scholarly journals Ecophysiology of avian migration in the face of current global hazards

2012 ◽  
Vol 367 (1596) ◽  
pp. 1719-1732 ◽  
Author(s):  
Marcel Klaassen ◽  
Bethany J. Hoye ◽  
Bart A. Nolet ◽  
William A. Buttemer
Keyword(s):  
Global Change ◽  
Migratory Birds ◽  
High Energy ◽  
Change Processes ◽  
Negative Consequences ◽  
Long Distance ◽  
Physiological Limits ◽  
The Face ◽  
Abiotic And Biotic Factors ◽  
The Impact

Long-distance migratory birds are often considered extreme athletes, possessing a range of traits that approach the physiological limits of vertebrate design. In addition, their movements must be carefully timed to ensure that they obtain resources of sufficient quantity and quality to satisfy their high-energy needs. Migratory birds may therefore be particularly vulnerable to global change processes that are projected to alter the quality and quantity of resource availability. Because long-distance flight requires high and sustained aerobic capacity, even minor decreases in vitality can have large negative consequences for migrants. In the light of this, we assess how current global change processes may affect the ability of birds to meet the physiological demands of migration, and suggest areas where avian physiologists may help to identify potential hazards. Predicting the consequences of global change scenarios on migrant species requires (i) reconciliation of empirical and theoretical studies of avian flight physiology; (ii) an understanding of the effects of food quality, toxicants and disease on migrant performance; and (iii) mechanistic models that integrate abiotic and biotic factors to predict migratory behaviour. Critically, a multi-dimensional concept of vitality would greatly facilitate evaluation of the impact of various global change processes on the population dynamics of migratory birds.

METHODS FOR PROTECTING THE EQUIPMENT OF CELLULAR (MOBILE) CONNECTION FROM ELECTROMAGNETIC IMPACT

2021 ◽  
Vol 335 (1) ◽  
pp. 81-89
Author(s):  
Zh. S. Abdimuratov ◽  
Zh. D. Manbetova ◽  
M. N. Imankul ◽  
K. S. Chezhimbayeva ◽  
A. Zh. Sagyndikova
Keyword(s):  
High Frequency ◽  
Electromagnetic Compatibility ◽  
Negative Impact ◽  
High Energy ◽  
Base Station ◽  
Electromagnetic Spectrum ◽  
Negative Consequences ◽  
External Interference ◽  
Extremely High Frequency ◽  
The Impact

Under electromagnetic impact (EMI) of a sufficient level, temporary disruption of functioning, processing, transmission and storage of information in cellular equipment is possible. Possible problems of electromagnetic compatibility (EMC) of a mobile phone and a base station (BS) of cellular connection under the influence of electromagnetic radiation (EMR) from other sources and their negative impact on functioning are considered. The energy of the HF electromagnetic field (EMF) after passing through the protective case can affect the devices of shielded radio electronic equipment (REE), therefore, the possible negative consequences of the impact of high-energy EMF on the REE are described. Possible negative consequences under certain conditions from the influence of the skin-effect, the effects of electrostatic discharge and electromagnetic pulses on electronic devices are given. It is shown that the constructional method of protecting REE from the effects of external electromagnetic factors consists in reducing the collected and transmitted EMF energy by improving the design, placement and installation of equipment. Components of some vendors for 5G systems that are resistant to external interference are given, and the possibilities for reducing the radiation level of a cell phone are noted. The necessity of an integrated approach to solving EMC problems is substantiated, which consists in the use of structural, circuitry and structural-functional methods of EMC provision. The new 5G (Fifth Generation) standard will operate at higher operating frequencies compared to previous generations. Due to the workload of the electromagnetic spectrum at frequencies below 6 GHz, 5G networks will be based on wireless radio access systems operating at frequencies of 30–100 GHz, that is, in the lower band of the extremely high frequency range EHF (Extremely High Frequency), 30–300 GHz.

scholarly journals EARLY-LIFE MILITARY EXPOSURES AND HEALTH AMONG OLDER VETERANS: THE BUFFERING EFFECT OF PSYCHOLOGICAL RESILIENCE

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S320-S320
Author(s):  
Miles G Taylor ◽  
Stephanie Ureña ◽  
Dawn Carr ◽  
Stella N Min
Keyword(s):  
Functional Impairment ◽  
Early Life ◽  
Military Training ◽  
Mail Survey ◽  
Later Life ◽  
Psychological Resilience ◽  
Negative Consequences ◽  
The Face ◽  
Life Course Framework ◽  
The Impact

Abstract Objectives Drawing on the life course framework and theoretical concept of resilience, we examine the impact of early-life service-related exposures (SREs) on later-life functional impairment trajectories among older U.S. male veterans. We conceptualize resilience as a psychological resource potentially moderating the lasting negative consequences of traumatic military exposures. Method Using the 2013 Veterans Mail Survey linked to the Health and Retirement Study 2006–2014 Leave Behind Questionnaire and RAND Data File (v.N), we estimate latent growth curve models of functional impairment trajectories. Results SRE to death has a persistent positive effect on functional limitations and activities of daily living limitations. Psychological resilience significantly moderates this association, such that veterans maintaining higher levels of resilience in the face of adverse exposures have considerably less functional impairment over time compared to their counterparts with low levels of resilience. Discussion Our findings point to the importance of psychological resilience in later life, especially within the realm of traumas occurring in early life. We discuss implications for current military training programs, stressing the importance of research considering individual resources and processes that promote adaptation in the face of adverse life events.

scholarly journals Long-distance migratory birds threatened by multiple independent risks from global change

2018 ◽  
Vol 8 (11) ◽  
pp. 992-996 ◽  
Author(s):  
Damaris Zurell ◽  
Catherine H. Graham ◽  
Laure Gallien ◽  
Wilfried Thuiller ◽  
Niklaus E. Zimmermann
Keyword(s):  
Global Change ◽  
Migratory Birds ◽  
Long Distance

scholarly journals Silver linings of the COVID-19 lockdown in New Zealand

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0249678
Author(s):  
Matthew Jenkins ◽  
Janet Hoek ◽  
Gabrielle Jenkin ◽  
Philip Gendall ◽  
James Stanley ◽  
...  
Keyword(s):  
New Zealand ◽  
Well Being ◽  
Social Consequences ◽  
Negative Consequences ◽  
Post Traumatic Growth ◽  
The Face ◽  
Post Traumatic ◽  
Qualitative Responses ◽  
The Impact ◽  
Mental Well Being

The COVID-19 pandemic has caused significant disruption, distress, and loss of life around the world. While negative health, economic, and social consequences are being extensively studied, there has been less research on the resilience and post-traumatic growth that people show in the face of adversity. We investigated New Zealanders’ experiences of benefit-finding during the COVID-19 pandemic and analysed qualitative responses to a survey examining mental well-being during the New Zealand lockdown. A total of 1175 of 2010 eligible participants responded to an open-ended question probing ‘silver linings’ (i.e., positive aspects) they may have experienced during this period. We analysed these qualitative responses using a thematic analysis approach. Two thirds of participants identified silver linings from the lockdown and we developed two overarching themes: Surviving (coping well, meeting basic needs, and maintaining health) and thriving (self-development, reflection, and growth). Assessing positive as well as negative consequences of the pandemic provides more nuanced insights into the impact that New Zealand’s response had on mental well-being.

scholarly journals METHODS FOR PROTECTING THE EQUIPMENT OF CELLULAR (MOBILE) CONNECTION FROM ELECTROMAGNETIC IMPACT

2021 ◽  
Vol 335 (1) ◽  
pp. 81-89
Author(s):  
Zh. S. Abdimuratov ◽  
Zh. D. Manbetova ◽  
M. N. Imankul ◽  
K. S. Chezhimbayeva ◽  
A. Zh. Sagyndikova
Keyword(s):  
High Frequency ◽  
Electromagnetic Compatibility ◽  
Negative Impact ◽  
High Energy ◽  
Base Station ◽  
Electromagnetic Spectrum ◽  
Negative Consequences ◽  
External Interference ◽  
Extremely High Frequency ◽  
The Impact

Under electromagnetic impact (EMI) of a sufficient level, temporary disruption of functioning, processing, transmission and storage of information in cellular equipment is possible. Possible problems of electromagnetic compatibility (EMC) of a mobile phone and a base station (BS) of cellular connection under the influence of electromagnetic radiation (EMR) from other sources and their negative impact on functioning are considered. The energy of the HF electromagnetic field (EMF) after passing through the protective case can affect the devices of shielded radio electronic equipment (REE), therefore, the possible negative consequences of the impact of high-energy EMF on the REE are described. Possible negative consequences under certain conditions from the influence of the skin-effect, the effects of electrostatic discharge and electromagnetic pulses on electronic devices are given. It is shown that the constructional method of protecting REE from the effects of external electromagnetic factors consists in reducing the collected and transmitted EMF energy by improving the design, placement and installation of equipment. Components of some vendors for 5G systems that are resistant to external interference are given, and the possibilities for reducing the radiation level of a cell phone are noted. The necessity of an integrated approach to solving EMC problems is substantiated, which consists in the use of structural, circuitry and structural-functional methods of EMC provision. The new 5G (Fifth Generation) standard will operate at higher operating frequencies compared to previous generations. Due to the workload of the electromagnetic spectrum at frequencies below 6 GHz, 5G networks will be based on wireless radio access systems operating at frequencies of 30–100 GHz, that is, in the lower band of the extremely high frequency range EHF (Extremely High Frequency), 30–300 GHz.

Climate change and maladaptive wing shortening in a long-distance migratory bird

The Auk ◽  
2020 ◽  
Vol 137 (3) ◽  
Author(s):  
Carolina Remacha ◽  
César Rodríguez ◽  
Javier de la Puente ◽  
Javier Pérez-Tris
Keyword(s):  
Natural Selection ◽  
Global Change ◽  
Wing Length ◽  
Migratory Birds ◽  
Migratory Bird ◽  
Phenotypic Change ◽  
Correlated Response ◽  
Summer Drought ◽  
Response To Selection ◽  
Long Distance

Abstract Contemporary phenotypic trends associated with global change are widely documented, but whether such trends always denote trait optimization under changed conditions remains obscure. Natural selection has shaped the wings of long-distance migratory birds to minimize the costs of transport, and new optimal wing shapes could be promoted by migration patterns altered due to global change. Alternatively, wing shape could vary as a correlated response to selection on other traits favored in a changing environment, eventually moving away from the optimal shape for migration and increasing transport costs. Data from 20 yr of monitoring 2 Common Nightingale (Luscinia megarhynchos) populations breeding in central Spain, where environmental conditions for breeding have deteriorated during recent decades due to increased summer drought, show that birds have reduced wing length relative to body size over the period 1995–2014. However, long-winged nightingales survived their first round-trip migration better, and the shorter the average wing length of individuals, the stronger the survival-associated natural selection favoring longer wings. Maladaptive short wings may have arisen because the mortality costs of migration are outweighed by reproductive benefits accrued by short-winged nightingales in these populations. Assuming that the phenotypic integration of morphological and reproductive adaptations of migratory birds has a genetic basis, we hypothesize that the maladaptive trend towards shorter wings may be a correlated response to selection for moderate breeding investment in drying habitat. Our results provide evidence that contemporary phenotypic change may deviate average trait values from their optima, thereby increasing our understanding of the ecological constraints underpinning adaptation to rapid global change.

scholarly journals Analytical method for establishing indentation rolling resistance

2018 ◽  
Vol 29 ◽  
pp. 00001
Author(s):  
Lech Gładysiewicz ◽  
Martyna Konieczna
Keyword(s):  
Rolling Resistance ◽  
Experimental Tests ◽  
Travel Speed ◽  
High Energy ◽  
Operating Conditions ◽  
New Method ◽  
Long Distance ◽  
Indentation Rolling Resistance ◽  
Belt Conveyors ◽  
The Impact

Belt conveyors are highly reliable machines able to work in special operating conditions. Harsh environment, long distance of transporting and great mass of transported martials are cause of high energy usage. That is why research in the field of belt conveyor transportation nowadays focuses on reducing the power consumption without lowering their efficiency. In this paper, previous methods for testing rolling resistance are described, and new method designed by authors was presented. New method of testing rolling resistance is quite simple and inexpensive. Moreover it allows to conduct the experimental tests of the impact of different parameters on the value of indentation rolling resistance such as core design, cover thickness, ambient temperature, idler travel frequency, or load value as well. Finally results of tests of relationship between rolling resistance and idler travel frequency and between rolling resistance and idler travel speed was presented.

scholarly journals GPAs, PCATs, and Coupons: Wilting Quality in Pharmacy School Admissions and the Impact on Pharmacy Faculty

2020 ◽  
Vol 11 (3) ◽  
pp. 20
Author(s):  
Sara Thompson
Keyword(s):  
At Risk ◽  
Pharmacy Education ◽  
Responsible Leadership ◽  
Negative Consequences ◽  
Faculty Governance ◽  
Article Type ◽  
Pharmacy Profession ◽  
The Face ◽  
Faculty Mentorship ◽  
The Impact

Introduction: The number of available seats in US pharmacy schools has reached unprecedented numbers as applications are on the decline.  A combination of forces signals that admissions to pharmacy school are becoming less selective. Commentary: The conflict of balancing a need to fill the incoming class while maintaining selectivity is a growing problem in pharmacy education. Faculty may notice changes in the student quality and ultimately, program and graduate quality. Pressure from administration hinders faculty governance with negative consequences that impact faculty morale and the profession as a whole.  Maintaining a firm position in the face of reduced applications is challenging but necessary if we are to protect the students we seek to support as faculty and stewards of the pharmacy profession. Implications: Faculty governance is at risk as pressure exists to admit less-prepared students into programs. Faculty must advocate for responsible leadership by initiating dialogue on admissions and selectivity. Furthermore, faculty mentorship programs need a new level of discussion that includes analysis and understanding of this paradigm in pharmacy academia.    Article Type: Commentary

Crabby’s Reef - Using games to bring people closer to the issue of ocean acidification

2021 ◽  
Author(s):  
Christina C. Roggatz ◽  
Christopher J. Skinner
Keyword(s):  
Climate Change ◽  
Ocean Acidification ◽  
Negative Consequences ◽  
Marine Animals ◽  
Long Distance ◽  
The Public ◽  
Marine Life ◽  
Raising Awareness ◽  
Long Time ◽  
The Impact

<p>Ocean acidification is often referred to as climate change’s hidden evil twin. As the world’s oceans partly absorb the carbon dioxide that humans are pumping into the planet’s atmosphere, the oceans’ pH decreases, making the water more acidic. This comes with a range of negative consequences, one of them being the recently uncovered impairment of the sense of smell of marine animals like fishes and crabs.</p><p>Awareness of ocean acidification, including its impacts on marine life, however, is low amongst the public. It is something that is viewed as remote to peoples’ lives, happening a long distance away and not for a long time into the future. It is important we take action now as a society to curb climate change and reduce the potential impacts of ocean acidification. Raising awareness and helping to make an emotional connection to the issue is a first step on this journey.</p><p>In <em>Crabby’s Reef</em> we use the power of gaming to enable players to experience the impact of this invisible and abstract process of ocean acidification. Inspired by classic arcade games, it puts players into the metaphorical shoes of Crabby, the crab. They navigate daily life on the ocean floor, guiding Crabby through the maze-like reef, seeking food and avoiding predatory octopuses who would make Crabby dinner. With each new level, you are transported to a more acidic future, your senses dampened by blurring the screen, reflecting Crabby’s loss of ability to smell the food.</p><p>With life getting harder, we ask how long can you survive?</p><p>Play the game here - <em>https://seriousgeo.games/activities/crabbysreef/</em></p>

scholarly journals Extrinsic And Intrinsic Motivators Of Customer Participation In Compliance Dependent Services

2011 ◽  
Vol 2 (11) ◽  
Author(s):  
Tiffany Barnett White ◽  
Gail Ayala Taylor ◽  
Stephanie Dellande
Keyword(s):  
Goal Attainment ◽  
Debt Management ◽  
Customer Participation ◽  
Message Content ◽  
Negative Consequences ◽  
Persuasive Messages ◽  
Face To Face ◽  
Customer Involvement ◽  
The Face ◽  
The Impact

Research on customer participation has focused primarily on the customers participatory role in service creation during the face-to-face service exchange (Bateson 1989; Bowen 1986; Chase 1978; Kelley, Donnelly, and Skinner 1990; Lovelock and Young 1979; and Mills, Chase, and Margulies 1983) however customer involvement often extends beyond the face-to-face exchange. This is especially the case with compliance dependent services (CDS). CDS are services that require customer participation with his or her service delivery role while within the service organization and once away from the service facility to ensure goal attainment and customer satisfaction. Examples of CDS include dental care, weight loss programs, preventive auto maintenance, education, exercise programs, health care programs (diabetes, hypertension), prenatal care, long-term financial planning, debt management programs, and smoking cessation programs.In an early CDS study, Dellande (1999) found motivation to be the most important customer attribute in gaining customer compliance. In this research we further our understanding of the role of motivation by studying the impact of persuasive provider communication, an extrinsic customer motivator, on intrinsic customer compliance motivation. One important characteristic of persuasive messages that influences their effectiveness is how they are framed. Among other factors, effective persuasive messages require comprehension and retention, yielding and behavior in accordance with the message content (McGuire 1966). Specifically, existing research suggests that behavior is affected by the extent to which messages emphasize the potentially negative consequences of failing to engage in a given behavior relative to a message in which the possible beneficial (i.e., positive) consequences of engaging in that action are emphasized (Roberson and Rogers 1988, Tykocinski et. al, 1994). We explore this distinction in the dental compliance service context. We specifically examine how the manner in which written compliance-related communications are framed influences consumers intended compliance behaviors.

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