bluuebunny/crossref_metadata_2025 huggingface dataset:
Diabetic ketoacidosis associated with hypertriglyceridemia in the pediatric age group - A case report
Authors: Zorrón Mariana , Seben Júlia , Camargo Daniela , Nobrega Erika , Fanger Vanessa
Published: September 2024

OBJECTIVE: Report a case of diabetic ketoacidosis (DKA) in the pediatric age group associated with hypertriglyceridemia. Case description: Female patient, 13 years old, previously healthy, with abdominal pain, nausea, vomiting, lowered level of consciousness and hyperglycemia. Diagnosis of primary decompensation of type one diabetes mellitus with DKA was made. After collecting laboratory tests, a lipemic sample was identified and hypertriglyceridemia was confirmed. In addition to the DKA treatment, the patient required statin treatment with an improvement in lipid profile. During hospitalization, the patient did not present elevated levels of serum amylase or lipase or change in imaging tests that could suggest pancreatitis. COMMENTS: The differential diagnosis between DKA associated or not with acute pancreatitis is challenging due to the overlapping symptoms and laboratory tests. DKA is a severe complication mainly related to type 1 diabetes mellitus and its association with other disorders can worsen the prognosis. There is a lack of data in the literature regarding the treatment of acute hypertriglyceridemia. As far as the authors are aware, this is the first Brazilian case report in the pediatric age group of DKA associated with severe hypertriglyceridemia.
Clinical radiological dissociation in an infant with pulmonary tuberculosis: case report
Authors: Vieira Débora , Souza Filho Rafael , Vieira Rebecca , Arco Ana , Araújo Juliènne , Prillwitz Clarissa , Schmidt Christiane , Cardoso Claudete
Published: September 2024

Pulmonary tuberculosis (TB) is a preventable treatable and infectious disease caused by Mycobacterium tuberculosis (Mtb). The infection occurs through the inhalation of droplets expelled by an individual with the active disease. Most cases develop latent infection, and a minority manifest the active form of the disease. As in adults, TB in children has predominantly pulmonary involvement, and usually present with non specific symptoms such as fever, respiratory distress, cough, weight loss or no gain, rales and wheezing. The etiological diagnosis is difficult due to the reduced number of bacilli in the lesions. This is the case of a 5 month old infant, female, previously healthy, with a persistent cough for three months, with chest wheeze and inappetence, but without manifestation of fever. The chest X-ray showed extensive lung consolidation affecting the entire right hemithorax. During hospitalization, the patient showed no improvement in the radiological appearance despite the use of broad-spectrum antibiotics. The diagnosis of Mtb infection was confirmed by a polymerase chain reaction test (Xpert Ultra MTB-RIF®). The patient was discharged to complete the treatment - rifampicin-isoniazid-pyrazinamide in an outpatient clinic with good clinical outcome. Due to the particularities of pediatric TB, highlightining the non-specificity of the signs and symptoms and the paucibacillary lesions, one must beawared of this diagnosis, especially in the presence of radiological clinical dissociation.
Epidemiology of Hamstring Strain Injuries in Elite Male Australian Football Players: An Analysis of 773 Injuries Over 7 Seasons
Authors: Breed Ray , Opar David , Maniar Nirav , Pizzari Tania
Published: September 2024

OBJECTIVE: To describe the incidence, recurrence, and time loss until achievement of recovery milestones of hamstring strain injuries (HSIs) across 7 playing seasons using data from the Soft Tissue Injury Registry of the Australian Football League (STRAFL).

STUDY DESIGN: Descriptive epidemiology study.

METHODS: Eighteen AFL teams participated in the STRAFL in at least 1 season between 2014 and 2020 (average 15.7 teams per season). Details of each clinically diagnosed HSI were recorded on a standardized injury surveillance form by medical staff.

RESULTS: 773 HSIs from 424 different players were reported, with each team averaging 7 HSIs per season. Of all in-season injuries, 72% occurred during competitive games. The biceps femoris was most commonly injured (84%) followed by the semimembranosus (11%). Recurrent HSIs accounted for 26% of all injuries, with 52% occurring within 2 months of the index injury. The majority (93%) of recurrent injuries were to the biceps femoris. Return to play was 30 ± 19 days for index injuries and 36 ± 22 days for recurrent injuries.

CONCLUSIONS: An average of 7 HSIs per season per club were sustained, including a recurrence of 26%, with most injuries occurring within in-season competitive games. The biceps femoris took longer than the medial hamstrings to reach recovery milestones of running at >90% top speed, return to full training, and return to play. JOSPT Open 2024;2(4):289-296. Epub 15 July 2024. doi:10.2519/josptopen.2024.0359
Supportive and Palliative Care Needs of the Older Adults with Stroke and Neurological Diseases: An Estimation using data from Longitudinal Ageing Study in India
Authors: Immanuel Terrymize , Salins Naveen , Sundararaj Jenifer Jeba , Gursahani Roop , Thomas M Benson
Published: September 2024

Objectives:

The prevalence and burden of neurological diseases are high among the older age group. Stroke and other neurological diseases significantly impair functional capacity and lead to poor quality of life. This study aims to provide a national-level estimate for palliative and supportive care needs among older Indian adults with stroke and other neurological diseases.

Materials and Methods:

The Longitudinal Ageing Study in India (LASI), a national-level survey of older adults, was used as a representative sample to estimate palliative and supportive care needs. The supportive and palliative care indicator tool income setting (SPICT-LIS) was used to identify palliative care needs in older adults with stroke and other neurological diseases. A total of 31,902 older adults aged 60 years and above were identified from the LASI data, and among them, 1458 older adults with stroke and other neurological diseases were selected for the analysis. The SPICT-LIS indicators were compared with the selected LASI data. Both univariate analysis and multivariate logistic regression were performed to determine the association between supportive and palliative care needs and background characteristics of older adults.

Results:

The analysis showed that 63.6% of older adults with stroke and other neurological diseases in India have supportive and palliative care needs. In regression analysis, the burden of supportive and palliative care needs was observed to be high among older adults who were in the underweight, overweight/obese category, who experienced ill-treatment, and who had diabetes and hypertension. In contrast, the burden of supportive and palliative care needs was observed to be low among older adults with stroke and neurological diseases who belonged to richer and richest economic quintiles, those receiving at least one social support scheme, those engaged in social activity and those performing physical activity.

Conclusion:

The palliative care needs among the older adult population with stroke and other neurological diseases in India are high. The findings of this study underscore the importance of screening for supportive and palliative care needs among patients with stroke and other neurological diseases to identify these unmet needs. The workforce trained in the provision of generalist and specialist palliative care will be required to meet this need, and the population of older adults is estimated to double in the next three decades.
Splenic Rupture During Pregnancy: A Misdiagnosed, Rare Obstetrical Emergency
Authors: Sharma Tanu , Kumari Archana , Srivastava Kritika
Published: September 2024

Splenic rupture in pregnancy is a rare entity, and the exact ethology is not very clear. Splenic rupture during pregnancy can be due to trauma or spontaneous due to other non-traumatic causes like hemophilias, leukaemia, kalazaar, splenic artery aneurysm, etc. Patients usually present in 3rd trimester and are frequently misdiagnosed as a case of placental abruption or uterine rupture. It leads to hypovolumic shock and increases maternal and fetal morbidity and mortality. Here, we have presented 3 cases of spontaneous splenic rupture and injury without any antecedent history in the first case, after a fall in 2nd case, and associated with kalazaar in 3rd case. Two patients were managed conservatively and had uneventful postoperative period, while splenectomy was done in one case, and feto-maternal mortality was seen in the same. The first two cases were preoperatively misdiagnosed as uterine rupture, and 3rd case was postoperatively diagnosed as Kalazaar. There is a need to enhance the knowledge of this rare condition in pregnancy as it is usually misdiagnosed and lethal for both mother and foetus.
FEATURES OF PUBLIC RELATIONS IN THE NORTH-WESTERN CAUCASUS IN THE XIX CENTURY
Authors: ПАНЕШ А.Д.
Published: September 2024

В статье в рамках сложившейся исследовательской традиции рассмотрены различ ные аспекты общественной жизни адыгов XIX в. В работе показаны основные формы и особен ности социальной организации адыгов. При этом основное внимание обращается на изменения, произошедшие в системе общественных отношений в Черкесии под воздействием внешних фак торов. В статье отмечается, что изменения в общественной жизни оказали влияние на тради ционные представления, установки и стереотипы поведения адыгов.

In the article, within the framework of the established research tradition, various aspects of the social life of the Adygs of the XIX century are considered. The paper shows the main forms and features of the social organization of the Adygs. At the same time, the main attention is paid to the changes that have occurred in the system of public relations in Circassia under the influence of external factors. The article notes that changes in public life have influenced the traditional ideas, attitudes and stereotypes of the behavior of the Adygs.
SCIENTIST, EDUCATOR, ORGANIZER (TO THE 70TH ANNIVERSARY OF THE BIRTH OF S.N. ASKHABOV)
Authors: БЕТИЛГИРИЕВ М.А.
Published: September 2024

В работе рассмотрены основные этапы жизненного пути и научной деятельности Асхабова Султана Нажмудиновича, доктора физико-математических наук, профессора Чечен ского государственного университета им. А.А. Кадырова, известного своим вкладом в теорию нелинейных дискретных, интегральных и интегро-дифференциальных уравнений.

The work examines the main stages of the life path and scientific activity of Sultan Nazhmudi novich Askhabov, Doctor of Physical and Mathematical Sciences, Professor of Kadyrov Chechen State University, known for his contribution to the theory of nonlinear discrete, integral and integro-differential equations.
Domestic Sationary Systems of Vibration Control and Mechanical Movements for Electric Power Pumps of Thermal Power Plants
Authors: Гофман П.М. , Ковалев И.В. , Тынченко Я.А. , Кирьянов И.И. , Колесник В.В.
Published: September 2024

В статье рассматривается возможность применения отечественных стационарных систем виброконтроля и механических величин для питательных электронасосов котлоагрегатов энергоблоков средней мощности тепловых электростанций, в частности, осуществление автоматизированного контроля абсолютной вибрации опор подшипников, осевого сдвига и оборотов с учетом требований нормативных документов. Выполнен обзор и анализ рынка стационарных систем контроля вибрации и механических величин, их технических и метрологических характеристик. Рассмотрена возможность интеграции отечественных стационарных систем контроля вибрации и механических величин в блочные АСУ ТП и ИАСУ ТП (интегрированные автоматизированные системы управления технологическим процессом) энергоблоков тепловых электростанций средней мощности, применение их в различных подсистемах, включая подсистему технологических защит и защитных блокировок. Произведена оценка соответствия нормативным документам, регламентирующим построение таких систем с учетом требований надзорных органов. Статья будет полезна эксплуатирующим организациям-заказчикам, а также проектировщикам при оснащении питательных электронасосов котлов энергоблоков средней мощности тепловых электростанций стационарными системами контроля вибрации и механических величин.

The article discusses the possibility of application domestic stationary vibration control systems and mechanical quantities for electric feed power pumps of boilers of power units of medium power of thermal power plants, in particular, the implementation of automated control of absolute vibration bearings, axial shift and speed, taking into account the requirements of regulatory documents. The review and research of the market of domestic developers and producers of stationary systems of control of vibration and mechanical sizes is carried out. A comparative analysis of their technical and metrological characteristics. Compliance and possibility of integration of domestic stationary systems of control of vibration and mechanical sizes in blocks of Automated technological process control systems with creation of IAS (the integrated automated systems of control of technological process) of power units of thermal power plants of medium power, and their application in various subsystems, including subsystem of technological protections and protective locks, the normative documents regulating construction of such systems taking into account requirements of Supervisory authorities is considered. The article will be useful to operating organizations-customers, as well as designers, when equipping feed electric pumps of boilers of power units of medium power of thermal power plants with stationary systems of vibration control and mechanical quantities.
EVALUATION OF THE RELIABILITY OF THE RESULTS OF MODELING THE PROCESSES OF FUNCTIONING OF AVIATION COMPLEXES
Authors: Николаев С.В. , Жиделев А.В.
Published: September 2024

Рассматриваются вопросы оценки сходимости результатов моделирования и летных экспериментов в процессе проведения летных испытаний авиационных комплексов. Предлагается, случаи оценки сходимости полученных параметров группировать по признакам объема имеющейся информации, и в зависимости от этого должен быть применен тот или иной метод оценки сходимости. Сформулированы принципы использования критериев оценки сходимости результатов моделирования и летных экспериментов. На конкретных примерах показана применимость предложенного подхода с использованием критериев Смирнова, Фишера, Вилкоксона, гипотезы равенства вероятностей и других.

The issues evaluating the convergence simulation results and flight experiments in the process of conducting flight tests of aviation systems are considered. It is proposed that the cases assessing the convergence of the parameters obtained should be grouped according to the signs the amount of available information, and depending on this, one or another method of evaluating the convergence should be applied. The principles using criteria for assessing the convergence of simulation results and flight experiments are formulated. The specific examples show the applicability of the proposed approach using the criteria of Smirnov, Fisher, Wilcoxon, the hypothesis equality of probabilities, and others.
EFFECT OF MEDIUM PH ON THE ALUMINUM TOXICITY TO MICROALGAE
Authors: Михеев М.А. , Ипатова В.И.
Published: September 2024

Водородный показатель (рН) является одним из важных экологических факторов регуляции процессов роста и размножения водорослей в природных условиях и культурах. Исследовали влияние начального рН среды на токсичность хлорида алюминия для культуры водоросли Scenedesmus quadricauda (Thurp.) Breb., широко используемой в биотестировании в качестве тест-объекта. Токсичность хлорида алюминия сильно зависит от рН среды. Малые и средние концентрации (0,4…50 мг/л) токсиканта существенно не изменяют начальный рН среды, а высокие (100 мг/л и более) приводят ее к закислению. При искусственном подкислении среды с рН 7,2 до 5,2 в начале опыта концентрация 0,04 мг Al3+/л, соответствующая уровню ПДК алюминия в воде рыбохозяйственных водоемов, становится токсичной для микроводорослей, а токсичность более высоких концентраций (1 и 10 мг/л) хлорида алюминия возрастает. Искусственное подщелачивание среды с рН 4,39 до 7,2 полностью снимает токсичность высокой концентрации 100 мг/л AlCl3 для микроводоросли S. quadricauda. Ацидификация водной среды увеличивает растворимость, доступность и токсичность не только алюминия, но и других потенциально токсичных металлов.

Hydrogen index (pH) is one of the important environmental factors regulating the growth and reproduction of algae in natural conditions and cultures. The effect of the initial pH of the medium on the toxicity of aluminum chloride to the culture of the alga Scenedesmus quadricauda (Thurp.) Breb., widely used in bioassay as a test object, was investigated. The toxicity of aluminum chloride is highly dependent on the pH of the medium. Low and medium concentrations (0,4…50 mg/l) of the toxicant do not significantly change the initial pH of the medium, and high concentrations (100 mg/l and more) lead to acidifi cation. Under artifi cial acidification of the medium from pH 7,2 to 5,2 at the beginning of the experiment, the concentration of 0,04 mg Al3+/l, corresponding to the MPC of aluminum in the water bodies, becomes toxic to S. quadricauda, and the toxicity of higher concentrations 1 and 10 mg/l of aluminum chloride increases. Artificial alkalinization of the medium, changing the pH from 4,39 to 7,2, completely removes the toxicity of a high concentration of 100 mg/l AlCl3 to microalga S. quadricauda. Acidification of the aquatic environment increases the solubility, availability and toxicity of not only aluminum, but also other potentially toxic metals.
A nanoparticle contrast agent enables dynamic microscale X-ray computed tomography imaging of the soil aqueous phase
Authors: Wang Shuchen , Constantinou Anna , Zhang Guanglei , Zhang Yihuai , Shojaei Mohammad Javad , Zhou Bo , Jones Davey , Roose Tiina , Blunt Martin , Georgiou Theoni , Dunlop Iain
Published: September 2024

The current need to develop alternative agricultures that preserve soil health with a reduced contribution to climate change, has led to a growth of interest in understanding natural processes within soil. This creates a demand for 3D imaging techniques that dynamically image soil processes such as fluid and nutrient transport with high resolution. Microscale X-ray computed tomography (X-CT) delivers high-contrast and high-resolution (down to ~1 m) imaging of soil mineral phases. However it does not readily distinguish low-density aqueous and organic phases, nor image water transport. Here we have developed polymer-templated gold nanoparticles as a contrast agent to label the aqueous phase in soil, with gold selected for low toxicity. Nanoparticles are generated by templated synthesis within pre-assembled block copolymer micelles, poly(2-(dimethylamino)ethyl methacrylate)-block-poly[poly(ethylene glycol) methyl ether methacrylate)], poly(DEAEMA-b-PEGMA), to intrinsically exhibit a stabilizing PEG-bottlebrush corona. Block copolymers are generated by group transfer polymerization (GTP). Overall, this process generates gold nanoparticles at high concentrations and in large volumes for soil imaging. The nanoparticles show exceptional colloidal stability (to at least 4M ionic strength), and are stable in the challenging soil environment, showing no adsorption to the soil mineral phase. X-CT imaging within soil distinguished aqueous phase labelled with the nanoparticle contrast agent from unlabelled aqueous phase, at ~ 5 mg/ml Au. In a transport experiment, we determined the effective bulk diffusion constant of the nanoparticle system in water to be 1.1 0.3 10-10 m2s-1. Intriguingly, this is greater than the single particle diffusion constant in dilute solution, suggesting a role for crowding effects. Taken together, these results demonstrate this nanoparticle system as an effective and practical contrast agent for imaging flow and transport processes in living soil.
Norm-conserving 5f-in-core Pseudopotentials and Gaussian Basis Sets Optimized for Tri- and Tetra-Valent Actinides (An = Pa-Lr)
Authors: Lu Jun-Bo , Zhang Yang-Yang , Liu Jian-Biao , Li Jun
Published: September 2024

Relativistic pseudopotentials and basis sets are the workhorse for modeling heavy elements of lanthanides and actinides. The norm-conserving Goedecker, Teter, and Hutter (GTH) pseudopotential is advantageous for modeling lanthanides and actinides compounds and condensed systems because of its transferability and accuracy. In this work, we develop a set of well-benchmarked GTH-type 5f-in-core pseudopotentials with scalar-relativistic effects, together with associated Gaussian basis sets for the most commonly encountered trivalent and tetravalent actinides (An(III), An(IV); An = Pa-Lr). The 5f-in-core GTH pseudopotentials are constructed by placing 5f-subconfiguration 5fn open shells of An(III) and 5fn-1 of An(IV) (n = 2-14) into the atomic core in the core-valence separation. The different performances of 5f-in-core GTH pseudopotentials for trivalent and tetravalent actinides are further analyzed from the chemical bonding features of actinides. The formalism of 5f-in-core GTH pseudopotentials circumvent the computational difficulty arising from 5fx open valence shell. The optimized 5f-in-core GTH PPs and Gaussian basis sets can be used to accelerate the costly first-principles modeling of structure-complicated actinide compounds and condensed-phase actinide systems.
Defluorinative C−O Coupling between Trifluoromethylarenes and Alcohols via Copper Photoredox Catalysis
Authors: Saha Priya , Jin Mingoo , Huang Dennis Chung-Yang
Published: September 2024

Fluorine-containing compounds have shown unparalleled impacts in the realm of functional molecules, and the ability to prepare novel structures has been crucial in unlocking new properties for pharmaceutical and materials science. Herein, we report a copper-catalyzed, photoinduced defluorinative C‒O coupling between trifluoromethylarenes and alcohols. This method allows for direct access to a wide selection of difluorobenzylether (ArCF2OR) molecules, including a com-pound displaying liquid crystal behavior. Through slight modification of the protocol, we were able to generate ArCF2I products, another class of synthetically useful fluorine-bearing molecules. Comprehensive mechanistic investigations first suggested ArCF2I as a reservoir to steadily supply the key ArCF2• radical species. Furthermore, experimental evi-dence supported a mechanism consisting of two collaborative cycles: C‒F activation operated by a homoleptic Cu(I) co-ordinated by two bisphosphine ligands as the photocatalyst and C‒O coupling promoted by a Cu(I) ligated by a single bisphosphine ligand. The critical roles of the two salt additives, lithium iodide and zinc acetate, in orchestrating the two cycles were also elucidated. This dual-role copper catalyst demonstrates the power of base metal photoredox catalysis in achieving both substrate activation and chemical bond formation via a single catalytic system.
Single-Cell Analysis of Perturbations in the Bacterial Cell Envelope Enabled by Monitoring Generalized Polarization of a Nile Red-Based Solvatochromic Peptide UNR-1
Authors: Weiss Lucille , Bonnet Dominique , Dziuba Dmytro , Karpenko Julie
Published: September 2024

The worldwide spread of antibiotic resistance is considered to be one of the major health threats to society. While developing new antibiotics is primordial, there is also a high need for next-generation analytical methods for surveying the physiological state of live bacteria in heterogeneous populations and their response to environmental stress. Here we report a single-cell high-throughput method for monitoring bacterial stress and environmental adaptation based on ratiometric flow cytometry. We used a combination of a sensitive fluorescent molecular tool, the red solvatochromic antimicrobial peptide UNR-1 with defined cellular localization in Gram-positive and Gram-negative bacteria, with a robust protocol of calculating generalized polarization (GP) of fluorescence adapted to flow cytometry. Our methodology enabled rapid detection of perturbations in the bacterial cell envelope caused by heat shock, transfer to a nutrient-poor medium, fixation, and exposure to antibiotics.
BindingDB in 2024: a FAIR Knowledgebase of Protein-Small Molecule Binding Data
Authors: Liu Tiqing , Hwang Linda , Burley Stephen K , Nitsche Carmen I , Southan Christopher , Walters W. Patrick , Gilson Michael K.
Published: September 2024

BindingDB (bindingdb.org) is a public, web-accessible database of experimentally measured binding affinities between small molecules and proteins, which supports diverse applications including medicinal chemistry, biochemical pathway annotation, training of artificial intelligence models, and computational chemistry methods development. This update reports significant growth and enhancements since our last review in 2016. Of note, the database now contains 2.9 million binding measurements spanning 1.3 million compounds and thousands of protein targets. This growth is largely attributable to our unique focus on curating data from US patents, which has yielded a substantial influx of novel binding data. Recent improvements include a remake of the website following responsive web design principles, enhanced search and filtering capabilities, new data download options and webservices, and establishment of a long-term data archive replicated across dispersed sites. We also discuss BindingDB's positioning relative to related resources, its open data sharing policies, insights gleaned from the dataset, and plans for future growth and development.
Molecular simulation study of all-silica zeolites for the adsorptive removal of airborne chloroethenes
Authors: Fischer Michael
Published: September 2024

Chloroethenes are produced and consumed in various industrial processes. As the release of these compounds into air, water, and soils can pose significant risks to human health and the environment, different techniques have been exploited to prevent or remediate chloroethene pollution. Although several previous experimental and computational studies investigated the removal of chloroethenes using zeolite adsorbents, their structural diversity in terms of pore size and pore topology has hardly been explored so far. In this work, molecular simulations using validated empirical force field parameters were used to study the gas-phase adsorption of chloroethenes in 16 structurally distinct zeolite frameworks. As all these frameworks are synthetically accessible in high-silica form, the simulations used purely siliceous zeolite models. In the most relevant concentration range (0.1 to 10 ppm by volume), substantial uptakes of tri- and tetrachloroethene were computed for several zeolite frameworks, prominently EUO, IFR, MTW, MOR, and BEA. In contrast, vinyl chloride uptakes were always too low to be of practical relevance for adsorptive removal. For selected frameworks, simulation snapshots were analysed to investigate the impact of pore shape and, at higher uptakes, guest-guest interactions on the adsorption behaviour. Hence, this study not only identifies zeolites that should be prioritised in future investigations, but also contributes to the microscopic understanding of chloroethene adsorption in crystalline microporous materials.
Reaction-diffusion coupling across scales during the induction period of methanol-to-olefin conversion over ZSM-5 catalysts
Authors: Omojola Toyin
Published: September 2024

The coupling of reaction and diffusion across the catalyst pore, grain, pellet and reactor bed has been studied using a combination of novel theoretical concepts for incorporating dynamics into kinetics, and a particle-resolved transient microkinetic model applied to temperature-programmed desorption (TPD), and step response studies of methanol, and dimethyl ether over ZSM-5 catalysts, respectively. A resolution of TPD profiles showcases the coupling between adsorption, desorption, and surface diffusion across scales. Six dynamic models are investigated to describe the 44-min induction period in the first step-response cycle and the 95% reduction in induction period in subsequent step-response cycles of dimethyl ether conversion at constant temperature. These include coverage, fixed site-interconversion, dynamic site-interconversion, mass transport of gas, and adsorbed species, and anomalous surface diffusion. None of these dynamic models could explain the overall step-response studies. A combination of adsorption, desorption, and surface reaction of dimethyl ether occurs alongside with competitive adsorption of water and methanol leading to a series of stable intermediates that produce propylene after a 44-min induction period. These intermediates are best described within the methoxymethyl mechanism. The reduction in induction period is due to high binding energies of dimethyl ether such that lower competitive adsorption occurs, fewer stable intermediates exist and a more direct pathway towards propylene formation is followed. The optimum surface coverage of the dissociative products of dimethyl ether (surface methoxy groups, methanol) is the key descriptor that governs the changing induction period behaviour at constant temperature. This site-distribution has a major influence on the dynamic reactor models which predict catalyst activity and product selectivity during methanol-to-olefin conversion. First-principles particle-resolved transient microkinetic models bridge the gap between transient molecular models for the pores and microkinetic models for the grain, pellet, and reactor bed scales.
Byung-Chul Han, "Kryzys narracji". W: tegoż, "Kryzys narracji i inne eseje". tłum. R. Pokrywka. Wydawnictwo Krytyki Politycznej, Warszawa 2024, s. 134–199.
Authors: Czyżewski Marek
Published: September 2024

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Historie z potencjałem, czyli storytelling w kierowaniu szkołą jako organizacją uczącą się
Authors: Tołwińska Bożena
Published: September 2024

Przedmiotem podjętej analizy jest potencjał opowieści (storytellingu) w pracy kierowniczej. Głównym celem artykułu jest przedstawienie storytellingu w roli metody wspomagającej kształtowanie kultury szkoły jako organizacji uczącej się, a także zainspirowanie do dostrzeżenia i wypróbowania potencjału opowieści w procesie kierowania placówką edukacyjną. W świetle nieustannie dokonujących się w świecie zmian zachodzi potrzeba głębokiej reorganizacji modelu szkoły – od instytucji nauczającej do uczącej się. Podstawowym założeniem procesu kierowania organizacją uczącą się jest rozwijanie współpracy opartej na otwartej komunikacji polegającej na ujawnianiu i uzgadnianiu różnych punktów widzenia, akceptacji odmiennej percepcji zachodzących zdarzeń, praktykowaniu krytycznej refleksji w celu zmiany i doskonalenia codziennych praktyk w uczących się społecznościach. W szkołach rozwijających się w kierunku organizacji uczących się nabiera znaczenia współtworzenie wizji przez wszystkie podmioty oraz wdrażanie zmian niezbędnych do uzyskania wspólnie wypracowanych wartości. W tekście podjęto próbę odpowiedzi na pytanie: Jakie walory storytellingu mogą być wykorzystane we wsparciu działań kierowniczych zmierzających do kształtowania kultury placówki edukacyjnej jako organizacji uczącej się? Przedstawiono przy tym w syntetycznym ujęciu uniwersalny charakter opowieści oraz możliwości wykorzystania jej w praktyce kierowania szkołą.
Tom Vine, Sarah Richards (eds.), "Stories, storytellers, and storytelling", Palgrave Macmillan, Cham 2023, XVII, ss. 305.
Authors: Kukiełko Kalina
Published: September 2024

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SISTEMAS PARA IN[FORM]AÇÃO
Authors: Fonseca Matias Lindon
Published: September 2024

Até o presente momento, a tecnologia de Sistema de Informações Geográficas (SIG) tem sido analisada privilegiando-se um ponto de vista meramente técnico. Isso decorre, em grande parte, da adoção de uma postura metodológica de base positivista. Tal abordagem é insuficiente para compreender a dimensão social e política inerente ao uso das chamadas geotecnologias na ciência geográfica. Por esse motivo, propõe-se uma nova abordagem centrada num paradigma crítico onde tal tecnologia passa a ser analisada como instrumento segundo a tríade lefebvriana das práticas espaciais, das representações do espaço e dos espaços de representação. Nesta perspectiva o SIG torna-se mais que um mero sistema de informação, um verdadeiro sistema de formação e de ação.
ÁREAS RESTRITIVAS À OCUPAÇÃO URBANA NA REGIÃO ADMINISTRATIVA DE SOBRADINHO - DF
Authors: Lacerda Lima Antônio , Sanzio Araújo dos Anjos Rafael
Published: September 2024

O trabalho aborda o problema dos espaços restritivos, físicos e institucionais, ligados ao processo de expansão urbana no território do Distrito Federal, particularmente na região da localidade de Sobradinho. O trabalho apresenta de forma sintética como os vários planos diretores do Distrito Federal trataram a questão dos territórios impróprios para a urbanização. A pesquisa faz uma investigação detalhada na Região Administrativa de Sobradinho (RA - V) mostrando as restrições físicas e institucionais e os conflitos existentes no processo real de ocupação deste território.
ORGANIZAÇÃO E FORTALECIMENTO DE UM GRUPO SOCIAL LIGADO À CULTURA POPULAR E A CONQUISTA DO SEU ESPAÇO NO CENÁRIO SÓCIO-CULTURAL DO RECIFE: O CASO DAS AGREMIAÇÕES CULTURAIS (CARNAVALESCAS) DE BOIS DE CARNAVAL
Authors: Moura de Castilho Cláudio Jorge
Published: September 2024

Neste ensaio, analisa-se o papel da organização e do fortalecimento do grupo cultural Bois de Carnaval, ligado à cultura popular no processo de conquista do seu espaço no cenário sócio-cultural da cidade do Recife – estado de Pernambuco. Isto numa perspectiva geográfica para a qual o espaço é, ao mesmo tempo, uma existência corpórea e uma existência relacional; uma totalidade em permanente processo de totalização. Nesse sentido, buscando a natureza sócio-filosófica desse processo, delineamos alguns elementos inerentes à organização e ao fortalecimento do referido grupo cultural visando ao seu reconhecimento; chamamos a atenção à necessidade de delimitar e articular forças com outros atores sócio-espaciais; aventamos novas necessidades de pensar e atuar sócio-espacialmente; e delimitamos alguns impasses a serem superados pelo movimento social.
EFEITO DA APLICAÇÃO DE ROCHAS SILICÁTICAS SOBRE A COMUNIDADE MICROBIANA DURANTE O PROCESSO DE COMPOSTAGEM
Authors: Lustrino Borges Wardsson , Ribeiro Passos Samuel , Mansur Almeida Aline , Trippia dos Guimarães Peixoto Ricardo , Gouvêa Rumjanek Norma , Ribeiro Xavier Gustavo
Published: September 2024

A aplicação de composto orgânico produz múltiplos efeitos sobre o solo e a nutrição das plantas melhorando a eficiência de uso dos nutrientes. Diferentes substratos orgânicos têm sido utilizados, no entanto, poucos são os trabalhos que testam fontes inorgânicas no processo de compostagem. O objetivo deste trabalho foi avaliar por meio da técnica de DGGE o efeito da aplicação das rochas silicáticas sobre a comunidade microbiana durante o processo de compostagem. Foi observada uma alteração no perfil de bandas da comunidade bacteriana visualizado nos géis como resultado da aplicação das rochas brecha alcalina e flogopitito durante o período do estudo.
AVALIAÇÃO DA FLOGOPITITO COMO FONTE ALTERNATIVA DE POTÁSSIO NA CULTURA DO FEIJÃO EM LATOSSOLO DO CERRADO BAIANO
Authors: Da Silva Jailson Francisco , Soares Neto Joaquim Pedro , Macedo Gomes Jean Carlos , Abreu Lima Wesley , Andrade Silva Luiz Cláudio , Conceição4 Herbet
Published: September 2024

Este trabalho foi conduzido na cultura do feijão (Phaseolus vulgaris L.) para avaliar a eficiência do flogopitito moído (<0,3 mm) como fonte alternativa de potássio em Latossolo do Cerrado baiano. O delineamento experimental utilizado foi inteiramente casualizado com quatro repetições e sete tratamentos. Os parâmetros analisados foram: biomassa fresca da parte aérea, biomassa seca da parte aérea, comprimento do sistema radicular, altura de planta. Os resultados obtidos indicam que todos os tratamentos com cloreto de potássio foram melhores do que adubo de potássio obtiveram valores inferiores aos da fonte KCl.
PARTICIPAÇÃO POPULAR NO PLANEJAMENTO URBANO – A FORÇA DO COLETIVO NA MUDANÇA DA CIDADE / PLANO DIRETOR DE GUAPÓ/GOIÁS – 2007
Authors: David Gonçalves Marcos , Felício Chaveiro Eguimar , Lacerda Mata Clarisse
Published: September 2024

Iniciam-se novas discussões sobre os parâmetros estabelecidos como ideais para a cidade, vê-se a necessidade de reconhecer os conflitos existentes, legalizar a cidade real e integrar o planejamento e a gestão da cidade. Essa nova concepção vem reconhecer que a cidade é produzida por uma multiplicidade de agentes que devem ter sua ação coordenada que corresponda ao interesse público da cidade. Deve ser reforçada a idéia do Plano Diretor enquanto principal instrumento de política urbana municipal, e como tal, instrumento articulador de planos e ações que visam o desenvolvimento da cidade. Nesse sentido a pesquisa busca analisar, com base no Plano Diretor Democrático do Município de Guapó, se há de fato a convergência entre as ações previstas pelo Plano com o conhecimento produzido pela participação popular.
DETERMINAÇÃO DO POTENCIAL DE EROSÃO A PARTIR DA UTILIZAÇÃO DA EUPS NA BACIA DO RIO PRETO.
Authors: Figueiredo de Freitas Leonardo , Abílio de Carvalho Júnior Osmar , Fontes Guimarães Renato , Trancoso Gomes Roberto Arnaldo , De Souza Martins Éder , Gomes-Loebmann Daniel
Published: September 2024

O desenvolvimento de novas técnicas na agricultura vem possibilitando a expansão das fronteiras agrícolas há algum tempo. Entretanto a preocupação ambiental não seguiu o mesmo caminho e ritmo, principalmente com relação a conservação do solo que é fundamental, porque com a sua degradação também se perde a produtividade, entre outros problemas de igual importância. O planejamento do uso da terra em uma bacia hidrográfica pode servir como um instrumento preventivo à perda de solo. Com isso este trabalho vem contribuir para o planejamento da bacia hidrográfica do rio Preto, analisando a susceptibilidade à erosão, por meio de técnicas de geoprocessamento, na aplicação da EUPS (Equação Universal de Perda de Solos).
RELAÇÃO DOS COMPARTIMENTOS GEOMORFOLÓGICOS COM O USO AGRÍCOLA NA BACIA DO RIO PRETO
Authors: Silveira Borges Maria Elisabete , Dos Santos Soares Frederico , Abílio de Carvalho Júnior Osmar , De Souza Martins Éder , Fontes Guimarães Renato , Trancoso Gomes Roberto Arnaldo
Published: September 2024

O aumento contínuo da população demanda o desenvolvimento de novas tecnologias de produção de alimentos. Umas das tecnologias empregadas é a irrigação mecanizada de grandes áreas, principalmente na forma de pivôs centrais. O presente trabalho tem como objetivo estudar a espacialização dos pivôs centrais na bacia do rio Preto e relacioná-los com as características ambientais presentes na bacia. Os objetivos específicos são: quantificar a área irrigada na bacia, a integração das áreas de irrigação com as unidades geomorfológicas. A metodologia desenvolvida pode ser subdividida nas seguintes etapas: (a) transformação dos dados da imagem de número digital para reflectância (calibração); (b) ajuste por interpretação visual; (c) quantificação da área irrigada na bacia; (d) cruzamento dos pivôs com as unidades geomorfológicas e caracterização dessas áreas de irrigação (e) classificação qualitativa das áreas dos pivôs. Ao analisar a localização dos pivôs centrais com as unidades geomorfológicas e os solos percebe-se que os pivôs prevalecem nas unidades Planaltos e Terraços, isto se justifica por serem áreas mais planas em relação às demais unidades. Em relação ao tamanho das áreas ocupadas, predominam os pivôs com áreas médias e grandes. Constatase a maior ocorrência dos pivôs em relação aos Latossolos e Cambissolos em relevos planos.
O USO DO SPRING NA ANÁLISE DO PROCESSO DE OCUPAÇÃO EM BACIAS HIDROGRÁFICAS DO RIO GRANDE DO NORTE/RN
Authors: De Jesus Lírio Ramalho Maria Francisca , Pessoa Borges Josemberg , Cardoso Bezerra de Farias Leilane Regina
Published: September 2024

Visando a uma análise espacial do processo de ocupação dos solos em bacias hidrográficas que deságuam na costa leste do estado do Rio Grande do Norte, foi cogitado o uso das imagens de Satélite TM/Landsat e CBERS, disponibilizadas pelo INPE, tendo como sorftware o Spring/INPE 4.2, ocasionalmente utilizado para a execução do mapeamento digital da área de 7(sete) bacias de drenagem com suas respectivas formas de ocupação e uso. As referidas bacias compreendem: a bacia do rio Guaju, que também integra área da Paraíba, a bacia do rio Catu, a bacia do rio Pirangi, a bacia do rio Doce, a bacia do rio Maxaranguape, a bacia do rio Punaú e a bacia do rio Boqueirão, todas, com exceção da primeira, estão inseridas no estado do Rio Grande do Norte com foz no litoral leste do mesmo estado. A seleção dessas bacias teve como principal motivo à pequena extensão da área drenada e a demanda do uso dos seus recursos naturais. Dessa análise, pode-se constatar, que a maior interferência das atividades humanas nas bacias analisadas ocorrem nas áreas próximas ao litoral, e que as diferentes fragilidades desses ambientes, entre os diversos aspectos da interferência antrópica refletem mudanças da paisagem natural, onde as áreas expostas ao trabalho do vento e das águas exercem mais facilidade à erosão.
AVALIAÇÃO MORFOLÓGICA DO TEGUMENTO DE FÊMEAS DE PROCERATOPHRYS BOIEI
Authors: Abreu Felsemburgh Flávia , De Brito Gitirana Lycia
Published: September 2024

Apesar das diversas espécies de anuros no Parque Nacional da Serra dos Órgãos (PARNASO), pouco tem sido pesquisado sobre a estrutura morfológica do tegumento desses animais. Baseado neste fato, este estudo teve por objetivo a caracterização do tegumento de fêmeas de Proceratophrys boiei, uma das espécies de anuros que ocorre no PARNASO. Os resultados revelaram que o tegumento é formado por uma epiderme e uma derme, sendo a derme subdividida em camada esponjosa e camada compacta. Na epiderme, o queratinócito é o tipo celular predominante e se organiza formando um epitélio estratificado. Além dos queratinócitos, flask cells também ocorrem. O aspecto rugoso do tegumento se deve a irregularidade da camada córnea e a presença de tubérculos corneificados. Três tipos de glândulas exócrinas ocorrem na derme esponjosa: glândulas mistas, glândulas granulosas e glândulas lipídicas. As glândulas mistas são formadas por células mucosas e células serosas; as glândulas granulares apresentam uma secreção granular acidófila e a glândula lipídica exibe inclusões lipídicas distribuídas entre um material acidófilo de aspecto homogêneo. Assim, o tegumento das fêmeas de P. boiei exibe a mesma morfologia observada para os machos da espécie, não revelando dismorfismo sexual.
SISTEMA DE INFORMAÇÕES GEOGRÁFICAS DE ECOTURISMO (SIGECOTUR) DO PARQUE NACIONAL DA SERRA DOS ÓRGÃOS
Authors: Milhomens Allan , Luciancencov Redivo André , Soares Nascimento Daniela , De Souza Martins Éder , Gonçalves Garcia Flávio , Abílio de Carvalho Júnior Osmar , Antunes Santana Otacílio , Fontes Guimarães Renato , Trancoso Gomes Roberto Arnaldo , De Souza Ribeiro Rosana , Nunes de Oliveira Sandro
Published: September 2024

As aplicações do SIG no ecoturismo permitem identificar destinos turísticos específicos usando um conjunto de critérios e mapas virtuais, como também componentes críticos para os gerentes e os planejadores de parques naturais. A área de estudo é o parque nacional da Serra dos Órgãos com um grande número de opções para visitantes, tais como uma diversidade ecológica, significado histórico e oportunidades de recreação. O SIG desse projeto foi desenvolvido em Mapserver que possibilita criar mapas geográficos, saída cartográfica avançada, sustentação para linguagem popular, sustentação da projeção de mapa, entre outros. Mapserver é um ambiente de desenvolvimento de Open Source para aplicações espaciais permitidas na Internet. No SIGECOTUR uma base de dados foi desenvolvida para a identificação das zonas do ecoturismo que consideram critérios relevantes. Assim, os usuários analisam e visualizam os dados espaciais e não espaciais em um ambiente integrado que consideram as atividades, infra-estrutura disponível e informações dos recursos naturais.
INVENTÁRIO DAS ESPÉCIES VEGETAIS NA SERRA DA CANASTRA, PARQUE NACIONAL DA SERRA DA CANASTRA, MINAS GERAIS, BRASIL
Authors: Antunes Santana Otacílio , Abílio de Carvalho Júnior Osmar , Trancoso Gomes Roberto Arnaldo , Couto Júnior Antônio Felipe , Vasconcelos de Souza Vinícius , Nunes de Oliveira Sandro , Figueiredo de Freitas Leonardo , Fontes Guimarães Renato , De Souza Martins Éder
Published: September 2024

O Bioma Cerrado está dentro das áreas prioritárias para a conservação da biodiversidade do planeta, devido a alta diversidade florística existente entre as savanas mundiais, e pela ameaça de devastação pela mudança do uso da terra. O levantamento das espécies arbóreas, arbustivas, gramíneas, ervas e trepadeiras foi realizado na Serra da Canastra, no Parque Nacional da Serra Canastra (MG), em pontos de amostragem de 2 em 2 Km. As espécies vegetais amostradas somaram-se em 269, sendo 84 espécies arbóreas, 66 arbustivas, 45 ervas, 70 gramíneas e quatro trepadeiras, distribuídas em 43 famílias botânicas. As espécies que tiveram maior densidade por hectares, segundo sua forma de vida foram: A) Cariniana legalis (Mart.) Kuntze., arbórea; B) Dasiphyllum brasiliense (Spreng.) Cabrera, trepadeira; C) Clibadium armanii (Balbis) Sch. Bip. ex Baker, arbustiva; D) Ichnanthus pallens (Sw.) Munro ex Benth., gramínea; e E) Thelypteris patens (Sw.) Small, erva.
SOCIEDADE CONTEMPORÂNEA E CONFLITOS URBANOS EM BRASÍLIA
Authors: Peluso Marília Luiza , Cony Faria Cidade Lúcia
Published: September 2024

Em um cenário de crescente urbanização e aumento de desigualdades, dada a dinâmica que envolve o uso e apropriação do espaço nas cidades, surgem tensões, conflitos e demandas coletivas. Com base em revisão bibliográfica, o artigo discute brevemente a dimensão urbana de conflitos e disputas. Em seguida, apresenta exemplos de movimentos sociais e conflitos urbanos em Brasília, o Distrito Federal, nas primeiras décadas e na fase atual. O texto conclui que, desde a implantação da capital brasileira, o urbanismo moderno não foi capaz de evitar conflitos, inicialmente mais politizados e posteriormente mais pontuais.
Unveiling the eco-storytelling: multimodal layers of meaning in Greenpeace’s environmental videos
Authors: Krysanova Tetiana
Published: September 2024

This paper addresses eco-storytelling as the process of meaning-making in Greenpeace’s environmental videos, with a focus on semiotic and cognitive aspects within a multimodal framework. By combining insights from multimodal discourse analysis and cognitive semiotics, this study explores how Greenpeace’s videos construct environmental issues through the interplay of various modes across different layers of meaning. This study presents a semiotic space within Greenpeace’s videos, highlighting the interplay of signs at the core, involved in a situation and embedded in the worldview. This model allows differentiation of three layers of meaning within the videos: embodied, referential, and ideological. Eco-storytelling involves the strategic use of multimodal elements—visual and auditory modes, including verbal, nonverbal, and cinematic means. These elements construct narratives at embodied, referential, and ideological layers, aiming not only to inform about environmental issues but also to inspire viewers to engage in environmental stewardship and advocacy. The study examines the role of multimodal means in constructing each semiotic layer and investigates the process of conceptual integration based on Brandt’s theory of Mental Space Network. In this framework, embodied, referential, and ideological meanings interact through mental spaces to create a comprehensive narrative that underscores the urgency of environmental action. This research contributes to understanding the complex role of multimodal resources in eco-storytelling and highlights how Greenpeace’s videos foster environmental awareness.