Hasil untuk "Anthropology"

U. Hannerz

Qiaomei Fu, A. Mittnik, Philip L. F. Johnson et al.

Tra Mai Ngo, Van Hung Hoang, Huu Tap Van et al.

This study examines the fly ash from Soc Son municipal waste power plant (SMPP) and suggests ways to repurpose it to reduce its environmental impact. Fly ash from the Soc Son waste power plant has a gray color, spherical particles with a 5–103 μ m diameter, and a high carbon and heavy metal content. Bermorite crystals can absorb and release heavy metals, making monitoring secondary pollutants during incineration crucial. The EDX analysis of fly ash from the Soc Son waste power plant revealed that it was predominantly contaminated with metal elements, with the highest percentage of calcium. The EDX was able to detect heavy metals in incinerator fly ash. The concentration of Zn in the fly ash exceeded QCVN 07:2009/BTNMT standards, indicating the high amounts of some elements that may be hazardous to the environment and human health. Using the SEM/EDX and XRF, the fly ash from the Soc Son landfill power plant was analyzed and discovered that it exceeds permissible limits for dangerous heavy elements. The most common inorganic elements are Ca, followed by Zn, Pb, Cd, and Ag. Fly ash is classed as hazardous waste due to its high concentration of heavy metals, which results from the combustion of municipal solid waste that has not been separated. Vietnam fights municipal solid waste incinerator fly ash production. Some nations stabilize fly ash to remove harmful components and use it in buildings. Stabilized fly ash makes unfired construction bricks and cement manufacturing components and combining fly ash with inorganic trash protects the environment.

Yazheng Li, Ahmed I. Abdo, Zhaoji Shi et al.

Abstract Rapid development in industrialization and urbanization causes serious environmental issues, of which acid rain is one of the quintessential hazards, negatively affecting soil ecology. Liming has been investigated for a long time as the most effective amendment to alter the adverse effects of soil acidity resulting from acid rain. Herein, this study tested the biochar produced from invasive plants as an alternative amendment and hypothesized that biochar can maintain better availability of macronutrients under acid rain than liming by improving soil chemical and biological properties. Therefore, a pot experiment was conducted to compare the effects of lime and biochar at two rates (1% and 3%) on soil available nitrogen (N), phosphorous (P) and potassium (K) under simulated acid rain of two pH levels (4.5: pH4.5 and 2.5: pH2.5) as compared with tap water (pH7.1) as a control treatment. Biochar was produced using different invasive plants, including Blackjack (Biden Pilosa), Wedelia (Wedelia trilobata) and Bitter Vine (Mikania micrantha Kunth). Liming decreased the availability of soil N, P, and K by 36.3% as compared with the control due to the great increment in soil pH and exchangeable calcium (Ca2+) by 59% and 16-fold, respectively. Moreover, liming reduced the alpha diversity of soil bacteria and fungi by 27% and 11%, respectively. In contrast, biochar at different types and rates resulted in a fourfold increment in the available N, P, and K as an average under acid rain (pH4.5 and pH2.5) owing to maintaining a neutral pH (6.5–7), which is the most favorable level for soil microbial and enzymatic activites, and the bioavailability of soil nutrients. Furthermore, biochar caused balanced increments in Ca2+ by threefold, cation exchange capacity by 45%, urease activity by 16%, and fungal diversity by 10%, while having a slight reduction in bacterial diversity by 2.5%. Based on the path, correlation, and principal component analyses, the exchangeable aluminum was a moderator for the reductions in macronutrients’ availability under acid rain, which decreased by 40% and 35% under liming and biochar, respectively. This study strongly recommended the use of biochar from invasive plants instead of lime for sustainable improvements in soil properties under acid rain. Graphical Abstract

Albertina Paula Monteiro, Francisco Barbosa, Amélia Silva et al.

Based on the legitimacy and stakeholders’ theories, this research aims to analyze the environmental information disclosure of Portuguese companies. Specifically, this study aims to explore the environmental information disclosure level, whether the industry (environmentally sensitive) influences the level of ecological matters disclosure, and whether this impacts the companies' performance/profitability. Using the content analysis technique, we developed two indices to assess the level of environmental disclosures in companies' mandatory and voluntary reporting. In addition, for the relationship between variables analysis, we applied the Process Macro of SPSS software. Study results show that (1) there is a positive evolution in the level of environmental disclosure by Lisbon stock exchange listed companies between the years 2015 and 2017, (2) the industry has no significant relationship with profitability; (3) the environmental disclosure acts as a mediator variable in the relationship between industry and profitability. This research presents differences in the tendency of environmental matters disclosure when prepared under an accounting framework or voluntarily and assesses the mediating role of the environmental disclosure index in the relationship between industry and performance.

Shivani Narwal, Rajesh Dhankhar, Savita Kalshan et al.

Presence of plastics in the surroundings is ubiquitous, as generation of plastics is booming globally and it gets accumulated in oceans leading to deleterious impacts on marine life, public health and the surrounding environment. Owing to its non-degradable nature, plastic particles remain in surroundings for extended periods which automatically facilitate its out spreading. Therefore, there is a need to shift to bio-based plastics, as bio-based green economy hinges on sustainable employment of bioresources for generating a broad spectrum of products, biofuels, chemicals and bioplastics. Typically bioplastics are synthesized from bio-based resources considered to contribute more to sustainable production of plastic as a part of the circular economy. Bioplastics are luring attention and growing as counterfeit material for petroleum-derived plastics owing to their biodegradability. Recently an engrossed interest has been burgeoning in producing drop-in polymers and new-fangled bioplastics by utilizing lignocellulosic feedstock. This paper reviews the enormous potential of lignocellulosic feedstock as a significant inedible substrate for bioplastic synthesis. Polyhydroxyalkanoates, polyurethanes, polylactic acid and starch-bioplastic are prevailing bio-based plastic comparably derived from lignocellulosic biomass. In forthcoming years bioplastic derived years’ bioplastic derived from lignocellulose will loom as valuable material in numerous fields for an extensive range of cutting-edge applications.

Francisco Javier Delgado Aguilar

Reseña del libro de Virginia García Acosta y Raymundo Padilla Lozoya (coordinadores) (2019). Historia y memoria de los huracanes y otros episodios hidrometeorológicos extremos en México. Cinco siglos: del año 5 pedernal a Janet. México: CIESAS/Universidad de Colima/Universidad Veracruzana.

Igor Manzura

The article discusses the problem of identification of prehistoric elites on the example of the Usatovo culture. Archaeological evidence allows us to discern in the culture three separate strata or classes which are conditionally designated as the Nobles, the Honoured, and the Commoners. Social elite represented a core within the noble class. It is distinguished by specific attributes which illustrate its attempts to resolve one of the most complex problems of any elite – to reconcile tension between “universalism” and “particularism”. The first quality is realized in ritual performance through manipulation of material objects whereas the second one is realized by means of sumptuary customs along with other methods. The emergence of the elites in the Usatovo culture became possible due to specific combination of objective factors which were successfully utilized by new social leaders.

Carrie Leonard, Victoria Violo

Acknowledgement of gender disparity in academia has been made in recent years, as have efforts to reduce this inequality. These efforts will be undermined if insufficient numbers of women qualify and are competitive for academic careers. The gender ratio at each graduate degree level has been examined in some studies, with findings suggesting that women’s representation has increased, and in some recent cases, achieved equality. These findings are promising as they could indicate that more women will soon qualify for early-career academic positions. Most of these studies, however, examine a specific—or narrow subset—of academic disciplines. Therefore, it remains unclear if these findings generalize across disciplines. Gambling researchers, and the graduate students they supervise, are a uniquely heterogeneous group representing multiple academic disciplines including health sciences, math, law, psychology, and sociology, among many more. Thus, gambling student researchers are a group who can be examined for gender equality at postgraduate levels, while reducing the impact of discipline specificity evident in previous investigations. The current study examined graduate-level scholarships from one Canadian funding agency (Alberta Gambling Research Institute), awarded from 2009 through 2019, for gender parity independent of academic discipline.

Chongyu Li

With the continuous development of the human resource management system, the academic circle pays more and more attention to the research of employee satisfaction analysis. As one of the important factors affecting corporate performance, employee satisfaction has a significant impact on fully mobilizing employee enthusiasm. This article uses the China Family Panel Studies (CFPS) database to explore the impact of working hours characteristics and work salary characteristics on the job satisfaction of employees in stateowned enterprises and private enterprises through ordered logit regression methods. The results found that: weekly working hours and annual work income have a significant impact on these two types of employees. However, in-kind benefits and cash benefits only have a significant impact on employees of private enterprises. The one-way commute time only has a significant impact on the employees of state-owned enterprises. On this basis, this article puts forward two suggestions to improve the pertinence of welfare, strengthen the role of welfare incentives, and the government to formulate a labor standard law related to working hours, in order to improve employee job satisfaction.

Alexandru ILIEȘ, Sorin Dacian BUHAȘ

University football has tradition in the Romanian political context. The first teams that made history in amateur and later professional football were founded in the early twentieth century by students who returned to the country after completing their studies abroad. Through this study, based on the experience in already traditional championships such as the British one, we propose a strategy for implementing such a dual system based on professional development and sports in the Romanian academic environment. The existence of 93 public and private universities (in 2020)2 with own specific infrastructure, 22 university centers and about 0.4 million students provide a "fertile ground" for such approach, for competitions with male and female teams. Through specific methods in the field of territorial planning and geography this study presents: the competitive design, the implementation strategy, human resources, infrastructure, spatial models with systemic functionality, etc. Sport in general and football in particular have proven to be the most effective ambassadors of a community, nation or institution etc.

Hugo Rochard

This article offers reflexive insights on a methodological approach experi­mented with collectives engaged in operations of ecological stewardship of their urban living environments. In addition to revealing a new theoretical agency of communities of human and non-human actors, the investment of certain processes of investigation influences the construction of the research object itself. This method reflects the principles of abduction for which research is always constructed in a situation of interaction between the investigator, the respondents and the object of the investigation. As the boundary between investigator and respondents becomes blurred, the adoption of a reflexive look at these corporal commitments reveals openings and troubles. Ultimately, the experimentation of a multi-species ethnographic relationship leads us to refine the starting hypothesis.

M. Acak, M.F. Korkmaz, C. Taskiran et al.

Purpose: In this study, our aim was to determine the effects of wrestling shoes, wrestling mats and wrestling styles on postural deformation of the foot and to elaborate its possible causes. Material: Study group comprised of 158 athletes (109 males, 59 females) from 26 different countries who participated in the 12th World University Wrestling Championship. Of the athletes, 102 (59 females, 43 males) performed in freestyle and 56 performed in Greco-Roman style. The age range of the athletes was 19 to 31 years and they have done wrestling for 3 to 18 years. Were evaluated to determine the relationship between flatfoot deformity and gender, age, wrestling style and years in the sport. Footprint parameters were used to determine and evaluate the overall structure of the foot. The Staheli and the Chippaux-Smirak indexes were used in the study. Statistical analyses were performed using the SPSS v.21.0 software, with the significance level set at α=0.05. Results: No significant relationship was found either between the gender of the wrestlers or their age and their pes planus state. A significant relationship was detected between the wrestling style performed and the wrestlers’ pes planus state, and between the years in the sport and their pes planus state. Conclusion: The fact that wrestlers wear the wrestling shoes for a long time can be a cause of pes planus. The center of mass of freestyle wrestlers shifts during continuous feet movement, and the surface of their soles extends the contact surface on the mat to maintain balance. This situation can also lead to a higher prevalence of pes planus in wrestlers. In addition, the wrestling shoes wrap around the Achilles tendon and thus the stretching of this tendon is restricted. Such restriction strengthens the opinion that freestyle wrestlers experience pes planus more.

Monica Schlobach

Research Framework: Many argue that the development of new information and communication technologies (ICT) would have given rise to a new way of retaining the emotional bond among transnational families. It would thus abolish the distance by establishing a virtual co-presence.Objectives: The objective is to understand, through the study of the use of ICT, how transnational families manage to keep strong their familyhood. It also intends to discuss the limits of these practices on their ability to continue to "make family transnationally."Methodology: The analysis is based on data collected through in-depth interviews with Montreal-based migrants and their family members in Brazil.Results: ICT has become a familiar tool in transnational family exchanges. They provide access both to ordinary and to special moments of family life. They give rise to new practices of family interactions. Nevertheless, they also imply constraints in the exchanges, as they appear to be an unsatisfactory solution to solve the problem of physical distance and separation.Conclusions: The use of ICT has become an incorporated habit in transnational family life, for its informative power on the daily life of members of the transnational family. Virtual co-presence, however, is limited as far as the expression of emotions and family solidarity are concerned. Contribution: The results presented allowed to identify the contributions, the ambivalences and the limits of the use of ICT to make family transnationally. They also revealed the formation of family micro-rituals, which act as mechanisms of regulation and expression of familyhood.

Anarbaev Anvar, Tursunov Obid, Kodirov Dilshod et al.

This paper presents the results of calculations to reduce greenhouse gas emissions in agricultural sectors of the Republic of Uzbekistan within the framework of the project: “Sustainable Agriculture Development and Climate Change Mitigation”. The initial data were the characteristics of the implemented installations based on renewable energy sources for the period of 2014-2018. Most of these installations were biogas settings based on the principle of anaerobic fermentation, as well as solar water heating and photovoltaic stations. The calculations were performed according to the “AMS-III.D” and “AMS-I.J” methods by the “Global Environmental Fund” experts. The developed computer programs were applied to calculate the arrival of radiation and the duration of sunshine during the year on the territory of Uzbekistan. According to the calculations, the reduction of greenhouse gas emissions was 1338840.5 tons of CO2 for the indicated period during the operation of installations based on renewable energy sources. Within the framework of this project, the total potential of generating electric energy from biogas settings and solar photovoltaic stations at the amount of 10,424 MWh was estimated.

D. G. Macrae, G. Stocking

Mazhari, M., Ferguson, J.

The toxic effect of herbicides on non- target microorganisms may influence degradation of organic matter resulting in changes to nutrient cycling. In the present study, different strains of bacteria incubated in media containing different concentrations of glyphosate and paraquat were assessed over a period of two incubation terms. The deleterious impact of the herbicide was observed as glyphosate and paraquate treatments led to a reduction in the bacterial population. Analysis of the colony- forming unit (CFUs) showed a declining in microbial growth from 0 to 24 hours of incubation in all concentrations of glyphosate followed by a steady declining rate of the bacterial population after 48 h. The greatest bacterial population developed in media containing concentrations of glyphosate and paraquat was observed with strains S13.3, while strains S55 and S35 showed the lowest biomass production in response to all concentrations of glyphosate and paraquat. Based on the results obtained, strain S13.3 was determined to be resistant to the herbicides examined and may be useful for bioremediation of these compounds in soil.

Szmigielska Magda, Wróbel Magdalena, Rybak Justyna

The release of such contaminants as metals into aquatic environment and its accumulation in sediment is a great concern due to the potential effect to the whole ecosystem. Water biocoenosis can change completely with the introduction metals into the water course. The aim of the study was to compare the water quality of three small streams contaminated with arsenic on the basis of multimetric diatom index IO and microbiotest designed to evaluate sediment toxicity (The Ostracodtoxkit F). The quality of three small streams located within Złoty Stok community in Lower Silesia (SW, Poland) has never been assessed with the biological methods before. What is more, the impact of arsenic on water biocoenosis has been rarely studied worldwide. Such studies have not been conducted before in Poland. The findings showed that each of used method classifies similarly three studied streams. The obtained results confirmed that the biological methods are the most reliable in the assessment of water quality.

W. Arens