scholarly journals The Impact of Personal Thoracic Impedance on Electrical Cardioversion in Patients with Atrial Arrhythmias

Medicina ◽  
2021 ◽  
Vol 57 (6) ◽  
pp. 618
Author(s):  
Seung-Young Roh ◽  
Jinhee Ahn ◽  
Kwang-No Lee ◽  
Yong-Soo Baek ◽  
Dong-Hyeok Kim ◽  
...  
Keyword(s):  
Electrical Current ◽  
Atrial Arrhythmias ◽  
Thoracic Impedance ◽  
Atrial Tachyarrhythmias ◽  
The Past ◽  
High Impedance ◽  
Direct Current Cardioversion ◽  
And Gender ◽  
The Moment ◽  
The Impact

Background and Objectives—Direct current cardioversion (DCCV) is a safe and useful treatment for atrial tachyarrhythmias. In the past, the energy delivered in DCCV was decided upon empirically, based only on the type of tachyarrhythmia. This conventional method does not consider individual factors and may lead to unnecessary electrical damage. Materials and Methods—We performed DCCV in patients with atrial tachyarrhythmias. The impedance and electrical current at the moment of shock were measured. The human thoracic impedance between both defibrillator patches and the electric current that was used were measured. Results—A total of 683 DCCVs were performed on 466 atrial tachyarrhythmia patients. The average impedance was 64 ± 11 Ω and the average successful current was 23 ± 6 mA. The magnitude of the electrical current that was successful depended upon the human impedance (linear regression, B = −0.266, p < 0.001) and the left atrial diameter (B = 0.092, p < 0.001). Impedance was directly proportional to body mass index (BMI) (B = 1.598, p < 0.001) and was higher in females than in males (77 ± 15 Ω vs. 63 ± 11 Ω, p < 0.001). Notably, the high-impedance (>70 Ω) group had a higher BMI (27 ± 4 kg/m2 vs. 25 ± 3 kg/m2, p < 0.001) and a higher proportion of females (37% vs. 9%, p < 0.001) than the low-impedance group (<70 Ω). However, thoracic impedance was not an independent predictor for successful DCCV. Conclusions—Human thoracic impedance was one of the factors that impacted the level of electrical current required for successful DCCV in patients with atrial arrhythmias. In the future, it will be helpful to consider individual predictors, such as BMI and gender, to minimize electrical damage during DCCV.

scholarly journals Fluoride removal using electrocoagulation technique

2021 ◽  
Vol 877 (1) ◽  
pp. 012047
Author(s):  
Hind M. Ewadh ◽  
Mustafa J. Al Imari ◽  
Sabrean F. Jawad ◽  
Hayfaa A. Mubarak
Keyword(s):  
Severe Disease ◽  
Electrical Current ◽  
Electrode Spacing ◽  
Polluted Water ◽  
Fluoride Removal ◽  
Acidic Environment ◽  
Current Electrode ◽  
The Past ◽  
The Impact ◽  
A Current

Abstract A modest quantity of fluoride can increase the mineralization of teeth and reduce their cavities. But the presomerence of fluoride in excess in water can lead to severe disease infertility. In the past few decades, scientists have thus been preoccupied with developing ways to reduce sewage fluoride concentrations and reduce their effects on human health. The present study is aimed at using the technology of electrocoagulation to remove fluoride from polluted water. Tests have been done to examine the elimination of fluoride with a rectangular electrocoagulation cell and examine the impact of the experimental aspects on fluoride extraction, specifically electrical current, electrode spacing, and pH. The authors found that 93% of the fluoride has been extracted using 5mm spaced electrodes with a current density of 2 mA/cm2 and a level of pH of 7 from the polluted water after 20 min of processing. Experimental factors considerably impact the efficacy of fluoride removal. In the acidic environment, greater effectiveness of fluoride removal is being attained. The elimination effectiveness depends directly on the electric current, whereas the distance between poles is adversely linked to fluoride elimination.

scholarly journals The Impact of Past Pandemics on Economic and Gender Inequalities

2021 ◽  
Author(s):  
Michal Brzezinski
Keyword(s):  
Gender Inequality ◽  
Wealth Inequality ◽  
The Other ◽  
Swine Flu ◽  
Gender Inequalities ◽  
The Past ◽  
Cross Country ◽  
Negative Impacts ◽  
And Gender ◽  
The Impact

This paper estimates how previous major pandemic events affected economic and gender inequalities in the short- to medium run. We consider the impact of six major pandemic episodes – H3N2 Flu (1968), SARS (2003), H1N1 Swine Flu (2009), MERS (2012), Ebola (2014), and Zika (2016) – on cross-country inequalities in a sample of up to 180 countries observed over 1950-2019. Results show that the past pandemics have moderately increased income inequality in the affected countries in the period of four to five years after the pandemic’s start. On the other hand, we do not find any robust negative impacts on wealth inequality. The results concerning gender inequality are less consistent, but we find some evidence of declining gender equality among the hardest hit countries, as well as of growing gender gaps in unemployment within the four years after the onset of the pandemic.

Ethnicity Significantly Influences Incidence Patterns and Predicts Mortality: Adult Hodgkin Lymphoma (HL) In the United States (US)

Blood ◽  
2010 ◽  
Vol 116 (21) ◽  
pp. 2683-2683
Author(s):  
Andrew M Evens ◽  
Eileen Shiuan ◽  
Soyang Kwon ◽  
Leo I Gordon ◽  
Brian Chiu
Keyword(s):  
Mortality Rate ◽  
Conflicts Of Interest ◽  
The United States ◽  
Annual Percent Change ◽  
Black Females ◽  
The Past ◽  
Seer Data ◽  
Black Populations ◽  
And Gender ◽  
The Impact

Abstract Abstract 2683 Background: Pediatric HL studies have suggested survival differences based on ethnicity. However, little data is available regarding the impact, if any, of ethnicity on incidence patterns, disease histology, and/or survival among adult HL. Methods: We examined data for 13 US SEER areas, several of which contain large Hispanic and Black populations. Case information was obtained from the 11/2009 SEER data submission released April 2010. We analyzed incidence, HL histology, and mortality rates according to ethnicity, age, and gender. We also examined incidence patterns across the past four decades. All analyses used SEER*Stat. Results: A total of 16,783 HL cases were diagnosed among residents in the 13 SEER registry areas during 1992–2007, with non-Hispanic Whites contributing the largest number (n=11,890), followed by Hispanics (n=2,190), and Blacks (n=1,724). Consistent with SEER 9 results (1973 data), Whites show a continued bimodal age-incidence curve (6.0/100,000 ages 25–29, 2.5/100,000 ages 50–54, and 4.5/100,000 age 75–79). However, Blacks have a much less apparent bimodal pattern (4.5/100,000 ages 25–29, 2.6/100,000 ages 50–54, and 3.0/100,000 ages 75–79), while Hispanics are distinctly not bimodal with a small increase at 20–24 (2.4/100,000) followed by an exponential-like increase with peak HL incidence at ages 80–84 (7.0/100,000). Moreover, among persons >65 years, HL is currently significantly more common in Hispanics than Whites (4.7-7.0/100,000 vs 3.9–4.5/100,000, respectively, p<0.05). With gender, HL is more common in males than females, regardless of ethnicity. Interestingly, the male excess, however, does not occur until ages 30–34 (all ethnicities). Furthermore, from 1975–2007, HL incidence increased in Black females (annual percent change (APC) = 2.5; p<0.05) and White females (APC = 0.4; p<0.05). According to histology, both nodular sclerosis and mixed cellularity are more common in Whites followed by Blacks and Hispanics, while in persons age 60–84, both histologies are significantly more common in Hispanics compared with Whites and Blacks. Over the past 20 years, mortality has declined within each race by 10.3%–13.7% (p<0.05). However, age-specific ethnic survival disparities are apparent (Figure 1). For ages 65–84, Hispanics have a significantly increased mortality rate compared with Whites/Blacks (p<0.05). Conversely, among ages 20–44, Hispanics have a lower mortality rate versus Whites and Blacks. Conclusions: Multiple important epidemiologic and mortality differences are evident across and within ethnicities in adult HL. *Both sexes (1992-2007). Rates are per 100,000. Mortality source: US Mortality Files, National Center for Health Statistics, CDC. Accessed August 12th, 2010. Disclosures: No relevant conflicts of interest to declare.

scholarly journals The Impact of Past Pandemics on Economic and Gender Inequalities

2021 ◽  
Author(s):  
Michal Brzezinski
Keyword(s):  
Gender Inequality ◽  
Wealth Inequality ◽  
The Other ◽  
Swine Flu ◽  
Gender Inequalities ◽  
The Past ◽  
Cross Country ◽  
Negative Impacts ◽  
And Gender ◽  
The Impact

This paper estimates how previous major pandemic events affected economic and gender inequalities in the short- to medium run. We consider the impact of six major pandemic episodes - H3N2 Flu (1968), SARS (2003), H1N1 Swine Flu (2009), MERS (2012), Ebola (2014), and Zika (2016) - on cross-country inequalities in a sample of up to 180 countries observed over 1950-2019. Results show that the past pandemics have moderately increased income inequality in the affected countries in the period of four to five years after the pandemic's start. On the other hand, we do not find any robust negative impacts on wealth inequality. The results concerning gender inequality are less consistent, but we find some evidence of declining gender equality among the hardest hit countries, as well as of growing gender gaps in unemployment within the four years after the onset of the pandemic.

scholarly journals Από την εκπαίδευση στην αμειβόμενη εργασία: Εμπειρική διερεύνηση της εργασιακής ένταξης των νέων στην Ελλάδα

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Μαρία Καραμεσίνη
Keyword(s):  
Labour Market ◽  
Market Integration ◽  
Dynamic Approach ◽  
Labour Market Integration ◽  
Economic Context ◽  
And Gender ◽  
The Moment ◽  
The Impact ◽  
The Empirical Analysis ◽  
Labour Market Entry

<p>The paper empirically investigates the transition of youth from education to work in Greece by using a macroeconomic and dynamic approach. It examines in particular the labour market integration of young graduates of the year 1999<br />by educational attainment level and gender, as well as the difficulties they had in stabilizing in employment during 2000-2005. The paper also discusses the impact of the economic context at the moment of graduation and during the first years after labour market entry by comparing employment performance of the 1994, 1996, 1998, 2000 and 2002 cohorts, one, three and five years after graduation. The methodology used for the empirical analysis consists of the creation of pseudopanels and the estimation of a number of indicators of labour market integration for consecutive years.</p>

scholarly journals Human Atrial Cell Models to Analyse Haemodialysis-Related Effects on Cardiac Electrophysiology: Work in Progress

2014 ◽  
Vol 2014 ◽  
pp. 1-18 ◽  
Author(s):  
Elisa Passini ◽  
Simonetta Genovesi ◽  
Stefano Severi
Keyword(s):  
Cardiac Electrophysiology ◽  
Environmental Changes ◽  
The Past ◽  
Plasma Electrolyte ◽  
Current State ◽  
Atrial Electrophysiology ◽  
The Moment ◽  
The Impact ◽  
Atrial Cell ◽  
Extracellular Environment

During haemodialysis (HD) sessions, patients undergo alterations in the extracellular environment, mostly concerning plasma electrolyte concentrations, pH, and volume, together with a modification of sympathovagal balance. All these changes affect cardiac electrophysiology, possibly leading to an increased arrhythmic risk. Computational modeling may help to investigate the impact of HD-related changes on atrial electrophysiology. However, many different human atrial action potential (AP) models are currently available, all validated only with the standard electrolyte concentrations used in experiments. Therefore, they may respond in different ways to the same environmental changes. After an overview on how the computational approach has been used in the past to investigate the effect of HD therapy on cardiac electrophysiology, the aim of this work has been to assess the current state of the art in human atrial AP models, with respect to the HD context. All the published human atrial AP models have been considered and tested for electrolytes, volume changes, and different acetylcholine concentrations. Most of them proved to be reliable for single modifications, but all of them showed some drawbacks. Therefore, there is room for a new human atrial AP model, hopefully able to physiologically reproduce all the HD-related effects. At the moment, work is still in progress in this specific field.

scholarly journals Men in Charge? Rethinking Authority in Muslim Legal Tradition

2016 ◽  
Vol 33 (1) ◽  
pp. 137-141
Author(s):  
Shehnaz Haqqani
Keyword(s):  
Leadership Roles ◽  
Legal Tradition ◽  
Legal Principles ◽  
Gender Egalitarianism ◽  
The Past ◽  
Practical Examination ◽  
Modern Period ◽  
And Gender ◽  
Male Authority ◽  
The Impact

At a time when men’s assumption of leadership roles through all-male eventsand publications is a popular phenomenon, Men in Charge?, a byproduct ofa project by the women-led organization Musawah, could not have been publishedat a more opportune moment. Comprising a foreword by Zainah Anwar,Musawah’s director, an introduction by the editors, and ten chapters from academicsand activists of varied backgrounds, the book historicizes and problematizesthe Islamic idea of qiwāmah (authority) and wilāyah (guardianship),among other legal patriarchal precepts. It successfully argues that the Islamiclegal tradition with regards to gender roles rests on the false notion of malesuperiority.Men in Charge? carries immeasurable value for scholars and studentsof Islam, religion, women’s and gender studies, activists working toward gender-egalitarianism, and (Muslim) feminists seeking empowerment within areligious framework. It also speaks to reform leaders and lawmakers in Muslimstates, who might better understand the fundamental assumptions uponwhich family laws operate and their disconnect from the reality that womenand families face. The book’s major success lies in covering several importantlayers of the myth of male authority, from the theoretical gaps in the notionsof qiwāmah, wilāyah, and istikhlāf to a practical examination of the impact ofthese legal principles and proposals for new and creative approaches for feministsto apply in their vision of a gender-egalitarian Islam.Men in Charge? can be divided into two sections: (1) a theoretical discussionof the problems raised through fiqh rulings on gender and proposesnew ways through which Muslim feminists can approach those problems and(2) an analysis of the established ideals’ practical impacts. Ziba Mir-Hosseini’sdiscussion in the first chapter, “Muslim Legal Tradition and the Challengeof Gender Equality,” effectively contextualizes the book’s broaderdiscussion: What Muslim scholars did in the early twentieth century to challengethe legal tradition’s normative thought in an effort to move towardmore democratic and egalitarian family systems.According to the ideas of the scholars from the past and those from themore modern period, there appears to be an inconsistency between the twogroups’ understanding of “woman.” This suggests that the idea of woman is ...

scholarly journals The prospective status of women in israel following a clash between the feminist and religious revolutions in the Israeli army

2019 ◽  
pp. 289-302
Author(s):  
Anat Pershitz
Keyword(s):  
Gender Inequality ◽  
Religious Values ◽  
Equal Opportunities ◽  
The Past ◽  
The Status ◽  
And Gender ◽  
The Moment ◽  
Israeli Army ◽  
Status Of Women

In the past decade, the Israeli Army (IDF) has been undergoing simultane-ously two ‘social revolutions’: a ‘feminist revolution’ and a “religious revolution”. The two revolutions have different and conflicting ideologies causing a clash of values. Feminist values demand the integration of women in the army without gender separation, whereas religious principles require modesty and gender separation. At the moment, in practice, religious values which under-mine women’s equal opportunities in the army outweigh democratic values. If the secular women and men in Israeli society will not act to deprive the IDF of its unofficial and unauthorized role of balancing conflicting values in society, the status and roles of women in the army will be downgraded, directly im-pacting gender inequality in the employment market.

The influence of timing, location and social setting on hedonic and emotional evaluations of past eating experiences

2020 ◽  
Vol 122 (7) ◽  
pp. 2203-2217
Author(s):  
Elizabeth Cassandra Nath ◽  
Peter Robert Cannon ◽  
Michael Carl Philipp
Keyword(s):  
Online Survey ◽  
Social Setting ◽  
Contextual Variables ◽  
Content Type ◽  
The Past ◽  
Meal Time ◽  
English Speaking ◽  
The Moment ◽  
Consumer Emotion ◽  
The Impact

PurposeOur hedonic and emotional evaluations of the foods we encounter in daily life are predictive of whether we will choose to consume these foods in the future. Given the context-dependent nature of these evaluations and the rise in studies set in naturalistic and ecologically valid consumption settings, it is crucial that we examine the impact of contextual variables on our current consumer emotion measurement methods.Design/methodology/approachThree important factors that influence meal-evoked emotion – meal time, location and social setting – were explored via online survey of 866 English-speaking adults from all over the world. Respondents were asked to recall three meals they had consumed in the past week and report on their subjective liking and emotional associations. Subjective liking was measured with a labelled affective magnitude scale and emotion was measured using EsSense25.FindingsDinner meals, meals eaten at the home of a family member or friend, and meals eaten with one's spouse or partner were rated highest in subjective liking. Meals eaten at work or alone were associated with the lowest intensities of positive emotion.Originality/valueThe majority of investigations into meal context and emotion have measured consumers' emotional associations in the moment and in the laboratory. The present study characterises the influence of contextual variables on the emotional associations of past eating experiences in naturalistic settings.

Fluorescent potentiometric dyes for membrane-potential imaging

1994 ◽  
Vol 52 ◽  
pp. 166-167
Author(s):  
Leslie M. Loew
Keyword(s):  
Membrane Potential ◽  
Single Cells ◽  
Quantitative Imaging ◽  
Optical Recording ◽  
Biological Processes ◽  
Major Focus ◽  
The Past ◽  
Excitable Systems ◽  
Major Application ◽  
The Impact

A major application of potentiometric dyes has been the multisite optical recording of electrical activity in excitable systems. After being championed by L.B. Cohen and his colleagues for the past 20 years, the impact of this technology is rapidly being felt and is spreading to an increasing number of neuroscience laboratories. A second class of experiments involves using dyes to image membrane potential distributions in single cells by digital imaging microscopy - a major focus of this lab. These studies usually do not require the temporal resolution of multisite optical recording, being primarily focussed on slow cell biological processes, and therefore can achieve much higher spatial resolution. We have developed 2 methods for quantitative imaging of membrane potential. One method uses dual wavelength imaging of membrane-staining dyes and the other uses quantitative 3D imaging of a fluorescent lipophilic cation; the dyes used in each case were synthesized for this purpose in this laboratory.

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