bluuebunny/crossref_metadata_2025 huggingface dataset:
Legowo 2:1 Row Rice Planting System Field School as an Effort to Increase Rice (Oriza Sativa) Production
Authors: Nataliningsih Nataliningsih , Gantini Tuti , Sondari Nunung , Dasipah Euis , Suseno Gijanto Purbo , Mulyana Tatang , Aas Ani
Published: July 2024

The rice production improvement program is carried out to meet the needs and food security of a country, the results of cultivation and post-harvest innovations are delivered in agricultural counseling to be implemented by farmers in an effort to increase their agricultural yields .  One of the results of innovation is how to grow rice with the legowo row 2:1 planting system can be socialized to farmer groups through Field Schools so that farmers can more easily understand and participate in practical demonstrations in the field as part of their experience. The research uses aquantitative approach, and a type of explanatory research type survey research that highlights the causal relationship between research variables and tests the hypotheses formulated. The subject of the study was the Sindang Kerta farmer group, West Java, with a total rice field area planted with rice as much as 2,396 ha by 90 farmers. This study used 2 types of variables, namely free variables and bound variables, each of the variables studied was a free variable 1 (X1) is the institutional or dynamic of farmer groups, the free variable 2 (X2) is a  row legowo 2:1rice planting system, and the bound variable is an increase in rice production produced (Y).   The data obtained were analyzed using SEM PLS. The results of the description of the farmer group institution show that the average value is >4.01, which means that the farmer group institution is very good, Based on the values of path coefficients or path coefficients, the resulting structural equation is as follows: Y = 0.631 X1 – 0.152 X2 which means that group institutions have a positive effect while the legowo row  2:1  planting system has less influence on the production of rice produced.
 
Key word: Planting system, farmer group, yields
Decision making for total removal of erosive lesion in the palate associated with gastroesophageal reflux
Authors: Silva Cristian Gabriel Lemos da Silva e , Silva Júnior Jefferson Pires da , Cavalcante Bruna Mirely da Silva , Gomes Letícia da Silva Soares , Maciel Rubens Pereira , Belém Leandro Coelho , Câmara Jeconias , Silva Flávio Lima do Amaral
Published: July 2024

Objective: To report the clinical management of an inflammatory ulcerated lesion on the palate of a patient with gastrointestinal disorder. Case details: Patient, 48 years old, accompanied by his wife, attended the dental clinic of Nilton Lins University, reporting as the main complaint the presence of a wound on the palate with local burning that appeared in 1 month, increasing in size rapidly. The lesion appears unilaterally in the left posterior region of the hard palate, with an inflammatory characteristic, fibrous consistency and whitish color, indicative of local ischemia accompanied by burning and painful symptoms on palpation. Given the characteristics presented in the case, it was decided to perform an incisional biopsy of the infected tissue and part of the healthy tissue, with subsequent histopathological evaluation following the hypothesis of necrotizing sialometaplasia or mucoepidermoid carcinoma. After confirmation, the total removal of the pathological content was performed, showing success in the chosen procedure after 1 year of follow-up. Final considerations: The conduct of case proved resolute. It is interesting to point out that the investigation of related triggering factors is essential, considering the strong association between gastrointestinal disorders; chemical and/or traumatic events with the manifestation of this pathology, ruling out the hypothesis of malignant alteration.
Treating Chronic Pruritus: Are We at the Threshold of a Breakthrough?
Authors: Smith Payton
Published: July 2024

Chronic pruritis, characterized by persistent itchiness lasting more than six weeks, affects up to 15% of the population, significantly impairing quality of life. Despite its prevalence and impact, there is an absence of FDA-approved medications specifically for the treatment of chronic pruritus, highlighting a significant unmet need in dermatology. Advancements in dermatologic medications, however, including the development of biologics and Janus kinase (JAK) inhibitors, signal potential breakthroughs in pruritus management through a radically different mechanism of action that focuses on their effect on the nervous system. Currently, the most commonly utilized treatments for pruritis are sedating antihistamines, which have been largely ineffective for non-histamine-induced itch, underscoring the necessity for novel approaches. This editorial reviews key studies and clinical trials with a particular focus on cases of prurigo nodularis, where itch serves as the primary pathology rather than just a symptom. The effectiveness of dupilumab in phase III trials for treating prurigo nodularis, independent of its effects on dermatitis or atopic background, alongside the success of JAK inhibitors in managing chronic idiopathic pruritus, indicates a shift towards therapies that directly and specifically target itch nerve pathways instead of indirectly via immune system modulation or sedation. These developments suggest that significant progress may be on the horizon for treating chronic itch, providing hope for those suffering from pruritis, the number one cause of misery in dermatology.
Successful Tralokinumab Treatment for Hand and Foot Atopic Dermatitis in a Patient with Skin of Color: A Case Report
Authors: Love Porcia , Walker Chloe
Published: July 2024

Atopic dermatitis (AD) is a common chronic inflammatory skin condition that disproportionately affects skin of color patients. New targeted biological therapies such as tralokinumab are available for the management of AD, but real-world evidence of their clinical effectiveness in skin of color patients is limited, particularly in patients with difficult-to-treat hand and foot involvement. In this report, we present a case of recalcitrant atopic dermatitis with hand-foot involvement in a skin of color patient successfully treated with tralokinumab.
Steatocystoma Multiplex Suppurativa Treated Successfully with Adalimumab and Topical Tofacitinib
Authors: McCune Mariana , Graff Aaron , Harview Christina , Ackerman Lindsay
Published: July 2024

Steatocystoma multiplex (SM) is a rare chronic dermatologic condition which may cause significant distress and negatively impact quality of life. Currently, there is no consensus for treatment. When inflammatory, it is called steatocystoma multiplex suppurativa, an even more rare condition that has shown reported success with anti-TNF-alpha therapy. We describe a patient case wherein adalimumab prescribed for autoimmune arthritis resulted in SMS remission, further supported with evidence of sustained remission with topical tofacitinib. This patient case supports other evidence showing adalimumab as a treatment option for SMS and highlights the potential of tofacitinib as a novel treatment.
Pain Management of Refractory Hidradenitis Suppurativa: Case Report
Authors: Burshtein Aaron , Shekane Paul
Published: July 2024

Background: Hidradenitis suppurativa (HS) is a chronic, relapsing, and painful inflammatory condition of the skin. Pain in HS is one of the most common symptoms and has a devastating effect on quality of life. Here, we present a unique case of a patient with HS and pain management guidelines used to treat her condition. 
Case Report: This is a 42-year-old woman with a history of HS, hypertension, depression who presented with one month of pain in her groin crease, vulva, and rectum. She was recently discharged from the hospital for HS superinfection. She was treated with intravenous and oral antibiotics. She previously tried treatment with acetaminophen, lidocaine 2% jelly, gabapentin 400 mg TID, oxycodone, dilaudid, adalimumab, infliximab, topical clindamycin, intralesional steroid injections, and doxycycline. The pain management specialist recommended continuing treatment with gabapentin 400 mg TID and titrate to 600 mg TID as tolerated, and to follow up with the dermatology team to restart infliximab.
Discussion: This case demonstrates a complicated, refractory HS condition that necessitates first, second, and third line treatment modalities. Pain control in HS starts by having best control of the underlying disease. The United States and Canadian Hidradenitis Suppurativa Foundations clinical guidelines suggest acute pain management should include topical analgesics (ie, lidocaine), oral acetaminophen, and oral nonsteroidal anti-inflammatory drugs. Chronic pain management should focus on a multidisciplinary approach. Clinical guidelines recommend escalating oral analgesics for pain that doesn’t respond to first-line agents. Opiate use should follow the World Health Organization pain ladder of tramadol, codeine, hydrocodone, and morphine. Neuropathic pain can be treated with pregabalin or gabapentin, titrated as tolerated by patients. Chronic HS lesions can be treated with wide local scalpel, CO2, or electrosurgical excision, and recurrent nodules can be deroofed or excised. Superior hypogastric plexus block and/or ganglion impar block can be considered for refractory cases.
Conclusion: HS is an extremely painful condition severely affecting quality of life. Adequate pain management is vital, and a stepwise approach is recommended.
Dermatology Education for Medical Students: Assessing Participation Rates in Clinical Dermatology Electives
Authors: Agarwal Ashima , M. Falcone Lauryn , D. Cai Emily , J. James Alaina
Published: July 2024

Introduction: Skin conditions affect 1.9 billion people worldwide and are a common reason for patients to seek health care1. With the high prevalence of skin disease, it is vital that medical students should receive clinic-based education in recognizing and treating skin disorders. University of Pittsburgh School of Medicine (UPSoM) currently offers a 4-week clinical dermatology elective to third or fourth year medical students. However, in an increasingly crowded clinical curricula, the dermatology elective is not taken by many students.
Methods: We assessed the percentage of UPSoM students who completed the dermatology elective and analyzed the residency selection of these students between academic years 2012 to 2022. We also explored dermatology elective offerings of medical schools across the United Sates that have a dermatology residency program and investigated the number of schools offering a shortened elective through the American Medical Association’s FREIDA database.
Results: During academic years (AY) 2012 to 2022, 1579 students were enrolled at UPSOM. In this time period, 205(13.0%) students participated in the elective course. Of these 205 students, 31(15.1%) pursued dermatology residency, 105(51.2%) pursued primary care and 22(10.7%) students pursued surgical subspecialties. Of the 142 dermatology residency programs, only nineteen programs (17.0%) offer a shortened elective.
Discussion: Many medical students graduate medical school with little to no dermatology training, despite a high likelihood of encountering skin disease in their future careers. Offering a shortened clinical dermatology elective may allow for more students to participate in hands-on dermatology training.
Deucravacitinib in Plaque Psoriasis: 4-Year Safety and Efficacy Results From the Phase 3 POETYK PSO-1, PSO-2, and LTE Trials
Authors: Armstrong April W. , Lebwohl Mark , Warren Richard B. , Sofen Howard , Morita Akimchi , Imafuku Shinichi , Ohtsuki Mamitaro , Spelman Lynda , Passeron Thierry , Papp Kim A. , Colombo Matthew J. , Vaile John , Vritzali Eleni , Hoyt Kim , Daamen Carolin , Banerjee Subhashis , Strober Bruce , Thaçi Diamant , Blauvelt Andrew
Published: July 2024

Introduction: Deucravacitinib, an oral, selective, allosteric TYK2 inhibitor, is approved in the US, EU, and other countries for treatment of adults with moderate to severe plaque psoriasis who are candidates for systemic therapy. Deucravacitinib was superior to placebo and apremilast in the phase 3 POETYK PSO-1 and PSO-2 trials in moderate to severe plaque psoriasis. Upon trial completion, patients could enroll in the ongoing POETYK long-term extension (LTE) trial. Here, deucravacitinib safety and efficacy are reported through 4 years.
Methods: PSO-1/PSO-2 randomized patients 1:2:1 to placebo, deucravacitinib 6 mg QD, or apremilast 30 mg BID. At Week 52, patients in the LTE received open-label deucravacitinib 6 mg QD. Safety was evaluated in patients receiving ≥1 deucravacitinib dose. Exposure-adjusted incidence rate (EAIR) per 100 person-years (PY) was used to assess adverse events (AEs). Efficacy outcomes included PASI 75, PASI 90, and sPGA 0/1 and were analyzed using mNRI in LTE patients receiving continuous deucravacitinib from Day 1 of the parent trials.
Results: 1519 patients received ≥1 deucravacitinib dose; cumulative exposure was 4392.8 PY. EAIRs/100 PY were decreased/comparable from the 1- to 4-year cumulative period, respectively: AEs (229.2, 131.7), serious AEs (5.7, 5.0), deaths (0.2, 0.3), discontinuation due to AEs (4.4, 2.2), herpes zoster (0.8, 0.6), malignancies (1.0, 0.9), MACE (0.3, 0.3), and venous thromboembolism (0.2, 0.1). With continuous deucravacitinib treatment (n = 513), clinical response rates were maintained from Year 3 (PASI 75, 73.8% [95% CI, 69.6, 78.0]; PASI 90, 49.0% [95% CI, 44.4, 53.7]; sPGA 0/1, 55.2% [95% CI, 50.5, 59.9]) to Year 4 (PASI 75, 71.7% [95% CI, 67.0, 76.3]; PASI 90, 47.5% [95% CI, 42.6, 52.4]; sPGA 0/1, 57.2% [95% CI, 52.1, 62.2]) by mNRI.
Conclusion: Deucravacitinib demonstrated durable efficacy with continuous treatment and a safety profile through 4 years consistent with that at 3 years, without new or long-term safety signals.
Deucravacitinib in Plaque Psoriasis: Maintenance of Response Over 4 Years in the Phase 3 POETYK PSO-1, PSO-2, and LTE Trials
Authors: Strober Bruce , Imafuku Shinichi , Paul Carle , Gooderham Melinda , Spelman Lynda , Seo Seong Jun , Passeron Thierry , Hoyt Kim , Colombo Matthew J. , Banerjee Subhashis , Augustin Matthias , Stein Gold Linda , Alexis Andrew F. , Thaci Diamant , Lebwohl Mark , Issa Naiem T. , Cameron Michael C.
Published: July 2024

Introduction: Deucravacitinib, an oral, selective, allosteric TYK2 inhibitor, was superior to placebo and apremilast in two global, phase 3 trials (POETYK PSO-1 and PSO-2) in moderate to severe plaque psoriasis. At Week 52, patients could enter the POETYK long-term extension (LTE) trial and receive open-label deucravacitinib. Long-term efficacy was maintained through 3 total years of continuous treatment with no new safety signals in the ongoing LTE.
Methods: Efficacy was further evaluated through Week 208 (4 years; data cutoff, November 1, 2023) in patients from the pooled PSO-1/PSO-2 populations who received continuous deucravacitinib from Day 1, achieved ≥75% reduction from baseline in Psoriasis Area and Severity Index (PASI 75) at Week 16 (primary endpoint) or Week 24 (peak response), and entered the LTE. Maintenance of response assessments included PASI 75, PASI 90, and sPGA 0/1 (static Physician Global Assessment score of 0 [clear]/1 [almost clear]). Efficacy is reported using modified nonresponder imputation in patients who reached or discontinued before Week 208.
Results: Of 513 patients who received continuous deucravacitinib from Day 1 and entered the LTE, PASI 75 was achieved by 313 (61.0%) and 336 (65.5%) patients at Week 16 and Week 24. Among Week 16 PASI 75 responders, response rates were maintained well from Week 16 to Week 208 (PASI 75: 100%, 84.4%; PASI 90: 55.7%, 57.4%; sPGA 0/1: 82.8%, 65.4%). Among Week 24 PASI 75 responders, response rates were also maintained from Week 24 to Week 208 (PASI 75: 100%, 84.6%; PASI 90: 62.7%, 58.2%; sPGA 0/1: 82.5%, 66.0%).
Conclusion: Clinical efficacy was generally maintained with continuous deucravacitinib in the vast majority of Week 16 and Week 24 PASI 75 responders from the parent trials through 4 years, supporting the long-term effectiveness and treatment durability of once-daily oral deucravacitinib for moderate to severe plaque psoriasis.
Therapeutic Recommendations for the Treatment of Acne Vulgaris in the US
Authors: Del Rosso James Q. , Kircik Leon H. , Tanghetti Emil A. , Draelos Zoe D. , Armstrong April , Callender Valerie D. , Bhatia Neal , R Feldman Steven
Published: July 2024

Introduction: Acne vulgaris and related sequelae negatively impact quality of life and are associated with increased rates of anxiety and depression. However, treatment of acne can be difficult due to its long time course, chronicity, and low patient adherence. While national acne guidelines have been recently updated, there is a need for practical, easy-to-use guidance for healthcare practitioners who treat patients with acne.
Methods: A roundtable discussion with a panel of eight clinicians and dermatologists was held to provide recommendations for the diagnosis and treatment of acne, including appropriate pharmaceutical treatments based on clinical presentation and patient population, patient discussion points, and advice for clinicians regarding acne treatment.
Results: The consensus was that successful acne treatment is contingent upon meeting three core goals: 1) correct diagnosis; 2) proper treatment regimen; and 3) patient adherence and education.
1: Acne should be diagnosed using both quantitative and qualitative assessments, taking into consideration the patient’s lived experience with acne. Quantitative assessments include acne duration; lesion type and location; inflammation; acne-related sequelae; and family history of scarring. Qualitative assessments determine how bothersome acne and/or sequelae are to patients and how much they impact quality of life. Differential diagnoses should be performed to rule out acneiform lesions, genetic disorders, infections, and certain types of medications.
2: For most patients, a combination topical treatment containing benzoyl peroxide and a retinoid and/or an antibiotic is recommended to address the multiple acne pathological processes, though sequelae and patient characteristics should be considered (eg, post-inflammatory hyperpigmentation in patients with skin of color). Fixed-dose combinations are preferred to ensure proper skin coverage, simplify treatment complexity, and improve adherence.
3: For optimal outcomes, patients should be educated about their treatments and consequences of non-adherence; realistic treatment goals should be established to manage patient expectations. A patient handout on skin care best practices can be used to detail their overall skin care regimen, treatments, and subsequent visits.
Conclusions: This practical guidance aims to assist clinicians in the successful diagnosis and treatment of acne as well as patient management/education.
Fixed-Dose Clindamycin Phosphate 1.2%/Adapalene 0.15%/Benzoyl Peroxide 3.1% Gel for Moderate-to-Severe Acne: Comparison of 4 Clinical Trials
Authors: Kircik Leon , Draelos Zoe D. , Gold Michael , Sadick Neil , Bhatia Neal
Published: July 2024

Introduction: Combination therapies targeting multiple processes of acne pathogenesis are recommended for most acne patients. A three-pronged approach using an antibiotic, retinoid, and antibacterial may also increase treatment efficacy versus monotherapy or dual-combination products. Clindamycin phosphate 1.2%/adapalene 0.15%/benzoyl peroxide 3.1% (BPO) polymeric mesh gel (CAB) is the first fixed-dose, triple-combination topical approved by the FDA for the treatment of acne. The objective of this analysis was to compare treatment success and effect size of once-daily CAB with its three constituent dyad gels, branded adapalene 0.3%/BPO 2.5% gel, and vehicle across four clinical studies.
Methods: Two phase 2 (NCT03170388, NCT04892706) and two phase 3 (NCT04214652, NCT04214639) double-blind, randomized, 12-week studies enrolled participants with moderate-to-severe acne. In all studies, treatment success at week 12 (defined as a ≥2-grade reduction from baseline in Evaluator’s Global Severity Score and clear/almost clear skin) was a co-primary endpoint. Other co-primary endpoints (reduction from baseline in inflammatory and noninflammatory lesions) are not shown here. Treatment-emergent adverse events (TEAEs) and cutaneous safety/tolerability were also assessed. A post hoc analysis of number needed to treat (NNT)—the number of patients who need to be treated with an intervention for one additional patient to achieve success versus vehicle—was performed to provide an additional measure of treatment effect and to indirectly compare data across studies.
Results: Across studies, approximately half of CAB-treated participants achieved treatment success by week 12 (range: 49.6-52.5%) versus less than one-fourth with vehicle (range: 8.1%-24.9%; P<0.01, all) and less than one-third with component dyads or branded adapalene 0.3%/BPO 2.5% (range: 27.8%-32.9%; P≤0.001, all). Treatment success rates were significantly greater for all active treatments versus vehicle (P<0.01, all). NNT values for CAB (3-5) were lower (better) than for constituent dyads (5-6) or branded adapalene 0.3%/BPO 2.5% (7), further indicative of greater efficacy. TEAEs with CAB were mostly of mild-to-moderate severity. TEAE and discontinuation rates were similar or lower with CAB gel than with adapalene/BPO dyad gels. Mean cutaneous safety/tolerability scores with CAB gel were <1 (mild) at all timepoints.
Conclusions: CAB gel demonstrated significantly greater efficacy in the treatment of moderate-to-severe acne than dyad gels and branded adapalene 0.3%/BPO 2.5% gel, with approximately half of participants achieving clear/almost clear skin by 12 weeks with CAB. Due to acne pathogenesis, a triple-combination treatment may result in clinical success more often than two-ingredient combination products.
Funding: Ortho Dermatologics.
Management of dislodged crown using split cast metal post and core: A case report
Authors: Srivastava Vishal , Yadav Suvarna Rishika , Chopra Devendra , Gaur Abhishek , Misra Sumit Kumar , Yadav Pratibha
Published: July 2024

Across diverse cultures, the practice of restoring lost tooth structure has endured through generations. It is widely understood that merely undergoing quality endodontic therapy is not sufficient to fully restore a severely weakened tooth with pulpal disease. Equally crucial is ensuring post-endodontic restoration followed by quality prosthetic rehabilitation. In instances where a tooth is extensively damaged, utilizing a post becomes the preferred course of action post endodontic treatment to preserve the core. The gold standard for the treatment of a severely compromised tooth is recognized as a cast post and core. In this case study, a previously treated maxillary first molar, which had a dislodged fiber post and core along with a porcelain-fused-to-metal (PFM) crown, underwent retreatment with a split cast metal post and core followed by a PFM crown.
Low-Cost Early Detection Device for Breast Cancer based on Skin Surface Temperature
Authors: Arsyad Cahya Subrata  , Sirajuddin Muhammad Mar’ie , Salsabila Sona Regina , Ibad Irsyadul , Prasetyo Eko , Yusmianto Ferry
Published: July 2024

One of the deadly diseases that attacks many women is breast cancer. It was recorded that breast cancer cases in 2020 were 2.3 million, with deaths accounting for 29% of these cases. The BSE technique is an easy way of early identification of breast cancer that can be done independently. However, this technique often goes wrong when practiced, making it ineffective. An early breast cancer detection system is proposed to make it easier for women to carry out early identification independently. Detection is carried out based on the measured temperature of the breast surface. The temperature difference at each point is a reference for the potential for breast cancer. This system was built in a bra and tested with a mannequin as a simulator subject. The MLX90614 temperature sensor, as the primary sensor, succeeded in measuring the surface temperature of the dummy with 99% accuracy. Final testing of the proposed system can also differentiate the temperature differences in each zone.
GEOPHYSICAL INVESTIGATIONS OF ARCHAEOLOGICAL MOUNDS ON SOUTH URALS
Authors: Федорова Н.В. , Носкевич В.В.
Published: July 2024

Геофизические исследования проведены на нескольких курганах Неплюевского комплекса на Южном Урале. Комплекс состоит из 38 курганов, некоторые из них относятся к бронзовому веку. Выполнены магнитная и площадная георадарная съемка на самом крупном кургане, раскопки на котором начаты в 2016 году. На картах магнитных аномалий и георадарных слайсах выявлены аномалии, соответствующие каменным плитам, обрамляющим погребения, которые обнаружены при раскопках. Предложены рекомендации по георадарному обследованию погребальных комплексов.

Geophysical surveys were carried out on several mounds Neplyuevskogo complex in the southern Urals. The complex consists of 38 burial mounds, some of them belong to the Bronze Age. The magnetic and GPR survey was performed on the largest mound excavation which started in 2016 year. On the maps of magnetic anomalies and GPR of the slices, anomalies corresponding to stone slabs framing burials found during excavations have been revealed. Recommendations on GPR survey of funerary complexes are uggested.
A THREE-COMPONENT MAGNETOMETER-GRADIENTOMETER PEDESTRIAN (MGP-01)
Authors: Астраханцев Ю.Г. , Старовойтов В.П. , Белоглазова Н.А.
Published: July 2024

В статье представлен трехкомпонентный пешеходный магнитометр-градиентометр МГП-01, позволяющий измерять компоненты вектора постоянного магнитного поля и его градиенты. Возможность измерять три составляющих вектора градиента геомагнитного поля значительно повышает информативность метода градиентометрии. Описано устройство прибора, методика измерений и результаты первых полевых испытаний.

The article presents a three-component pedestrian magnetometer-gradientometer MGP-01, allowing to measure the components of constant Earth magnetic field vector and its gradients. The ability to measure three components of the gradient geomagnetic field vector significantly increases the information content of the gradientometry method. Such measurements greatly increase the informativeness of the method. There are description device, measurement technique and results the first field testing.
THE METHODOLOGY OF MONITORING THE IMPACT OF ANTHROPOGENIC PROCESSES ON THE GEOLOGICAL ENVIRONMENT
Authors: Белоглазова Н.А. , Баженова Е.А. , Вдовин А.Г. , Федосов М.А.
Published: July 2024

В статье приведены результаты опробования методики мониторинга параметров геоакустической эмиссии и электромагнитного излучения в пределах большого индустриального города. Было показано, что сравнение измерений, проведенных в скважине и на поверхности, дает возможность оценить степень влияния техногенных шумов индустриального города на геологическую среду.

The article presents the results of sampling methods for monitoring parameters of geoacoustic emission and electromagnetic radiation within a large industrial city. It was shown that the comparison of measurements taken in the borehole and on the surface, gives an opportunity to assess the degree of influence of anthropogenic noise industrial city on the geological environment.
A COMPREHENSIVE THERMAL ANALYSIS OF THE SAMPLES OF BRUCITE
Authors: Бахтерев В.В.
Published: July 2024

Методами электропроводности, дериватографии и рентгенофазового анализа исследованы образцы брусита из Кульдурского месторождения (Хабаровский край). Показана связь параметров процесса дегидратации брусита с электрическими параметрами. По температурным зависимостям активного электрического сопротивления при переменном напряжении и тангенса угла диэлектрических потерь впервые выявлена аномальная область в интервале температур 100–170 °C, связанная с фазовым переходом, что согласуется с данными С.В. Габелкова с соавторами (Габелков и др., 2011), которые впервые установили, что термообработка брусита в интервале температур 60–200 °C приводит к термическому разложению части брусита и образованию аморфного гидроксида магния с предполагаемой формулой MgO·(1-x)H2O. Температура этого перехода зависит от чистоты образца.

We investigated the electrical resistance, the tangent of dielectric loss angle, derivatography and x-ray diffraction analysis of samples of brucite (The Kuldurskoe field, Khabarovsk Krai). Shows the relationship of process parameters of dehydration of brucite with electric parameters. On curves of temperature dependence of active electrical resistance (with AC voltage) and tangent of dielectric loss angle first identified the anomalous region in the temperature range 100–170 °C. Anomalies associated with phase transition by heating brucite. S.V. Gabelkov with the authors (Gabelkov et al., 2011) for the first time found that heat treatment of brucite in the temperature range 60–200 °C causes decomposition of part of the brucite and the formation of amorphous magnesium hydroxide with the assumed formula MgO·(1 -x)H2O. The temperature of this transition depends on the purity of the sample.
TO THE QUESTION ABOUT USING A METHOD OF ALTERNATING CURRENT RESISTANCE
Authors: Шестаков А.Ф.
Published: July 2024

В статье обсуждаются особенности использования метода сопротивлений на переменном токе с гармонической зависимостью от времени. Получено выражение, определяющее напряженность переменного электрического поля для трехполюсной установки Шлюмберже, расположенной на однородном проводящем полупространстве. Для малого параметра поля выведены формулы, аппроксимирующие кажущееся сопротивление по данным измерения электрической составляющей для трехполюсной установки.

The article discusses the features of the use of a method of resistance to alternating current with harmonic time dependence. The resulting expression defining the tension of an alternating electric field for a three-pole installation Schlumberger, situated on a uniform conducting half-space. For small field parameter, formulas, approximating the apparent resistivity according to the measurement of the electric component for a three-pole installation are obtained.
THE SOURCE MODEL OF THE ELECTRICAL RESEARCH SIGNALS TAKEN FROM THE NOISE OF THE RAILWAY
Authors: Вишнев В.С.
Published: July 2024

Получены математические выражения для расчета нормального поля электроразведочных сигналов, выделяемых из импульсных помех от электрической железной дороги, для случая, когда возбуждение изучаемого массива горных пород установившееся, а рельсовый путь непрямолинейный, неравномерно заземленный и ветвящийся. Приведенные формулы могут быть использованы при осуществлении текущего контроля состояния геологической среды под близко расположенными к дороге промышленными объектами, включая и проблемные участки самого рельсового пути, электроразведочными методами.

Mathematical expressions for calculation of the normal field, extracted from impulse noise from the electric railway, useful signals, are obtained for the case when the excitation of the rock mass studied is steady, and the track is not rectilinear, unevenly grounded and branching are derived. These formulas can be used in the current monitoring of the state of the geological environment under closely located industrial objects, including the problem areas of the track itself by electrical exploration methods.
CHARACTERISTIC OF THE EARTH CRUST OF NORTHERN EDGE OF TIMAN-PECHOR PLATE ALONG GEOTRAVERSE AGAT-1
Authors: Дружинин В.С. , Начапкин Н.И. , Осипов В.Ю.
Published: July 2024

В статье рассмотрены результаты анализа сейсмических материалов плотностного 2D моделирования и тектонического районирования по геотраверсу Агат-1, который расположен в южной окраине переходной зоны, соответствующей Арктическому поясу. При этом учитывался плотностной разрез по геотраверсу Агат-2 по сухопутной части Тимано-Печорской плиты. 

In article the results of seismic materials analysis of density 2D modeling and tectonic zoning along geotraverse Agat-1, which is located in southern edge of transition zone corresponding to the Arctic belt, are considered. At same time, a section density on geotraverse Agat-2 along of Timan-Pechora plate land part was taken into account.
RESULTS OF GEOPHYSICAL STUDIES OF THE KONOPLYANKA-2 BRONZE CENTURY SETTLEMENT (SOUTH URAL)
Authors: Федорова Н.В. , Носкевич В.В. , Молчанов И.В.
Published: July 2024

В работе приведены результаты геофизических исследований неукрепленного поселения бронзового века Коноплянка-2 (Южный Урал). В современном рельефе поселение фиксируется десятью впадинами. В полевой сезон 2017 г. в окрестности поселения выполнены топографическая и магнитная съемки. Получены детальные данные о рельефе не только поселения, но и прилегающей территории на площади 55000 кв. метров. По результатам магнитной съемки удалось выявить границы построек и реконструировать план поселения. Жилищ оказалось значительно больше, чем фиксируется на поверхности жилищных впадин. Внутри построек обнаружены колодцы и хозяйственные ямы. 

The paper presents the results of geophysical studies of the unfortified settlement Konoplyanka2 of the Bronze Age (South Ural). In the modern relief, the settlement is fixed by 10 depressions, forming two groups. In the field season of 2017, topographic and magnetic surveys were performed in the vicinity of the settlement. Detailed data of the relief not only of the settlement, but also of the adjoining territory on an area of 55,000 square meters were obtained. The results of the magnetic surveys was possible to identify the boundaries of buildings and reconstruct the settlement plan. The number of dwellings turned out to be much larger than depressions are fixed on the surface. Inside the buildings, many wells and pits were discovered.
THE STUDY OF MAGNETIC SUSCEPTIBILITY OF ROCKS AND IZUMRUDNYJ SLUDIO IN THE MARIINSKY EMERALD-BERYLLIUM DEPOSIT (MIDDLE URALS)
Authors: Иванченко В.С. , Баженова Е.А. , Попов М.П. , Пелешко О.П.
Published: July 2024

Рассмотрены вопросы изучения магнитной восприимчивости основных пород и рудного комплекса (изумрудоносных слюдитов и кварц-плагиоклазовых жил с бериллом) на самом известном уральском изумрудно-бериллиевом месторождении – Мариинском. Сделана попытка создания новой экспресс-методики изучения магнитной восприимчивости пород непосредственно в подземном руднике. Измерения были проведены на типовых породах и рудах по обнажениям в очистных (слоевые орта, заходки) и геологоразведочных выработках (рудные штреки) на горизонтах +15, –30, –120 м. 

The questions of studying the magnetic susceptibility of the main rocks and ore complex (emerald mica and quartz-plagioclase veins with beryl) at the most famous Ural emerald-beryllium Deposit – Mariinsky are considered. An attempt is made to create a new Express method of studying the magnetic susceptibility of rocks directly in an underground mine. The measurements were performed on the model rocks and ores exploration production (ORT layer, zagadki) and exploration workings (ore drifts) on the horizon +15; –30; –120 m.
WIDEBAND INDUCTION MAGNETIC FIELD SENSOR FOR SHALLOW ALTERNATING CURRENT ELECTRICAL RESEARCH
Authors: Арзамасцев Е.В.
Published: July 2024

Статья посвящена вопросам конструирования широкополосных индукционных датчиков магнитного поля для электроразведки методами электромагнитного зондирования и профилирования. В статье уделено внимание причинам нестабильности параметров чувствительности датчика, источникам собственных шумов. Приведены зависимости его чувствительности и фазового сдвига выходного сигнала датчика от частоты измеряемого поля. 

The article is devoted to the issues of designing broadband induction magnetic field sensors for electrical prospecting by methods of electromagnetic sounding and profiling. The article pays attention to the reasons for the instability of the sensor sensitivity parameters, the sources of intrinsic noise. The dependences of its sensitivity and phase shift of the sensor output signal on the frequency of the measured field are given.
SEISMIC AND GRAVIMETRIC DATA OF EARTHQUAKES, HAPPENED IN THE CHELYABINSK REGION, 5 AND 29 SEPTEMBER 2018
Authors: Кусонский О.А. , Бебнев А.С.
Published: July 2024

На Урале в районе г. Катав-Ивановск Челябинской области в сентябре 2018 г. произошло два тектонических землетрясения. Первое зарегистрировано 5 сентября 2018 г. Оно проявилось в виде двух сейсмических толчков в 03 ч 58 мин и в 12 ч 27 мин по местному времени. Второе – 29 сентября 2018 г. в 15 ч 06 мин. Сейсмические станции ARU и ARTI (последняя действует с 9 сентября 2018 г.), находящиеся на наименьшем удалении от эпицентра и оснащенные современными сейсмической и гравиметрической станциями, зарегистрировали детальные сейсмограммы и гравиметрический сигнал, по которым можно судить об особенностях развития сейсмического процесса землетрясений во времени. По их данным магнитуда первого толчка составила ≈4,7(mb), второго ≈3,0(mb). Первое землетрясение сопровождалось 37 афтершоками. Последний афтершок произошел 26 сентября 2018 г. в 15 ч 14 мин. Магнитуда афтершоков составляла 1,6–2,7(md). После землетрясения по гравиметрическим данным отмечены возможные постсейсмические деформации на расстоянии около 200 км. Магнитуда второго землетрясения более 3,1(md). Оно сопровождалось форшоками и афтершоками. Эпицентры землетрясений расположены в Западно-Уральской внешней зоне на границе с Предуральским прогибом. Слабые сейсмические события в этой структуре регистрировались в 2004, 2006 гг. и ощутимое землетрясение – в 2015 г.

In the Urals near the town of Katav-Ivanovsk, Chelyabinsk region in September 2018, two tectonic earthquakes occurred. The first one was registered on September 5, 2018. It manifested itself in the form of two seismic shocks at 03 o'clock 58 min and at 12 o'clock 27 min by local time. The second – September 29, 2018 at 15 o'clock 06 min. ARU and ARTI seismic stations (the latter is valid from September 9, 2018), located at the smallest distance from the epicenter and equipped with modern seismic and gravimetric stations, recorded detailed seismograms and a gravimetric signal, which can be used to judge the features of seismic earthquake process development over time. According to their data, the magnitude of the first shock was ≈4.7 (mb), the second ≈3.0 (mb). The first earthquake was accompanied by 37 aftershocks. The last aftershock occurred on September 26, 2018 at 15 o'clock 14 min. The aftershock magnitude was 1.6–2.7 (md). The magnitude of the second earthquake is over 3.1 (md). It was accompanied by forshocks and aftershocks. The epicenters of earthquakes are located in the West-Ural outer zone on the border with the Cis-Ural trough. Weak seismic events in this area were recorded in 2004 and 2006.
COMPLEX SEISMIC INVESTIGATIONS BY UPPER PART OF GEOLOGICAL SECTION
Authors: Сенин Л.Н. , Сенина Т.Е. , Воскресенский М.Н. , Парыгин Г.И.
Published: July 2024

Настоящая статья предлагает познакомиться с некоторыми элементами геофизических проявлений в поле упругих колебаний, данные о которых получены в результате комплексных сейсмических исследований в зоне тектонического контакта гранитов Верх-исетского массива и габбро в районе лесного парка юго-западной части г. Екатеринбурга. Исследования включали в себя малоглубинную сейсморазведку методом преломленных волн (МПВ), пассивные наблюдения микросейсмических колебаний, построение 2D и 3D скоростных и глубинных разрезов, анализ спектральных характеристик регистрируемых сейсмических сигналов. Значительные морфоструктурные неоднородности, полученные на 2D и 3D разрезах участка исследований скорее всего указывают на наличие переходной зоны вблизи тектонического контакта, а рассчитанные значения индекса уязвимости по спектральным соотношениям HVSR характеризуют юго-восточную часть грунтов участка, как максимально восприимчивую к поперечным колебаниям.

This article acquaint with the some characters of geophysical demonstrations in the field by elastic variation. Information about this characters acquired as a result of complex seismic investigations in zone tectonic contact by granites and gabbro in south-west Yekaterinburg city. Investigations includes seismic exploring by method refracted wave, registration by microseismic vibration, calculation 2D and 3D sections of velocity, seismic signals spectrum analysis. The gray area close by tectonic contact be developed on the great heterogeneity morphology and structure on the 2D and 3D sections of velocity. And vulnerability index by spectral function HVSR determine south-west part by area of exploration who open to injury for transverse vibrations.
RESULTS OF GEOPHYSICAL STUDIES OF THE YANDYRKA-2 BRONZE CENTURY SETTLEMENT (SOUTH URAL)
Authors: Носкевич В.В. , Федорова Н.В. , Молчанов И.В.
Published: July 2024

В работе приведены результаты геофизических исследований древнего поселения Яндырка-2 (Южный Урал). В современном рельефе поселение фиксируется 10 впадинами. В полевой сезон 2018 г. в окрестности поселения выполнены топографическая и магнитная съемки. Получены детальные данные о рельефе жилищных впадин и карта магнитных аномалий на площади 64000 кв. метров. Структуры, выделенные на магнитной карте, не соответствуют контурам поверхностных впадин. Вероятно, что памятник является многослойным, и структуры, выявленные по данным магнитной и топографической съемок, соответствуют разным строительным горизонтам.

The paper presents the results of geophysical studies of the ancient settlement Yandyrka-2 (Southern Urals). In the modern relief the settlement is fi xed by 10 depressions. In the fi eld season of 2018, topographic and magnetic surveys were carried out in the vicinity of the settlement. Obtained detailed data on the relief of housing basins and a map of magnetic anomalies on an area of 64,000 square meters. The structures identifi ed on the magnetic map do not correspond to the contours of the surface depressions. It is likely that the monument is multi-layered, and the structures identifi ed according to magnetic and topographic surveys correspond to different building horizons.
ATMOSPHERIC AIR FLOW RATE CHANGES THROUGHT OF BASALT AND LIMESTONE UNDER CYCLIC UNIAXIAL COMPRESSION
Authors: Бирюлин С.В.
Published: July 2024

В данной работе приведены результаты измерения скорости натекания атмосферного воздуха через образцы андезитбазальтов и известняков при циклическом одноосном сжатии. Для пород андезитбазальтового состава установлено возвращение скорости натекания, после снижения нагрузки до фоновой, к ее начальному уровню. Такое поведение скорости натекания объясняется наличием в этих породах упругих деформаций. Для образцов известняков таких деформаций не отмечено. При достижении критических давлений происходит разрушение образцов.

This paper presents the results of studying the atmospheric air fl ow rate through andesitebasalt and limestone samples in cyclic uniaxial compression. For rocks of andesitebasalt composition, return of fl ow rate, after reducing the load to the background, to its initial level is established. This behavior of fl ow rate is explained by the presence of elastic deformations in these rocks. No such deformations were observed for limestone samples. When critical pressures are reached, the samples are destroyed.
GEOPHYSICAL STUDIES OF DYNAMIC STABILITY OF ROCK MASSES DURING QUARRY DEVELOPMENT
Authors: Вдовин А.Г. , Белоглазова Н.А.
Published: July 2024

Представлены результаты измерений комплекса геофизических полей в скважине и на поверхности во время технологических взрывов на территории действующего Качканарского карьера. Проведена качественная оценка отклика магнитного поля, сигналов электромагнитного излучения и геоакустической эмиссии на проведение взрывных работ. Сделан вывод о динамической устойчивости исследуемого массива горных пород.

The results of measurements of the complex of geophysical fields in the well and on the surface during technological explosions on the territory of the existing Kachkanar quarry are presented. A qualitative assessment of the response of the magnetic field, electromagnetic radiation signals and geoacoustic emission to blasting operations was carried out. The conclusion about the dynamic stability of the studied rock mass is made.
ON PHYSICAL UNITS AND QUANTITATIVE INTERPRETATION OF MEASUREMENT DATA OF IMPULSE NOISE FROM AN ELECTRIC RAILWAY
Authors: Вишнев В.С.
Published: July 2024

Рассмотрены единицы измерения физических величин метода электроразведки импульсными токами электрической железной дороги. Приведены математические выражения, пригодные для расчета теоретических и экспериментальных кривых кажущегося сопротивления. Показано, что данные измерения техногенных помех от электрической железной дороги можно интерпретировать как на качественном, так и на количественном уровне.

Units of physical quantities of the electric prospecting method of pulsed currents of the electric railway are considered. Mathematical expressions suitable for calculating theoretical and experimental curves of apparent resistance are given. It is shown that the measurement data of industrial interference from the electric railway can be interpreted both on a qualitative and a quantitative level.
GEOPHYSICAL RESEARCHES OF COPPER MINING AT THE BELOUSOVSKY MINING (SOUTHERN URALS)
Authors: Носкевич В.В.
Published: July 2024

В работе приведены результаты микромагнитной и георадиолокационной съемки на карьере №1 Белоусовского рудника. В результате геофизических исследований выявлено, что вдоль бортов древнего карьера №1 Белоусовского рудника наблюдаются локальные положительные магнитные аномалии. Эти аномалии связаны с грунтами, выкопанными из карьера. По данным георадарной съемки определен рельеф дна древнего карьера во время его эксплуатации в бронзовом веке и построена объемная модель рудника. На основании результатов исследования можно оценить количество выкопанных грунтов и количество добытой руды.

The paper presents the results of micromagnetic and georadar surveys at quarry No. 1 of the Belousovsky mine. As a result of geophysical studies, it was revealed that local positive magnetic anomalies are observed along the sides of the ancient quarry No. 1 of the Belousovsky mine. These anomalies are associated with soils excavated from the quarry. According to the GPR data, the bottom topography of the ancient quarry was determined during its operation in the Bronze Age, and a three-dimensional model of the mine was built. Based on the results of the study, it is possible to estimate the number of excavated soils and the amount of ore mined.
STUDY OF THE STRESS-DEFORMED STATE OF THE GEOLOGICAL ENVIRONMENT BY THE RESULTS OF COMPLEX BOREHOLE GEOPHYSICAL RESEARCH
Authors: Баженова Е.А. , Белоглазова Н.А.
Published: July 2024

В статье описан аппаратурно-программный комплекс для проведения скважинных измерений сигналов геоакустической эмиссии и электромагнитного излучения. Приведены результаты проведения мониторинга геодинамического состояния геологической среды в естественном залегании. Показано, что сравнение периодических измерений, проведенных по стволу скважины, дает возможность оценить степень геодинамической устойчивости горных пород различного состава. Приведены примеры и показана эффективность комплексирования с другими геофизическими методами.

The article describes a hardware and software complex for borehole measurements of geoacoustic emission signals and electromagnetic radiation. The results of monitoring the geodynamic state of the geological environment in natural bedding are presented. It is shown that comparison of periodic measurements carried out along the wellbore makes it possible to assess the degree of geodynamic stability of rocks of various compositions. Examples are given and the effi ciency of integration with other geophysical methods is shown.