632 research outputs found
Safe Storage Gun Laws: Accidental Deaths, Suicides and Crime
It is frequently assumed that safe storage gun laws reduce accidental gun deaths and total suicides, while the possible impact on crime rates are ignored. However, given existing work on the adverse impact of other safety laws, such as safety caps for storing medicine, even the very plausible assumption of reduced accidental gun deaths cannot be taken for granted. Our paper analyzes both state and county data spanning nearly twenty years, and we find no support that safe storage laws reduce either juvenile accidental gun deaths or suicides. Instead, these storage requirements appear to impair people's ability to use guns defensively. Because accidental shooters also tend to be the ones most likely to violate the new law, safe storage laws increase violent and property crimes against low risk citizens with no observable offsetting benefit in terms of reduced accidents or suicides. During the first five full years after the passage of the safe storage laws, the group of fifteen states that adopted these laws faced an annual average increase of over 300 more murders, 3,860 more rapes, 24,650 more robberies, and over 25,000 more aggravated assaults. On average, the annual costs borne by victims averaged over $2.6 billion as a result of lost productivity, out-of-pocket expenses, medical bills, and property losses.gun control, crime, suicide, accidental death
Abortion and Crime: Unwanted Children and Out-of-Wedlock Births
Abortion may prevent the birth of ''unwanted'' children, who would have relatively small investments in human capital and a higher probability of crime. On the other hand, some research suggests that legalizing abortion increases out-of-wedlock births and single parent families, which implies the opposite impact on investments in human capital and thus crime. The question is: what is the net impact? We find evidence that legalizing abortion increased murder rates by around about 0.5 to 7 percent. Previous estimates are shown to suffer from not directly linking the cohorts who are committing crime with whether they had been born before or after abortion was legal.crime, abortion, out-of-wedlock briths, human capital
Bullying in Graduate School: Its Nature and Effects
Does bullying exist in graduate school? If so, what does it look like? Semi-structured interviews were conducted with 22 graduate students from various departments at a medium-sized, Midwestern U.S. university. Grounded Theory methodology (Glaser, 1978) was utilized to gain insight into the terms and behaviors students used to define bullying in the graduate school context. Through constant comparative analysis (Stern, 1980), categories emerged that provided an understanding of the different perspectives inherent in a bully system, and the meanings attached to bullying behaviors. These findings can provide administrators and counselors with the information necessary to conduct preventative training to help students interact in a more professional, inclusive manner
Applications of satellite data relay to problems of field seismology
A seismic signal processor was developed and tested for use with the NOAA-GOES satellite data collection system. Performance tests on recorded, as well as real time, short period signals indicate that the event recognition technique used is nearly perfect in its rejection of cultural signals and that data can be acquired in many swarm situations with the use of solid state buffer memories. Detailed circuit diagrams are provided. The design of a complete field data collection platform is discussed and the employment of data collection platforms in seismic network is reviewed
Letters and records of the dissenting congregations: David Crosley, Cripplegate and Baptist Church life
The original publication is available at www.springerlink.comInternational audienceThis chapter examines the status and function of letters in manuscript records of dissenting Churches of the post-Toleration years, concentrating on the correspondence of the Baptist Church of Cripplegate. The letters are placed in the context of controversies about Church government and discipline and the rhetoric used during the scandal caused by the excommunication of its Northern minister David Crosley for drinking, lying and adultery is assessed. In doing so, the chapter pays particular attention to the epistolary exchanges between metropolitan and provincial congregations and to what they reveal about conceptions of the Baptist ministry
Human Cytomegalovirus: detection of congenital and perinatal infection in Argentina
BACKGROUND: Human cytomegalovirus (CMV) is one of the most commonly found agents of congenital infections. Primary maternal infection is associated with risk of symptomatic congenital diseases, and high morbidity is frequently associated with very low birth weight. Neonates with asymptomatic infection develop various sequelae during infancy. This is the first Argentine study performed in neonates with congenital and postnatal HCMV infection. The purpose of this study was to evaluate the performance of the polymerase chain reaction (PCR) technique with different pairs of primers, to detect cytomegalovirus isolated in tissue cultures and directly in urine and dried blood spot (DBS) specimens. Results were compared with IgM detection. METHODS: The study was performed between 1999 and 2001 on routine samples in the Laboratory. A total of 61 urine and 56 serum samples were selected from 61 newborns/infants, 33 patients whose samples were analyzed during the first two to three weeks of life were considered congenital infections; the remaining 28 patients whose samples were taken later than the third week were grouped as perinatal infections, although only in 4 the perinatal transmission of infection was determined unequivocally Cytomegalovirus diagnosis was made by isolating the virus from urine samples in human foreskin fibroblast cells. Three different primer pairs directed to IE, LA and gB genes were used for the HCMV PCR assay in viral isolates. Subsequently, PCR and nested PCR (nPCR) assays with gB primers were performed directly in urine and in 11 samples of dried blood spot (DBS) on Guthrie Card, these results were then compared with serology. RESULTS: The main clinical manifestations of the 33 patients with congenital infection were purpura, jaundice, hepatomegaly and anaemia. Three patients presented low birth weight as single symptom, 10, intracranial calcifications, and 2, kidney failure. In the 28 patients grouped as with perinatal infection, anaemia, hepatosplenomegaly and enzymatic alteration were predominant, and 4 patients were HIV positive. The primers used to amplify the gB region had a PCR positivity rate of 100%, whereas those that amplified IE and LA regions had a PCR positivity rate of 54% and 61% respectively, in CMV isolates. Amplification by PCR of urine samples (with no previous DNA extraction), using primers for the gB region, detected 34/61 positive samples. Out of the 33 samples from patients with congenital infection, 24 (73%) were positive. When nPCR was used in these samples, all were positive, whereas in the remaining 28 patients, two negative cases were found. Cytomegalovirus DNA detection in 11 samples was also carried out in DBS: 7 DBS samples were positive and 4 were negative. CONCLUSIONS: Primers directed to the gB fragment region were the best choice for the detection of CMV DNA in positive isolates. In congenital infections, direct PCR in urine was positive in a high percentage (73%) of samples; however, in patients grouped as with perinatal infection only 36% of the cases were positive. With n-PCR, total sample positivity reached 97%. PCR technique performed in DBS allowed identifying congenital infection in four patients and to be confirmed in 3. These results show the value of nPCR for the detection of all cases of CMV infection. The assay offers the advantage that it may be performed within the normal working day and provides reliable results in a much shorter time frame than that required for either traditional tissue culture or the shell-viral assay
Comparison of the Effects of Linear and Non-Linear Resistance Training Periodization on Morphofunctional Capacity of Subjects with Different Fitness Levels: A Systematic Review
International Journal of Exercise Science 12(4): 666-690, 2019. Resistance training (RT) is recognized as an efficient method to improve muscle strength, power, hypertrophy; all are fundamental components of functional health and quality of life. Variables of RT such as volume, intensity, density, rest interval, duration, exercise order and selection, training frequency, and periodization models (i.e. linear periodization (LP), reverse linear periodization (RLP), block periodization (BP), and nonlinear periodization (NLP): undulating periodization (UP) and weekly undulating periodization (WUP)) are manipulated to potentiate musculoskeletal adaptations. The aim of the present study was to conduct a systematic review of studies comparing different periodization models on morphofunctional capacity in adults with different levels of physical activity. Databases from Ebsco, PubMed and Web of Science were searched between January 2007 and June 2017 using the following descriptors: RT; strength training; LP; UP; daily UP; NLP. From the 4337 articles found, 11 met the inclusion criteria. The mean number of sets in each RT model was 3 ± 1 for both (LP and UP), mean repetitions used was 10 ± 5, and the mean inter-set rest interval was 2 ± 1 minutes . The mean number of exercises was 7 ± 3 with training duration ranging from 45 to 90 minutes. The number of sets, repetitions, rest interval, and load intensity were minimally detailed in 12% of articles evaluated. In conclusion, RT programs that used LP and UP presented discrepant results, which precludes a consensus at this time. Most characteristics and differences between studies reported here should be used in future experimental designs to improve our understanding about periodization models
Lunar Outgassing, Transient Phenomena and The Return to The Moon, I: Existing Data
Herein the transient lunar phenomena (TLP) report database is subjected to a
discriminating statistical filter robust against sites of spurious reports, and
produces a restricted sample that may be largely reliable. This subset is
highly correlated geographically with the catalog of outgassing events seen by
the Apollo 15, 16 and Lunar Prospector alpha-particle spectrometers for
episodic Rn-222 gas release. Both this robust TLP sample and even the larger,
unfiltered sample are highly correlated with the boundary between mare and
highlands, as are both deep and shallow moonquakes, as well as Po-210, a
long-lived product of Rn-222 decay and a further tracer of outgassing. This
offers another significant correlation relating TLPs and outgassing, and may
tie some of this activity to sagging mare basalt plains (perhaps mascons).
Additionally, low-level but likely significant TLP activity is connected to
recent, major impact craters (while moonquakes are not), which may indicate the
effects of cracks caused by the impacts, or perhaps avalanches, allowing
release of gas. The majority of TLP (and Rn-222) activity, however, is confined
to one site that produced much of the basalt in the Procellarum Terrane, and it
seems plausible that this TLP activity may be tied to residual outgassing from
the formerly largest volcanic ffusion sites from the deep lunar interior. With
the coming in the next few years of robotic spacecraft followed by human
exploration, the study of TLPs and outgassing is both promising and imperiled.
We will have an unprecedented pportunity to study lunar outgassing, but will
also deal with a greater burden of anthropogenic lunar gas than ever produced.
There is a pressing need to study lunar atmosphere and its sources while still
pristine. [Abstract abridged.]Comment: 35 pages, 3 figures, submitted to Icarus. Other papers in series
found at http://www.astro.columbia.edu/~arlin/TLP
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