bluuebunny/crossref_metadata_2025 huggingface dataset:
Degree of naturalization of non-native plants on dumps
Authors: Kupiyanov Oleg , Kupiyanov Andrey , Turalin Baurjan
Published: August 2021

The presence of non-native plants on dumps in Kuzbass was studied. 26 plants included in the Black Book of Flora of Siberia were identified: Acer negundo, Amoria hybrida, Atriplex sagittata, Conium maculatum, Conyza canadensis, Echinochloa crusgalli, Echinocystis lobata, Echium vulgare, Elaeagnus angustifolia, Epilobium adenocaulon, Hordeum jubatum, Impatiens glandulifera, Lactuca serriola, Lepidium densiflorum, Lepidotheca suaveolens, Lupinus polyphyllus, Malus baccata, Medicago sativa, Melilotus officinalis, Oenothera villosa, Pastinaca sativa, Plantago lanceolata, Senecio vulgaris, Solidago сanadensis, Tripleurospermum inodorum, Ulmus pumila. Non-native plants occur at all stages of syngenesis and are of great importance in the formation of the vegetation on dumps. Colonophytes-agriophytes and epecophytes have a high degree of naturalization: Amoria hybrida (mountain taiga subbelt), Epilobium adenocaulon, Medicago sativa, Melilotus officinalis, Oenothera villosa (mountain taiga subbelt), Pastinaca sativa, Tripleurospermum inodorum, Ulmus pumila (southern forest-steppe subzone).
Ontomorphogenesis of some species of Hemerocallis genus in the conditions of the forest-steppe zone of the Novosibirsk region
Authors: Sedelnikova Lyudmila
Published: August 2021

Morpho-biological features of the development of 5 species of the genus Hemerocallis in the conditions of the forest-steppe zone of Western Siberia are studied. The results of ontomorphogenesis are presented. 8 ontogenetic states are described. It is noted that the pregenerative period of ontogenesis lasts 2 years. The generative period of ontogenesis occurs at 3 years in plants developed from seeds. The species specificity in the formation of generative organs in autumn (H. minor, H. citrina, H. lilio-asphodelus) and the spring growth period (H. fulva) was establish. A palynomorphological analysis of pollen grains of 4 species (H. citrina, H. minor, H. middendorfii, H. fulva) was carried out. The implicitly polycentric type of biomorph is determined. Complete morphological disintegration is characteristic of underground organs. The possibility of ex situ conservation of species by seed and vegetative reproduction is noted.
Soil enzyme activity in the dry valley phytocenoses under the influence ofAcer negundoL.
Authors: Tsandekova Oksana
Published: August 2021

The activity of hydrolytic enzymes in the soil of dry valley phytocenoses under the influence of ash-leaved maple was investigated. The research objects were selected taking into account the ranking of plantations by crown density. Soil samples were collected depending on the horizontal differentiation of communities in the undercrown and outer zones of phytogenic fields. An increase in the enzyme activity during the period of active tree growth among experimental and control samples was established. Among the enzymes, invertase demonstrated the highest activity, while protease and phosphatase were characterised by medium activity. An increased invertase activity was found in the trees with a high crown density as compared to the trees of other groups. The obtained data can be used as diagnostic indicators of soil condition for monitoring natural ecosystems.
The pigment complex ofSanguisorba officinalisL. in the native flora of Kemerovo Oblast
Authors: Yegorova Natalia , Yegorova Irina
Published: August 2021

The paper is devoted to studying the content of photosynthetic pigments ofSanguisorba officinalisL. leaves at different vegetative growth stages. Plants were obtained from several habitats (a flood forb-dominated meadow, a dry forb-dominated meadow, a birch forest). In the course of the research it was discovered that the concentration of the sum total of chlorophylls and carotenoids in great burnet leaves varied from the minimum values in May (2.58 – 2.82 mg/g) to the maximum values in July (3.07 – 3.70 mg/g) with a subsequent decrease in September (2.49 – 3.08 mg/g). Moreover, the light intensity and moistening of the habitat also have an effect on photosynthetic pigment content.
Response of biotesterLepidium sativumto the effects of native herb extracts and phytoinvaderSolidago canadensis
Authors: Zagurskaya Yulia , Ufimtsev Vladimir
Published: August 2021

The effects of aqueous extracts from aboveground parts ofSolidago canadensisL. as well as from dominant species of four main succession stages on the degraded forest soils of the Kemerovo region (Filipendula ulmaria, Chamaenerion angustifolium, Cirsium setosum, Poa pratensis) on the germinating capacity and speed ofLepidium sativumseeds were investigated. It was showed thatSolidago canadensisandFilipendula ulmariahave the greatest effect on the reduction of germinating capacity ofLepidium sativumseeds.
Hemeroby and homotoneity of plant communities: can we detect evident codependencies?
Authors: Zverev Andrei , Shchegoleva Natalia , Levitskaya Christina
Published: August 2021

The results of codependency analysis of 9 qualitative and 4 quantitative measures of plant communities homotoneity with statuses of their naturalness based on the application of the indicator value scale of hemeroby tolerance of South Siberian plants are presented. The highest correlation with level of naturalness was performed by qualitative multiplace measure of similarity by Jaccard.
Features of the introduction of representatives of the genusInula L.
Authors: Sorokopudov Vladimir , Kabanov Alexander , Bamatov Ibragim
Published: August 2021

Representatives of the genus Inula are promising for introduction due to their wide range of uses. So, many species are ornamental plants, promising for introduction, including in urban landscaping. Several species are medicinal plants, and even though recently the chemical composition of certain species of this genus has been studied, it was evident that this work must be continued to maximize the study of the possibilities of this genus. The article discusses the experience of introducing representatives of the genus Inula in the Main Botanical Garden named after N.V. Tsitsin RAS in the aspect of general introduction work both in the gardens of the former USSR, Western Europe, and the USA. The fact states that only natural species found in the natural flora of the USSR prevailed in the botanical gardens of the countries of the former USSR. At the same time, East Asian and Iranian-Turanian species are representatively represents in foreign botanical gardens. For the Russian flora and neighboring countries (within the borders of the former USSR), 33 species have been recorded, of which 15 species have undergone an introduction study at the Russian Academy Science (RAS). For all species studied at the GBS RAS, the flowering time in the conditions of central Russia was analyzed, the possibilities of using it both for decorative and other purposes were indicated. According to literary sources, the analysis of the component composition of raw materials of 16 natural species found within this region was carried out.
Agrotechnological assessment of the application of biological preparations and micronutrient fertilizers in spring wheat
Authors: Minchenko Zhanna , Bashkatov Alexander
Published: August 2021

The results of the research on the assessment of the effectiveness of the application of biological fertilizer Humistim and micronutrient fertilizers MicroFeed Complex and MicroFeed Extra Phosphorus in the cultivation of spring wheat under the conditions of Kursk Region are presented. As a result of the research, it was found that the preparations (Humistim, MicroFeed Complex and MicroFeed Extra Phosphorus) contributed to the better growth and development of spring wheat, reduced the development of leaf-stem diseases, increased the yield and quality of spring wheat grain. Thus, when treating seeds (5 l/t) and crops in the tillering phase and early booting (5 l/ha) with Humistim fertilizer, the development of septoria was 16.4 %, biological efficiency was 36.4 %, the yield of spring wheat increased by 0.55 t/ha, gluten content in the grain by 2.1%, compared with the control variant. When using micronutrient fertilizers MicroFeed Complex and MicroFeed Extra Phosphorus at a rate of 1.5 l/t for seed treatment and 1.5 l/ha for crop treatment in the tillering phase and early booting the biological efficiency was slightly lower and amounted to -32.6-33.7 %, the yield of spring wheat increased by 0.52-0.53 t/ha, the gluten content in the grain by 1.7-1.9 %. Calculations of economic efficiency showed that the treatment of seeds and crops of spring wheat with the biological fertilizer Humistim increased direct production costs by 825 rubl./ha, but due to the increase in yield, the cost of gross production increased by 6,600 rubl./ha, conditional net income by 5,775 rubl./ha, the cost of 1 ton of grain decreased by 511.55 rubles. The efficiency of using fertilizers with micronutrients MicroFeed Complex and MicroFeed Extra Phosphorus with similar methods of application was slightly lower: the value of conditional net income was 27,693.31-30,255.31 rubl./ha. MicroFeed Extra Phosphorus fertilizer provided a minimum increase in conditional net income 2,940 rubles/ha, which is due to its higher cost.
Influence of the anti-erosion complex on erosion-hydrological indicators and productivity of cultivated crops
Authors: Podlesnyh Igor , Zarudnaya Tatyana , Prushchik Anastasya , Tarasov Sergey
Published: August 2021

An assessment of the impact of the anti-erosion complex on the productivity of cultivated crops has presented on the example of many years of experience in contour-ameliorative agriculture of the Kursk FARC located in the northern part of the Medvensky district of the Kursk region. Two subtypes of chernozem represent the soil of the experiment: typical and leached. As anti-erosion measures, narrow-row stock-regulating poplar forest belts, reinforced by a simple hydraulic structure (ditch and rampart along the lower edge), have designed and planted along the contour at a distance of 216 m. There are no anti-erosion measures in the control catchment. Analysis of long-term data showed a decrease in runoff and the absence of soil washout in the catchment area with a system of narrow-row forest belts 38 years after the experiment has laid in comparison with the control. For the control catchment, a maximum soil washing of 22 t/ha recorded which significantly exceeds the permissible standards of flush. A significant increase in crop productivity averaged 5.2 feed units. The profitability of growing crops in fields with forest belts exceeds the control by almost 50%. The anti-erosion complex performs the task of strengthening the soil-protective role of the farming system.
Agro-economic substantiation of the feasibility of green manured fallow in sugar beet crop rotations of the Central Chernozem Region
Authors: Akimenko Alexander , Sviridov Vyacheslav , Dudkina Tatiana
Published: August 2021

The aim of the study is to find out the feasibility of including green manured fallow in specialized sugar beet crop rotations by comparing necessary assessment indicators with their values in a traditional crop rotation with black fallow against the background of unequal fertilization levels. The study was based on the analysis of experimental data from a long-term stationary experiment, laid out simultaneously in all fields and variants on typical chernozem in triplicate. The results are as follows: within the same fertilization levels, no significant differences in the yield of winter wheat (sugar beet precursor) were revealed, and the yield of sugar beet in a crop rotation with green manured fallow was stably higher (no more than 5 to 7%), an increase in yield relative to the control fertilizer variant (6 tons of manure per hectare per year) against the background of a double rate of manure in combination with mineral fertilizers amounted to 21.7 to 23.4% for wheat and 14.3 to 15.6% for beets with an increase in the productivity of crop rotations (in natural and value terms) by 1.2 times, but an increase in costs by 1.3 times caused an absolute decrease in the level of profitability by 23 to 25%. Differences in the assessment indicators for specific fertilization variants increased over time due to an unequal degree of soil fertility reproduction, and therefore in the fifth cycle of the crop rotation with black fallow turned out to be 1.1 to 1.3 times greater than in the green manured rotation.
The Effect of Different Concentrations of Energia-M Growth Regulator on the Growth and Development of Solánum tuberósum L. plants
Authors: Verizhnikova Anastasia , Konoshina Svetlana , Prudnikova Elena
Published: August 2021

The analysis of the available bibliographic data on the influence of silicon and its compounds on physiological processes in plants was carried out. The purpose of the work was to determine the effect of the organosilicon growth regulator Energia-M in concentrations of 10, 50, 80 mg/l on the growth and productivity of the early-ripening potato of the Zhukovsky cultivar grown on grey forest soils in a greenhouse. Low concentrations of Energia-M of 10, 50 mg/l did not influence the growth and growth activity significantly. Energia-M in a concentration of 80 mg/l increased the growth activity of the potato plants considerably. One of the objectives of the research was to study the antioxidant properties of the growth regulator Energia-M for Solánum tuberósum plants. Treatment of Solánum tuberósum with low concentrations of the organosilicon growth regulator Energia-M had little effect on the catalase activity in leaves and tubers, peroxidase activity decreased. When treating the Solánum tuberósum plants with a high concentration of the growth regulator Energy-M, 80 mg/l, the activity of catalase and peroxidase increased by 1.21 times. This pattern indicates the stimulation of metabolic processes in Solánum tuberósum plants grown on the grey forest soils of the Orel region with the application of the Energia-M growth regulator.
The assessment of the influence of the Gumiton organomineral complex on the development of root rot and structural elements of the winter wheat yield
Authors: Suslov Aleksey , Sviridenk Dimitry , Mamayev Vasiliy , Sychiova Irina
Published: August 2021

It has been shown that pre-sowing treatment increases field germination by 5.5%, and the preservation of plants after overwintering increases by 4.3%. Gumiton strengthened the work of the assimilation apparatus of the flag leaf due to an increase in leaf area by 29.3-49.1% and extended the life of plants. As a part of a tank mixture (Tabu Super, 1.5 l / t + Tertia, 2.5 l t), the drug allowed to reduce the prevalence of the root rot disease to 2.45-1.05% in comparison with the control. The organomineral complex provided the formation of a larger and more leveled grain with a mass of 1000 grains of 47.0-47.5 g, 43.9 g in the control; the grain nature is more than 780 g / dm 3, 751.7 g / dm 3, in the control. The use of Gumiton (seeds + tillering + piping) against the background of N 96 P 96 K 96 provided a high yield increase by 37.8%. To reduce the expenses of foliar fertilization with nitrogen fertilizers, the Gumiton organic-mineral complex should be recommended, since it is an element of greening in intensive technologies of winter wheat cultivation.
Development of kefir from non-traditional raw materials enriched with blackberry products
Authors: Belyaev Alexey , Mosyagin Vladimir , Ryzhkova Galina , Shvets Olga
Published: August 2021

The article presents data on the development of a new fermented milk product kefir from unconventional milk raw materials of goat’s milk and with the addition of blackberry vegetable additive. It is scientifically justified to use blackberry puree in the production technology, as well as the use of an unconventional type of milk for the manufacture of kefir. The influence of blackberries on the quality indicators of the developed kefir was also investigated. Comparative analysis of kefir with different concentrations of blackberries was carried out. According to the results of organoleptic evaluation, it was revealed that the consistency in all samples is uniform, without disturbing the clot. The taste is sour milk, slightly sharp, without extraneous flavors and odors. There is a good slightly sweet blackberry taste and smell with an increase in the concentration of the additive. It can also be noted from the results that kefir with blackberries is enriched with iron and other micro and macro elements in the comparison with the control sample. According to physicochemical indicators, the sample with 10% replacement of milk with mashed potatoes was identified as the closest to the control. The benefit of goat’s milk kefir is due to the presence of various substances necessary for life. The properties of raw materials used are preserved and even enhanced considering the use of fermentation. Such kefir has a lot of natural proteins, the product is easily digested and absorbed by the body. Goat’s kefir makes it possible to improve digestion and metabolic processes in regular consumption. This product reduces the risk of developing most intestinal infections because of rich composition. There are probiotics in such kefir that oppose the spread of harmful microflora in the intestine. The product includes potassium and magnesium minerals that are especially important for normal operation of heart and vessels. There is phosphorus and calcium in it. The joint action of these minerals activates the process of regeneration and strengthening of bone tissue.
The use of technological aids in the processing of bacterially infected sugar beet
Authors: Belyaeva Lyubov , Pruzhin Mikhail , Ostapenko Alla , Gurova Valentina
Published: August 2021

In the technology of beet sugar, technological aids play a special role, but the effectiveness of their complex application in the processing of bacterially infected sugar beets requires study. A three-factor laboratory experiment was carried out on the basis of the D-optimal Box-Behnken plan of the second order for three levels of variation of the studied factors the enzyme preparation Dextrasept 2, the antimicrobial agent Betacept and the defoamer Voltes FSS 93. The quality of 15 studied indicators of the state of intermediate products of the processes of obtaining and purification of diffusion juice, syrup was determined according to the generally accepted methods. The obtained regression equations adequately reflected the combined effect of these drugs on the state indicators. The highest variability (24.2-39.0%) was observed for the turbidity of juices and syrup, and the deposition rate; тhe chromaticity, the content of high-molecular compounds, lactic acid, and the height of the foam column were characterized by an average variation (12.7-17.8%). The sucrose content and the overall effect of purification of diffusion juice changed insignificantly (0.4-3.0%). Сontribution of the enzyme preparation to the variation of 6 indicators was more than 45%, 7 – 3942% and 2 – less than 10%. Under the influence of the antimicrobial agent, 6 indicators changed by more than 45%, 5 – 33-43% and 4 – less than 30%.
Managing the innovative development of the food industry
Authors: Kilimova Ludmila , Cherkashin Michael , Pykhtin Alexey , Kolmykova Tatyana
Published: August 2021

The present paper concerns the theoretical and methodological foundations and development of recommended practices for managing the innovative development of food industry business entities. The analysis of scientific and methodological approaches to the management of innovation activities and their possible application to the management of innovative development of food industry enterprises has been carried out. Management of business entities innovative development has been considered as a set of processes and activities of the management cycle, forms and methods of its organization, aimed at ensuring the innovative development of business entities, achieving the stated mission and innovative goals using a targeted impact on the components of the innovation potential. The key problems of innovative development of food industry enterprises have been identified. The article summarizes the dayto-day realities and defines the prospects for innovative development of food industry enterprises amid the pandemic.
Practical use of bioenergetic evaluation of sire-bulls with different quality of semen production
Authors: Samusenko Ludmila , Mamaev Andrey , Rodina Natalya , Sergeeva Ekaterina
Published: August 2021

For modern cattle industry, it is very important to evaluate bull-sires of different breeds by semen quality. The relevance of this problem arises in the context of development of artificial insemination technologies and biotechnology, the increasing role of sire-bulls in the genetic improvement of the herd, which makes it possible to significantly change the breed composition of herds in large regions in a short period of time.

In cattle breeding, sires of Black-and-white and Holstein black-and-white breeds, which are imported into the Russian Federation, are used almost throughout the country.

The purpose of the study is to assess the practical possibility of using the measured data of the bioelectric potential of superficially localized biologically active centres of sire-bulls to evaluate the quality of their semen production.

The subject of the study was the semen production of the bulls of Black-and-white and Holstein blackand-white breeds. The groups were formed according to the principle of analogues; the bulls were from 2 to 4 years old; the body weight was from 700 to 800 kg.

As a result of evaluating the sperm quality in sire-bulls with a high level of biopotential of the superficially localized biologically active centres, in the field of vision of the preparation, spermatozoa with an intact acrosome were found, which amounted to 96.5% of the total number of spermatozoa of the preparation and had a significant difference with the experimental group. The use of bioenergetic data of the superficially localized biologically active centres makes it possible to evaluate the sperm quality before semen collection and thereby, reduce the time and labour costs for low-quality ejaculates culling.
The importance of middlings in the beneficiation technology of Polish copper ore and new possibilities of their processing
Authors: Skorupska Bozena , Wieniewski Andrzej , Kubacz Norbert
Published: August 2021

In the paper, the middlings (tailings of I cleaner flotation) were characterized, and new possibilities of their processing were presented. The advantages of introducing a separate circuit for middlings processing were emphasized. This circuit should be adapted to the properties of the processed middlings and characterized by relative simplicity. An important element of the separate processing of middlings is grinding. The paper presents the advantages of the grinding process in the magnetic mill (MM), which has not been used until now in the enrichment of mineral raw materials. The importance of introducing for the difficult to treat middlings a separate flotation in a flotation machine characterized by a high dynamics of the process was emphasized.
Possibilities for reusing the waste from the process of Zn-Pb ore beneficiation
Authors: Cichy Krystian , Tobiczyk Kornel , Mańka Arkadiusz , Pajor Grażyna , ReguŁa Cezary
Published: August 2021

This paper discusses the areas of storage, resources, and granulometric and chemical characteristics of old Zn-Pb tailings stored in heaps in the city of Bytom area. It presents the results of laboratory tests for development of the technological flowsheet for transformation of the material into Zn- Pb sulfide concentrates and the results of trials in an experimental system of the beneficiation flowsheet which was developed. In the further part of the paper, the results of the research work on preparation of the tailings with reduced metal content for further use are presented.
The uptake of silver(I) from chloride solutions by amine extractants
Authors: Wejman Katarzyna , Pilśniak-Rabiega Magdalena
Published: August 2021

The amine extractants, bis(2-ethylhexyl)amine, N,N-dimethylethanolamine, and trioctylamine were used to recover silver(I) ions from chloride solutions. The effect of the pH, contact time, extractant concentration and reextraction were studied. It was found that extraction of silver(I) depended on the pH, extractant concentration and strongly on the contact time. Reextraction of Ag(I) ions from the loaded organic phase showed that the metal can be removed in over 50% for the three extractant using sodium hydroxide. The recovery of silver from the chloride leaching solutions were above 85% for bis(2-ethylhexyl)amine, above 58% for N,N-dimethylethanolamine, and above 70% for trioctylamine.
The sorption of metal ions on nanoscale zero-valent iron
Authors: Suponik Tomasz , Popczyk Marcin , Pierzyna Piotr
Published: August 2021

The injection of the colloidal suspensions of nano-iron (nZVI) into an aquifer is a novel method of removing metal ions from acidic water. In the batch tests, the equilibrium study of the sorption of metal ions, Cu(II) and Zn(II), on Green Tea nanoscale Zero-Valent Ion (GT-nZVI) was carried out. The sorption of metal ions on this reactive material was described using the Langmuir, Freundlich and Sips models. This last model described in a better way the sorption equilibrium in the tested range of concentrations and temperature. The value of determination coefficient (R2) for the Sips model, for copper and zinc, was 0.9735 to 0.9995, respectively. GT-nZVI has very good properties in removing Cu(II) and Zn(II) from acidic water. The high values of qmaxS, the maximum adsorption capacity in the Sips model, amounting to 348.0 and 267.3 mg/g for Cu(II) and Zn(II), indicate the high adsorption capacity of GT-nZVI. The analyzed metals have good or very good affinity with GT-nZVI.
Romanian bentonite and fly ash characterization and their use in heavy metal “in-situ” immobilization in polluted soils
Authors: Gherghe Săndica Liliana , Anger Ildiko , Moise Georgiana , Trusca Roxana
Published: August 2021

This article presents the characterization of the Romanian bentonite and fly ash, using different techniques: FAAS, XRD, FT-IR, SEM and EDAX and their evaluation as sorbents for heavy metals immobilization in polluted soils coming from mining and metallurgical activities. The applicability of bentonite and fly ash for Pb (II) and Zn (II) immobilization was studied using aqueous solutions of these metals. The influence of the pH and contact time were studied. The results shown that the Romanian bentonite and fly ash could be used for Pb (II) and Zn (II) immobilization in polluted soils from brownfields.
Influence of liberation of sulphide minerals on flotation of sedimentary copper ore
Authors: Bakalarz Alicja , Duchnowska Magdalena , Luszczkiewicz Andrzej
Published: August 2021

Ore liberation is one of the most important parameter in mineral processing, especially in flotation. To separate the valuable components from gangue minerals, it is necessary to liberate one from others. It is achieve primarily through crushing and grinding. These stages are one of the most expensive of mineral production. It is important to determine the adequate mineral liberation which would result in huge savings in the overall cost of flotation plant. The aim of the paper was the analysis of the influence of milling time on the laboratory flotation of the copper ore from stratiform Polish deposit. Three different milling time of copper ore in laboratory ball mill was applied. The flotation results were presented as the recovery-recovery and grade-recovery upgrading curves. The liberation of sulphides and the particle size of sulphides in flotation product were analysed and compared.
Silver recovery from zinc metallurgical sludge – analysis of solutions
Authors: Pietrzyk Stanisław , Palimąka Piotr , Stępień Michał , Krawczykowska Aldona , Tora Barbara , Fatyga Mirosław , Pajor Grażyna , Mańka Arkadiusz
Published: August 2021

During the hydrometallurgical process of zinc production, conducted in the ZGH “Bolesław” S.A. in Bukowno [Mine and Metallurgical Plant], about 40,000 tons of sludge is generated. After dehydration in the Larox filter presses, sludge contains ca. 16-18% of Zn, 20-25% of Fe, and 200-300 ppm of Ag. Next, sludge is transported to the Olkusz concentrator for flotation to obtain concentrate enriched with Ag (1,000-1,500 ppm). The concentrate is then sent to the HC “Miasteczko Śląskie” [zinc smelter], while the flotation tailings are subjected to recycling in waelz kiln in Bukowno to regain mainly Zn and Pb, in the form of oxides (also sent later to the HC “Miasteczko Śląskie”).
Physical chemical characterization of historical mining waste and ARD prediction tests
Authors: Filcenco-Olteanu Antoneta , Alakangas Lena , Fiuza Antoio , Zlagnean Marius , Tomus Nicolae
Published: August 2021

There are thousands of historical mine tailings and metallurgical residues present on inactive metal mining sites which have been abandoned. However, the potential release of dissolved metals, acidity, or suspended particulates from mine-waste dumps can be a serious and long-lasting problem. A variety of environmental impacts may occur at this abandoned mine sites and leading the list is acid generation, which is one of the main problems from metal mining. The objective of the present study was to characterize and evaluate the Romanian historical tailing of Sasar-Red Valley, near Baia Mare. This involved physical and chemical characterization of the materials and its acid generating potential. Sasar tailing impoundment contains 8.5 million m3of tailings and occupies an area of 32.5 hectares. Tailings samples were collected from different depths in three sampling points, and characterized by grain size, chemical elements concentration, elements distribution of elements in depth, paste pH, acid-base account and net acid generation tests. Acid base accounting (ABA) tests in conjunction with net acid generation (NAG) tests classified the samples into the category of ‘potentially acid generating’. This paper presents a synthesis of works performed in the Improve Resource Efficiency and Minimize Environmental Footprint (REMinE) project.
Possibilities of use of waste sulfur for the production of technical concrete
Authors: Grabowski Łukasz , Gliniak Maciej , Polek Daria
Published: August 2021

The article presents the results of research that focused on the selected physical properties of sulphur waste stabilized in concrete. The influence of replacing part of the cement on the physical properties of concrete was studied in the article. The concrete mixtures was modified by pure waste sulphur in amounts of 10, 20 and 30wt% of the cement. The results show that using sulphur admixture can reduce concrete absorptivity and make concrete more watertight.
Traumatisierung und schizophrene Störungen – eine
mehrdimensionale Betrachtung
Authors: Juckel Georg , Mavrogiorgou Paraskevi
Published: August 2021

Die Prävalenz von Traumatisierung bei schizophrenen Patienten ist
höher als in der Normalbevölkerung. Meta-Analysen zeigen
signifikante Zusammenhänge zwischen traumatischen Kindheitserfahrungen
und psychotischen Erkrankungen. Sowohl Patienten mit Schizophrenie, als auch
solche mit Posttraumatischer Belastungsstörung (PTBS) sind
gekennzeichnet durch hirnmorphologische (Amygdala und Hippocampus)
Veränderungen. Bei beiden Patientengruppen lassen sich zudem
neuroendokrinologische Veränderungen (Cortisol und α-Amylase),
aber auch ein schlechteres klinisches Outcome finden. In der psychodynamischen
Theoriediskussion finden sich nur wenige Ansätze zu Trauma und Psychose.
Hier ist vor allem Frieda Fromm-Reichmann zu nennen, die schon früh auf
die große Bedeutung kindlicher Traumatisierung vor allem von
Misshandlung und sexuellem Missbrauch für die spätere Entstehung
schizophrener Erkrankungen hinwies und erste Prinzipien analytischer
Psychosetherapie mit der Bearbeitung der durch das Trauma verursachten tiefen
Lebensangst im Hier und Jetzt der Übertragungssituation entwickelte. Es
wird vermutet, dass schizophrene Störungen und PTBS als
Trauma-Folgeerkrankungen aufzufassen sind, die in einem bislang unbekannten
Maße auch komorbid auftreten.
Relationship between Indirect Measures of Aerobic and Muscle Power with Frequency Speed of Kick Test Multiple Performance in Taekwondo Athletes
Authors: Albuquerque Maicon Rodrigues , Tavares Lucas Duarte , Longo Ariel Roberth , Caldeira Mesquita Paulo Henrique , Franchini Emerson
Published: August 2021

This study aimed to determine the relationship between indirect measures of aerobic power and muscular power with Frequency Speed of Kick Test performance using multiple sets (FSKTmult) in high-level taekwondo athletes. We used a known-group method to test differences in FSKTmult performance between two groups designated as lower and higher performance in both aerobic power and muscular power. In total, 42 international or national taekwondo athletes of both sexes performed the FSKTmult, Progressive Specific Taekwondo Test (PSTT), and countermovement jump (CMJ). Our results showed that average of the three CMJ was moderately correlated with FSKTmult performance (r=0.44); whereas PSTT and FSKTmult were highly correlated (r=0.83). Moreover, the groups formed by lower and higher performance of time to exhaustion in PSTT, as well as the average of CMJ were able to discriminate performance in the FSKTmult (p ≤0.05). The present study thus suggests that aerobic and muscle power are important for FSKTmult performance.
Effects of Sitagliptin as Monotherapy and Add-On to Metformin on
Weight Loss among Overweight and Obese Patients with Type 2 Diabetes: A
Systematic Review and Meta-Analysis
Authors: Janani Leila , Bamehr Hadi , Tanha Kiarash , Mirzabeigi Parastoo , Montazeri Hamed , Tarighi Parastoo
Published: August 2021

Background Sitagliptin is known as an antidiabetic agent inhibiting the
dipeptidyl peptidase-4. Although sitagliptin may influence weight, controversial
results have been reported, and there is no general agreement on this issue.
Therefore, this study assessed the effect of sitagliptin as monotherapy and
add-on therapy to metformin on weight reduction in overweight or obese cases
with type 2 diabetes.

Methods We reviewed the following databases to identify all relevant
papers published until 1st April 2021: Web of Science, MEDLINE, Embase, Scopus,
Cochrane Central Register of Controlled Trials Cochrane Library, and Google
Scholar. The research included all clinical trials investigating the effect of
sitagliptin in obese or overweight adult patients with type 2 diabetes without
any language restriction.

Results In total, eighteen randomized controlled trials with 2009
participants were included in our meta-analysis. Results showed supplementation
of sitagliptin has led to weight loss for sitagliptin treated (MD
 −0.99; 95% CI; (−1.87, −0.12);
p=0.026)) and sitagliptin+metformin treated groups (MD
 −1.09; 95% CI; (−1.69, −0.49);
p<0.001)). Also, the intervention has influenced body mass index in
sitagliptin treated (MD  −0.23; 95% CI; (−0.45,
0.02); p=0.033)) and sitagliptin+metformin treated groups (MD
−0.52; 95% CI; (−0.96, 0.08); p=0.020))
comparing to placebo.

Conclusion Our results demonstrated that sitagliptin administration with
or without metformin might reduce the body weight and body mass index if these
drugs are taken for more than 6 months.
Tendão quadricipital: Opção na reconstrução ligamentar do joelho
Authors: Stieven Filho Edmar , Namba Maisa Sayuri , do Prado Nascimento Isabela , Martins Rosa Fernando , Namba Mario Massatomo
Published: August 2021

Ainda que seja um tendão versátil, apenas 1% dos cirurgiões optam por utilizar o tendão quadricipital como enxerto na reconstrução do ligamento cruzado anterior (LCA). O presente artigo tem o objetivo de descrever uma técnica de retirada do enxerto quadricipital na qual a sua porção mais profunda é mantida. A técnica consiste em uma abordagem na qual a primeira incisão é feita na porção medial do tendão quadricipital para evitar que ele fique muito curto. Isso acontece devido ao seu desenho triangular. A técnica também aborda a profundidade e a identificação das três camadas do tendão quadricipital para que seja possível preservar sua porção mais profunda. Esta conduta tem o objetivo de uma maior preservação do aparelho extensor e de não haver comunicação com o meio articular, evitando extravasamento de líquido tanto no trans- quanto no pós-operatório.
Endolymphatic Sac Tumour: A Case Report and Review of the Literature
Authors: Patankar Amey P. , Aiyer Ranjan , Chamarajan Srinivasan , Vala Nidhi
Published: August 2021

Introduction Endolymphatic sac tumor (ELST) is a slow-growing, low-grade, locally-infiltrative tumor arising from the endolymphatic sac/duct, which is located in the posterior part of the petrous temporal bone. It may be sporadic in origin, or may be associated with Von-Hippel Lindau (VHL) syndrome.

Case description A 40-year-old female patient with an ELST without VHL syndrome who was treated successfully by microsurgical extirpation of the tumor.

Discussion We discuss the radiological features and the histopathology of this rare tumor and review the relevant literature.

Conclusion The case herein reported adds to the previously-reported cases of this rare tumor.
Revisiting the Concept of Non- and Minimally Invasive Interventions in Early Glottic Cancer – Part II: Single Therapy Should be Favored over the Combination of Transoral Laser Microsurgery and Radiotherapy, Regarding the Postinterventional Voice Quality
Authors: Vlastarakos Petros V. , Georgantis Ilias , Nikolopoulos Thomas P. , Delidis Alexandros
Published: August 2021

Introduction Early glottic cancer (EGC) is associated with a high cure rate. Hence, patients and physicians also focus on the impact of the proposed treatment on the speaking function of the preserved larynx.

Objectives The present study assessed the impact of single-modality treatment (transoral laser microsurgery [TLM], or radiotherapy) or combination therapy for EGC on postinterventional voicing and explored factors which might explain the related perceptions.

Methods A total of 108 patients filled in the voice handicap index 10 questionnaire, 1 and 2 years postinterventionally. Non-parametric tests were used for the respective statistical analyses.

Results Sixty-four patients were treated with TLM, 15 with radiotherapy, and 29 with both modalities. Transoral microsurgery and radiotherapy were associated with postinterventional dysphonia, which attenuated between the first and second postintervention year (p = 0.000). No association between sociodemographic parameters and the attenuation of postinterventional dysphonia was identified for either treatment modality. Transoral microsurgery and radiotherapy resulted in comparable postinterventional voicing, in the first (p = 0.940) and second (p = 0.196) postintervention years. The addition of TLM to radiotherapy resulted in worse voice quality in the second, compared with the first postintervention year (p = 0.000), demonstrating a detrimental effect on speech intelligibility in noise (p = 0.000).

Conclusion Single therapy should be favored over the combination of TLM and radiotherapy for EGC in terms of retaining better postinterventional voice quality. Postinterventional dysphonia should be taken into account, during preinterventional counseling, as it may exert leverage on the quality of patients' lives. Patients and physicians should acknowledge the optimal time of voice function return, which seems to be extending up to two years posttreatment.
Giant Perianal Condyloma Successfully Treated with Podophyllin at 25% in Solid Petrolatum
Authors: Svidler López Laura , La Rosa Luciana , Cipollone Sofía , Sidra Gabriela L. , Regina José L. , Pastore Rita L. O. , Orcinoli Teresa , Stier Elizabeth A.
Published: August 2021

Purpose Giant perianal condyloma (GPC) is a rare condition. The effective treatment is a multidisciplinary challenge; topical treatments are usually ineffective, and surgical resection has significant morbidity. Podophyllin at 25% in solid petrolatum (25%PSP) can be an effective treatment option for GPC. The aim of the present study was to assess its response and tolerability.

Methods This retrospective, single-center case series evaluated the clinical response of 14 patients with GPC treated with 25%PSP in a public hospital in Buenos Aires between December 2015 and December 2019. After obtaining a full history and performing a physical exam, the lesions were measured and photographed. Biopsies were performed to exclude malignancy, as well as exams to rule out pregnancy. Podophyllin at 25% in solid petrolatum was administered topically in cases of GPC and washed off by the patients at home after 4 hours. The patients underwent at least 4 weekly visits, which included interval history, photodocumentation of the lesions, and provider-applied 25%PSP. The response rate was assessed by comparing measurements and the overall decrease in volume of the GPC based on photos from the first and last sessions. Adverse outcomes were noted.

Results In total, 10 men, 3 women, and 1 transgender woman with GPC unresponsive to prior treatments and a mean age of 34.5 years were included. A total of 12 patients were immunosuppressed. All the perianal lesions were circumferential and measured between 8 cm and 20 cm. Overall, 7 patients had genital condyloma outside of the anus and perianus; the histology showed low-grade squamous intraepithelial lesions in all cases. While on treatment, 7 patients reported dermatitis, and 71% of the patients had ≥ 75% reduction in lesion size.

Conclusions Podophyllin at 25% in solid petrolatum is an effective, well-tolerated topical treatment option for GPC.
Lean: Introduction of a Quality Improvement Concept into Percutaneous Nephrolithotomy to Improve Efficiency while Maintaining Safety
Authors: Fernandez Nicolas , Hannick Jessica H. , Escobar Rebeca , Serrano Adolfo
Published: August 2021

Introduction and objective Standardization of surgical interventions reduces complications and costs and positively impacts intra and postoperative outcomes. Implementation of the lean concept, initially proposed in the auto industry, now becomes an interesting approach in the surgical setting. We want to present the results of how percutaneous nephrolithotripsy (PCNL) in a high-level center can be positively impacted by implementing the lean concept.

Methods We evaluated a total of 140 PCNL procedures. Group 1 included all cases operated prior to implementing the lean concept and group 2 was composed of those operated after implementing the lean concept. We looked for all seven sources of waste to identify and modify our practice to improve efficiency and safety. We then collected intraoperative times and compared the ones prior to those after the implementation.

Results After implementing the lean concept, with an average of six PCNL cases per day, a comparison was made to an equivalent number of cases prior to the lean implementation (group 1). The average total operative time for PCNL preintervention was 138 (confidence interval [CI]: 79 to 170) minutes and postlean intervention was 71.1 (CI: 43 to 157) minutes. Surgical time (cystoscopy to skin closure) was 36.1 (CI: 25 to 50) minutes prelean and 50 minutes postlean (CI: 23 to 154). For this last one, bilateral procedures were performed. Operative room turnover time was 27.8 (CI: 21 to 38) minutes prelean and 5.67 (CI: 3.5 to 12) minutes postlean. Induction time was 16.5 (CI: 5 to 55) minutes prelean and 5.4 (CI: 3.5 to 7.5) minutes postlean.

Conclusion Implementation of the lean concept enables optimization of the surgical procedure, allowing hospitals to reduce costs and standardization.
Efficiency of communities and financial markets during the 2020 pandemic
Authors: James Nick , Menzies Max
Published: August 2021

This paper investigates the relationship between the spread of the COVID-19 pandemic, the state of community activity, and the financial index performance across 20 countries. First, we analyze which countries behaved similarly in 2020 with respect to one of three multivariate time series: daily COVID-19 cases, Apple mobility data, and national equity index price. Next, we study the trajectories of all three of these attributes in conjunction to determine which exhibited greater similarity. Finally, we investigate whether country financial indices or mobility data responded more quickly to surges in COVID-19 cases. Our results indicate that mobility data and national financial indices exhibited the most similarity in their trajectories, with financial indices responding quicker. This suggests that financial market participants may have interpreted and responded to COVID-19 data more efficiently than governments. Furthermore, results imply that efforts to study community mobility data as a leading indicator for financial market performance during the pandemic were misguided.
An innovative test equipment with rate-dependence in interface damage and its operation under cyclic loading
Authors: Wu Tingyao , Jiang Nan , Zhou Chuanbo , Luo Xuedong , Li Haibo , Chang Xiong
Published: August 2021

An innovative test equipment for analyzing the dynamic damage at the interface of geosynthetic materials is introduced. It provides a result of shear damage on the structural surface of a geosynthetic material that has been subjected to cyclic loading of different amplitudes. First, the experimental data of geosynthetics under cyclic loading are obtained based on the innovative test equipment mentioned above, and a mathematical identification method for the relationship between cyclic loading parameters and shear mechanical behavior of geosynthetics is proposed based on the Mohr–Coulomb criterion, assuming that the micro-element strength of geosynthetics follows Weibull distribution. Moreover, the proposed model, which takes into account repeated loading–unloading conditions, enables this simulated damage process to have properties of reoccurring load cycles, and the proposed method was evaluated by experimental datasets from this study and the existing literature and proved to have a satisfying performance in predicting mechanical behavior of shear stress in geosynthetics under different cyclic loadings. Second, the self-developed test instrument can well solve the direct shear parameters of geosynthetics under dynamic load and can be obtained as a new dynamic statistical model with rate-dependence in interface damage.
Guided Lamb waves in reconfigurable phononic crystal waveguides
Authors: Wang Yan-Feng , Yang Li , Wang Ting-Ting , Chen A-Li , Laude Vincent , Wang Yue-Sheng
Published: August 2021

We demonstrate experimentally the manipulation of Lamb waves guided along reconfigurable phononic circuits created by defects composed of threaded rods held with nuts in a perforated solid phononic crystal slab. Adjusting the free length of the rod, the resonant frequency of the defect can be tuned, without any change in the supporting phononic crystal slab. Both straight and bent waveguides are fabricated and measured in an aluminum sample with a lattice constant of 20 mm and a complete bandgap extending from 50 to 70 kHz. Guidance of Lamb waves is clearly observed by a Doppler vibrometer, even after 90° bends. The eigenmodes of guided waves are obtained using finite element analysis to explain the tuning of resonances through a bending cantilever model. Numerical and experimental results are generally found to be in fair agreement. They also suggest that the guiding frequency is rather independent of the details of the waveguides. They are of significance for the design of reconfigurable phononic devices.