scholarly journals Impact of Temperature on Absorption Coefficient of Pure Seawater in the Blue Wavelengths Inferred from Satellite and In Situ Measurements

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Guomei Wei ◽  
Zhongping Lee ◽  
Xiuling Wu ◽  
Xiaolong Yu ◽  
Shaoling Shang ◽  
...  
Keyword(s):  
Absorption Coefficient ◽  
Chlorophyll Concentration ◽  
Ocean Color ◽  
Total Absorption ◽  
Laboratory Measurements ◽  
History Of ◽  
Phytoplankton Absorption ◽  
The Impact ◽  
The Relationship

There has been a long history of interest on how (if) the absorption coefficient of “pure” fresh water (afwλ) and “pure” seawater (aswλ) changes with temperature (T), yet the impact of T reported in the literature differs significantly in the blue domain. Unlike the previous studies based on laboratory measurements, we took an approach based on ~18 years (2002–2020) of MODIS ocean color and temperature measurements in the oligotrophic oceans, along with field measured chlorophyll concentration and phytoplankton absorption coefficient, to examine the relationship between T and the total absorption coefficient (aλ) at 412 and 443 nm. We found that the values of a412 and a443 in the summer are nearly flat (slightly decreasing) for the observed T range of ~19–27 °C. Since there are no detectable changes of chlorophyll during this period, the results suggest that T has a negligible impact on asw412 and asw443 in this T range. As a complement, the impact of salinity on afwλ was also evaluated using three independent determinations of aswλ and afwλ, where good agreements were found from these observations.

scholarly journals Performance evaluation of ocean color satellite models for deriving accurate chlorophyll estimates in the Gulf of Saint Lawrence

2014 ◽  
Vol 11 (6) ◽  
pp. 9299-9340
Author(s):  
M. Montes-Hugo ◽  
H. Bouakba ◽  
R. Arnone
Keyword(s):  
Chlorophyll Concentration ◽  
Ocean Color ◽  
Atmospheric Correction ◽  
Relative Bias ◽  
Wide Field ◽  
Absolute Bias ◽  
Analysis System ◽  
Data Analysis System ◽  
The Impact

Abstract. The understanding of phytoplankton dynamics in the Gulf of the Saint Lawrence (GSL) is critical for managing major fisheries off the Canadian East coast. In this study, the accuracy of two atmospheric correction techniques (NASA standard algorithm, SA, and Kuchinke's spectral optimization, KU) and three ocean color inversion models (Carder's empirical for SeaWiFS (Sea-viewing Wide Field-of-View Sensor), EC, Lee's quasi-analytical, QAA, and Garver- Siegel-Maritorena semi-empirical, GSM) for estimating the phytoplankton absorption coefficient at 443 nm (aph(443)) and the chlorophyll concentration (chl) in the GSL is examined. Each model was validated based on SeaWiFS images and shipboard measurements obtained during May of 2000 and April 2001. In general, aph(443) estimates derived from coupling KU and QAA models presented the smallest differences with respect to in situ determinations as measured by High Pressure liquid Chromatography measurements (median absolute bias per cruise up to 0.005, RMSE up to 0.013). A change on the inversion approach used for estimating aph(443) values produced up to 43.4% increase on prediction error as inferred from the median relative bias per cruise. Likewise, the impact of applying different atmospheric correction schemes was secondary and represented an additive error of up to 24.3%. By using SeaDAS (SeaWiFS Data Analysis System) default values for the optical cross section of phytoplankton (i.e., aph(443) = aph(443)/chl = 0.056 m2mg−1), the median relative bias of our chl estimates as derived from the most accurate spaceborne aph(443) retrievals and with respect to in situ determinations increased up to 29%.

Investigating the Relationship Between Self-Esteem and Stigma Among Young Adults With History of Suicide Attempts

Crisis ◽  
2016 ◽  
Vol 37 (4) ◽  
pp. 265-270 ◽  
Author(s):  
Meshan Lehmann ◽  
Matthew R. Hilimire ◽  
Lawrence H. Yang ◽  
Bruce G. Link ◽  
Jordan E. DeVylder
Keyword(s):  
Young Adults ◽  
Suicide Attempts ◽  
Self Esteem ◽  
High Risk Population ◽  
High Functioning ◽  
People With Mental Illness ◽  
History Of ◽  
The Individual ◽  
The Impact ◽  
The Relationship

Abstract. Background: Self-esteem is a major contributor to risk for repeated suicide attempts. Prior research has shown that awareness of stigma is associated with reduced self-esteem among people with mental illness. No prior studies have examined the association between self-esteem and stereotype awareness among individuals with past suicide attempts. Aims: To understand the relationship between stereotype awareness and self-esteem among young adults who have and have not attempted suicide. Method: Computerized surveys were administered to college students (N = 637). Linear regression analyses were used to test associations between self-esteem and stereotype awareness, attempt history, and their interaction. Results: There was a significant stereotype awareness by attempt interaction (β = –.74, p = .006) in the regression analysis. The interaction was explained by a stronger negative association between stereotype awareness and self-esteem among individuals with past suicide attempts (β = –.50, p = .013) compared with those without attempts (β = –.09, p = .037). Conclusion: Stigma is associated with lower self-esteem within this high-functioning sample of young adults with histories of suicide attempts. Alleviating the impact of stigma at the individual (clinical) or community (public health) levels may improve self-esteem among this high-risk population, which could potentially influence subsequent suicide risk.

Dependency in Africa: Stages of African Political Economy

1983 ◽  
Vol 9 (2) ◽  
pp. 229-247 ◽  
Author(s):  
Amechi Okolo
Keyword(s):  
Political Economy ◽  
International System ◽  
Raw Material ◽  
The West ◽  
Cheap Labour ◽  
History Of ◽  
The Common ◽  
First Contact ◽  
The Impact ◽  
The Relationship

This paper traces the history of the relationship between Africa and the West since their first contact brought about by the outward thrust of the West, under the impetus of rising capitalism, in search of cheap labour and cheap raw material for its industries and expanding markets for its industrial products, both of which could be better ensured through domination and exploitation. The paper identifies five successive stages that African political economy has passed through under the impact of this relationship, each phase qualitatively different from the other but all having the common characteristic of domination-dependence syndrome, and each phase having been dictated by the dynamics of capitalism in different eras and by the dominant forces in the changing international system. Its finding is that the way to the latest stage, the dependency phase, was paved by the progressive proletarianization of the African peoples and the maintenance of an international peonage system. It ends by indicating the direction in which Africa can make a beginning to break out of dependency and achieve liberation.

Religion and Politics in Contemporary Turkey

2021 ◽  
Author(s):  
Ateş Altınordu
Keyword(s):  
Religion And Politics ◽  
Political Incorporation ◽  
Turkish Politics ◽  
Primary Means ◽  
History Of ◽  
The Republic ◽  
Turkish State ◽  
Islamic Parties ◽  
The Impact ◽  
The Relationship

Religion and secularism have been central threads in Turkish politics throughout the history of the republic. This chapter focuses on three important aspects of the relationship between religion and politics in contemporary Turkey. First, it explores the political functions of the Directorate of Religious Affairs (Diyanet), a government agency that has served as the primary means for the implementation of the religious policies of the Turkish state. Second, it investigates the relations between Islamic communities, political parties, and the state and argues that the distinction between official and unofficial Islam that has informed much of the work on the Turkish religious field must be strongly qualified. Finally, the author focuses on the trajectory of political Islam in Turkey, critically reviewing the literature on the rise, political incorporation, and authoritarian turn of Islamic parties. The conclusion emphasizes the need for studies investigating the impact of politics on religiosity in Turkish society.

scholarly journals A new species of pygmy Paroctopus (Cephalopoda: Octopodidae): the smallest southwestern Atlantic octopod, found in sea debris

2021 ◽  
Author(s):  
Tatiana S. Leite ◽  
Erica A.G. Vidal ◽  
Françoise Dantas Lima ◽  
Sergio M.Q. Lima ◽  
Ricardo M Dias ◽  
...  
Keyword(s):  
New Species ◽  
Western Atlantic ◽  
Bayesian Phylogenetic Analysis ◽  
History Of ◽  
Novel Habitat ◽  
In Situ Observations ◽  
Males And Females ◽  
The Relationship ◽  
A New Species

Abstract The new species, Paroctopus cthulu sp. nov. Leite, Haimovici, Lima and Lima, was recorded from very shallow coastal waters on sandy/muddy and shelter-poor bottoms with natural and human-origin debris. It is a small octopus, adults are less than 35 mm mantle length (ML) and weigh around 15 g. It has short to medium sized arms, enlarged suckers on the arms of both males and females, large posterior salivary glands (25 %ML), a relatively large beak (9 % ML) and medium to large mature eggs (3.5 to > 9 mm). The characteristics of hatchlings of two brooding females, some of their anatomical features, and in-situ observations of their behaviour are a clue to the life history of it and closely related pygmy octopuses. The Bayesian phylogenetic analysis showed that Paroctopus cthulu sp.nov. specimens grouped in a well-supported clade of Paroctopus species, separate from P.joubini and P. cf mercatoris from the Northwestern Atlantic . The description of this new species, living in a novel habitat of human debris in shallow water off Brazil, offered an opportunity not only to evaluate the relationship among the small octopuses of the western Atlantic, Caribbean and eastern Pacific, but also their adaptation to the Anthropocene period.

Prevalence of ADHD in children born by mothers consuming Frankincense during pregnancy

2021 ◽  
Author(s):  
Alimohammad Ranjbar ◽  
Elahe Kamali Ardakani ◽  
Rahele Zareshahi
Keyword(s):  
Data Gathering ◽  
Control Group ◽  
Case Group ◽  
Dsm V ◽  
History Of ◽  
The Difference ◽  
The Impact ◽  
The Relationship ◽  
The Brain ◽  
Positive Effect

Aims: In Iranian culture, due to some narratives from the prophet Mohammad about the use of frankincense during pregnancy for increasing IQ in children, some women consume frankincense during expectancy. This study's goal is to evaluate the relationship between frankincense used during pregnancy and the incidence of ADHD. Methods: In this study, the case group comprised children 4-17 years old referring to Shahid Chamran Pharmacy in Yazd from summer to winter 2018 for receiving Methylphenidate, those with whom a psychologist had identified ADHD based on DSM-V factors.  The control group included children of the same age group but without ADHD. For data gathering, a checklist was used with some questions on smoking, family history of ADHD, presence/absence of a specific disease during pregnancy, frankincense used during pregnancy, and a chemical medication consumed during pregnancy. Results: The main result demonstrated that the children whose mothers used frankincense during pregnancy were 0.67 times less likely to be affected by ADHD than those whose mothers did not use this substance. However, the difference failed to be statistically significant (P>0.05). Conclusion: Some studies report that frankincense can bear a positive effect on the development of the brain and possibly adequate formation of dendrites trees, axons and induce proper communication between them, so the impact of frankincense on the brain may be justified by its protective effect against the hyperactive child.

‘Y’all need to hide your kids, hide your wife’: Mobile applications, risk and sex offender databases

2016 ◽  
Vol 18 (11) ◽  
pp. 2469-2484 ◽  
Author(s):  
Sharif Mowlabocus
Keyword(s):  
United States ◽  
Sex Offenders ◽  
Mobile Applications ◽  
Sex Offender ◽  
The United States ◽  
Mobile Mapping ◽  
Recent Developments ◽  
History Of ◽  
The Impact ◽  
The Relationship

This article reflects upon recent developments in sex offender tracking and monitoring. Taking as its focus a suite of mobile applications available for use in the United States, the author explores the impact and consequences of remediating the data held by State offender databases. The article charts the recent history of techno-corrections as it applies to this category of criminal, before then undertaking an analysis of current remediation of this legally obtained data. In doing so, the author identifies how the recontextualizing of data serves to (re)negotiate the relationship between the user, the database and registered sex offenders. The author concludes by arguing that the (mobile) mapping of offender databases serves to obscure the original intentions of these recording mechanisms and might hinder their effectiveness in reducing sex offending.

scholarly journals A-130 An Exploratory Analysis of the Impact PTSD Related Sleep Disturbance has on Language Generativity in Veterans with mTBI

2020 ◽  
Vol 35 (6) ◽  
pp. 923-923
Author(s):  
Walker N ◽  
Scott T ◽  
Spellman J ◽  
Rivera J ◽  
Waltzman D ◽  
...  
Keyword(s):  
Sleep Quality ◽  
Sleep Disturbance ◽  
Verbal Fluency ◽  
Sleep Disturbances ◽  
Self Report ◽  
Analysis Of Covariance ◽  
Ptsd Symptoms ◽  
History Of ◽  
The Impact ◽  
The Relationship

Abstract Objective Reviewed literature suggests that individuals with Posttraumatic Stress Disorder (PTSD) demonstrate cognitive deficits in attention, learning/memory, and executive functions. Less is known regarding the relationship between sleep disturbance and language abilities among individuals with PTSD. We hypothesized that subjective perceptions of PTSD-related sleep disturbance would impact language generativity in Veterans with PTSD. Methods 38 individuals (mean age = 46.58, SD = 13.55; 10% female) were administered a brief neurocognitive battery including measures of verbal generativity [i.e., Delis-Kaplan Executive Function System: Verbal fluency subtest], PTSD symptoms (i.e., clinically significant PTSD = > 35 on the PTSD Checklist for DSM-IV), self-report measures of sleep quality (Pittsburgh Sleep Quality Inventory; PSQI), and PTSD-related sleep disturbances (PSQI – Addendum for PTSD). All participants had a history of mild traumatic brain injury (mTBI). An analysis of covariance was used to assess the contribution of PTSD-related sleep disturbance on verbal fluency in Veterans with PTSD. Post-hoc analyses were conducted. Results Those without PTSD performed better on letter fluency than those with PTSD (p=.019). There was no significant effect of PTSD (presence or absence) on letter fluency performance after controlling for subjective sleep quality, F(1, 35) = 1.43, p = .239. Follow up analyses failed to show any associations between PTSD and other cognitive measures. Conclusions PTSD related sleep disturbance accounts for a significant portion of the variance in the relationship between PTSD and verbal generativity. Individuals with a history of mTBI and current PTSD symptoms, may have worse verbal generativity but is partially accounted for by PTSD related sleep disturbance.

The Politics of Intimate Care

2017 ◽  
Author(s):  
Charissa J. Threat
Keyword(s):  
Nineteenth Century ◽  
Social Relationships ◽  
The United States ◽  
Nurse Training ◽  
Army Nurse Corps ◽  
Military Nursing ◽  
History Of ◽  
The Military ◽  
The Impact ◽  
The Relationship

This chapter traces the early evolution of nursing from the mid-nineteenth century through the early twentieth century, with particular emphasis on how nursing care became both gendered and racialized in civilian society. Focusing on the history of the Army Nurse Corps (ANC), it explores the relationship between the military and civilian populace to illuminate trends in nursing practices, debates about work, and concerns about war taking place in the larger civil society. It also examines how war and military nursing needs shaped the evolution of the modern nursing profession and how nursing became embroiled in the politics of intimate care, along with the implications for gender roles and race relations that permeated social relationships and interactions in civilian society. The chapter points to the Civil War as the transformative moment in the history of nursing in the United States, moving nursing from an unpaid obligation to a paid occupation. Finally, it discusses the impact of the introduction of formal nurse training during the last quarter of the nineteenth century on African American nurses.

scholarly journals The Impact of the Netherlandish Landscape Tradition on Poetry and Painting in Early Modern England*

2013 ◽  
Vol 66 (3) ◽  
pp. 866-903 ◽  
Author(s):  
Sara Trevisan
Keyword(s):  
Seventeenth Century ◽  
Early Modern ◽  
Rare Case ◽  
Early Modern England ◽  
Historical Knowledge ◽  
Complex Product ◽  
Problematic Relationship ◽  
History Of ◽  
The Impact ◽  
The Relationship

AbstractThe relationship between poetry and painting has been one of the most debated issues in the history of criticism. The present article explores this problematic relationship in the context of sixteenth- and seventeenth-century England, taking into account theories of rhetoric, visual perception, and art. It analyzes a rare case in which a specific school of painting directly inspired poetry: in particular, the ways in which the Netherlandish landscape tradition influenced natural descriptions in the poem Poly-Olbion (1612, 1622) by Michael Drayton (1563–1631). Drayton — under the influence of the artistic principles of landscape depiction as explained in Henry Peacham’s art manuals, as well as of direct observation of Dutch and Flemish landscape prints and paintings — successfully managed to render pictorial landscapes into poetry. Through practical examples, this essay will thoroughly demonstrate that rhetoric is capable of emulating pictorial styles in a way that presupposes specialized art-historical knowledge, and that pictorialism can be the complex product as much of poetry and rhetoric as of painting and art-theoretical vocabulary.

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