Количество страниц: 8 с.
The article presents the results of a microprobe study of the composition of phlogopite macrocrystals with inclusions of chrome spinelides from An-195 kimberlite body of the West Ukukit eld, Yakut kimber liteprovince. The purposeofthis study was toestablis hthegenesi sofsuchphlogopites: whe ther they are representatives of deep mantle matter or their formation is directly related to the formation of kimberlites composing An-195. It was found that the inclusions of chrome spinelides are con ned only to chromic non-zonal phlogopites or to chromic sites of zonal macrocrystals (Cr O 0.75-1.55 wt. %, TiO 2.67-3.84 wt. %, Mg# 83-88). Based on a 2 3 2 comparative analysis of the studied phlogopites and chromespinelides with the composition of analogues from the parageneses of these minerals in various mantle xenoliths of ultrabasic rocks, eclogites and rocks of the MARID series, it was concluded that these phlogopites most likely represent a phenocrystal association of kimberlite minerals. They clearly di er from phlogopites of the MARID series rocks with equal Mg# and TiO in higher 2 Al O contents; from phlogopites of ultrabasic mantle rocks xenoliths - generally with lower magnesia content. Phlogopites from eclogites have a generally higher Cr O content. Inclusions of high-chromium spinelides in 233+phlogopite (Cr O 44-50 wt. %, TiO 3-5.5 wt. %, Fe < 0.35 f.e.) correspond in composition to spinelides from 232cataclysmic dunites and are products of their recrystallization under the in uence of high-temperature mantle uid. 3+Inclusions of less chromic spinelides (Cr O 30-44 wt. %, TiO 4-7.5 wt. %, Fe > 0.35 fe) probably crystallized 232simultaneously with phlogopite macrocrystals and were captured by them during long-term co-growth.
Бабушкина, С. А. Фенокристаллы флогопита с включениями хромшпинелидов из неалмазоносных кимберлитов (на примере АН-195 Западно-Укукитского поля) / С. А. Бабушкина ; Институт геологии алмаза и благородных металлов // Вестник Северо-Восточного федерального университета им. М. К. Аммосова. Серия: Науки о земле. - 2023. - N 4 (32). - C. 12-19. - DOI: 10.25587/2587-8751-2023-4-12-19
DOI: 10.25587/2587-8751-2023-4-12-19
Количество страниц: 4 с.
Левочкин, В. В. Феномен национального кино на опыте Республики Саха (Якутия) / В. В. Левочкин // Этносоциум и межнациональная культура. - 2015, N 12 (90). - С. 120-123.
Количество страниц: 6 с.
- Прикладные науки. Медицина. Ветеринария. Техника. Сельское хозяйство > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры),
- НАУКА ЯКУТИИ > ПРИКЛАДНЫЕ НАУКИ. МЕДИЦИНА. ТЕХНИКА. СЕЛЬСКОЕ ХОЗЯЙСТВО > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры).
For the effective enrichment of gold-containing concentrates and heavy concentrate with a high content of magnetic minerals, a beneficiation method in a jigging machine with a magnetic system has been proposed in the laboratory of the Laboratory mineral processing of the Institute of Mining of the North SB RAS. In the proposed method, a combination of gravitational enrichment and magnetic separation is carried out in a jigging machine. The most important factor in the process of effective extraction of gold from concentrate enrichment products containing iron scrap and minerals with high magnetic susceptibility in a jigging machine is the constant loosening of the forming natural bed. Subsequently, the method was improved and an electric pulse source was developed to create a pole-alternating magnetic field, which makes it possible to ensure a loosened state of the bed. A physical and mathematical model has been developed based on a Fokker - Planck type equation to determine the probability of particles passing through the thickness of a bed under the condition of the required state of loosening. Approbation of the model shows that the obtained calculations correlate with the results of experiments on a jigger with an electromagnetic installation under the conditions of the jiggering process: jigger cycle frequency 210 min-1, bed height 80 mm, amplitude 6 mm and pulse duration of the pole-alternating magnetic field from 0,1 sec. The work was carried out within the framework of the state assignment of the Ministry of Science and Higher Education of the Russian Federation (topic No. 0297-2021-0022, Unified state information system for recording the results of research and development work No. 122011800089-2) using the equipment of the Center for Collective Use of the Federal research center ҺYakut Scientific Center of the Siberian Branch of the Russian Academy of Sciencesһ (grant No. 13.TSKP.21.0016).
Слепцова, Е. С. Физико-математическая модель проницаемости тяжелых частиц через магнитную постель отсадочной машины с полюс опеременным магнитным полем / Слепцова Е. С., Яковлев Б. В., Матвеев А. И. ; Институт горного дела Севера им. Н. В. Черского // Успехи современного естествознания. - 2023. - N 12. - С. 218-223. - DOI: 10.17513/use.38195
DOI: 10.17513/use.38195
Количество страниц: 6 с.
The article analyzes the respiratory function indicators in two ethnically different groups (Yakuts and Russians) of the Republic Sakha (Yakutia) of the same age and sex. It shows that in the Yakuts, compared to Russians, some reserve respiratory system indicators are reduced. The results of a study of respiratory function in smokers show a significant respiratory obstruction caused by tobacco smoke. The degree of respiratory obstruction in smokers increases in direct proportion to the length of time they smoke. Against the background of smoking increases hypoxia, blood oxygenation and oxygen transport to tissues. In smokers, the rate of lipid peroxidation and the condition of antioxidant protection of the body depend on the length of time they smoke
Физиолого-биохимические аспекты табакокурения в условиях Якутии / Г. Е. Миронова, Л. Д. Олесова, Е. И.Семенова [и другие] // Якутский медицинский журнал. — 2020. — N 1 (69). — С. 58-62
DOI: 10.25789/YMJ.2020.69.14
Количество страниц: 6 с.
- Общественные науки. Образование > Экономика. Экономические науки. Политическая экономия > Труд. Наука о труде. Экономика труда. Организация труда,
- Прикладные науки. Медицина. Ветеринария. Техника. Сельское хозяйство > Медицина > Патология. Клиническая медицина > Оториноларингология,
- НАУКА ЯКУТИИ > ОБЩЕСТВЕННЫЕ НАУКИ > Экономика. Экономические науки. Политическая экономия,
- НАУКА ЯКУТИИ > ПРИКЛАДНЫЕ НАУКИ. МЕДИЦИНА. ТЕХНИКА. СЕЛЬСКОЕ ХОЗЯЙСТВО > Медицина > Патология. Клиническая медицина > Оториноларингология.
We have studied the impact of harmful physical factors of production on the development of occupational sensorineural hearing loss (OSHL) among civil aviation flight personnel and technological transport drivers in the mining industry of Yakutia. It was found that among flight personnel, OSHL is the only diagnosis of an occupational disease, the severity of hearing loss depends on age, length of service, and the level of excessive noise (typical pattern of OSHL). In car drivers, OSHL is combined with other diagnoses caused by exposure to local and/or general vibration, the clinical course is more severe, with a predominance of II and III degrees
Физические факторы риска при профессиональной нейросенсорной тугоухости / Ф. М. Терютин, В. Г. Пшенникова, Н. А. Барашков [и другие] // Якутский медицинский журнал. — 2020. — N 4 (72). — С. 65-69
DOI: 10.25789/YMJ.2020.72.17
Количество страниц: 8 с.
Физическое и половое развитие девочек в возрасте 11-13 лет, обучающихся в школе-лаборатории СВФУ "Сэргэлээх" г. Якутска / А. М. Аммосова, М. В. Маслова, А. И. Чикитова, М. А. Нохсорова, Н. В. Борисова, Д. В. Дагбаева // Вестник Северо-Восточного федерального университета им. М. К. Аммосова. Серия: Медицинские науки.— 2020. — N 3 (20). — С. 8-14.
DOI: 10.25587/SVFU.2020.20.3.011
Количество страниц: 8 с.
- Математика. Естественные науки > Геология. Геологические и геофизические науки,
- Прикладные науки. Медицина. Ветеринария. Техника. Сельское хозяйство > Инженерное дело. Техника в целом,
- НАУКА ЯКУТИИ > МАТЕМАТИКА. ЕСТЕСТВЕННЫЕ НАУКИ > Геология. Геологические и геофизические науки,
- НАУКА ЯКУТИИ > ПРИКЛАДНЫЕ НАУКИ. МЕДИЦИНА. ТЕХНИКА. СЕЛЬСКОЕ ХОЗЯЙСТВО > Инженерное дело. Техника в целом.
One of the problems in placer mining by the opencast method in the North is the determination of rock mass fracturing. Generally, fractures in loose sediments are filled with conglomerates and ice. The presence of ice complicates geological exploration by increasing amount of drilling and promotes formation of oversizes after blasting. At the present time, fractures can be detected by various geophysical methods, seismic exploration, acoustic logging and ground-penetrating radar. Seismics and acoustic logging are mostly used to study deep fractures, while ground-penetrating radar is applicable at shallow depths (to 30 m). Proper procedures and software to backup the ground-penetrating radar studies are unavailable by now. Aimed to develop criteria for detecting fractures in permafrost by ground-penetrating radar, physical modeling of GPR sounding in permafrost rock mass with ice-filed fracture is carried out. The modeling results are described. The sounding was implemented using ground-penetrating radar OKO-2 (Logis-Geotekh Group of Companies, Russia) with antenna assembly AB-1200 MHz...
Физическое моделирование распространения электромагнитной высокочастотной волны в массиве горных пород с трещиной заполненной льдом / Н. Д. Прудецкий, К. О. Соколов, Л. Л. Федорова. – Текст : непосредственный // Горный информационно-аналитический бюллетень. – 2018. – N 11. – C. 107-113.
Количество страниц: 5 с.
In this article the authors present results of the anthropometric examination of the 11 675 children up to 3 years, belonging to different ethnic groups living in the Republic of Sakha Yakutia. The Sakha – 7197, Russian – 3915, the North small in number people – 563. The height of these children is different but the Russian children have a higher height than the Sakha and a small in number people of North. The weight of the small in number people of North is higher than the Sakha and Russian on this period of life
Физическое развитие детей до 3 лет в Республике Саха (Якутия) / М. С. Саввина, В. Г. Часнык, Т. Е. Бурцева, Г. Г. Дранаева, В. П. Шадрин, Т. Е. Уварова, С. Л. Аврусин, Е. В Синельникова // Якутский медицинский журнал. – 2012. – N 3 (39). – С. 10-14.
Количество страниц: 2 с.
The article presents the results of mathematical analysis of height and weight of 58,188 children living in the Republic Sakha (Yakutia). Necessity of developing of regional standards of height, weight for children of Sakha and small in numbers people of the North is proved scientifi cally.
Физическое развитие детей Республики Саха (Якутия): возрастные и этнические особенности / Т. Е. Бурцева // Якутский медицинский журнал. – 2010. – N 2 (30). – С. 5-6.
Количество страниц: 4 с.
Purpose. Detection of contemporary tendencies in physical development of preschool age children living in rural area of the Republic of Sakha (Yakutia). Material and methods. We studied physical development of preschool age children from 7 settlements of Viluysky region, Viluysk city. 125 children from the rural area and 42 from the city, all of them aged 4-5 years underwent the study. The survey was conducted by a unified antropometric method (Bunak V.V., 1940). Results. Of all children living in the setllements of Viluysky region 30.0 % boys and 27.7 % girls had one or more deviations in physical development. The amount of yakut children with physical deviations differs depending on age. Conclusion. Tendencies in physical development of preschool age yakut children (aged 4-6 years) living in the rural area of Viluysky region have very negative character and on the whole accord to such other regions of Russia
Эверстова, А. В. Физическое развитие детей-якутов дошкольного возраста, проживающих в сельской местности Республики Саха (Якутия) / А. В. Эверстова, П. Г. Петрова, Г. А. Егорова // Якутский медицинский журнал. — 2006. — N 2 (14). — С. 20-23.