573 research outputs found
Investigation of the Influence of Antimicrobial Preparations on the Shelf Life of Broccoli Cabbage
Studies of the effect of antimicrobial agents on the conservation of broccoli cabbage have been conducted. The late hybrids of broccoli Ironman F1, Agassi F1, Beaumont F1, grown under the conditions of the Forest-Steppe of Ukraine were studied. The content of the main components of the chemical composition (dry substances, dry soluble substances, sugars, vitamin C) of broccoli cabbage is analyzed depending on the characteristics of the hybrid. The effect of antimicrobial treatment on the natural loss of cabbage, microbiological lesions during storage has been studied. Antimicrobial preparations Baikal EM-1 (dilution of working solution in water 1: 500), 0.5 % solution of citric, 0.2 % benzoic, 0.05 % sorbic acid, and also 0.5:0.5 % solution of vitamins C and P (ascorutin), water for the preparation of solutions had a temperature of 23 ... 25 Ā°C.The processing of fruit and vegetable products with various chemicals is aimed at prolonging the shelf life, increasing the shelf life and increasing the yield of commercial products at the end of storage.It is established that the natural loss of broccoli cabbage during storage depends on the characteristics of the hybrid and the type of antimicrobial preparation. Treatment with preparations increases the shelf life of broccoli cabbage to 30 - 50 days with a natural weight loss of up to 6.1 %, and ensures minimal disease burden.Treatment with antimicrobial agents reduces the loss of dry substances, dry soluble substances, sugars, vitamin C. The most effective is the treatment of broccoli with acids. It has been established that ascorbic acid is contained in broccoli cabbage, with hydrolysis from which ascorbic acid is split off, the content of which is increased.The maximum effective storage of broccoli cabbage at a temperature of 0 Ā± 1 oŠ” and relative humidity of 90-95 %, pretreatment with preparations of antimicrobial action.The proposed method of processing broccoli cabbage with antimicrobial preparations before storage allows the use of vegetable raw materials for post-harvest treatment. In the development of new, low-cost, environmentally friendly and affordable storage technologies, this is an important technique
Makna Pencapaian Prestasi Belajar Pada Mahasiswa Program Pascasarjana Dengan Peran Ganda
Penelitian ini bertujuan untuk memahami pengalaman dan makna pencapaian prestasi belajar pada mahasiswa Program Pascasarjana dengan peran ganda. Metode yang digunakan adalah metode kualitatif dengan pendekatan fenomenologi. Penelitian ini melibatkan tiga orang mahasiswa perempuan pada Program Pascasarjana yang berstatus menikah dan bekerja dengan indeks prestasi kumulatif diatas 3.50 sebagai kriteria partisipan. Teknik penggalian data dalam penelitian ini adalah wawancara mendalam. Teknik pemantapan kredibilitas yang digunakan adalah member check. Analisis data penelitian menggunakan Interpretative Phenomenological Analysis (IPA). Temuan pengalaman dalam mencapai prestasi belajar pada mahasiswa dengan peran ganda meliputi tertib presensi perkuliahan, mengerjakan tugas tepat waktu, mempersiapkan diri mengikuti ujian, dan melengkapi literatur yang mendukung pembelajaran. Temuan makna dalam mencapai prestasi belajar meliputi meningkatkan harga diri, membuat bangga keluarga, dan mencapai jenjang karir. Berdasarkan hasil temuan dalam penelitian, dapat disimpulkan bahwa pengalaman mahasiswa dengan peran ganda berbeda-beda dalam mencapai prestasi belajar, sehingga pengalaman tersebut juga dimaknai berbeda menurut persepsi masing-masing individu
Analysis of Hydrogen Sulphide (H2s) and Respiratory Symptoms in Scavengers at Ganet Landfill, Tanjungpinang, Riau
Background: The process of waste decomposition can cause air pollution, one of which is Hydrogen Sulfide (H2S) gas pollution. Airborne contaminants can spoil ambient air quality and cause respiratory diseases. This study aimed to determine the association between H2S level and respiratory symptoms in scavengers at Ganet landfill, Tanjungpinang City, Riau, Indonesia.
Subjects and Method: This was an analytic study with a cross-sectional design. The study was conducted at Ganet landfill, Tanjungpinang City, Riau, Indonesia. A sample of 30 scavengers who worked for 3 years was selected for this study. The dependent variable was respiratory symptoms. The independent variables were H2S level, working period, and exposure duration. The H2S level was measured by Aero Quol tools. Decree of the Minister of Environment No. 50 of 1996 set the standard of H2S= 0.02 ppm. Other variables were collected by questionnaire. The data were analyzed by chi-square test.
Results: Hydrogen sulfide (H2S) level was 0.10 ppm which exceeded the standard of 0.02 ppm. H2S exposure time 3-7 hours caused a cough (10%), fever (16.7%), cold (20%), and shortness of breath (6.7%). H2S exposure time 7-10 hours caused acough (26.7%), sore throat 3.3%, fever 16.7%, headache (3.3%), and fever (16.7%). Working period <8 years experienced cough (13.3%), fever (20%), headache (3.3%), fever (20%), and shortness of breath (3.3%). Working period ā„8 years experienced a cough (23.3%), sore throat (3.3%), fever (13.3%), cold (16.7%), and shortness of breath (3.3%).
Conclusion: Hydrogen sulfide (H2S) level in the air exceeding the quality standard, prolonged exposure, and working period cause respiratory symptoms.
Keywords: respiratory symptoms, Hydrogen sulfide, scavengers, landfil
Eksternalitas Industri Batu Bata Terhadap Sosial Ekonomi Di Kecamatan Tenayan Raya
This research was conducted in the District Tenayan Raya Pekanbaru, purpose this study was to analyze the industry externalities brick against the District socioeconomic Tenayan Kingdom. With this research is expected to provide assistance and information to masyarakata Pekanbaru city local government in planning the construction industry more environmentally friendly. The method used is simple random sampling method, with a population of 136 716 inhabitants and 44 191 heads of households, 1999 businesses and 64 traditional mechanical effort, and 3809 workers. In this study are all affected communities from the consequences of industrial pengelolahan bricks by sampling with as many as 44 respondents consisting of industry-traditional, mechanical industry, households and population according to labor scattered in villages in the District Tenayan Kingdom, namely the Village Kulim, Tangkerang East Village, Village Rejosari, and the Village Sail. Based on the results of research conducted, it is concluded that the impact of brick industry of the positive side of which is; employment, increase incomes of the population, increasing purchasing power, sufficiency life, being able to buy on credit, growing businesses such as the procurement of firewood , the growth of the property, the proliferation of the store building, the establishment of Credit Unions and as well as the need for transportation. While the negative impacts of industrial production activities on these bricks is a major tissue damage soil, pollution of air pollution, the difficulty of getting clean water, disease suffered by the community, length of illness, medical expenses incurred by the respondent
The effect of physical activity on positive body image in adolescent girls
Background. Our study was purposed to trace the dynamics in the body image of adolescent girls engaged in sport fencing. Positive body image is considered to be essential for mental health in adolescence and adulthood.
Objective. Physical activity and sports may affect the body image. But participation in aesthetic sports (figure skating, gymnastics) leads to less positive body image among girls. However, little is known about the effect of non-aesthetic sports on the positiveŠµ body image. Responses from our respondents indicate that non-aesthetic sports such as fencing may enlarge body acceptance, body functionality appraisal, and positive constitution appraisal. Also important, is that physical activity in fencing made body image more realistic.
Design. The study involved 83 adolescent girls aged 12-16 years. An experimental group included 38 adolescent girls who started fencing classes. The control group consisted of 45 girls of the same age who did not do sports or dance. Girls were examined on the day they begin their sports and 9 months after their start. We use āMeasurements by M. Feldenkraizā and the psychosemantic instrument āMy bodyā by K. N. Belogai. Also, the interview gave us information about participantsā height, weight as well as attitudes towards their bodies, their lifestyles, and their body compliance with internal and external beauty standards.
Results. In the beginning, adolescent girls had mostly negative body images: they did not evaluate its functionality, activity, and did not accept their body. But Studentās t-test for the dependent samples showed that among girls who practiced fencing for nine months, body acceptance, appraisal of body functionality and activity increased significantly, and the gap between perceived body proportions and the real ones decreased. Initially, girls appraised their bodies and limbs as longer than they actually were.
Conclusion. Fencing classes for 9 months changed girlsā body image to more realistic and subjectively acceptable. The findings suggest that integration of physical activity of functional sports in everyday life or therapy might be one route to facilitate positive body image development. This may support wellbeing among adolescents
Small Dense Low-Density Lipoprotein as Biomarker for Atherosclerotic Diseases
Low-density lipoprotein (LDL) plays a key role in the development and progression of atherosclerosis and cardiovascular disease. LDL consists of several subclasses of particles with different sizes and densities, including large buoyant (lb) and intermediate and small dense (sd) LDLs. It has been well documented that sdLDL has a greater atherogenic potential than that of other LDL subfractions and that sdLDL cholesterol (sdLDL-C) proportion is a better marker for prediction of cardiovascular disease than that of total LDL-C. Circulating sdLDL readily undergoes multiple atherogenic modifications in blood plasma, such as desialylation, glycation, and oxidation, that further increase its atherogenicity. Modified sdLDL is a potent inductor of inflammatory processes associated with cardiovascular disease. Several laboratory methods have been developed for separation of LDL subclasses, and the results obtained by different methods can not be directly compared in most cases. Recently, the development of homogeneous assays facilitated the LDL subfraction analysis making possible large clinical studies evaluating the significance of sdLDL in the development of cardiovascular disease. Further studies are needed to establish guidelines for sdLDL evaluation and correction in clinical practice
Use of Natural Products for Direct Anti-Atherosclerotic Therapy
Atherosclerosis and vascular disorders, which result from atherosclerosis, represent one of the major problems in the modern medicine and public health. Atherosclerosis is characterized by structural and functional changes of large arteries. The approaches for the treatment of atherosclerosis require at least the prevention of growth of atherosclerotic lesions and reduction in the lipid core mass, which would followed by plaque stabilization. Taken together, these approaches could theoretically result in the regression of arterial lesions. Atherosclerosis develops in the arterial wall and remains asymptomatic until ischemia of distal organs is evident. Therapy of clinical manifestations of atherosclerosis is largely aimed at reducing symptoms or affecting hemodynamic response and often does not affect the cause or course of disease, namely the atherosclerotic lesion itself. Of course, anti-atherosclerotic effects of statins revealed in many prospective clinical trials may be considered; however, statins have never been recognized as the drugs indicated just for direct treatment or prevention of atherosclerosis. They are used predominately in the course of hypolipidemic therapy, and the effects of treatment are estimated by success in reaching the target level of low density lipoprotein (LDL) cholesterol, but not the regression of atherosclerotic lesion or intimamedia thickness. The last should be considered as beneficial effect, which is mainly due to pleiotropic mechanisms of action. Atherosclerosis develops over many years, so anti-atherosclerotic therapy should be a long-term or even lifelong therapy. Tachyphylaxis, long-term toxicity and cost amongst other issues may present problems for the use of conventional medications in a long-term. Drugs based on natural products can be a good alternative
Internet behavior and social stratification in a single-industry town: overcoming or perpetuating inequality?
The paper analyzes the use of the Internet by various property groups of a Russian single-industry
town. According to the criterion of correlation of income with the subsistence minimum, five property groups are identified, and for each a description of socio-demographic characteristics and survival strategies is presented. Based on
the concept of three levels of the digital divide, the relationship between economic and digital capital is studied. Conclusions and results were obtained on the basis of statistical data collected during a survey of 500 households in the
town of Pavlovo, Nizhny Novgorod region, representing the model of a Russian single-industry town. The analysis
reveals that the hypothesis of a strong correlation between social inequality and the digital divide is confirmed: the
higher the level of material well-being of a family, the higher the level of its digital capital. At the same time, a characteristic feature of single-industry towns is a reduced level of material and property stratification between the allocated groups, due to the low resource content of the territory as a whole. The novelty of the study lies in obtaining results
that characterize the relationship between the material security of the family and the level of its digital capital in a
single-industry town. In this regard, the problems and prospects for the design and implementation of various programs
aimed at reducing the digital divide in single-industry towns are identified. The results of the study can contribute to
the improvement of the social management system and the implementation of the state social policy objectives in the
accumulation of digital capital of various social groups of residents of single-industry towns as one of the factors for
overcoming territorial socio-economic and cultural inequality in Russian society
The capabilities of MRI in the lung lesions diagnosis in patients with COVID-19
Backgrounds. The imaging diagnostic methods have become particularly important during the COVID-19 pandemic, and computed tomography of the thorax (CT) is considered to be the gold standard in the cases of lung lesions and in the evaluation of changes in the pulmonary parenchyma in dynamics. However, it is well known that the CT method is associated with a significant radiation dose, especially given the fact that repeated, and often reiterated control CT-tests are required for many patients who suffer COVID-19 or have recovered from the disease. In order to reduce the potential radiation exposure and receive some additional diagnostic information, we applied the magnetic resonance imaging (MRI) method for viral pneumonia at the FRCC of FMBA of Russia, which was redesigned as a center for the treatment of patients with COVID-19.
Aim. The aim is to evaluate the possibilities of the lung MRI in the diagnosis of pneumonia caused by the new coronaviral infection, to describe the specific symptoms of lung parenchyma lesions using various pulse sequences, and compare the results with the CT data.
Methods. The article is based on the practice of applying high-resolution computed tomography (HRCT) and MRI of the lungs in 15 patients with pneumonia caused by COVID-19.
Results. The comparison of the HRCT data and T2-weighted images (T2-WI) in 100% of cases revealed a complete correlation in the size, number and position of the lung tissue areas with reduced air saturation by the type of ground glass opacity and the consolidation zones. The level of linear and reticular changes detection in MRI reached 73.3%. Free fluid in the pleural cavities in a moderate and minimal volume was revealed on T2-WI in 12 patients (80% of cases), while it was not diagnosed by HRCT in all the cases. The mediastinal and intra-pulmonary lymph nodes were visualized distinctly. In T1-weighted images (T1-WI), the areas of ground glass opacity were either not visualized, or were represented by smaller areas when compared to the HRCV data and reticular changes were also displayed worse. In 73.3% cases, the consolidation zones on T1-WI fully corresponded or were almost similar in characteristics to changes visualized by HRCT. At the same time, it is worth noting that performing T1-WI out phase more clearly displayed the consolidation zones when compared to T1-WI in phase. Foci of increased signal on T1-WI with fat suppression were registered in 3 patients against the background of consolidation sites which in comparison with the data of T2-WI, would suggest the presence of parenchymal hemorrhages.
Conclusion. Lung MRI is a fairly sensitive method for identifying areas of ground glass opacity and consolidation, reticular changes and lymphadenopathy, and is superior to HRCT when displaying pleural effusion. Chest MRI may be recommended as a diagnostic method for suspected pulmonary COVID-19 lesion in children and pregnant women in order to exclude ionizing radiation exposure, as well as for monitoring the condition of lung tissue after viral pneumonia, if the patient was previously exposed to a high radiation dose
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