Ultra-High Response Detection of Alcohols Based on CdS/MoS2 Composite

Hybrid CdS/MoS2 with branch and leaf shaped structures are successfully synthesized by hydrothermal method. It is applied to detect volatile organic compounds, a basic source of indoor air pollution with deleterious effects on the human health. The sensor based on CdS/MoS2 displays an outstanding response to alcohols among numerous gases. Their response to 100 ppm ethanol and isopropanol reaches 56 and 94, respectively. Benefiting from the dendrite-like biomimetic structure and synergy effect of CdS and MoS2, the sensor exhibits higher response than traditional gas sensor. For multiple alcohols, the limit of detection reached ppb level. In addition, by comparing the response of ethanol, isopropanol, isoamyl alcohol and their mixtures with acetone and methanal, a strong resistance interference is observed. This work proved that the modified detector holds broad promise in the detection of alcohols.

Pengamanan Lontar Digital Dengan Tanda Tangan Digital Menggunakan Algoritma RSA

Lontar is a relic of cultural heritage whose basic source of manufacture is from rontal or tal leaves containing evidence of all records of aspects of ancient historical life which include historical values, religion, philosophy, medicine, literature and other sciences so that their sustainability needs to be maintained. Security of digital lontar will make it easier to preserve a lontar work so that it is not changed or falsified by irresponsible parties, where digital lontar in PDF format will be given a digital signature to maintain the authenticity of the document. Documents that are signed will be difficult for other parties to change, if the contents of a digital ejection are changed it will cause the digital signature to change. Based on the research conducted, from the results of testing the security of digital ejection with digital signatures using the RSA algorithm, the test results from RMSE (Root Mean Square Error) for description results with an average of 69.7794143. The larger or random the description results, the more complex the description results will be.

Czech companies will have to deal with import of labour

Labour market or supply and demand for labour is determined by how individuals demand work (supply) and how the offer of jobs is from the side of companies (demand). This is a very important issue, as it is a part of the main factor markets. The data on labour market are used for analysing the movement of labour market. Thanks to this, it is possible to forecast its approximate development. The basic source are data from the database of the Ministry of Labour and Social Affairs of the Czech Republic. The objective of this paper is to analyse the development of supply and demand for labour in the years 2010-2020 and forecast its development until 2025. The analysis of time series is performed using the method of artificial neural networks, which enables the analysis of the development between 2010 and 2020 and forecasting the further development of supply and demand for labour until the year 2025. The research shows that the development until the year 2025 will not be very favourable. The demand will be much greater than the supply, which means there will be more vacancies than workers. To fill the vacancies and be able to further operate, companies will try to solve this situation by hiring workers from other countries. The results of the paper being submitted may serve for other labour market research.

Do companies in the Czech Republic feel a decline in ICT graduates?

The aim of this paper is to determine the possible cause of lagging Czech companies in the field of HR transformation. The basic source of data is data from the Czech Statistical Office. The paper uses the method of classification analysis of graduates in the field of information and communication technologies. The paper is divided into two parts, where the first part deals with the evaluation of tabular data and the second with the testing of the established hypothesis (H0). The number of graduates in the field of information and communication technologies in the Czech Republic has been steadily declining since 2015, although the results achieved so far do not indicate a significant change, which could be the main cause of Czech companies lagging behind in HR transformation. The low involvement of graduates in this field is also caused by older and backward employees in companies, who do not like to change established systems.

Kerentanan Sosial Ekonomi dan Resiliensi Keluarga Petani Miskin Selama Pandemi COVID-19: Kasus Dari Madura

The Covid-19 pandemic, in addition its health impacts, also has a serious impact to people's socioeconomic vulnerabilities. Socio-economic vulnerabilities due to the Covid-19 pandemic forced people to adapt, one of which was a poor peasant family in rural Madura. This article presents the results of research focusing on the socio-economic vulnerability of poor peasant family as well as various efforts in dealing with the Covid-19 pandemic. Using descriptive qualitative approach and data collection method through participation observation, interviews, airy records, and documentation, this study revealed that the socioeconomic vulnerability of poor peasant family in Ponteh Village resulted from social restrictions so that the household income sector decreased. Though they have to adaptation meet the cost of household consumption, health threats in the Covid-19 pandemic. Adaptation strategy carried out by poor peasant family in rural areas is, first, building group solidarity according to values and norms that are strong, for example, mutual help in the form of basic needs. Second, every poor peasant family makes use of very strong family ties. Parental assistance as a source of supporting living is now a basic source used to make ends meet during pandemics. Third, poor peasant family in rural areas minimize household in spending and utilizing-social networks for business development. The contribution of this article is to provide views, efforts, accompanied by resilience in keeping the public from the threat of future pandemics.

At the Crossroad of Confessions

The focus of my study is a mid-seventeenth-century Latin manuscript prayer book. Its most basic characteristics should attract the attention of scholars of the period since it was compiled by a Lutheran married couple from Prešov for their individual religious practice. In examining the prayer book, I was able to identify the basic source of the manuscript, which was previously unknown to researchers: the compendium of the German Lutheran author Philipp Kegel. The manuscript follows the structure of Kegel’s volume and also extracts a number of texts from the German author’s work, which mainly collects the writings of medieval church fathers. In addition to Kegel, I have also been able to identify a few other sources; mainly the writings of Lutheran authors from Germany (Johann Arndt, Johann Gerhardt, Johann Rist, and Johann Michael Dilherr). I give a description of the physical characteristics of the manuscript, its illustrations, the hymns that accompany the prayers, and the copying hands. I will also attempt to identify the latter more precisely. The first compilers of the manuscript were Andreas Glosius and his wife Catharina Musoniana from Prešov. I also organize the biographical data we have about their life and will correct the certainly erroneous provenance of Andreas Glosius, whose name appears in the context of several important contemporary manuscripts, including the gradual of Prešov. In the last part of my paper, I will also show how well known and popular Philipp Kegel’s work was in the early modern Kingdom of Hungary. This is necessary because, although the data show that there was a very lively reception of Philipp Kegel’s work in Hungary, previous scholars have only tangentially dealt with the Hungarian presence of his work.

Modeling of Energy Consumption and Reduction of Pollutant Emissions in a Walking Beam Furnace Using the Expert Method—Case Study

This paper presents an algorithm for modeling electricity and natural gas consumption in a walking furnace with the use of artificial intelligence and simulation methods, depending on the length of the rolling campaign and the established rolling program. This algorithm is the basis for the development of a proposal for a set of minimum requirements characterizing the Best Available Techniques (BAT) for beam furnaces intended for hot rolling, taking into account the requirements set out in national regulations and the recommendations described in the BREF reference documents. This information should be taken into account when drawing up an application for an integrated permit, as well as when setting emission limit values. Based on the constructed algorithm, it was shown that depending on their type and technical specification, the analyzed projects will offer measurable economic benefits in the form of reducing the amount of energy consumed by 1,076,400 kWh during the implementation of 50 rolling campaigns to reduce gas by 14,625 GJ and environmental benefits in the form of reduction of pollutant emissions into the atmosphere 80–360 g/Mg. The constructed algorithm was validated in the Dosimis-3 program, based on a discrete event-driven simulation. Thanks to this representation of the model, its user can interactively participate in changes that take place in the model and thus evaluate its behavior. The model, verified in real conditions, can be the basic source of information for making effective operational technological decisions related to the preparation of production at the rolling mill as part of planning and long-term activities.

The impacts of economic globalization on agricultural value added in developing countries

Countries in the world have various indices for the implementation of economic globalization (EG). This refers to positive and negative impacts arising from its implementation, especially in agriculture. This sector is still a basic source of existence in developing countries. At the same time, these countries have been unable to optimize their agricultural value-added (AVA) and only earn a low level of income. That way, developing countries need to take advantage of EG to increase income from agricultural exports and farmers’ welfare. Other than that, there has been no study examining the impacts of EG on AVA in developing countries. So, this study intends to evaluate the impacts of the exchange rates, foreign direct investment (FDI) inflows, total agricultural export values, agricultural import duties, and fertilizer imports on AVA in developing countries. The panel data technique is used to assess its impact in 17 developing countries during 2006–2018. The study showed that FDI inflows and agricultural export values increase AVA in developing countries. In this study, EG positively impacts developing countries, but its implementation must pay attention to achieve sustainable development goals. We recommend developing countries focus on investments in human capital and technologies (or R&D), ensure foreign investors collaborate with local agricultural firms, increase agricultural exports, and create a conducive economic system

SOCIAL MEDIA, PUBLIC SPHERE AND THE POLITICAL TRAGEDIES OF CONTEMPORARY ETHIOPIA

Ethiopia since 1991 G.C has been adopting democracy and federalism as constitutional frameworks of the state. The core objective to maintain the two political cultures is the presence of multiple cultural identities within the state and the actual need for an intersubjective discussion on the public sphere. And one of the major areas of public sphere is the social media. As per the Constitution of the Federal Democratic Republic of Ethiopia citizens of Ethiopia have the democratic rights of Thoughts, Opinion and Expression (Art. 29), so in social media it is natural to expect that individuals talk on the different affairs of the state ‘freely’. Basically the social media is serving as an instrument in maintaining discursive talk among individuals. However, it has been also producing considerable social turmoil across the world. The same is what is encountering in Ethiopia today; on the one hand, social media as a communication platform allows people to communicate effectively with sharing alternative views, attitudes and forming democratic consensus on the social anomalies and responses, and on the other hand, the media is the sphere of communicative maladjustment where misunderstanding, extremism and miscommunication is producing. In the present Ethiopian context the basic source of communication and miscommunication in the social media is the ‘pluriversal identities’ of the cultural horizon. Taking this as a crucial object, this article will discuss the connection between democracy, federalism and social media in the current Ethiopia. On the top of this, the study aims at exploring the following issues: the social media sphere in Ethiopia, the modern and postmodern challenges of social media in Ethiopia and alternatives for the social media reconstruction.

Study on Detection of Adulteration Components in Packed Milk

Milk is a basic source of human diets, which contain essential materials such as carbohydrates, protein, lipids, minerals, vitamins and essential amino acids. In order to keep milk temporarily fresh, some unethical activities are usually adapted to prevent the financial losses due to the spoilage of milk during its transportation and sale. The aim of study is to identifying the adulterants presents in the samples and compare them with the standard products. The method used for the detection of neutralizers in milk is rosalic acid and forthe detection of formalin there was used Hehner’s Test in this study. The study had done on seven type of packed milk (MILK PACK NESTLE, MILK PACK PLUS, QUDRAT, TARANG, TAZA, EVERY DAY and KHATIZ). Finally the result showed, neutralizer which are using for the neutralizing of acidity in milk were negative in mentioned samples, but formalin which is used for the extending of milk shelf life was positive in MILK PACK NESTLE and TAZA PACKED MILK samples. From total 42 samples, we detected adulteration of formalin in 12 (28-30%) samples. We are advising to Society for the rejections of MILK PACK NESTLE and TAZA PACKED MILK as use, and related administrations’ must control the above packed milk imports.