scholarly journals Enlisting Aero-algal Flora and Algal Allergens Using Fan Dust Sampling Method from Pune, Maharashtra

2021 ◽  
Vol 18 (4) ◽  
pp. 767-778
Author(s):  
Apurva Kapil. Kamble ◽  
Jogita Tushar Pandkar

Algae in the atmosphere are one of the bio-components of the environment. Despite the fact that they may have a negative impact on human health, they are the least studied organism in the field of aerobiology. Airborne algae continue to be viable in the atmosphere in the form of spores and filaments. In order to investigate the intramural diversity of airborne algae in Pune, eight residences were chosen, from which 16 fan dust samples were collected over a ten-day period. Total (108) aero-algal forms were recorded. Out of which 107 were Cyanophyta, and only one was Chlorophyta. The dominance of Cyanophyta members is attributed to the presence of a thick mucilaginous sheath around them, which allows them to tolerate the dryness. Overall, filamentous cyanophytes (71) outnumber coccoid cyanophytes (36). However, both fan dust slide samples and culture slide samples show variance. Coccoid cyanophytes (53) outnumber filamentous cyanophytes (11) in direct slide scans, although filamentous cyanophytes (25) were somewhat more numerous in culture samples than coccoid Cyanophyta (19). This increase in filamentous forms might be because of hormogonia of filamentous algae, which remained unidentified in direct slide scan and upon inoculation underwent reproduction increasing number of filamentous algae in culture slides. Chrooccocus, Gloeocapsa, Lyngbya, Nostoc, and Stigonema were among the forms found on the first and tenth days of fan dust sampling, indicating that they were a common inhabitant of fan dust during the study and that the fan, as an aero sampler, was able to capture them, demonstrating its potency as an aero sampler. Soil can be a substantial factor in the creation of fan dust, as these genera were frequently separated from the soil. Gloeocapsa, Phormidium, Lyngbya, Schizothrix, Cylindrospermum, Nostoc, Anabaena, Scytonema, Calothrix, and Scenedesmus were among the allergic aero-algal genera discovered during the investigation.

2020 ◽  
Vol 6 (2) ◽  
Author(s):  
Moh. Rasyid Ridho ◽  
Enggar Patriono ◽  
Sarno Sarno ◽  
Sahira Wirda

The initial phase of the fish life cycle is a critical phase associated with high mortality due to sensitivity to predators, food availability, and also environmental changes that occur in nature. Disruption of the initial stages of fish life has a negative impact on fish populations. Until now there has been no information about fish larvae around the Banyuasin River Estuary. Therefore, research is needed on the diversity of fish larvae around the Banyuasin River Estuary, South Sumatra Province. This research were used purposive sampling method, sampling technique in the form of Cruise Track Design with continuous parallel survey trajectory. Based on the results of the study found as many as 10 families consisting of 1483 individuals of fish larvae in March and 1013 individuals of fish larvae in May consisting of Engraulidae 1,601 individuals of fish larvae, Mungiloidei as many as 109 individuals, Leiognathidae 50 individuals, Chanidae 453 individuals, Scatophagidae 20 individuals , Belonidae 39 individuals, Gobioididae 5 individuals, Chandidae 183 individuals, Syngnatihidae 6 individuals, and Gobiidae 30 individuals fish larvae. The index value of fish larvae diversity is classified as medium category (March 1.02 and May 1.12), Morisita index shows the distribution pattern of fish larvae classified as a group (March 0-14.17 and May 2.43-10.40 ), and the evenness index value is in the medium category (March 0.437 and May 0.521).


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ellie Opdahl ◽  
Kathryn Demps ◽  
Julie A. Heath

AbstractWhile outdoor recreationists often report increases to their well-being for time spent in nature, the mechanisms through which local ecologies affect human health have been difficult to quantify, and thus to manage. We combine data from pre-post salivary cortisol measures, GPS tracks, visitor photos, and surveys from 88 hikers traversing several types of landscape within peri-urban public lands in southwest Idaho, USA. We find that time in biodiverse riparian areas and areas of perceived aesthetic value correlates with decreases in salivary cortisol and improved well-being for hikers. Wildlife sightings were not associated with changes in salivary cortisol, but were associated with riparian travel and aesthetic preferences, indicating an indirect pathway for ecosystem services. Additionally, wildlife sightings decreased on high-use days, even though hikers did not perceive a negative impact of their recreational activity. These results suggest that cultural and physiological ecosystem services of nature depend on the ecological community of the area. Preferential visitation and high service value of riparian areas by hikers and wildlife alike target shared riparian areas as hot spots for management efforts to promote both ecological and human health within an increasingly urbanizing world.


Author(s):  
Theresia Julina Rusli ◽  
I Dewa Nyoman Wiratmaja

This  research  aims to find empirical evidence  about the impact  of  workload  and  audit tenure  on  audit quality  and  using audit  committee  as  a  moderating  variable. This  research  focused  on  manufacturing companies  that  listed  on  the  Indonesia Stock Exchange. Sample was collected using   purposive sampling method and resulted 31  companies as a final sample.  The  data are analyzed by using Moderated Regression Analysis (MRA). The results of  this research indicate  that the  workload  has a negative  impact on  audit quality.  Audit tenure has a positive impact on audit quality. Audit committee reduces the negative impact of workload on audit quality. And audit committee reduces the positive impact of audit tenure on audit quality.


2020 ◽  
Vol 217 ◽  
pp. 05006
Author(s):  
Galina Ekinil ◽  
Valeria Provotorina ◽  
Antonina Petrenko ◽  
Lyubov Gorgadze

This study is aimed at analyzing hotel enterprises in the Rostov region and identifying the main approaches to ensuring environmental safety; recommendations for the implementation of environmental innovations in hotel enterprises are proposed, which can significantly reduce the negative impact on human health and the environment.


2019 ◽  
Author(s):  
Linh Dan Ngo ◽  
Dumitru Duca ◽  
Yvain Carpentier ◽  
Jennifer A. Noble ◽  
Raouf Ikhenazene ◽  
...  

Abstract. Combustion of hydrocarbons produces both particulate and gas phase emissions responsible for major impacts on atmospheric chemistry and human health. Ascertaining the impact of these emissions, especially on human health, is not straightforward because of our relatively poor knowledge of how chemical compounds are partitioned between the particle and gas phases. Accordingly, we propose to couple a two-filter sampling method with a multi-technique analytical approach to fully characterize the particulate and gas phase compositions of combustion by-products. The two-filter sampling method is designed to retain particulate matter (elemental carbon possibly covered in a surface layer of adsorbed molecules) on a first quartz fiber filter while letting the gas phase pass through, and then trap the most volatile components on a second black carbon-covered filter. All samples thus collected are subsequently subjected to a multi-technique analytical protocol involving two-step laser mass spectrometry (L2MS), secondary ion mass spectrometry (SIMS), and micro-Raman spectroscopy. Using the combination of this two-filter sampling/multi-technique approach in conjunction with advanced statistical methods we are able to unravel distinct surface chemical compositions of aerosols generated with different set points of a miniCAST burner. Specifically, we successfully discriminate samples by their volatile, semi-volatile and non-volatile polycyclic aromatic hydrocarbon (PAH) contents and reveal how subtle changes in combustion parameters affect particle surface chemistry.


Author(s):  
Mohd Saleem ◽  
Mohd Adnan Kausar ◽  
Fahmida Khatoon ◽  
Sadaf Anwar ◽  
Syed Monowar Alam Shahid ◽  
...  

In many aspects of life quality, bio-contaminants and indoor air quality have had catastrophic consequences, including a negative impact on human health with an increased prevalence of allergic respiratory reactions, asthma, and infectious diseases. We aimed to evaluate the quality of indoor air environment and find out the association between human health and indoor air pollution and also to assess the physical health status of a group of Saudi and non-Saudi populations during this pandemic. Also, we aimed to assess the most common health condition or symptoms associated with ventilation. A questionnaire was distributed online to test indoor air quality, ventilation status, common signs and symptoms of any allergy or mental status and their relationship to certain variables. A total of 362 respondents were included. Before living in the current home, flu or Influenza and chapped lips were more prevalent than allergies and chapped lips signs while living in the current home. (12.2% , 10.8% vs. 18.5% , 13.55% before and after respectively) Multiple colds were the second most common symptom (10.2%). Hoarse voice and headaches were the least common symptoms experienced; each constituted 4.4%. During the COVID-19 Pandemic, most respondents wore a facemask, approximately 76.5%; and almost one-third of respondents had bright natural light inside the current home (43.1%). The presence of natural light within the current home was significantly associated with symptoms experienced during living in the current house (p<0.05). Natural sunlight exposure could decrease allergic symptoms and minor health problems associated with poor ventilation and air quality indoors. In current living homes, the majority of respondents never used air purifiers (72.9 percent). In order to get attention from people to enhance the quality and ventilation mechanism of indoor air, special care and awareness of the effects of the use of air purifiers on human health is needed.


2020 ◽  
Vol 19 (2) ◽  
pp. 180-202
Author(s):  
Inna N. Akhunzhanova ◽  
◽  
Aleksander P. Lunev ◽  
Yulia N. Tomashevskaya ◽  
Aleksander V. Koshkarov ◽  
...  

Currently, state institutions of higher education are under pressure from business, the population and the state, which leads to the creation of conditions for dynamic changes in the internal environment of universities. This contradiction between the internal and external environment of universities in the conditions of dynamically changing markets at the post-industrial stage has a negative impact on institutional efficiency, and in these conditions, with the acceleration of instability, a third managerial structure begins to appear that can satisfy the demand for innovations organizations to hybrid universities, which combine a professional, administrative bureaucracy and adhocracy, with no severe restrictions in its structure. In this regard, the authors adapted the features of adhocratic organizations to the conditions of higher education, considered the possibility of applying an adhocratic approach to building the structure and design of an organization on the example of the Astrakhan State University, and identified a number of factors that limit the spread of adhocracy in Russian universities. The main results of the study and the following conclusions were obtained: the organization of training should be carried out on the principles of teamwork for the implementation of complex innovative projects, for which it is necessary to create and develop an appropriate facilities and resources; socialization is one of the key practical models for preparing students in the context of project-based learning and an adhocratic approach; any adhocratic system is a self-learning system, the formation of which requires the creation of appropriate conditions for training and development of university staff; the transition from a professional university to an adhocratic one must be carried out gradually, combining both forms of bureaucracy and adhocracy.


2018 ◽  
Vol 6 (1) ◽  
pp. 35
Author(s):  
Esta Ruri Solecha ◽  
Diah Indriani

The behavior of alcohol consumption among street children is a serious health problem, because the behavior can have a negative impact. This behavior occurs due to imperfect social interaction in the community and life within the family of street children. This study aims to determine the factors that influence the behavior of alcohol consumption in street children in Kediri. This research method using quantitative approach method. The population in this study is all street children in Kediri with the criteria of adolescents ie age 10-19 years. The sample used in this study were 30 respondents, using accidental sampling method. The variables used are alcohol consumption behavior, attitude, knowledge, affordability, and peers. Data were collected using questionnaire and data analysis using Chi-square test. The results showed that of 30 street children respondents 76.7% consumed alcohol. The result of Chi-square test shows that the level factor of knowledge, attitude, affordability and environment of peers who have many opportunities to perform alcohol consumption behavior is the affordability factor with OR = 15.8. This means that the easier a person to get an alcoholic drink the greater the chance to behave alcohol consumption.


2010 ◽  
Vol 8 (1) ◽  
pp. 207-221
Author(s):  
Pedro A. Fuertes Olivera

This article attempts to give a critical review of Javier Herrero Ruiz’s Understanding Tropes. At a Crossroads between Pragmatics and Cognition. It evaluates the book in view of the available literature dealing with the trend towards empiricism adopted by Cognitive Linguistics. It also focuses on the main hypothesis put forward, i.e., tropes such as irony, paradox, oxymoron, overstatement, understatement, euphemism, and dysphemism can be considered idealised cognitive models, and discusses the main contributions and arguments of the book, especially his idea that these idealised cognitive models are all constructed around the creation of contrast. A few concerns are also raised, mainly regarding corpus methodology. While these may have a negative impact on the reader, they are not severe enough to discredit the rigour with which the book was conceived.


Sign in / Sign up

Export Citation Format

Share Document