bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of Thermal-Oxygen Aging on Temperature Stability of Styrene-Butadiene-Styrene–Modified Asphalt
Authors: Wang Lan , Xue Zhihua , Zhang Le
Published: September 2021

In order to explore the effect of aging on the temperature stability of styrene-butadiene-styrene (SBS)-modified asphalt, matrix asphalt and SBS-modified asphalt were used as the control to conduct short-term aging and long-term aging. Three indexes of asphalt with different aging degrees were tested to analyze the change rule of each index. The specific heat capacity and phase transition temperature of SBS-modified asphalt before and after aging were studied by differential scanning calorimetry (DSC). At last, the mechanism was studied by attenuated total reflection Fourier infrared spectroscopy. The results show that the penetration and ductility of matrix asphalt and SBS-modified asphalt decrease with the deepening of aging. The difference is that the softening point of matrix asphalt shows an increasing trend, whereas the softening point of SBS-modified asphalt shows a changing rule of first decreasing and then rising. The addition of SBS modifier can increase the specific heat capacity of asphalt and change the viscosity-flow conversion temperature. The degradation of SBS modifier leads to the decrease of the specific heat capacity after long-term aging, whereas the viscosity-flow conversion temperature decreases first and then rises, which is consistent with the change law of softening point. As a special block copolymer, the specific heat capacity of SBS modifier is determined by the polymer butadiene with lower glass transition temperature, whereas the softening point changes with the polymer styrene with higher glass transition temperature, which is consistent with the change rule of functional group index, softening point, and specific heat capacity of SBS-modified asphalt before and after aging.
Analysis of the Effects of Voids in Mineral Aggregate on Pavement Fatigue Performance Using AASHTOWare Pavement ME Design and FlexPAVE
Authors: Mirzahosseini Mohammadreza , Lee Jusang , Olek Jan , Jeon Jongmyung , Nantung Tommy E.
Published: September 2021

Deviation of volumetric properties of asphalt mixtures, such as voids in mineral aggregates (VMA), from the agency–specified thresholds can cause minor to significant changes in pavement performance. This paper presents the results of the study on the effects of the deficiency of VMA parameters (ΔVMADesign) on the fatigue performance of asphalt pavements. Dynamic modulus and fatigue tests were performed on two types of mixtures (one with 9.5-mm nominal maximum aggregate size (NMAS) and the second one with 19-mm NMAS) at three levels of ΔVMADesign. The results were analyzed using two simulation models (i.e., FlexPAVE 1.1Alpha and AASHTOWare Pavement ME Design version 2.3.0 (Pavement ME)). The results showed that fatigue service life reduction was linearly correlated to an increase in ΔVMADesign and could reach almost 50 % for a pavement with ΔVMADesign of 3 %. Additionally, while both Pavement ME and FlexPAVE showed comparable results in terms of top-down cracking/damage predictions, the results of the analysis performed by FlexPAVE in terms of bottom-up damage prediction were more consistent with respect to the expected behavior of pavement structure in terms of damage.
Low serum 1,25(OH)2D3 in end-stage renal disease: is reduced 1α-hydroxylase the only problem?
Authors: Huish Sharon A , Jenkinson Carl , Dunn Janet A , Meredith David J , Bland Rosemary , Hewison Martin
Published: September 2021

Low serum 1,25-dihydroxyvitamin D (1,25(OH)2D) in end-stage renal disease (ESRD) is considered a consequence of elevated fibroblast growth factor 23 (FGF23) and concomitant reduced activity of renal 1α-hydroxylase (CYP27B1). Current ESRD treatment strategies to increase serum calcium and suppress secondary hyperparathyroidism involve supplementation with vitamin D analogues that circumvent 1α-hydroxylase. This overlooks the potential importance of 25-hydroxyvitamin D (25(OH)D) deficiency as a contributor to low serum 1,25(OH)2D. We investigated the effects of vitamin D (cholecalciferol) supplementation (40,000 IU for 12 weeks and maintenance dose of 20,000 IU fortnightly), on multiple serum vitamin D metabolites (25(OH)D, 1,25(OH)2D3 and 24,25(OH)2D3) in 55 haemodialysis patients. Baseline and 12 month data were compared using related-samples Wilcoxon signed rank test. All patients remained on active vitamin D analogues as part of routine ESRD care. 1,25(OH)2D3 levels were low at baseline (normal range: 60–120 pmol/L). Cholecalciferol supplementation normalised both serum 25(OH)D and 1,25(OH)2D3. Median serum 25(OH)D increased from 35.1 nmol/L (IQR: 23.0–47.5 nmol/L) to 119.9 nmol/L (IQR: 99.5–143.3 nmol/L) (P < 0.001). Median serum 1,25(OH)2D3 and 24,25(OH)2D3 increased from 48.3 pmol/L (IQR: 35.9–57.9 pmol/L) and 3.8 nmol/L (IQR: 2.3–6.0 nmol/L) to 96.2 pmol/L (IQR: 77.1–130.6 pmol/L) and 12.3 nmol/L (IQR: 9–16.4 nmol/L), respectively (P < 0.001). A non-significant reduction in daily active vitamin D analogue dose occurred, 0.94 µmcg at baseline to 0.77 µmcg at 12 months (P = 0.73). The ability to synthesise 1,25(OH)2D3 in ESRD is maintained but is substrate dependent, and serum 25(OH)D was a limiting factor at baseline. Therefore, 1,25(OH)2D3 deficiency in ESRD is partly a consequence of 25(OH)D deficiency, rather than solely due to reduced 1α-hydroxylase activity as suggested by current treatment strategies.
Thyroid autoimmunity and metabolic syndrome: a nationwide population-based study
Authors: Kim Hye Jeong , Park Sang Joon , Park Hyeong Kyu , Byun Dong Won , Suh Kyoil , Yoo Myung Hi
Published: September 2021

Objective

Recent studies have reported that thyroid hormone levels are associated with metabolic syndrome (MetS) even in euthyroid subjects. However, the association between thyroid autoimmunity and MetS is uncertain. This study aimed to investigate the relationship between thyroid autoimmunity and MetS in a large cohort study of euthyroid subjects.

Methods

A total of 4775 participants aged ≥19 years from the Korea National Health and Nutrition Examination Survey VI (2013–2015) with anti-thyroid peroxidase antibody (TPOAb) results and normal thyroid functions were included in this study. Subjects were grouped according to thyroid autoimmunity (positivity of TPOAb). We estimated the odds ratios (ORs) for MetS according to TPOAb positivity using logistic regression models, adjusted for potential confounders.

Results

Of the study subjects, 25% (n = 1206) were diagnosed with MetS. Subjects with MetS showed higher median TPOAb levels (6.3 vs 6.8 IU/mL, P < 0.001) and higher positivity of TPOAb (5 vs 7%, P = 0.002) than those without MetS. There was a significant difference in prevalence of MetS depending on the TPOAb positivity (25% vs 33%, P = 0.002). Subjects with TPOAb positive had a significantly greater risk of abdominal obesity (OR 1.675, 95% CI: 1.302–2.154, P < 0.001), low high-density lipoprotein cholesterol (OR: 1.603, 95% CI: 1.244–2.066, P < 0.001) and elevated blood pressure (OR: 1.418, 95% CI: 1.099–1.829, P = 0.007) as compared to those with TPOAb negative. Positivity of TPOAb was a significant risk factor for MetS even after adjusting for confounding variables including age, sex, household income, education, smoking, alcohol consumption, walking activity, thyroid-stimulating hormone and free thyroxine (OR: 1.389, 95% CI: 1.048–1.841, P = 0.022).

Conclusion

In euthyroid subjects, thyroid autoimmunity is associated with MetS. Further large longitudinal studies are needed to clarify causality.
Клим Поліщук: матеріали до біографії
Authors: Омельчук Олеся
Published: September 2021

У статті подано опис низки фактів і матеріалів, що увійшли до кримінальної справи, заведеної на Клима Поліщука 1929 року. Мета статті полягає в тому, аби ввести в науковий літературознавчий обіг нові відомості про життя і діяльність письменника. У розвідці використано метод історико-біографічного коментаря. Результати. Вперше опубліковано текст скарги ув’язненого К. Поліщука, що увійшла до заведеної на нього кримінальної справи. Це дало змогу підтвердити достовірність свідчень В. Юрченка, які він опублікував про К. Поліщука на початку 1930-х років. Наукова новизна. Стаття доповнює і уточнює біографічні дані, пов’язані з життям і творчістю К. Поліщука. Практичне значення. Розвідка може стати підґрунтям для написання наукової біографії К. Поліщука та вивчення українського літературного процесу першої третини ХХ століття.
Марія Шаповалова: життєвий і творчий шлях науковця
Authors: Кравець Ярема
Published: September 2021

У статті говориться про життєвий і творчий шлях Марії Семенівни Шаповалової (1915-1994), відомого літературознавця, багаторічного доцента кафедри світової літератури Львівського національного університету імені Івана Франка. Метою статті є висвітлення важливіших етапів діяльності педагога і науковця, який працював у галузі українського шекспірознавства, англійського красного письменства різних часів і періодів, англійського робітничого роману. Дослідницька методика. У статті використовується системний підхід із застосуванням історико-літературознавчого, генетичного та порівняльного методів. На основі цих методів з’ясовано внесок ученого в історію українського шекспірознавства, дослідження давньої і сучасної англійської літератури, опрацювання вагомих навчальних посібників і підручників з історії західноєвропейських літератур середніх віків та Відродження. Результати. У дослідженні подано майже півстолітній творчий шлях науковця, розповідь про задум і здійснення вартісної праці про входження В. Шекспіра в український літературний процес. Наукова новизна. Стаття є першою студією в українському літературознавстві про багатогранну діяльність доцента Марії Шаповалової, зокрема щодо опрацювання підручника з історії західноєвропейської літератури, який своїми трьома виданнями по сьогодні залишається одним із найавторитетніших вузівських підручників. Практична вартість. Стаття може стати підґрунтям для зацікавленого прочитання наукової спадщини ученого-літературознавця, пізнання історії викладання світової літератури у Франковому виші.
Vasyl Stefanyk and the German Literature (on the question of typology of translations and original short story heritage of the Ukrainian writer)
Authors: Венгринович Наталія , Венгринович Андрій
Published: September 2021

Aim. The idea of the article stems from an insufficient number of scientific investigations that would help to better understand the creative engagement in the German literature of the young Ukrainian master of narrative V. Stefanyk, who had a deep understanding of the problem of mutual enrichment of aesthetic perception by means of translation as one of important aspects of literary relations. He himself creatively perceived other writers’ achievements, thus placing the Ukrainian literature on an adequate pan-European spiritual level. The purpose of this research is to supplement the existing explorations with the studies of German parallels in V. Stefanyk’s creative work. Methods. For comparative analysis, a number of scientific research methods have been applied, such as the historical-literary, typological and biographical approaches. Results. For translation, a translator usually selects those creative works that are closest to him, that correspond to his aesthetic preferences, and are consonant with the author’s mood. Though V. Stefanyk’s German-language literature translation heritage is scarce, it nevertheless witnesses the Ukrainian short-story writer’s awareness of the world literary process, his constant search for creative works close to his own literary sentiments, in particular works on peasant topics, which raise complex moral and social issues. Therefore, his translation activity, though indirectly, contributed to the development of creative literary manner and original unique writing style. Scientific novelty. By means of comparative juxtaposition, the authors analyze the comparative-typological features in creative works of V. Stefanyk and some selected representatives of the German-language literature. Practical significance. Key outcomes of the research can be applied in further investigation of the common motives in short stories and their translations.
French-language reception of Vasyl Stefanyk’s creativive work
Authors: Яцків Наталія
Published: September 2021

The article deals with analysis of the history of V. Stefanyk’s appearance in the artistic dimension of the French literature, starting from the first references in French-language periodicals by virtue of translations and ending with solid scientific investigations. The aim of the research is to systematize critical reviews, trace the evolution of critical interpretation and prove the agreement of the creative method of the Ukrainian short story writer with the development of the Western European literary process. The French public’s acquaintance with Stefanyk’s creative work took its rise in 1899 and lasts up to this day, just as we approach the celebration of the 150th anniversary of his birth. The extraordinary talent of the Pokuttia word-painter, who treated the story as a canvas, painting it with words, fascinates us with its scanty emotionalism, intense expressiveness and impressionistic picturesqueness of the works.
Дилогія Гіш Джен: як Мона Чанг стає Чанговіц
Authors: Стулов Юрій
Published: September 2021

У статті розглянуто дилогію відомої американської письменниці китайського походження Гіш Джен, де вона на прикладі двох поколінь китайських іміґрантів простежує їхні складності на шляху до асиміляції в американському суспільстві, пов’язані з проблемами із самоідентифікацією і вибором життєвих пріоритетів. Метою статті є виявити відмінності у підходах представників двох поколінь до ціннісних орієнтацій та вплив і взаємопроникнення китайської й американської культур на формування гібридної особистості. Дослідницька методика. У статті використано системний підхід з опертям на культурно-історичний та біографічний методи. Результати. З’ясована своєрідність романів дилогії, в яких порушені важливі для іміґрантів проблеми самоідентифікації і вростання в ґрунт нової батьківщини, знаходження в ній свого місця без розриву з історичною батьківщиною. Наукова новизна. Стаття присвячена творчості ще недостатньо дослідженої китайської письменниці, яка торкається болісних тем американського суспільства. Практична цінність. Стаття може слугувати базою для подальшого вивчення творчості транскультурних авторів, більш глибокого ознайомлення з їхньою поетикою в теоретичному та перекладознавчому аспектах.
Архетип різдвяної казки в українській та хорватській інтерпретаціях
Authors: Кравець Ольга
Published: September 2021

Стаття присвячена вивченню жанру різдвяної казки, «святочному оповіданню» на прикладі порівняльного аналізу окремих творів українських письменників Зої Вишгородської, Івана Керницького та класика хорватської дитячої літератури Нади Івелич. Метою цього дослідження є проаналізувати твори різдвяного циклу трьох самобутніх авторів, двох письменників української діяспори – Зої Вишгородської та Івана Керницького, а також хорватської дитячої письменниці Нади Івелич. Автори мають у своєму доробку однойменні твори із назвою «Різдвяна казка», дуже різні за змістом, але й, водночас, дуже близькі тематично. Дослідницька методика базується на залученні порівняльного, інтертекстуального, описового методів та методу аналізу. Результати. На основі зіставного аналізу творів українських письменників Зої Вишгородської та Івана Керницького, а також хорватської письменниці Нади Івелич вивчається та простежується розвиток жанру різдвяної казки (святочного оповідання) в українській та хорватській літературах минулого століття. Новизна дослідження. Авторка пропонує компаративну літературознавчу студію для вивчення жанру різдвяної казки (святочного оповідання) в українській та хорватській літературах. Практична вартість. Твори українських письменників та хорватської письменниці, класика дитячої літератури, можуть бути цікаві для вивчення в курсах університетських дисциплін – історії літератури, дитячої літератури. Порівняльний аспект вивчення цієї проблеми можна використовувати як ілюстративний матеріал для різних вибіркових курсів.
Akcijų biržoje prekiaujamų fondų arbitražo veiklos poveikio juos sudarančių akcijų rinkos verčių pokyčių bendram kitimui vertinimas
Authors:   , Dičpinigaitienė Viktorija
Published: September 2021

The evaluation of the impact of the stock exchange-traded funds arbitrage activity on the co-movement of equities’ market values changes
Mikrodalelių, susidedančių iš DNR ir magnio pirofosfato, sintezė ir jų panaudojimas in vitro baltymų ekspresijai
Authors:   , Galinis Robertas
Published: September 2021

Synthesis of DNA and magnesium pyrophosphate particles and their use for protein expression in vitro
Physical bases for determination of scattering kernels from incomplete data in grid-less X-ray imaging
Authors:   Medical Radiophysics Department, Faculty of Radiophysics, Electronics and Computer Systems, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine, Danyk A.Yu. , Sudakov O.O.
Published: September 2021

A mathematical model for the determination of X-ray scattering kernels’ shapes based on incomplete simulation or measurement data was introduced and tested using a mathematical phantom. The model is originally intended for low-dose X-ray imaging without anti-scatter grids. The proposed model fits different kinds of symmetrical and asymmetrical scattering kernels in different tissues well enough for practical applications. Kernels asymmetry is mostly caused by irradiation of the object near the boundaries of different tissues. The model describes a variety of asymmetrical kernels by proposed “sectoral” members. Application of the proposed model in scattering compensation procedure reduces resulting error up to 50 % for “wide” scattering kernels.
Coronavirus Disease 2019: Psychological Stress and Cardiovascular Diseases
Authors: Komiyama Maki , Hasegawa Koji
Published: September 2021

Minimising deaths due to coronavirus disease 2019 (COVID-19) is a global priority. However, the harmful effects are not limited to those directly related to the infection. The COVID-19 pandemic has also had a serious impact on the mental health of the general population. An increasing number of people are exhibiting signs of depression and an increase in suicides has also been noted around the world. Mental health issues may be linked to starting or increasing the use of addictive substances, such as tobacco, alcohol and drugs, along with increased overweight and obesity resulting from changes in eating habits. These issues can impact cardiovascular diseases because of worsened risk factor control. This review discusses the impact of the COVID-19 pandemic on mental health and cardiovascular risk factors. It will also summarise the measures that can be taken to maintain good mental health and their importance in mitigating cardiovascular disease.
Role of indicators of hemodynamics and homeostasis in patients with acute gynecological diseases
Authors:   Medical Institute of Sumy State University, Ukraine, Terehov V.A.
Published: September 2021

In recent years, there has been a significant increase in urgent conditions in gynecology. The use of inadequate and sometimes unjustified surgical interventions due to the peculiarities of the clinical course of the disease, the difficulties of early diagnosis, uncertainty of treatment tactics can lead to complications and even death of the patient. Therefore, improving early diagnosis and emergency care is one of the priorities of modern medicine. The objective: to improve the early diagnosis and comprehensive treatment of acute gynecological conditions to study the structure and features of urgent gynecological diseases in modern conditions; analyze indicators of hemodynamics and homeostasis (including immune) to reduce possible complications in patients with acute gynecological diseases. Materials and methods. A 5-year retrospective clinical and anamnestic analysis of 1261 case histories of patients with various acute gynecological diseases, the most common of which are acute pelvic inflammatory disease (PID), uterine and intraperitoneal bleeding, impaired blood supply to internal tumors. Patients in the comparative groups were comparable in age and course of the pathological process in the genitals. Results. The study found that among acute gynecological diseases dominated by acute PID (41.4%), uterine bleeding (31.6%), intra-abdominal bleeding (20.8%), impaired blood supply to tumors of the internal genitalia (6.2%), and in the last two groups the incidence increased. The age of patients varied significantly depending on the type of pathology. Clinical manifestations of acute PID and impaired blood supply to tumors of the internal genitalia in most cases were characterized by a predominance of pain and intoxication syndromes. Intra-abdominal and uterine bleeding was dominated by symptoms associated with hemodynamic disturbances and posthemorrhagic anemia. A high frequency of anemia of toxic genesis was observed in patients with acute PID and impaired blood supply to tumors of the internal genitalia. Conclusion. In modern conditions, the percentage of patients in need of emergency care is increasing, mainly due to an increase in the number of patients with intraperitoneal bleeding and impaired blood supply to tumors of the uterus and ovaries. The course of urgent gynecological diseases is accompanied by a violation of the adaptive-regulatory mechanisms of detoxification, indicators of homeostasis, immune system, hemodynamics, acid-base state of the blood. Given the clinical picture of the disease and the established diagnosis, it is necessary to develop individual management tactics for each patient. Keywords: emergency gynecology, acute abdomen, intraperitoneal bleeding, pelvic inflammatory disease, uterine bleeding, posthemorrhagic anemia, intoxication syndrome.
Analytical approaches for discriminating native lard from other animal fats
Authors: Marikkar Nazrim , Alinovi Marcello , Chiavaro Emma
Published: September 2021

Establishing the distinguishable characteristics of lard from other common animal fats might be helpful for authentication initiatives in foods and feeds. In this study, fatty acid and triacylglycerol compositions, thermal and spectroscopic characteristics of native lard (NL), respectively, were compared with those of beef tallow (BT), mutton tallow (MT), and chicken fat (CF) by using gas liquid chromatography (GLC), high-performance liquid chromatography (HPLC), and differential scanning calorimetry (DSC). GLC analysis showed that the comparison of the overall fatty acid data might not be suitable for the discrimination of different animal fats, but the use of the principal component analysis and the percent palmitic acid enrichment factor [PAEF (%)] calculations were useful. HPLC analysis showed that NL displayed a TAG profile, which was quite different from those of either BT or MT, but appeared to be closely similar to that of CF. Results of DSC thermal analysis showed that both melting and crystallization curves of NL were remarkably different from those of other animal fats.
Quality and safety evaluation of new tomato cultivars
Authors: Rapa Mattia , Ciano Salvatore , Gobbi Laura , Ruggieri Roberto , Vinci Giuliana
Published: September 2021

Tomato (Solanum lycopersicum) is a dietary source of bioactive compounds and breeding programs continuously create new cultivars with different nutritional and organoleptic characteristics. The aim of this work is to provide a quality and safety assessment of new tomato cultivars: Bamano, Dulcemiel and Sugarland. Eight biogenic amines, total phenolic content and antioxidant activity (DPPH and ABTS assays) have been determined. Tyramine was not detected in any samples. Sugarland was characterized by a high content of serotonin (266.87 ± 11.16 mg/kg) and phenolic compounds (303.15 ± 21.62 mgGAE/kg). Moreover, multivariate statistical analyses were applied to the data matrix.
Determining consumption preferences of consumers considering quality attributes of drinking water
Authors: Aşkan Emine , Topcu Yavuz , Şahin Ayça Nur
Published: September 2021

The aim of the study was to determine the main factors affecting the consumption preferences of consumers by considering the quality characteristics of drinking water according to the regions where they reside. For this pur-pose, the data obtained from 400 consumers living in the central districts of Iğdır province were used for Factor Analysis and Two-Step Clustering Analysis. Research results reported that physiological needs of the consumers residing in region I were based on the physiological and physical quality of the water in their drinking water consumption preference, consumers in region II relied on the chemical quality of the tap water, and consumers in region III focused on the cost advantages of tap water depending on the chemical quality of tap water. Therefore, supplying differentiated bottled drinking water in hygienic conditions according to physical and physiological quality standards of drinking water for consumers in region I, ensuring the protection and access of local water resources suitable for chemical quality characteristics to consumers in region II, and maintaining the reliability of local water resources with good chemical quality and low cost of supply and sustainability of their use for consumers in region III can have positive effects on consumption satisfaction.
Comparison of some functional properties and protein profiles of different protein sources with egg components
Authors: Köstekli Büyükcan Mine , Karakaya Sibel
Published: September 2021

Emulsifying and foaming properties of plant and animal-sourced proteins; wheat protein hydrolysates (WP1, WP2, and WP3), potato protein isolates (PP1, PP2), pea proteins isolates (PeP1, PeP2), whey protein concentrate (WPC), and buttermilk powder (BMP) were compared with the egg white powder (EWP) and egg yolk powder (EYP). Foaming capacity, stability, emulsion activity, stability, heat stability, morphology, and electrophoretic protein profiles were determined. The proteins representing competitive emulsifying functions were PeP1, WPC, and BMP. Heat treatment for 30 min at 80°C remarkably reduced the emulsion activity (EA) of EYP. Our findings demonstrated that patatin-rich potato protein (PP1), an allergen-free and vegan option, has great potential to replace the foaming function of the egg white. The relationship between the protein profiles of the samples and their functional properties was further discussed in detail.
Food purchasing, preservation, and eating behavior during COVID-19 pandemic
Authors: Bölek Sibel
Published: September 2021

Due to the highly infectious virus known as COVID-19 impacting the lives of the populace, more than any other event in recent memory, there is a pandemic in the world. In order to determine food purchasing behavior and eating habits, food preservation techniques and source of knowledge about COVID-19, 992 consumers living in İstanbul, the most populous city in Turkey, were surveyed. The questionnaire was disseminated to participants via an online platform. Thirty questions, including the demographics of participants, changes in purchasing behavior, knowledge, and attitudes about food preservation techniques, changes in eating habits, and source of knowledge about COVID-19, were asked. The results of this study surveyed that COVID-19 has changed food purchasing and eating habits of Turkish consumers significantly (p < 0.05). During the survey in late March of 2020 and late December of 2020, about 65% of respondents have tried to consume more food that boost the immune system and 58% of the respondents have been more willing to buy fresh products. Consumers have greatly adopted preserving of food stuffs by freezing during quarantine days. This survey revealed that the effective use of media tools could increase awareness and lead to behavioral changes that can reduce the spread of COVID-19, especially in con-sumers aged over 65 years.
Incorporation of essential oils in Iranian traditional animal oil: an assessment of physicochemical and sensory assessment
Authors: Azizi Maliheh , Fazeli Fatemeh , Mohammadi Mehrdad , Mousavi Khaneghah Amin
Published: September 2021

This study aimed to incorporate the herbal essential oils (Ziziphora tenuior L. (Z. tenuior), Ferulago angulata (F. angulata), and Bunium persicum (B. persicum)) all in three levels (5, 7, and 10% w/w) and tertiary butyl hydroquinone (100, 200, and 300 ppm) to evaluate the oxidation stability of Iranian animal oil (IAO). Z. tenuior, F. angulata, and B. persicum (5, 7, and 10% w/w) and tertiary butyl hydroquinone (100, 200, and 300 ppm) were added to IAO. The physicochemical properties and color analysis, and sensory characteristics (odor, taste, rancidity, and overall acceptability) of the treatments were investigated on days 0, 7, 14, 21, and 28. The results showed that increasing the amounts of Z. tenuior, F. angulata, and B. persicum was associated with reducing acid, peroxide, and thiobarbituric acid values. It also lowered brightness and yellowness while the oxidative stability of the IAO significantly was increasing. It was concluded that the incorporation of B. persicum had the highest effectiveness regarding the proposed criteria with the least effect on sensory properties.
Effect of natural antioxidants and vegetable fiber on quality properties of fish sausage produced from Silver carp (Hypophthalmichthys molitrix)
Authors: Mahdavi Ebrahim , Ariaii Peiman
Published: September 2021

In this study, production of low-fat, nitrite-free sausage based on Silver carp surimi was performed. In order to replace oils, inulin fiber (IF) was used; natural preservatives such as grape pomace extract (GE) and nisin (NI) were used as nitrite replacements with modified atmosphere packaging (MAP: 70% CO2 + 30% N2). For this purpose; five treatments including, T1: control, T2: control + MAP, T3: IF 5% + MAP, T4: IF5% + GE0.5% + MAP, and T5: IF5% + GE0.5% + NI 0.5% + MAP, were prepared. The physicochemical and texture properties of sausage at the beginning of storage and chemicals (Peroxide value, pH, and color index) and microbial index (Total count and psychrotrophic bacteria) during 42 days’ storage in the refrigerator (4 ± 1°C) were evaluated. The results showed that the use of natural preservatives had no effect on the physicochemical properties of the sausage (P > 0.05), but the FI had a positive effect on the texture characteristics (the firmness increased and elasticity decreased), increased moisture and ash, and reduced the fat content of sausages (P < 0.05). All in all, the best results among the treatment containing natural preservative was T5, in all microbial and chemical tests there was no significant difference with T1 (P > 0.05). All in all, a functional product with properties such as fiber and natural antioxidants, low fat and nitrite-free can be produced.
Characterization of functional fish ham produced from Silver carp (Hypophthalmichthys molitrix) surimi enriched with natural antioxidant and vegetable fiber
Authors: Mahdavi Ebrahim , Ariaii Peiman
Published: September 2021

In this study, the effect of grape pomace (GE), orange peel extract (OE), and nisin (N) with modified atmosphere packaging (MAP: 70% CO2 + 30% N2) was investigated on the quality and shelf life of ham produced from low fat Silver carp surimi (containing inulin fiber [FI] and salatrim [S]) kept in the refrigerator with T1: control (con-taining nitrite), T2: control + MAP, T3: GE 0.5%+ FI 5% +OE 0.5% +N 0.5%, T4: S 5%+ OE 0.5%+ GE 0.5% +N 0.5% + MAP, T5: FI 2.5%+ S 2.5%+ GE 0.5%+ OE 0.5%+ N 0.5%+ MAP. The texture characteristics of ham at the beginning of storage, cooking loss, chemical indices (peroxide value, pH, color index), and microbial (total count bacteria, psychrotrophic bacteria, mold and yeast, Clostridium botulinum) during 42 days storage in the refriger-ator (4 ± 1°C) were evaluated. The results of the tests were analyzed according to Duncan’s by SPSS software with 95% confidence. The results showed that inulin and salatrim fibers have a positive effect on the texture and cooking loss of ham and inulin had a better effect, so the value of cooking loss in treatment 3 was 1.62% and control treatment was 2.09%. Using three natural preservatives along with MAP could slow down the oxidative spoilage, microbial and color index changes in ham. These combinations also inhibited the growth of C. botulinum. In most tests examined, treatment 3 showed no significant difference with treatment 1 (ham containing nitrite) (P > 0.05), so this treatment shows that natural additives (nitrite replacement) improve the quality properties of low-fat ham.
Implementación de una estrategia webquest por medio de las tecnologías del aprendizaje y el conocimiento [tac] para el fortalecimiento de la lecto-escritura en la educación media
Authors: Osorio-Pita Maria Isabel , Cabas-Gómez Paulina Ermelinda , Córdoba-Buenaños Eleana
Published: September 2021

Las Tecnologías del Aprendizaje y Conocimiento [TAC] promueven cambios en los procesos de enseñanza y aprendizaje, ya que potencian las competencias digitales por medio del uso de las Tecnologías de la Información y Comunicación [TIC] y generan aprendizajes significativos. Este proyecto determina el impacto de la implementación de una estrategia de aprendizaje WebQuest, propiciando el uso de TAC para el fortalecimiento de habilidades de lecto-escritura, en la educación media. Los objetivos del proyecto consisten en realizar el análisis de la repercusión de la instauración de la estrategia e indagar acerca de los significados que tiene las experiencias de aula mediadas por TIC en aprovechamiento de las TAC, para los estudiantes de la Institución Educativa Laura Vicuña. La metodología con la cual se ejecuta el proyecto es investigación acción, en ella se recolectan y analizan datos de tipo cuantitativo y cualitativo. Los resultados sugieren que la incorporación de las pedagogías activas con la explotación de las TIC y fomento de las TAC, favorecen el desarrollo de las habilidades necesarias para la lecto-escritura y motivan procesos de enseñanza y aprendizaje por medio de enfoques constructivistas.
Implementación de un sistema de olfato electrónico para la adquisición de volátiles provenientes de almendras de cacao seco operado mediante el uso de una interfaz gráfica en Labview
Authors: Flórez-Martínez Alexander , Vargas-Flórez Jesus Omar , Perez-Waltero Harold Esneider , Quintana-Fuentes Lucas Fernando
Published: September 2021

El presente artículo centra la investigación en la implementación de un sistema de olfato electrónico, construido con 9 sensores de gases del fabricante MQ, los cuales tienen la función de percibir los volátiles de almendras de cacao seco. Los acutadores del sistema lo conforman dos válvulas solenoides y una bomba para flujo de aire encargada de hacer cirular el volatil al interior de la cámara de medida o cámara de sensores. El control automatico se raliza mediante el uso de PC y software LabView. Finalmente, la conexión entre el PC y la matriz de sensores de gases, se realiza mediante el uso de una tarjeta de adquisición Arduino MEGA, con resolución de 10 bits. El desarrollo del sistema surge debido a que se desea monitorear la calidad del aroma del grano de cacao trayendo beneficios para el productor al momento de relizar la venta del producto, garantizando el buen aroma que caracteriza el cacao colombiano a nivel mundial, si el aroma no es agradable directamente afecta el precio de venta o probablemente no se pueda comercializar, en otros escenarios el veredicto de calidad queda sometido a la subjetividad humana.
Additives based on vegetable biomass to improve the stabilisation of expansive clay soil
Authors: Orlandi Sandra , Taverna María Eugenia , Villada Yurany Andrea , Piqué Teresa , Laskowski Cecilia , Nicolau Verónica Viviana , Estenoz Diana Alejandra , Manzanal Diego
Published: September 2021

This paper investigates the effect of different bio-based additives on the expansiveness of an Argentinian natural clayey soil (CR-clay). CR-clay was characterised to determine (a) the Atterberg parameters and other index properties, (b) the particle size distribution by laser diffraction, (c) the specific surface area (S e) and cationic exchange capacity by the methylene blue method, (d) the mineralogy by using X-ray diffraction, (e) the functional groups by Fourier transform infrared spectroscopy (FTIR) and (f) the free swelling and swelling pressure by using an odometer. Starches from potato, cassava, corn and rice flour; seeds and derivatives from flax, sunflower and quinoa; kraft lignin; and lignosulfonates were evaluated as soil stabilisation additives on the basis of measurements of Atterberg parameters. Reductions in the soil plasticity index (PI) between 10 and 60% were generally observed. Lignins exhibited a very good balance between the ability to improve soil stabilisation, low costs, environment-friendliness and availability. In particular, kraft lignin showed high performance as a CR-clay stabiliser with a PI reduction of 46%. The stabilisation mechanism of lignin and CR-clay blends was investigated using Z potential and FTIR. Based on the experimental results, lignins constitute promising alternatives to the additives used as stabilisers of expansive soils, particularly for reducing free-swell and swelling pressure.
Radical Scavenging and Antibacterial Activities of Ruta buxbaumii Poir. (Rutaceae) Growing in Raman Mountain-Batman
Authors: KAPLAN Alevcan
Published: September 2021

The members of the Rutaceae genus have found a wide application area in traditional medicine in many countries from ancient times to today, they have been used for many purposes in Turkey. Ruta species have many pharmacological properties such as abortive treatment, as antirheumatic, hypoglycemic, ant-helmintic, antipyretic, antiepileptic, in the treatment of diabetes, epilepsy, vertigo, headache and eye dise-ases, in the elimination of intestinal worms and in poisoning. In this paper, it was aimed to determine the antimicrobial and radical scavenging activities of methanol (MeOH), Petroleum ether, EtOAc and ethanol (EtOH) extracts of wild Ruta buxbaumii Poir. Antimicrobial activities of extracts were evaluated using disc diffusion method. The extracts were also found to have microbe inhibiting activities. The antioxidant properties and activities were evaluated by using total phenolic content (TPC), total flavonoid content (TFC), DPPH free radical scavenging activity. The results showed that while ethanol extract of Ruta buxbaumii was higher (54.10±0.13) than other extracts in terms of total phenolic substance content, met-hanol and ethanol extracts were found higher (47.52±0.19 and 46.86±0.16) than other extracts in terms of total flavonoid content, respectively. Also, radical scavenging activities such as 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH) of extracts was investigated, and according to the solvent, it was revealed that MeOH extracts (73.6 %) of Ruta buxbaumii exhibited high activity. This study indicates that R. buxbaumii Poir. extracts could be used as a natural medical application in antimicrobial and antioxidant treatments.
Mini-Public Replication: Emotions and Deliberation in the Citizens' Initiative Review Redux
Authors: Morrell Michael E. , Johnson Genevieve Fuji , Black Laura W
Published: September 2021

Scholars have increasingly urged researchers to evaluate prior findings through replication studies that can help test, refine, and extend claims made in previous research. We agree that this is an important aspect of social science that deliberative scholarship has underutilized. To help fill this lacunae, we test our previous findings from an analysis of data from Citizen Initiative Reviews (CIRs) in 2016 by replicating our methodology on data from CIRs in 2018. We set out to determine if the patterns we discovered earlier and developed into the Deliberative Procedures Frame theory appeared again in 2018 CIRs. We find repeating across the two sets of data, including consistent levels of enthusiasm, slow rising happiness, and the relationships between certain emotions on the final day and participants’ evaluations of deliberative quality, and these indicate that our theory remains a viable explanation for emotions in mini-public deliberation. We remain confident that the sources of anger and frustration identified in our previous analysis remains correct. On the basis of this replication, we clarify that what we call the Procedures Frame enables the identification of the most likely time points during deliberation when the threat to democratic legitimacy and the risk to quality deliberation will most likely arise and result in expressions of emotion. Finally, our study reinforces how important deliberative design is to the role of emotions in the success of mini-publics.
Specificity and opportunities of transboundary regional protected natural area on the example of the Moscow region
Authors:   Lomonosov Moscow State University, Kadetov N.G. , Suslova E.G.
Published: September 2021

The territories located near the administrative boundaries of the subjects of the federation are often relatively intact and are of interest in conservation terms. This is largely due to their poor availability, due to which communities with a significant concentration of rare and protected species are found here. Often, regional protected natural areas are confined to such border territories. A number of examples of the functioning of protected areas of various status and categories near the borders of the Moscow region and the possibility of creating adjacent protected areas of various dimensions and categories in neighboring subjects of the federation are considered.
Beetles of the «Basegi» nature reserve: research study analysis
Authors:   Perm State University, Sannikov P.Yu. , Kozminykh V.O.
Published: September 2021

The information about investigation (since 1982) of beetles (Insecta, Coleoptera) of the Nature Reserve «Basegi» is given. Informational base of this article, details of data interpretation are marked. Spatial aspects for studies of the «Basegi» Reserve, its ecosystems and term distribution of investigation are noticed. Biodiversirsity of identified families of beetles in various areas is characterized. In addition, the most prospective directions of further research are given.
Assessment of the pyrogenic pollution of the soil-plant system on the base of geochemical markers for a local model of transport pressure
Authors:   Peoples’ Friendship University of Russia (RUDN University), Khaustov A.P. , Redina M.M. ,   Peoples’ Friendship University of Russia (RUDN University)
Published: September 2021

The choice of informative indicators for local estimates of the transport pressure on urban soil-plant systems is a serious problem of preserving green spaces. The spatial variations of the characteristics of the flows of marker compounds (polycyclic aromatic hydrocarbons (PAHs) acting as geochemical markers), the integral characteristics of the toxicity of soil pollutants, roots and aerial parts of plants TEQ, as well as the values of indicator ratios based on the concentrations of PAHs in the media are considered. The object of local research is the RUDN University campus (Moscow, Russia) with an adjacent forest park area. The territory is located in the zone of influence of heavy traffic flows and is experiencing an intense load from emissions. The state of the territory is monitored at 33 points according to a unique monitoring program. Pollution indicators showed different informativeness for constructing transport pressure models. Various modes of pollution in 3 functional zones of the territory are revealed; the zones of influence of the main sources of pollution are justified. The indicator ratios confirmed the leading source of pollution –pyrogenic emissions of transport, but they are to varying degrees sensitive to the activity of local pollution sources. Priority routes of PAH intake and accumulation in the components of the soil and plant system were identified. For the first time, a correlation between a number of ratios and indicators of polyarene contamination toxicity (TEQ) was established.
Перспективы экономического сотрудничества России и Казахстана
Authors: Сипаро Константин Алексеевич
Published: September 2021

Цель: статья посвящена исследованию перспектив экономического сотрудничества России и Казахстана, выявлению сфер соприкосновения и взаимных интересов. Обсуждение: проведен анализ совместного товарооборота, изменения импорта и экспорта, изучены существующие инвестиционные потоки, имеющиеся программы и стратегии сотрудничества, а также влияние пандемии на торговые отношения стран в 2020 году. Изучено соответствие прогнозов на 2020 год реальным показателям в условии пандемии, рассмотрены скорректированные прогнозы на ближайшие несколько лет. Результаты: в результате исследования автором были сделаны выводы, что отношения России и Казахстана на данный момент носят скорее политический, а не экономический характер, что связано с разницей в развитии промышленности и экономики и сырьевой направленностью импорта Казахстана. Страны имеют потенциал взаимодействия в трудовой, научной и территориально-транспортной сферах, транспортный коридор «Один пояс – один путь» несет в себе большие перспективы дальнейшего сотрудничества и развития.
Управление человеческими ресурсами как основа повышения надежности высокотехнологичного предприятия
Authors: Казьмина Ирина Владимировна , Рогов Николай Викторович , Попова Илона Витальевна
Published: September 2021

Цель: проанализировать модели управления человеческими ресурсами, комплексное применение которых позволит повысить надежность высокотехнологичного предприятия и его конкурентоспособность. Обсуждение: в условиях усиливающейся волатильности экономики, а также ухудшения социально-политической ситуации перед высокотехнологичными предприятиями становится все более актуальной проблема поддержания надежности функционирования и рыночной конкурентоспособности, в том числе за счет снижения издержек. Часто эта проблема решается путем сокращения персонала предприятий, а также проведением мероприятий, направленных на оптимизацию управления человеческими ресурсами. Однако подобные действия не всегда позволяют достигнуть заданных целей. Результаты: в работе предложены жесткий и мягкий подходы к управлению персоналом. Жесткий подход к управлению человеческими ресурсами основан на тесной интеграции политики в области человеческих ресурсов с бизнес-стратегией, которая рассматривает сотрудников как ресурс, которым нужно управлять так же рационально, как и любым другим ресурсом, используемым для получения максимальной отдачи. Мягкий подход рассматривает сотрудников как ценные активы и источник конкурентного преимущества благодаря их приверженности и высокому уровню квалификации и производительности.