or want to work are likewise important to companies and employeLaptops and smartphones are now challenging the traditional boarders of work and have contributed to new ways of combining work and other parts of life. Both time and room dimensions have been resolved or taken new forms through the new information and communication technology. Questions like when and where you are supposed to, or can or want to work are likewise important to companies and employe
This thesis concerns the numerical simulations and modelling of the flow structure and scalar transport in stirred reactors. For this Large Eddy Simulations (LES) have been used. The flow situation in a stirred reactor includes several flow phenomena that are not well predicted by "standard" two-equation models, e.g. swirl, stagnation points and anisotropic turbulence. Also, using LES one can obta
A vertical temperature stratification normally exists in rooms during the heat-ing season in cold climates. An expression of the gradient in apartments heated by hydronic radiator heating systems with exhaust ventilation has ear-lier been developed assuming a dependency of the outdoor temperature. The expression was used by a public real estate owner when re-calculating meas-ured indoor temperaturA vertical temperature stratification normally exists in rooms during the heat-ing season in cold climates. An expression of the gradient in apartments heated by hydronic radiator heating systems with exhaust ventilation has ear-lier been developed assuming a dependency of the outdoor temperature. The expression was used by a public real estate owner when re-calculating meas-ured indoor temperatur
How did human symbolic behavior evolve? Dating up to about 100,000 y ago, the engraved ochre and ostrich eggshell fragments from the South African Blombos Cave and Diepkloof Rock Shelter provide a unique window into presumed early symbolic traditions of Homo sapiens and how they evolved over a period of more than 30,000 y. Using the engravings as stimuli, we report five experiments which suggest t
This contribution aims to deal with innovation policy from the perspective of the systems of innovation approach. The intention is to address basic principles related to national, regional or local as well as sectoral systems of innovation and the policy implications emerging from these. Hence, there will be a very strong emphasis on policy in what follows. However, it is essential, of course, tha
Homogeneous charge compression ignition (HCCI) is a potentially attractive operating mode for stationary natural gas engines. Increasing demand for efficient, clean burning engines for electrical power generation provides an opportunity to utilize HCCI combustion if several inherent difficulties can be overcome. Fuel composition, particularly the higher hydrocarbon content (ethane, propane, and bu
The present communication concerns the potential of current surveillance programs for understanding the epidemiology of sexually transmitted infections. The often limited knowledge or the negligence of such infections both among health providers and in the general population, and the non-existence of laboratory services or poor utilization thereof, for example the lack of sampling material, lack o
The Transfermium Working Group (TWG) was set up in 1986 under the joint auspices of the International Union of Pure and Applied Chemistry (IUPAC) and the International Union of Pure and Applied Physics (IUPAP). Its conclusions, duly endorsed by IUPAC and IUPAP, were published in the following three reports:1. Criteria that must be satisfied for the discovery of a new chemical element to be recogni
The fact that machines play an increasingly more important role in our daily life is hardly new to anyone. Robots help us with a wide range of things in our daily lives, the smartphone perhaps being the best illustration of this state of affairs. The debate among experts in the field of artificial intelligence (AI) is divided: is the rapid development good for humanity, or is it bad (Müller and Bo
Computational tools are widely used for interpreting variants detected in sequencing projects. The choice of these tools is critical for reliable variant impact interpretation for precision medicine and should be based on systematic performance assessment. The performance of the methods varies widely in different performance assessments, for example due to the contents and sizes of test datasets.
This paper presents an empirical analysis of the relation between un-employment and macroeconomic performance. A strong correlation hasbeen pointed out before, but a crucial question is over what time-horizonthis holds. To the best of our knowledge, no previous cross-country studyhas shown that there is a long-run relationship between unemploymentand macroeconomic performance over a time-period th
Epilepsy is a chronic neurological disorder affecting more than 65 million people worldwide and manifested by recurrent unprovoked seizures. The unpredictability of seizures not only degrades the quality of life of the patients, but it can also be life-threatening. Modern systems monitoring elec-troencephalography (EEG) signals are being currently developed with the view to detect epileptic seizur
