bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of the vulnerability of the population of the northern regions to climate change
Authors:   Yugra State University, Bessonova T.N. , Ismonova F.U.
Published: November 2022

Approaches to determining the vulnerability of the population in connection with climate change are considered. A comparative analysis of the vulnerability of the population of the regions of the European and Ural North was carried out. The following Rosstat indicators were used: the share of the population with cash incomes below the subsistence level, the unemployment rate, the share of people with disabilities in the total population, the presence of air conditioners in households, the share of green space in the total area of urban land within the city limits. With the help of a point rating, regions are identified that are less vulnerable to climate change. Regions with a higher level of socio-economic development, the Yamalo-Nenets Autonomous Okrug and the KhantyMansiysk Autonomous Okrug, turned out to be the least vulnerable to climate change. When developing adaptation documents for regions to global climate change, it is necessary to take into account the most vulnerable groups of the population. This will enable the development of a more targeted and effective adaptation strategy.
Physico-chemical properties and ecological aspect of crystalline iron (III) orthovanadate, iron (III), copper (II) and lead (II) metavanadate
Authors:   Ivanovo State University of Chemistry and Technology, Russia, Ouvaroff A.A. , Butko I.A. ,   Ivanovo State University of Chemistry and Technology, Russia, Litova N.A. ,   Ivanovo State University of Chemistry and Technology, Russia
Published: November 2022

In the work, iron (III) orthovanadate, iron (III), copper (II) and lead (II) metavanadates were obtained, the ratio of the obtained substances to concentrated acids – sulfuric, hydrochloric, nitric and orthophosphoric, alkalis, aqueous solutions of chlorine, bromine and iodine, some chalcogens, aluminum and magnesium oxides was studied. Melting temperatures, densities of crystalline substances, solubility in water have been experimentally determined. IR spectroscopic analysis of compounds by the method of disturbed total internal reflection was carried out for the first time. Based on the data obtained, conclusions are drawn about the structure and chemical properties of substances, as well as the most dangerous compounds obtained by interacting with acids, alkalis and halogens.
The use of environmentally friendly growth regulators in the cultivation of root crops
Authors:   Russian State Agrarian University-MSHA named after K. A. Timiryazev, Galchenko E.I. , Seregina I.I. ,   Russian State Agrarian University-MSHA named after K. A. Timiryazev, Eliseeva O.V. ,   Russian State Agrarian University-MSHA named after K. A. Timiryazev
Published: November 2022

In field studies, the influence of various environmentally friendly plant growth bioregulators was studied when growing carrots (Daucus carota L.) of the Vitamin 6 variety. Various concentrations of growth regulators were studied, which allow obtaining the maximum possible yield of carrot plants under given growing conditions.
Carbon adsorbent as a functional material for solving the environmental problem of greenhouse gases
Authors:   Tambov State Technical University, Russia, Memetova A.E. , Zelenin A.D. , Memetov N.R. , Stolyarov R.A.
Published: November 2022

Carbon materials have been obtained from spent coffee grounds using chemical activation, capable of becoming highly effective adsorbents for the greenhouse gas methane. The influence of the conditions of the synthesis process (the mass ratio of the activating agent to the precursor) on the development of the porous structure of adsorbents was studied using the methods of Romanov spectroscopy, X-ray phase analysis, and Fourier transform infrared spectroscopy. Samples with different pore hierarchies and different specific surface areas were obtained, including microporous adsorbents (SBET: 1131–2251 m2/g; VMIK/VPORE: 100%) and micromesoporous adsorbents (SBET: 2951–3304 m2/g; VMIK/VPORE: 43– 64%; VMEZ/VPORE: 36-57%). The resulting carbon materials have a narrow pore size distribution up to 5 nm. A study was made of the adsorption of the greenhouse gas methane in carbon adsorbents obtained by chemical activation at various ratios of potassium hydroxide to the precursor. It was found that the highest adsorption of methane, equal to 18.6 mmol/g at 100 bar and a temperature of 298 K, is achieved on a sample with high BET specific surface area and DFT specific pore volume (SBET: 3304 m2/g; VPORE: 1,49 cm3/g).
Peroxidase isoform activity in spring wheat grain under the influence of growth regulators
Authors:   Russian State Agrarian University - Moscow Agricultural Academy named after K.A. Timiryazev, Russia, Maya Anka , Ivanovna Seregina Inga
Published: November 2022

In laboratory experiments, the effect of various growth biological preparations on the activity of peroxidase isoforms in dormant seeds and during their germination was studied. In the experiment, at pH = 5.5, 7.0, 8.0, the activity of enzyme isoforms was determined using a phosphate-buffer system (1/15 M). The activity of isoforms of the peroxidase enzyme (by a method based on tyrosine peroxidation) was determined on dormant wheat grains (after ripening after harvesting) and germinated on the 3rd, 5th, and 7th days of germination. According to the research results, different effects of the biological preparations used (protective-stimulating complex, Hardy, Ferovit and Ferovit + Hardy mixtures) on the activity of peroxidase isoforms in spring wheat grain were noted, which depended on the preparative form of their active substance.
Urban green building: a modern view
Authors:   Yuri Gagarin State Technical University of Saratov, Russia, Pushkareva Irina Sergeevna
Published: November 2022

This article proposes for comparison different concepts of approaches to urban planning: the experience of domestic urban planning in the form of a natural frame and a system of green areas is studied, the experience of foreign researchers is studied on the example of green and landscape infrastructure, productive landscapes and landscape urbanism. For comparison, three levels of perception of the territory are singled out: the macro-level (highest level), the meso-level and the micro-level (lowest level). The levels of large and small scale showed the difference in the approaches of domestic and foreign researchers. The experience of foreign researchers is based on the search for local solutions to environmental and urban problems. Domestic experience has a lot of knowledge in the organization of complex structures that link the city and nature around it. Urban green building trends are to find a balance on all three levels.
Analysis of the economic effect of increasing the reliability of information systems of digital agricultural enterprises
Authors:   Vyatka State University, Russia, Buzikov Sh.V. , Buzikova O.M. , Motovilova M.V. , Safiulin A.F.
Published: November 2022

Ensuring the technological safety of the oil and gas industry based on an analysis of factors that can lead to deliberate and unintended risk causes is relevant. In this regard, the purpose of the study is to assess the technosphere hazard using the example of the Kharyaga terminal. The Kharyaga terminal, which was commissioned in July 2003 and is designed to receive oil prepared for the first quality group (GOST R-51858-2002) at the Yuzhno-Shapkinsky, Pashshorsky, Verkhnegrubeshorsky, Yuzhno-Yuryakhinsky fields, was chosen as the subject of the study. Because of the studies carried out, the main causes that can lead to emergencies at the terminal were analyzed, which will lead to serious consequences for human life and health and the environment. Identified causes contributing to the occurrence and development of adverse consequences. The probability of occurrence of emergencies was calculated based on the analysis of the available statistical information, as well as the use of logical schemes for the occurrence of accidents due to the construction of "failure trees" and "event trees." Explosion hazard and energy indicators classified process units (sites). As a result, the conditions for ensuring the most efficient activity of the employee and environmental conservation at the Kharyaga terminal were determined.
Interactive methods in the study of graphic disciplines
Authors:   Reshetnev Siberian State University of Science and Technology, Russia, Dmitrenko G.A. , Emelina T.N. , Kupriyanov T.D.
Published: November 2022

Interactive teaching methods in the study of graphic disciplines open up new opportunities for the teacher in teaching his subject. The use of interactive teaching methods in the study of descriptive geometry and engineering graphics facilitates the memorization process, allows you to make the lesson more effective, interesting and dynamic, thereby increasing the level of motivation for learning and maintaining a high degree of efficiency of students.
Improving UAVs control systems reliability for environmental monitoring by applying a common diversity metric to modify the agreed by the majority vote algorithm
Authors:   Siberian Federal University, Russia, Gruzenkin D.V.
Published: November 2022

The article considers the problem of control systems for unmanned aerial vehicles reliability increasing, which are used for environmental monitoring and agricultural needs. Software systems reliability improving can be achieved through the use of N-version software, which often uses an algorithm for voting by an agreed majority. However, this algorithm can select the presumably correct answer of a entire module randomly. This happens when several groups of versions of the same amount give different answers. To solve this problem, the article proposes to modify the voting algorithm by an agreed majority by applying a common diversity metric. The paper describes the common diversity metric, as well as a couple of particular metrics included in it (the programming languages diversity metric and the algorithm diversity metric). The method of modifying the voting algorithm by an agreed majority is also given. In the article conclusion the results were summed up, and a conclusion was made about the expediency of using a common diversity metric to modify the vote algorithm by an agreed majority in order to increase the reliability of unmanned aerial vehicles for environmental monitoring and agricultural purposes.
Reproductive toxicity of peat smoke on white rats
Authors:   East-Siberian Institute of Medical and Ecological Research, Tropnikova A.A. , Andreeva E.S. , Buynova E.V.
Published: November 2022

A study of postnatal development of offspring of white rats exposed by peat smoke to during puberty was made. Experimental modeling of a peat fire was carried out once for 4 hours on 45th day of animals life. The concentrations of carbon monoxide and particulate matter PM2.5 in exposure chambers were 29.3±3.5 mg/m3 and 0.395±1.2 mg/m3, respectively. At the age of 3 months, smoke-exposed male and female white rats were mated with intact partners. The neonatal and breastfeeding period, body weight gain, indicators of physical development, and the rate of maturation of sensory-motor reflexes of rat pups from the resulting offspring were determined. It was shown that a single exposure of peat smoke leads to an increase in body weight, a pronounced violation of physical development and maturation of sensory-motor reflexes. The most pronounced disorders were recorded in offspring obtained from females exposed to smoke. These animals demonstrated a lag in physical development, as evidenced by the later appearance of the primary hairline, as well as a significant increase in body weight and a decrease in the rate of maturation of sensorimotor reflexes "negative geotaxis" and "avoidance of cliff".
Efficiency of carbon landfill for reducing environmental pollution and global climate instability
Authors:   Saint-Petersburg State University, Russian Federation, Utkin A.I.
Published: November 2022

The evaluation of the impact of highly concentrated innovative carbon landfills reconstruction for the global climate balance improvement and environmental management on the organization of projects to reduce emissions of pollutants was carried out. The article elaborates conceptual tools for reducing environmental pollution to overcome the shortcomings of standard gas emission systems at landfills, improve global anthropogenic conditions and increase the global climate stability using integrated balanced scorecard cluster technology. Using the indicative mechanisms of SR-technology of environmental cleaning projects, the criteria for evaluating the efficiency of carbon landfills were corrected and quantitative deviations of the risk level of increasing the concentration of pollutants depending on climatic seasons were revealed. Using the author’s simulation method of criteria-based analysis, cross-cutting directions for improving the environmental conditions were proposed, reflecting optimal conditions for the polystructurality of carbon innovations elements and promising modified wind gusts reflecting the specifics of climatic conditions. As a result of the research, the methodology for a comprehensive evaluation of the feasibility and efficiency of stimulating carbon landfill models were proposed through the balanced scorecard focused on overcoming the resulting difference in pollutant emissions.
Environmental safety of primary livestock processing when using robotics
Authors:   Saratov State University of Genetics, Biotechnology and Engineering named after N.I. Vavilov, Russia, Giro T.M. , Konovalenko L.Yu. , Mishurov N.P. ,   FSBI "Rosinformagrotech", Russia
Published: November 2022

The article deals with issues related to environmental safety, resource conservation, reduction of product losses during slaughter and primary processing of livestock using robotics. The latest developments in this field dedicated to the primary processing of pigs are shown, the experience of robots in enterprises is described. The method of anesthesia of pigs in an installation with a gas-air mixture containing 60-80% carbon dioxide is described, it is carried out within 10-40 seconds and ensures the transition of the animal into unconsciousness, lasting up to 2 minutes. Next, the pork carcass gets into a special tunnel, where it is scalded for 7 minutes at a temperature of +61-63 ° C. Carcasses are singed for 3 seconds at a temperature of 900-1100 ° C, to burn the remnants of bristles and epidermis. After that, the carcass passes through a scourge washing and polishing machine, where its surface is cleaned of the remnants of burnt bristles and epidermis, and then through a second opalescent furnace to reduce the number of microorganisms. Before entering the robotic positions, carcasses pass through a three-dimensional laser scanner that directs a three-dimensional model of their surface to the robot controller. Special software of the software logic controller calculates optimal trajectories of cutting based on the obtained model. The robot's optical system compares the carcass with the resulting threedimensional model and performs proper cutting operations. In addition to high productivity, robots ensure high environmental friendliness of production.
Optimization of recognition of micro-objects based on the use of morphometric characteristics of images
Authors:   Samarkand state university, Uzbekistan, Jumanov I.I. , Safarov R.A. ,   Samarkand state university, Uzbekistan
Published: November 2022

Constructive approaches, principles and methods of identification, recognition and classification of micro-objects based on the use of neural networks and mechanisms for extracting morphometric characteristics of images have been developed. Information processing technology based on obtaining images of micro-objects from a photo, video camera, digital microscope is proposed. A technique has been developed for interactive measurement of the size of micro-objects, counting, determining the structure, conducting statistical analysis, isolating and segmenting fragments, selecting informative points, recognizing and classifying images. A computational scheme for preliminary processing of images is built, including mechanisms for texture, contour segmentation, detection, and regulation of variables. Algorithms for learning neural networks with setting variables within the limits of permissible values, taking into account the properties of nonstationarity of image points, have been built. The effectiveness of learning algorithms combined with neural network dynamic models with mechanisms for regulating linear, nonlinear, compositional connections of neurons between network layers has been investigated. The study was carried out according to the criterion of the percentage of correct recognition. A software package for visualization, recognition, classification of images of pollen grains has been developed and implemented, which has been tested under conditions of a priori insufficiency, uncertainty and nonstationarity.
PERFIL EPIDEMIOLÓGICO DA TUBERCULOSE NO MUNICÍPIO DE PATOS - PARAÍBA
Authors: De Oliveira Prata Pessoa Camila , Bernardino Pontes Charles , De Oliveira Prata Clarissa , Santos de Araújo Gustavo , Kelly de Almeida Queiroz Falcão Kaliane , Machado Alves Layssa , Soares Mota Matheus , Vagner de Lucena Santos Everson
Published: November 2022

A Tuberculose é considerada um grave problema de saúde pública, uma vez que o óbito por esta doença é considerado evitável e sua ocorrência pode indicar falhas na assistência ao paciente. Dessa forma, o presente estudo objetivou analisar o perfil epidemiológico da tuberculose, no município de Patos-Paraíba. Foi realizado um estudo retrospectivo de caráter epidemiológico com abordagem descritiva e quantitativa dos casos confirmados de tuberculose no período compreendido entre 2001 e 2020, sendo os dados obtidos por meio do SINAN (Sistema de Informação de Agravos de Notificação) disponível para consulta no banco de dados DATASUS (Departamento de informática do Sistema Único de Saúde). Identificou-se 776 casos de tuberculose nos últimos 20 anos, sendo apontada uma redução da incidência em 5,27%, atingindo principalmente indivíduos do sexo masculino (68,17%) na faixa etária de 20 a 59 anos. Observou-se que houve um aumento importante na realização do teste anti-HIV (64,94%), porém um número significativo de casos não realizou o exame. Percebeu-se, também, um avanço em relação a adoção do TDO, no entanto, em 54,64% dos casos essa informação foi ignorada. Apesar de 67,65% dos casos apresentarem situação de encerramento por cura, este indicador permanece aquém do pactuado. A Tuberculose ainda se configura como uma emergência global e se faz necessário um planejamento racional para a adoção de estratégias efetivas para controle e prevenção da doença.
Contribución al desarrollo de sensores de gases basados en resonancias ópticas
Authors:   , Vitoria Pascual Ignacio
Published: November 2022

Sensors based in optical resonances have increased their popularity in the last years. The ones used in gas measurement applications are especially relevant, due to their high sensitivity and robustness to harsh environments. This thesis has contributed to the improvement of gas sensors based in optical resonances employing two approaches: the search for gas-sensitive materials and the development of new interrogation techniques. The researched materials are composed by a polymeric matrix and nanostructured materials: tungsten oxide nanoparticles, nanodiamonds and graphene oxide nanosheets. The properties of these materials are studied with different gas concentrations and surrounding refractive indexes (SRI). Two research lines are developed to obtain ultrasensitive sensors to SRI. The first one studies the LMR effect and its sensitivity in the mid infrared (MIR) region, employing fluoride glass optical fibers and TiO2 as material. The second one focuses on the resonances coined for the first time as surface exciton polariton resonances (SEPR) that are based on the long range surface exciton polariton (LRSEP) effect. A sensor in a Krestchmann-Raether configuration is developed with two films of Cr and MgF2. The roles of the different parameters of the sensor are studied theoretically as well as the experimental sensitivity to the incident angle and SRI.
In Silico Molecular Interaction Analysis and Pharmacokinetic Profiling of Flavonoids from Catharanthus roseus (Flower) Against TXNIP Protein
Authors: Pushpa Ramya Ranjan Nayak Santosh , Babulal Kiran Sharma , Kumaran Rajendran , Shoba Gunasekaran , Balakumaran Manickam Dakshinamoorthi
Published: November 2022

Catharanthus roseus is a flowering plant whose flowers have been used in traditional medicine to treat diabetes mellitus. Some of the flavonoids present in these flowers, namely, quercetin, petunidin, malvidin, kaempferol, and hirsutidin were utilized for studying molecular interaction analysis. Diabetes mellitus which is a metabolic disorder caused by the depletion in the secretion of insulin, which regulates the blood glucose levels by facilitating the metabolism of glucose. Reduction in insulin secretion is often caused by the loss of beta cells of the pancreas. Thioredoxin-interacting protein (TXNIP) is an alpha arrestin which inhibits the production of thioredoxin. It can regulate the beta cells and its inhibition can be advantageous. Reduction in insulin secretion is often caused by the loss of beta cells of the pancreas. Studies have shown that elevated levels of TXNIP can induce apoptosis in beta cells while deficiency of TXNIP leads to protection against Type I & II diabetes due to beta cell survival. To study molecular interactions, flavonoids from the flower of C. roseus and control drug glibenclamide were subjected to docking against 3D structure of TXNIP protein using Autodock 4.2 and their molecular interactions were visualized using a Biovia discovery studio visualizer. Docking interactions and ADMET studies of the bioactive compounds signified the application of C. roseus as a natural therapeutic agent to combat diabetes.

HIGHLIGHTS

Studies have shown elevated levels of TXNIP can induce apoptosis in beta cells while deficiency of TXNIP leads to protection against diabetes type I & II due to beta cell survival

Molecular interaction analysis of flavonoids namely, quercetin, petunidin, malvidin, kaempferol, and hirsutidin from Catharanthus roseus (Flower) against TXNIP Protein were utilized for studying using Autodock 4.2 software

ADMET study of the selected bioactive compounds were carried out

Docking interactions and ADMET studies of the bioactive compounds signified the application of roseus as a natural therapeutic agent to combat diabetes

GRAPHICAL ABSTRACT
Multidisciplinary approach for ureteral stent intravascular migration: a case report
Authors: Bernal-Gómez Adrián , Gómez-Palomo Francisco , López-Acón José Daniel , Bonillo-García Miguel Ángel
Published: November 2022

Clinical case description: We report the case of a patient who underwent a double-pigtail ureteral stent (DPS) retrograde placement, following a complicated right renal colic. After two days with persisting pain and hematuria, a CT-Scan revealed a proximal pigtail misplacement into the inferior vena cava (IVC). In a multidisciplinary approach, an endourological removal was performed, pulling the distal loop with a cystoscope, while the vascular surgery team performed femoral access and phlebography during and after the DPS removal to prevent bleeding from IVC. Abdominal access for laparotomy was ready, anticipating potential bleeding.
Relevance: DPS retrograde placement is a very frequent, usually uneventful procedure, but major complications may occur, such as the one described in the present case. It is important to know the risk of intravascular misplacement of the DPS, especially in cases of bad evolution or hematuria.
Conclusion: DPS intravascular migration is a rare but potentially severe complication. An early detection and a multidisciplinary collaboration between the urology and vascular surgery teams is paramount to perform a minimally invasive removal and prevent major events.
Afectación metastásica de la orbitaria por carcinoma de vejiga simulando una celulitis periorbitaria: reporte de caso
Authors: Bobadilla-Romero Emny Rochell , Artés-Artés Miriam , García-Porcel Víctor Javier , Alcón-Cerro Pablo , Guzmán-Martínez-Valls Pablo Luís , Jiménez-Parra José David
Published: November 2022

Descripción del caso clínico: Varón de 67 años con antecedente de cistectomía radical por tumor vesical músculo invasivo, presenta un cuadro agudo de edema y eritema periorbitario izquierdo acompañado de dolor y disminución de la motilidad ocular, inicialmente se sospechó una celulitis periorbitaria por lo que se inició tratamiento empírico con antibiótico. Al no presentar mejoría clínica tras completar correctamente el tratamiento se decide biopsiar la lesión, siendo los resultados de la biopsia compatibles con metástasis de carcinoma vesical.
Relevancia: El carcinoma de vejiga representa unos de los tumores urológicos más frecuente, afectando con mayor frecuencia al sexo masculino; los sitos más frecuentes de metástasis son los ganglios linfáticos, pulmones y huesos, sin embargo, la afectación metastásica de la órbita es rara.
Implicaciones clínicas: A pesar de que la afectación metastásica de la órbita por tumores uroteliales es muy infrecuente, es importante conocer las características de la lesión para poder realizar un diagnóstico oportuno y de esta manera brindar un tratamiento adecuado.
Conclusión: En pacientes con antecedentes de cáncer vesical que presenten celulitis periorbitaria sin mejoría clínica a pesar de un tratamiento antibiótico adecuado, se debe sospechar la afectación orbitaria por metástasis del tumor vesical.
Potencialidades de um saber afrodiaspórico: reflexões a partir do reggae
Authors: Hinkel Jaison , Maheirie Kátia
Published: November 2022

Este texto apresenta um ensaio teórico que tem por objetivo problematizar o reggae como um saber afrodiaspórico que pode contribuir para uma descolonização do pensamento. Para desenvolver nossas reflexões, analisamos elementos históricos do processo de constituição e desenvolvimento do reggae. Concluímos que o reggae propõe respostas à colonialidade que visam o reconhecimento e a credibilização de saberes comunitários enraizados na ancestralidade africana. Uma das principais potencialidades decoloniais do reggae está na sua configuração como um saber do cotidiano que conserva a rua como referência não apenas de expressão artística, mas de entretenimento, sociabilidade, pertencimento étnico e ação política. O reggae, neste sentido, apresenta uma ação duplamente decolonial, pois configura a produção de um saber vinculado ao cotidiano que é produzido por corpos que foram subalternizados pelo projeto colonial.
What business students really need: Pragmatic strategies used by young business professionals in a multilingual environment
Authors: Sándor Eszter
Published: November 2022

When fresh business graduates enter the world of business, they often work in a multicultural and multilingual environment where the shared language is English, that is, they use Business English as a lingua franca (BELF). In such work environments they are expected to function as professionals in English as well as in their mother tongue. However, being able to collaborate with other non-native speakers (NNS) of English and to work effectively with them requires the use of pragmatic strategies that help achieve mutual understanding. The aim of the present paper is to report on the findings of a qualitative piece of research which pursued the goal of exploring how young business professionals communicate in English at work, the pragmatic strategies they employ and the challenges they face when they communicate with people from all over the world. The findings of the interview study confirm research findings reported in literature that language users in BELF contexts use several pragmatic strategies to overcome linguacultural differences, such as paraphrasing, repetition and striving to use clear and simple language. The research has also shown that learning to communicate in an appropriate way is a gradual process that novice members of the international business community go through, and that the more experienced members are more aware of the need to develop their pragmatic competence. The paper aims to contribute to a better understanding of what Business English (BE) courses need to focus on to help future business professionals cope with BELF communicative situations at work.
“Corkonians in a Multicultural Ireland”: An Interview with Lisa McInerney
Authors: Kodó Krisztina
Published: November 2022

The theme of the interview is “Global English(es)”, which presupposes that English is no longer the exclusive terrain of the English people, as it has transcended its original role and has come to be used in several well-defined variants in all walks of life, including education, science, arts, and business. The international conference that took place on 28 and 29 March 2022 at Kodolányi University, Hungary explored this functional and thematic diversity in search of answers to the question of the role and function of English today. My approach within the interview with prominent author, Lisa McInerney, focused on Irish identity, Irishness in a multicultural society, and Ireland and Irishness globally. Thus, the identity of the “Corkonians” globally. Lisa McInerney discussed forms of heritage and its multicultural impact on modern Irish society; forms of identity in relation to the young generation of Irish being born into mixed marriages; and the notion of the “exile theme” and its relevance in contemporary Irish society, as presented through various characters within her novels.
Time series modeling of rainfall and lake elevation in relation to breaching events at the Lake Earl and Tolowa lagoon system, coastal northern California
Authors: Sullivan Robert M.
Published: November 2022

I evaluated trends in spatial and temporal variability in historical levels of rainfall, water elevation, and breach events for lakes Earl, Tolowa, and their combined lagoon system along the coast of northern California. I examined the efficacy of time series analyses to model and forecast rainfall and lake elevation at a regional scale from 2008 to 2021. I employed semi-parametric Generalized Additive Model regression to investigate the historical relationship between anthropogenic breaching of the lagoon and simultaneous occurrences of environmental parameters to better understand conditions surrounding each breach event. Evaluation of the central tendency of rainfall and surface lake elevation showed high fluctuations in their mean, positive skewed, and leptokurtic curves. Augmented Dickey-Fuller tests found that seasonal rainfall was stationary, but surface lake elevation attained stationarity only after the first seasonal difference. Decomposition of each time series and MannKendall and Sen’s slope estimators, found a significant decreasing trend in seasonal surface lake elevation but no trend was found in rainfall. Seasonal Autoregressive Integrated Moving Average (SARIMA) time series analysis and diagnostic tests of stability and reliability found best fit models for rainfall (SARIMA[1,0,0] [2,1,1]12) and surface lake elevation (SARIMA [1,1,2] [1,0,0]12) used to forecast future values for each parameter. Multiple regression of variables obtained at each breach event showed that the proportion of variance (55.0%) and null deviance (72.1%) explained by the combination of rainfall, hightide, and wave height was the “best” model with the lowest Generalized Cross-Validation statistic of all other models evaluated. All models agreed that rainfall was the most significant factor within each set of predictor attributes used to model surface lake elevation. A declining trend in surface elevation in combination with variation in the historical area and extent of wetland plant communities may be attributable to systematic breaching of the lagoon annually.
Popisi prebivalstva 1857 – 1931
Authors: Blaj Hribar Neja
Published: November 2022

Avtorica se v članku osredotoča na historične popise prebivalstva Habsburške monarhije in Kraljevine SHS/Jugoslavije. V njem najprej predstavi zakonodajo in način popisovanja, nato pa analizira posamezne popise in podatke, ki jih vsebujejo. Zadnji del je namenjen kritičnemu pretresu zbiranja in analiz podatkov popisov ter kaj omogočajo nove digitalne metode obdelave podatkov in pomen metodologije.
The evolution of deep convective systems and their associated cirrus outflows
Authors: Horner George Alfred , Gryspeerdt Edward
Published: November 2022

Abstract. Tropical deep convective clouds, particularly their large cirrus outflows, play an important role in modulating the energy balance of the Earth’s atmosphere. Whilst the cores of these deep convective clouds have a significant shortwave (SW) cooling effect, they dissipate quickly. Conversely, the thin cirrus that flow from these cores can persist for days after the core has dissipated, reaching hundreds of kilometers in extent. These thin cirrus have a potential for large warming in the tropics. Understanding the evolution of these clouds and how they change in response to anthropogenic emissions is therefore important to understand past and future climate change. This work uses a novel approach to investigate the evolution of tropical convective clouds by introducing the concept of ‘Time Since Convection’ (TSC). This is used to build a composite picture of the lifecycle of deep convection, from anvil cirrus to thin detrained cirrus. Cloud properties are a strong function of time since convection, showing decreases in the optical thickness, cloud top height, and cloud fraction over time. After an initial dissipation of the convective core, changes in thin cirrus cloud amount were seen beyond 200 hours from convection. Finally, in the initial stages of convection there was a large net negative cloud radiative effect (CRE). However, once the convective core had dissipated after 6–12 hours, the sign of the CRE flipped, and there was a sustained net warming CRE beyond 120 hours from the convective event. Changes are present in the cloud properties long after the main convective activities have dissipated, signalling the need to continue further analysis at longer time scales than previously studied.
Kajian Penerapan Faktor yang Mempengaruhi Akurasi Penentuan Kadar Air Metode Thermogravimetri
Authors: Daud Ahmad , Suriati Suriati , Nuzulyanti Nuzulyanti
Published: November 2022

Kadar air adalah salah satu metode uji laboratorium kimia yang sangat penting dalam industri pangan untuk menentukan kualitas dan ketahanan pangan terhadap kerusakan yangmungkin terjadi . Pengukuran kadar air dalam bahan pangan dapat ditentukan dengan beberapa metode, yaitu: dengan metode pengeringan ( thermogravimeri ), metode destilasi ( thermovolumetri ), metode fisis dan metode kimiawi ( Karl Fischer Method ). Pada umumnya penentuan kadar air bahan pangan dilakukan dengan mengeringkan bahan dalam oven suhu 105-1100C selama 5 jam atau sampai diperoleh berat konstan. Metode ini dikenal dengan metode pengeringan atau metode thermogravimetri yang mengacu pada SNI 01-2354.2-2006. Pada metode penentuan kadar air secara Thermogravimetri ini terdapat beberapa faktor yang mempengaruhi akurasi  penentuan kadar air bahan, yaitu: Suhu dan kelembaban  ( RH ) ruang kerja / laboratorium, Suhu dan tekanan udara pada ruang oven, Ukuran dan struktur partikel sampel, Ukuran wadah / botol timbang ( ratio diameter : tinggi ).  Berdasarkan hal tersebut di atas, maka perlu dilakukan penelitian untuk mengkaji faktor suhu dalam  ruang oven, ukuran partikel sampel, serta bentuk wadah / botol timbang yang digunakan yang dapat mempengaruhi akurasi penentuan kadar air metode thermogravimetri. Rancangan percobaan yang digunakan pada penelitian iniadalah rancangan acak lengkap faktorial dengan beberapa faktor perlakuan : A = Suhu udara pada ruang oven (A1 =  100oC, A2 =  105oC, A3 =  110oC). B = Ukuran wadah / botol timbang (B1 = Cawan Porselin Diameter 5 cm : Tinggi 4,5 cm, Volume 50 ml, B2 = Cawan Porselin Diameter 4 cm : Tinggi 4 cm, Volume 30 ml,  B3 = Cawan Porselin Diameter 4 cm : Tinggi 3,5 cm, Volume 25 ml. C = Ukuran partikel sampel (C1 =  50 mesh, C2 = 100 mesh,C3 = 120 mesh). Hasil Analisis menunjukkan perlakuan suhu dalam ruang oven, ukuran partikel sampel,ukuran wadah atau botol timbang berpengaruh nyata terhadap kadar air tepung ikan (p ˂ 0,05).
Pengaruh Lama Pemaparan Thalus Rumput Laut Gracillaria SP terhadap Pelepasan Spora
Authors: Hartinah Hartinah , Wahidah Sri , Lideman Lideman , Syahrani Dewi
Published: November 2022

Pembibitan rumput laut secara spora merupakan teknik pembibitan dengan memanfaatkan sifat siklus hidup rumput laut Gracillariasp sesuai  perkembangbiakannya secara generative yaitu spora, dapat dilakukan tanpa tergantung kondisi alam sehingga ketersediaan bibit dapat berkesinambungan.  Penelitian ini bertujuan untuk mengetahui pengaruh  lama waktu pemaparan terhadap jumlah dan derajat pelekatan karpspora rumput laut Gracillariasp secara terkontrol. Penelitian dilakukan dengan metode eksprimen dan  didisain dengan menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari empat perlakuanm ( lama waktu  pemaparan 0, 5, 15, dan 30 menit),  masing-masing perlakuan diulang 3 kali.  Hasil peneltian menunjukkan bahwa  lama waktu pemaparan terbaik adalah  15 menit karena  memberikan pengaruh lebih baik   (anova pada α =0,05) dibanding perlakuan lainnya.  Perlakuan lama waktu pemaparan  15 menit  menghasilkan jumlah karpospora945 lebih tinggi dari perlakuan lainnya  secara berturut-turut lama waktu pemaparan 0 menit menghasilkan 893 karpospora, 15 menit  (928spora) dan 30 menit (610 karpospora).   Perlakuan  pemaparan thallus juga dapat mempercepat pelepasan spora,  tertinggi jumlah karpospora sampai   hari kedua pada setiap perlakuan dibandingkan perlakuan 0 menit (control).  selanjutnya menurun sampai hari keempat
Pemberian Dosis yang Berbeda Melalui Rotifer dan Artemia Diperkaya dengan Probiotik Bacillus Sp Terhadap Tingkat Ketahanan Stres Larva Kepiting Bakau (Scylla olivacea) dan Populasi Bakteri
Authors: Nursyahran Nursyahran , Hasri Hasri , U Dina
Published: November 2022

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian probiotik Bacillus sp melalui Rotifer dan Artemia dengan dosis yang berbeda terhadap tingkat ketahanan stres zoea kepiting bakau (S. olivacea). Penelitan ini dilaksanakan di Balai Budidaya Air Payau (BBAP), Desa Bontoloe, Kecamatan Galesong Selatan, Kaupaten Takalar, Sulawesi Selatan dari bulan Maret sampai Juni 2012. Hewan uji yang digunakan pada penelitian ini adalah larva kepiting bakau stadia zoea. Larva tersebut diperoleh dari hasil penetasan di Balai Budidaya Air Payau Takalar. Rancangan Percobaan yang digunakan adalah rancangan acak lengkap (RAL) yang terdiri dari 4 perlakuan 3 ulangan. Data dianalisis dengan menggunakan analisis ragam dan uji tukey digunakan untuk mengetahui perbedaan antar perlakuan. Hasil penelitian menunjukkan bahwa ketahanan larva kepiting bakau terhadap stres tertinggi dicapai pada perlakuan dengan dosis 0.1 g/L (perlakuan C) dan terendah pada perlakuan dengan dosis 0.0 g/L (perlakuan A).  Hasil analisis ragam menunjukkan bahwa perbedaan dosis probiotik Bacillus sp melalui rotifer dan artemia berpengaruh sangat nyata (P<0.01) terhadap tingkat stres larva kepiting bakau stadia zoea sampai megalopaSementara kualitas air Suhu media untuk semua perlakuan berkisar 26.7-29.4 oC, oksigen terlarut 5,37 – 6,37 ppm, pH 7.5-8.0 dan amonia 0.003-0.009 ppm
Proses Produksi Gurita Legs Beku Sesuai Standar Mutu Ekspor
Authors: Fahimah Fahimah , Rusli Arham , Syamsuar Syamsuar
Published: November 2022

Gurita merupakan komoditi perikanan yang mudah sekali mengalami kemunduran mutu. Oleh karena itu, penanganan yang baik disertai dengan penerapan rantai dingin dan pengawasan kebersihan yang ketat sangat diperlukan agar dapat mengurangi terjadinya proses pembusukan. Salah satu usaha memperpanjang atau mempertahankan kesegaran gurita adalah dengan cara pembekuan. Pembekuan dilakukan dengan tujuan mengawetkan bahan pangan dengan cara membekukan bahan pada suhu di bawah titik beku. Penelitian ini bertujuan untuk menguraikan proses pembekuan gurita bentuk Legs untuk tujuan ekspor. Metode yang digunakan dalam pengumpulan data pada penelitian ini adalah observasi langsung, wawancara, dan literatur. Hasil penelitian ini menunjukkan bahwa proses pembekuan gurita legs dilakukan melalui beberapa tahap yaitu;  penerimaan bahan baku, penyortiran dan penimbangan I, pencucian I, pembersihan, pengadukan (tumbling), pencucian II, pemotongan dan penimbangan II, pembungkusan dan penghampaan udara (vakum), pembekuan (freezing), pendeteksian logam, penimbangan akhir, pengepakan dan pelabelan, penyimpanan beku, dan pemuatan ke kontainer untuk proses pengiriman ke negara tujuan ekspor. Persyaratan utama bahan baku yang diolah di PT. Biru Laut Nusantara, Makassar adalah harus dalam kondisi segar untuk menjamin produk akhir yang dihasilkan sesuai dengan standar yang telah ditetapkan. Mulai dari proses penerimaan bahan baku hingga proses pengemasan produk gurita leg beku suhu produk harus dipertahankan melalui penerapan rantai dingin dengan cara pemberian es kristal pada wadah produk. Proses pembekuan gurita legs, dilakukan menggunakan mesin ABF dengan suhu dipertahankan sekitar -35 sampai -45°C. Produk gurita leg beku yang sudah dikemas dalam master cartoon disimpan pada cold storage dengan suhu yang digunakan adalah kurang dari -25°C.
Pengaruh Oocyte Developer terhadap Fekunditas dan Daya Tetas Telur pada Pemijahan Ikan Nila (Oreochromis niloticus)
Authors: Cahyono Indra
Published: November 2022

Penelitian ini bertujuan untuk mengetahui pengaruh Oocyte Developer terhadap fekunditas dan daya tetas telur ikan nila (Oreochromis niloticus) untuk meningkatkan produktivitas usaha pembenihan ikan nila. Penelitian ini merupakan jenis penelitian kuantitatif, menggunakan metode eksperimen yang terdiri dari 4 perlakuan yaitu A (kontrol tanpa menggunakan hormon), B (pemberian Oocyte Developer 0,1 cc/kg betina), C (Oodev 0,3 cc/kg), dan D (Oodev 0,5 cc/kg betina). Analisis data menggunakan analisis varians (ANOVA). Parameter uji dalam penelitian ini meliputi fekunditas dan daya tetas. Hasil penelitian menunjukkan rerata fekunditas terbaik diberikan pada indukan 0,5 cc/kg dengan total fekunditas 823 ± 125 butir telur dengan daya tetas terbaik juga pada dosis 0,5 cc/kg nila betina dengan hasil rata-rata 49 ± 5 bumbu. Penggunaan Oocyte Developer berpengaruh nyata terhadap fekunditas dan daya tetas ikan nila (Oreochromis niloticus).
Perbandingan Alat Tangkap dengan Menggunakan Bahan Jaring Insang Polyetlene dan Polyamide terhadap hasil tangkapan Rajungan di Perairan Pulau Saugi
Authors: Ridwan Akbar
Published: November 2022

Penelitian ini bertujuan untuk membandingkan komposisi hasil tangkapan pada bahan jaring yang berbeda untuk menangkap rajungan di Perairan Pulau Saugi, membandingkan struktur ukuran rajungan yang tertangkap pada bahan jaring yang berbeda dan membandingkan penggunaan bahan jaring yang berbeda terhadap hasil tangkapan rajungan di Perairan Pulau Saugi. Penelitian ini dilaksanakan pada bulan April sampai Mei 2019. Penelitian menerapkan experimental fishing, yaitu uji coba penangkapan rajungan dengan  menggunakan  dua  macam  jaring insang  yang  memiliki  konstruksi  berbeda,  yaitu jaring insang polyetlen dan polyamid.  Variabel penelitian yaitu komposisi hasil tangkapan.  Hasil penelitian menunjukkan bahwa Hasil tangkapan bahan jaring Polyamide sebanyak 36 ekor rajungan dan hasil tangkapan sampingan 1 ekor teripang. Secara keseluruhan, hasil tangkapan pada bahan Polyamide yaitu ada 2 jenis (kepiting rajungan dan teripang).  Hasil tangkapan kepiting rajungan pada bahan jaring Polyamide yaitu kepiting ranjungan betina sebanyak 22 ekor dengan persentase 61% sedangkan kepiting rajungan jantan yaitu sebanyak 14 ekor dengan persentase 39%,  hasil uji, diperoleh nilai t hitung untuk jumlah hasil tangkapan sebesar 0,071 pada taraf signifikansi (á) sebesar 5 %. Dari tabel distribusi t didapat t 0.025, 1 = 12,70. Hal ini menunjukkan bahwa t hitung < t tabel (0,071 < 12,70), yang berarti tdak ada pengaruh perlakuan terhadap jumlah hasil tangkapan. Nilai t hitung untuk berat hasil tangkapan yaitu 23 pada taraf signifikansi (á) 5 %. Nilai tersebut menunjukkan keputusan yang diambil adalah diterima Ho (t hitung < tá/2, n - 1), yang berarti tidak pengaruh perlakuan bahan jaring polyamide dan polyetlene terhadap berat hasil tangkapan
Kandungan gizi dan logam berat daging ikan Sapu-sapu (Pterygoplichthys pardalis) di Danau Tempe Kabupaten Wajo
Authors: Milandhani Supriatna Fitrania Nabilia , Makkulawu Andi Ridwan , Malle Sriwati
Published: November 2022

Ikan Sapu-sapu(Pterygoplichthys pardalis) juga dikenal dengan sebutan janitor fish atau ikan pembersih karena memakan alga yang berada di dasar perairan. Ikan ini mudah beradaptasi dengan perairan yang tercemar. Oleh karena kebiasaan makan dan kemampuan adaptasi yang tinggi pada perairan tercemar maka pemanfaatan ikan Sapu-sapu yang hidup di perairan Danau Tempe sebagai bahan pangan sangat terbatas. Penelitian ini bertujuan untuk menganalisis kandungan gizi dan logam berat pada daging ikan Sapu-sapu yang berasal dari Danau Tempe. Pengambilan sampel ikan Sapu-sapu dilakukan dengan menggunakan metode purposive sampling yaitu, pengambilan sampel secara sengaja sesuai dengan persyaratan sampel yang diperlukan. Ikan yang berhasil dijaring kemudian dipastikan mati dan daging ikan diambil dari badan ikan, dipisahkan dari tulangnya. Setelah itu, daging ikan dimasukkan ke dalam wadah, diberi label kemudian dimasukkan ke dalam cool box yang berisi es batu agar sampel tetap segar dan awet. Sampel dibawa ke laboratorium pengujian untuk dilakukan persiapan analisis kandungan gizi dan analisis logam berat. Parameter kandungan gizi yang diamati meliputi kadar air, protein dan lemak, sedangkan logam berat yang dianalisis adalah timbal dan tembaga. Hasil pengujian kandungan gizi dan logam berat ikan sapu-sapu dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa berdasarkan kandungan proteinnya maka ikan Sapu-sapu dapat dijadikan sebagai bahan pangan, bahan utama dalam pembuatan pakan maupun bahan campuran dalam pakan komersial. Daging ikan Sapu-sapu  yang berasal dari Danau Tempe Kabupaten Wajo layak dikonsumsi karena tidak mengandung logam tembaga (Cu) dan logam timbal (Pb) tidak melebihi kadar maksimum yang telah ditentukan.
Kinerja Keuangan, Economic Value Added dan Return Saham Dampak Covid-19
Authors: Aziza Nurna , Monalisa Riska
Published: November 2022

This study aims to see financial performance through financial statements proxied by financial ratios and Economic Value Added to stock returns due to the impact of Covid-19. This research is expected to prevent investors from making mistakes in investing. The population of this study is non-financial companies listed on the Indonesia Stock Exchange for the 2017-2020 periodThe data collection method used purposive sampling technique, as many as 54 samples with 216 observations that met the research sample criteria. The data were analyzed by using a regression approach.The results showed that the liquidity ratio, profitability ratio, and activity ratio did not affect stock returns, while the solvency ratio and Economic Value Added significantly affected stock returns.