scholarly journals Association of the Timing of School Closings and Behavioral Changes With the Evolution of the Coronavirus Disease 2019 Pandemic in the US

2021 ◽  
Author(s):  
Frederick J. Zimmerman ◽  
Nathaniel W. Anderson
Keyword(s):  
Behavioral Changes ◽  
School Closings ◽  
The Us

scholarly journals Response of shallow subterranean freshwater amphipods to habitat drying

2018 ◽  
Vol 28 ◽  
pp. 15-28 ◽  
Author(s):  
Heather Gilbert ◽  
Jenna Keany ◽  
David C. Culver
Keyword(s):  
Surface Water ◽  
Behavioral Changes ◽  
The Us ◽  
Freshwater Amphipods ◽  
Wetland Species ◽  
Dry Out ◽  
Subterranean Species ◽  
Habitat Drying

The ability of three amphipods that occupy shallow subterranean habitats in the lower Potomac Basin of the US (hypotelminorheic), which often dry out seasonally, to withstand desiccation by burrowing in clay was investigated. Both Crangonyxshoemakeri, a wetland species, and Stygobromustenuis, a subterranean species, burrowed in clay in the laboratory after surface water was removed. Gammarusminus, a spring species, did not. All three species exhibited behavioral changes as the habitat dried out.

scholarly journals Differential Impacts of COVID-19 Lockdowns on PM2.5 across the United States

2021 ◽  
Author(s):  
Kevin L. Chen ◽  
Lucas R.F. Henneman ◽  
Rachel C. Nethery
Keyword(s):  
United States ◽  
Large Scale ◽  
Social Economic ◽  
The United States ◽  
Behavioral Changes ◽  
The Us ◽  
Confounding Adjustment ◽  
Business As Usual ◽  
Relationship Of ◽  
The Relationship

ABSTRACTThe COVID-19 pandemic has induced large-scale social, economic, and behavioral changes, presenting a unique opportunity to study how air pollution is affected by unprecedented societal shifts. At each of 455 PM2.5 monitoring sites across the United States, we conduct a causal inference analysis to determine the impacts of COVID-19 interventions and behavioral changes (“lockdowns”) on PM2.5 concentrations. Our approach allows for rigorous confounding adjustment and provides highly spatio-temporally resolved effect estimates. We find that, with the exception of the Southwest, most of the US experienced increases in PM2.5 during lockdown, compared to the concentrations expected under business-as-usual. To investigate possible drivers of this phenomenon, we use regression to characterize the relationship of many environmental, geographical, meteorological, mobility, and socioeconomic factors with the lockdown-attributable changes in PM2.5. Our findings have immense environmental policy relevance, suggesting that large-scale mobility and economic activity reductions may be insufficient to substantially and uniformly reduce PM2.5.

scholarly journals COVID-19 and Psychosocial Changes: Results From the National Health and Aging Trends Study (NHATS)

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 566-566
Author(s):  
Laura Samuel ◽  
Anthony Ong
Keyword(s):  
Older Adults ◽  
Technology Use ◽  
Social Connectedness ◽  
Individual Characteristics ◽  
Behavioral Changes ◽  
Sampling Weights ◽  
Related Factors ◽  
The Us ◽  
Nationally Representative ◽  
Improve Health

Abstract The COVID-19 pandemic likely altered many aspects of daily life for older adults, including social connectedness, technology use, financial resources and hopefulness. This symposium examines these exposures and changes during the COVID-19 pandemic and tests their associations with health and related factors. Analyses are all conducted among a nationally representative sample of U.S. adults aged ≥65 years who participated in the NHATS COVID-19 supplement, which was a mail-in survey with participant and proxy respondents conducted between June and October of 2020. Additional NHATS participant data collected between 2011 and 2019 was used to account for individual characteristics before COVID-19, including demographic, socioeconomic and relevant health characteristics. Sampling weights were applied to analyses to account for study design and non-response so that inferences can be drawn to the US population of adults aged ≥65 years. This symposium will present results from five COVID-19 pandemic focused studies that examine the associations between 1) financial changes and health, 2) loneliness and behavioral changes, 3) hopefulness with function, sleep and loneliness, 4) technology use and mental health, and 5) predictors of technology use. These results offer insights into the mechanisms that influence health during the COVID-19 pandemic. Results have clinical, policy and public health implications because they can inform the development of interventions, programs and policies with potential to improve health and health care and advance health equity for older adults.

The Eleventh Circuit Holds that Agreements in which Pharmaceutical Companies Pay Generic Companies Not to Compete May be Valid

2004 ◽  
Vol 32 (1) ◽  
pp. 181-184
Author(s):  
Amy Garrigues
Keyword(s):  
Pharmaceutical Companies ◽  
Court Decisions ◽  
Patent Holder ◽  
Trial Court ◽  
Court Of Appeals ◽  
The Us ◽  
Antitrust Laws ◽  
Per Se ◽  
Appeals Court ◽  
Two Sides

On September 15, 2003, the US. Court of Appeals for the Eleventh Circuit held that agreements between pharmaceutical and generic companies not to compete are not per se unlawful if these agreements do not expand the existing exclusionary right of a patent. The Valley DrugCo.v.Geneva Pharmaceuticals decision emphasizes that the nature of a patent gives the patent holder exclusive rights, and if an agreement merely confirms that exclusivity, then it is not per se unlawful. With this holding, the appeals court reversed the decision of the trial court, which held that agreements under which competitors are paid to stay out of the market are per se violations of the antitrust laws. An examination of the Valley Drugtrial and appeals court decisions sheds light on the two sides of an emerging legal debate concerning the validity of pay-not-to-compete agreements, and more broadly, on the appropriate balance between the seemingly competing interests of patent and antitrust laws.

Supervision: A Case Study

1977 ◽  
Vol 8 (4) ◽  
pp. 256-263
Author(s):  
Roberta Chapey ◽  
Geraldine Chapey
Keyword(s):  
Organizational Communication ◽  
Behavioral Changes ◽  
Personal Problems ◽  
Clinically Significant

Occasionally, it is the responsibility of a supervisor to help a staff speech clinician resolve professional and or personal problems that interfere with the delivery of quality services. To deal with this situation, the supervisor must be equipped with the techniques and procedures for effective organizational communication. This article presents a case study in which a speech clinician demonstrated irresponsibility in various job areas. The supervisor’s philosophy and the procedures used in managing these problems are presented. The behavioral changes suggest that the supervisor’s interventive procedures were clinically significant and warrant further investigation.

The Biological Clock and Sleep in the Elderly

2006 ◽  
Vol 19 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Myriam Juda ◽  
Mirjam Münch ◽  
Anna Wirz-Justice ◽  
Martha Merrow ◽  
Till Roenneberg
Keyword(s):  
Circadian Rhythms ◽  
Biological Clock ◽  
The Elderly ◽  
Early Morning ◽  
Behavioral Changes ◽  
Older Age ◽  
Age Related ◽  
Theoretical Considerations ◽  
Sleep Difficulties ◽  
Circadian Biology

Abstract: Among many other changes, older age is characterized by advanced sleep-wake cycles, changes in the amplitude of various circadian rhythms, as well as reduced entrainment to zeitgebers. These features reveal themselves through early morning awakenings, sleep difficulties at night, and a re-emergence of daytime napping. This review summarizes the observations concerning the biological clock and sleep in the elderly and discusses the documented and theoretical considerations behind these age-related behavioral changes, especially with respect to circadian biology.

Relation of Statistically Significant, Abnormal, and Typical WAIS-R VIQ-PIQ Discrepancies to Full Scale IQs

2000 ◽  
Vol 16 (2) ◽  
pp. 107-114 ◽  
Author(s):  
Louis M. Hsu ◽  
Judy Hayman ◽  
Judith Koch ◽  
Debbie Mandell
Keyword(s):  
Graphical Method ◽  
The United States ◽  
Full Scale ◽  
True Score ◽  
Absolute Value ◽  
Normative Population ◽  
The Us ◽  
The Mean ◽  
And Performance ◽  
Quadratic Models

Summary: In the United States' normative population for the WAIS-R, differences (Ds) between persons' verbal and performance IQs (VIQs and PIQs) tend to increase with an increase in full scale IQs (FSIQs). This suggests that norm-referenced interpretations of Ds should take FSIQs into account. Two new graphs are presented to facilitate this type of interpretation. One of these graphs estimates the mean of absolute values of D (called typical D) at each FSIQ level of the US normative population. The other graph estimates the absolute value of D that is exceeded only 5% of the time (called abnormal D) at each FSIQ level of this population. A graph for the identification of conventional “statistically significant Ds” (also called “reliable Ds”) is also presented. A reliable D is defined in the context of classical true score theory as an absolute D that is unlikely (p < .05) to be exceeded by a person whose true VIQ and PIQ are equal. As conventionally defined reliable Ds do not depend on the FSIQ. The graphs of typical and abnormal Ds are based on quadratic models of the relation of sizes of Ds to FSIQs. These models are generalizations of models described in Hsu (1996) . The new graphical method of identifying Abnormal Ds is compared to the conventional Payne-Jones method of identifying these Ds. Implications of the three juxtaposed graphs for the interpretation of VIQ-PIQ differences are discussed.

Age Differences in Eye Movements During Reading: Degenerative Problems or Compensatory Strategy?

2019 ◽  
Vol 24 (4) ◽  
pp. 297-311
Author(s):  
José David Moreno ◽  
José A. León ◽  
Lorena A. M. Arnal ◽  
Juan Botella
Keyword(s):  
Eye Movements ◽  
Eye Movement ◽  
Meta Analysis ◽  
Age Groups ◽  
Behavioral Changes ◽  
Aging Effects ◽  
Movement Data ◽  
Sentence Reading ◽  
The Difference ◽  
Eye Movements During Reading

Abstract. We report the results of a meta-analysis of 22 experiments comparing the eye movement data obtained from young ( Mage = 21 years) and old ( Mage = 73 years) readers. The data included six eye movement measures (mean gaze duration, mean fixation duration, total sentence reading time, mean number of fixations, mean number of regressions, and mean length of progressive saccade eye movements). Estimates were obtained of the typified mean difference, d, between the age groups in all six measures. The results showed positive combined effect size estimates in favor of the young adult group (between 0.54 and 3.66 in all measures), although the difference for the mean number of fixations was not significant. Young adults make in a systematic way, shorter gazes, fewer regressions, and shorter saccadic movements during reading than older adults, and they also read faster. The meta-analysis results confirm statistically the most common patterns observed in previous research; therefore, eye movements seem to be a useful tool to measure behavioral changes due to the aging process. Moreover, these results do not allow us to discard either of the two main hypotheses assessed for explaining the observed aging effects, namely neural degenerative problems and the adoption of compensatory strategies.

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