bluuebunny/crossref_metadata_2025 huggingface dataset:
ՄԵԾԱՆՈՒՆ ԵՐԿՐԱԲԱՆԸ
Authors: Խաչանով Ք․ , Գրիգորյան Մ․Ա․
Published: November 2024

Sergey V. Grigoryan, Academician of the National Academy of Sciences of the Republic of Armenia, Doctor of Geological and Mineral Sciences, Professor, the largest geologist-geochemist, turned 80 years old.
ՏՐԱԿՏՈԼԻՏ-ՀԱՐՑԲՈՒՐԳԻՏԱՅԻՆ ԱՊԱՐՆԵՐԻ ՆՇԱՆԱԿՈՒԹՅՈՒՆԸ ՊՈՐՏԼԱՆԴՑԵՄԵՆՏԻ ՖԻԶԻԿԱՄԵԽԱՆԻԿԱԿԱՆ ՀԱՏԿՈՒԹՅՈՒՆՆԵՐԻ ԲԱՐԵԼԱՎՄԱՆ ԳՈՐԾՈՒՄ
Authors: Խաչատրյան Շ․Վ․
Published: November 2024

A new type of portland cеment has been obtained by using troctoliteharzburgite rocks of northeastern part of Sevan Lake, the strength of which is nearly 20% higher than ordinary portland cement. The obtained binder will give possibility to save more than 20–30% cement clinker and simultaneously will increase the strength of the cement stone.
ПРОЯВЛЕНИЯ КАРСТА И ОБРАЗОВАНИЕ ПОДЗЕМНЫХ ПУСТОТ НА АРМЯНСКОМ НАГОРЬЕ
Authors: Бойнагрян В.Р.
Published: November 2024

Displays of karst in calcareous rocks and forming of underground emptinesses in effusive rocks of Armenian highlands have been examined in the article. Broad spreading limestone-dolomite rocks in the mountains of the Minor Caucasus, Armenian Eastern Taurus and Inside Taurus, their considerable dislocation and intensive partition of ranges by deep valleys assist in developing of karst in the highland. In effusive rocks the formation of underground emptinesses are only partially. A lot of emptinesses are formed in them as a result of cooling of lava flow and loss of gas.
ՍԵՐՎԻՍԻ ՏԵՍԼԱԿԱՆՆԵՐԸ ԵՎ ՍԵՐՎԻՍԱԳԻՏՈՒԹՅԱՆ ԱՆՀՐԱԺԵՇՏՈՒԹՅՈՒՆԸ
Authors: Սուվարյան Ս․Ռ․
Published: November 2024

In the article the following stereotypes related to category Service have been drawn up and discussed: service as a third sector of labour division, service as an indicator of globalization, service society, service state, service human. All of these represent service as a system of services and type of activities based on theoreticalmethodological diversity. The object of serviceology is the human’s non-material needs and the effectiveness of human material needs satisfaction. The aspect to study serviceology is the educational scientific system which creates service human, service state and formation of state. The science of service tries to systematize all spheres of social life and makes possibilities for scientific solutions of actual diverse problems based on theory and methodology of effectiveness of human needs satisfaction.
ՍՏՈՐԳԵՏՆՅԱ ՏԱՐԱԾՈԻԹՅՈՒՆՆԵՐԻ ԿԱԴԱՍՏՐԱՅԻՆ ՔԱՐՏԵԶԱԳՐՄԱՆ ԱՌԱՆՁՆԱՀԱՏԿՈՒԹՅՈՒՆՆԵՐԸ
Authors: Դավթյան Ս․Ռ․
Published: November 2024

The article proposes that cadastral mapping of underground spaces should be undertaken both manually and with instruments. It is preferable to use manual methods during cadastral registration work, while during the work for State Registration of Rights instruments should be used.
СЕЛЕВЫЕ ЯВЛЕНИЯ НА АРМЯНСКОМ НАГОРЬЕ
Authors: Бойнагрян В.Р.
Published: November 2024

Spreading of debris flow phenomena in the Armenian Highland in the whole and in particular the RA; natural conditions contributing to the formation of debris flows; their varieties; parameters of the largest debris flows in the territory of Armenia are discussed in the article. Special attention is drawn to the danger of forming of anthropogenic genesis debris flows in view of accumulating a large volume of building and garbage wastes in the river-beds and on the slopes of debris flow streams. Cleaning and deepening of river-beds of debris flow streams and creation of protective barriers using steel nets is proposed as preventive measures for localities protection.
ԱՌԱՏ ՏԵՂՈՒՄՆԵՐՈՎ ՕՐԵՐԻ ՏԱՐԵԿԱՆ ԹՎԻ ՏԱՐԱԾԱԿԱՆ ԲԱՇԽՄԱՆ ԵՎ ՓՈՓՈԽՈՒԹՅԱՆ ԴԻՆԱՄԻԿԱՅԻ ՕՐԻՆԱՉԱՓՈՒԹՅՈՒՆՆԵՐԸ ՇԻՐԱԿԻ ՄԱՐԶՈՒՄ
Authors: Մարգարյան Վ․Գ․
Published: November 2024

In the paper spatial distribution and dynamic change of number of days with precipitation 20 mm and more (shower) are clarified, analyzed and estimated. As a material have been used actual observations of precipitation at meteorological stations of Shirak. Have got close correlation link between height of area and number of days with precipitation 20 mm and more. The map of spatial distribution of annual number of days with precipitation 20 mm and more of studied area is made.
ՍՏՈՐԳԵՏՆՅԱ ՏԱՐԱԾՈՒԹՅՈՒՆՆԵՐԻ ՑՈՒՑԱԿԻ ԿԱԶՄՈՒՄԸ ՈՐՊԵՍ ՍՏՈՐԳԵՏՆՅԱ ՏԱՐԱԾՈՒԹՅՈՒՆՆԵՐԻ ԿԱԴԱՍՏՐԻ ՎԱՐՄԱՆ ՓՈՒԼ
Authors: Դավթյան Ս․Ռ․
Published: November 2024

The article provides a methodology for mapping of underground spaces. With regard to geographical and model diversity of underground spaces is proposed to include in the list of underground cavities that correspond to certain characteristics. This approach allows include in the list the most important spaces of underground objects, thereby improving the efficiency of cadastral works, especially records of such spaces, registration and restriction of property rights.
РЕЗУЛЬТАТЫ ГИДРОГЕОФИЗИЧЕСКИХ ИССЛЕДОВАНИЙ ПОДЗЕМНОГО СТОКА БАССЕЙНА Р. СЕЛАВМАСТАРА АРАГАЦСКОГО МАССИВА
Authors: Варданян В.П. , Минасян Р.С. , Мкртчян М.С.
Published: November 2024

For scientifically solution of the problem of groundwater development in volcanic regions of the Armenian highland we reinterpreted and summarized the long-term data of geophysical studies, including studies made within Aragats volcanic massif. Our drafted summary map of paleorelief of this territory allows one to draw conclusions about the link between modern and paleo-watersheds and on the distribution of groundwater flow in particular within the Selavmastara River basin.
АНТРОПОГЕННОЕ ВОЗДЕЙСТВИЕ НА РЕЛЬЕФ АРМЕНИИ И ВТОРИЧНЫЕ ТЕХНОГЕННЫЕ ПРОЦЕССЫ
Authors: Бойнагрян В.Р.
Published: November 2024

Alterations of the relief of the territory of Armenia in the process of economic activity of man and forming of secondary technogenic processes, directed to reconstruct the balance of former condition of the relief broken by man, are examined in the article. It is noted that anthropogenic influence on the relief acquires greater scale year by year. It is necessary to give competent forecast of expected secondary processes for professional planning of transformation of existing relief for preventing undesirable consequences.
ԳԵՏԵՐԻ ԷՔՍՏՐԵՄԱԼ ԵԼՔԵՐԻ ԴՐՍԵՎՈՐՄԱՆ ԱՌԱՆՁՆԱՀԱՏԿՈՒԹՅՈՒՆՆԵՐԸ ԿԼԻՄԱՅԻ ԳԼՈԲԱԼ ՓՈՓՈԽՈՒԹՅԱՆ ՀԱՄԱՏԵՔՍՏՈՒՄ
Authors: Վարդանյան Թ․Գ․
Published: November 2024

The article refers to the demonstration of the characteristics of extreme runoff of the rivers in the context of global climate change. The dynamics of changes of the rivers' extreme runoff and air temperatures have been studied, compared and assessed from 1960 till 2012 (case study is the relatively large rivers of Sevan Lake basin). In the studied river-basins are viewed air temperature increase and decrease of absolute maximum extreme runoff of the rivers. Therefore, it turns out that winter temperatures have contributed to a gradual melting of snow accumulated in the river basin causing reduction of absolute maximum runoff in spring. As a result, the risk of occurrence of floods have dramatically reduced.
«ԱՐՓԻ ԼԻՃ» ԱԶԳԱՅԻՆ ՊԱՐԿԻ ԲՈՒՍԱԾԱԾԿՈՒՅԹԻ ՌԵԿՐԵԱՑԻՈՆ ԳՆԱՀԱՏՄԱՆ ՓՈՐՁ
Authors: Մարտիրոսյան Լ․Մ․ , Մանուկյան Ա․Ա․ , Սուվարյան Է․Ռ․
Published: November 2024

In the article for the first time the peculiarity of recreational estimation of vegetation of «Lake Arpi» National Park is presented. Researches have been done in three fields, where abundance of medicinal herbs has been valued. In the article the methods, which are more effective for estimation of vegetation, are presented.
ՏԱՐԱԾՈՒԹՅԱՆ ՄԵՋ ԳՐՈՒՆՏԱՅԻՆ ՋՐԵՐԻ ՏԵՂԱԴՐՈՒՄԸ ԵՎ ՆՐԱՆՑ ԽՈՐՈՒԹՅԱՆ ՊԱՐԲԵՐԱԿԱՆ ՓՈՓՈԽՈՒԹՅԱՆ ԱԶԴԵՑՈՒԹՅՈՒՆԸ ՍՈՂԱՆՔԱՅԻՆ ԼԱՆՋԻ ԿԱՅՈՒՆՈՒԹՅԱՆ ՎՐԱ
Authors: Խաչատրյան Ռ․Գ․ , Գրիգորյան Մ․Ա․
Published: November 2024

A map of groundwater freatic surface for some landslide-prone regions of Armenia has been compiled in GIS. Archival materials were used, as well as fund materials of more than 10000 wells, geomorphological and hydrogeological data, data on the river network and watersheds. Having revealed some relationship between the depth of the groundwater and distribution of landslides the presented map allows to highlight a stable and risky terrains. Danger of landslides is high in the terrains with a shallow groundwater, and vice versa. At the same time, it is necessary to take into account the impact of periodic fluctuations of groundwater level on the landslide development. It is due to periodic changes in the stress state of the landslide mass. Given the above, sites with periodic fluctuation of groundwater level can be considered dangerous and unstable.
ECOLOGICAL TOURISM FEATURES AND PERSPECTIVES IN THE URAL AND IN THE PERM KRAI
Authors: Zyrianov A.I. , Korolev A.Yu. , Myshlyactceva S.E. , Safaryan A.A.
Published: November 2024

The article provides the current concepts of ecological, self-regulatory, active and sport tourism in Russia, highlights the present state of ecological tourism, and deals with its rational spatial organization in the Ural territory and Perm Krai.
ПРИМЕНЕНИЕ ГЕОФИЗИЧЕСКИХ МЕТОДОВ ПРИ ИССЛЕДОВАНИИ ТРАСС ГИДРОТЕХНИЧЕСКИХ ТОННЕЛЕЙ В ГОРНО-СКЛАДЧАТЫХ РАЙОНАХ
Authors: Манукян С.С.
Published: November 2024

In the article multiple examples of geophysical investigations in mountainfolded areas for hydrotechnical tunnel constructing are analyzed. Mountain-folded areas have difficult structure and for investigations is required a special complex of geophysical methods.
ՎԱՅՔ–ՍՅՈՒՆԻՔ ՏԱՐԱԾԱՇՐՋԱՆԻ ԵՐԿՐԱԿԵՂԵՎԻ ՆՍՏՎԱԾՔԱՅԻՆ ՇԵՐՏԻ ԿԱՌՈՒՑՎԱԾՔԱՅԻՆ ԱՌԱՆՁՆԱՀԱՏԿՈՒԹՅՈՒՆՆԵՐԻ ՈՒՍՈՒՄՆԱՍԻՐՈՒԹՅՈՒՆՆ ԻԶՈԼՈՆԳԵՐԻ ԵՂԱՆԱԿԻ ԿԻՐԱՌՄԱՄԲ
Authors: Սարգսյան Ռ․Ս․ , Հովհաննիսյան Հ․Հ․
Published: November 2024

In the article by the application of the method of isolong an attempt was made to research the main structural features of the Earth Crust sedimentary layer for Vayk-Syunik region. For this purpose the morphostructural models of the sedimentary layer for research area were composed, which characterize its different depth horizons, and comparative analysis were made with the structural heterogeneities of the crystalline fundament surface.
ОПОЛЗНИ АРМЯНСКОГО НАГОРЬЯ
Authors: Бойнагрян В.Р.
Published: November 2024

In the paper the types and causes of landslides of the Armenian highland is analysed. Their highest activity is observed in the provinces of Trabzon, Rize, Erzurum and Shirnak (all in Turkey); in the Adjaristskali river head and in the Bordjomi gorge of Kura River (Georgia); in the provinces Vayots Dzor, Ararat and Tavush (Armenia). The most of them are coincided with zones of active faults and hydrothermal changed rocks and the active use of mountain slopes increases the risks of their displacement.
ԲԱԶՄԱՄԱՍՇՏԱԲ ՀԻՄՔԻ ԿԻՐԱՌՈՒՄԸ ՀՈՂԱՅԻՆ ՊԱՇԱՐՆԵՐԻ ԿԱՌԱՎԱՐՄԱՆ ՈԼՈՐՏՈՒՄ
Authors: Էֆենդյան Պ․Ս․ , Խուդավերդյան Ն․Ա․
Published: November 2024

In this article the problem of providing to organs of executing control of land resources with complex data (including the appropriate maps and databases) about land resources has been studied. Today it is impossible to solve this problem without appropriate software, geoinformation system and multi-scale maps, which form basis for them. Each government proceeding from its territory and features determine succeeding scales of base maps. These maps, which are created in uniform coordinate and high-rise systems, are intended for solving different tasks arising before the country. In corresponding software package the usage of topographic and cadastral maps together with remote sensing will allow to derive multi-scale base map consisting of several large-scale theme groups and layers.
POPULATION MIGRATION AND SETTLEMENT STRUCTURAL MOVEMENTS IN THE REPUBLIC OF ARMENIA (2002–2015)
Authors: Manasyan H.M. , Avagyan A.R. , Manasyan M.G.
Published: November 2024

The migration and resettlement questions in RA are discussed in the article. The population migration ratio of different settlements and their changes during 2002 till 2015 are calculated also, as well as the structural and territorial movements due to migration in RA are discussed. One can find different suggestions, which concern the productive interaction between migration and resettlement.
О ЭПИГЕНЕТИЧЕСКОМ ХАРАКТЕРЕ ЛАЛВАРИТОВ АЛАВЕРДСКОГО РУДНОГО РАЙОНА
Authors: Мирзоян Г.Г.
Published: November 2024

The earlier described "ringing tufas", that were regarded as normal pyroclastic tufas, are explosive breccias of andesite composition, epigenetic with regard to the enclosing strata. The explosive breccias of the Ore Region of Alaverdi generate both embedded interlayer formations and shapless dyke-resembling bodies of the paleogenic age, but not as stratum unit in the column of Oxford.
ԶԲՈՍԱՇՐՋՈՒԹՅԱՆ ԶԱՐԳԱՑՄԱՆ ՀՆԱՐԱՎՈՐՈՒԹՅՈՒՆՆԵՐԸ ՀՀ ԼԵՌՆԱՅԻՆ ՏԱՐԱԾՔՆԵՐՈՒՄ
Authors: Գրիգորյան Վ․Վ․ , Սարգսյան Տ․Ա․ , Քելյան Ս․Ս․ , Հովհաննիսյան Ն․Ա․ , Փեթակչյան Մ․Հ.
Published: November 2024

Mountainous territories are potential tourism areas, which are conditioned by natural resources and conditions, human intervention and existing infrastructures. As a result of investigation in the Republic of Armenia it is suggested to developed eco- and agrotourism, cognitive, scientific, business, amateur and other forms of tourism, for which a serious and effective state approach is needed.
ՄԱՐԴՈՒ ԱՌՈՂՋՈՒԹՅԱՆ ՎՐԱ ԱԶԴՈՂ ԲԻՈԿԼԻՄԱՅԱԿԱՆ ԻՆԴԵՔՍՆԵՐԻ ԳՆԱՀԱՏՈՒՄԸ ԵՐԵՎԱՆ ՔԱՂԱՔՈՒՄ
Authors: Զաքարյան Ն․Բ․ , Վարդանյան Թ․Գ․ , Մելքոնյան Հ․Ա․
Published: November 2024

In this paper the bioclimatic indices (heat waves, heat index and humidity index) for 1966–1990 and 1991–2016 periods were developed and evaluated in accordance with the methodology of WMO for the Yerevan City. We have calculuded that in the last two decades the number and duration of heat waves have sharply increased. In the estimation of the heat index during the period 1991–2016, 20 cases with very hot days were observed, since in the early 1966–1990 period such days were not observed. Moreover, the assessment of the humidity index has shown that the accidents with dangerous days for 1991–2016 period has sharply increased from 60 cases to 334.
ՀՀ ՍԱՀՄԱՆԱՄԵՐՁ ԳՈՏՈՒՄ ԳՅՈՒՂԱԿԱՆ ԲՆԱԿԱՎԱՅՐԵՐԻ ՄԱՐԴԱՔԱՆԱԿԻ ՏԱՐԱԾԱՇՐՋԱՆԱՅԻՆ ԱՌԱՆՁՆԱՀԱՏԿՈՒԹՅՈՒՆՆԵՐԸ ԵՎ ԱՌԿԱ ՀԻՄՆԱԽՆԴԻՐՆԵՐԸ
Authors: Պոտոսյան Վ․Ա․
Published: November 2024

Population number reflects the cumulative impact of several factors on the development of rural areas and settlements. Besides, settlement transformation and development processes are essentially conditioned by population number of rural settlements and population distribution by population number. In the bordering belt of the RA the function of fortifying and strengthening the self-defense of the country joins the mentioned ones. The RA bordering belt rural settlements population number and rural population regional distribution by population number features analysis and current problems revelation have been done in the article.
ОПЫТ КАРТИРОВАНИЯ ЛИНЕАМЕНТОВ И КОЛЬЦЕВЫХ СТРУКТУР С ПОМОЩЬЮ ГИС
Authors: Наапетян С.А. , Мовсесян Р.С. , Гюрджян А.Л.
Published: November 2024

The article describes the experience of using the geographical information system (GIS) for recognizing lineaments and ring structures that are weakly developed on the surface. The selection of the latter is crucial for the reasonable selection of ore taxon of different orders – ore knots, fields and deposits, which contributes to the efficiency of geological exploration work. The results of the research allowed us to present the structural features of the studied territory in a new way.
ՋՐԱՅԻՆ ՌԵՍՈՒՐՍՆԵՐԻ ՕԳՏԱԳՈՐԾՄԱՆ ԱՐԴԻ ՎԻՃԱԿԸ, ԱՂՏՈՏՎԱԾՈՒԹՅՈՒՆԸ ԵՎ ՊԱՀՊԱՆՄԱՆ ԳԵՐԱԿԱ ԽՆԴԻՐՆԵՐԸ ԴԵԲԵԴԻ ԳԵՏԱՎԱԶԱՆԱՅԻՆ ՀԱՄԱԿԱՐԳՈՒՄ
Authors: Մարգարյան Վ․Գ․ , Վարդանյան Թ․Գ․
Published: November 2024

The current state of the Debed Rriver basin system has been analyzed and assessed, anthropogenic pressures on water resources have been discussed, the super objectives of the sphere have been analyzed and clarified mechanisms for effective use and protection of water resources have been proposed.
ՀՀ ՍԱՀՄԱՆԱՄԵՐՁ ՏԱՐԱԾՔՆԵՐՈՒՄ ԳՅՈՒՂԵՐԻ ՄԱՐԴԱՔԱՆԱԿԻ ԵՎ ԳՅՈՒՂԱԿԱՆ ՏԱՐԱԲՆԱԿԵՑՄԱՆ ՏԱՐԱԾՔԱՅԻՆ ԿԱՌՈՒՑՎԱԾՔԻ ՄԻ ՔԱՆԻ ՀԱՐՑԵՐ
Authors: Պոտոսյան Վ․Ա․
Published: November 2024

The correlation analysis between rural settlements population number and their absolute height, cultivable land area, spatial and time distances from the nearest service centre have been given in the article. The revelation of regional differences and features of rural settlement in frontier areas has been highlighted through the analysis of transport-geographical location of settlements.
ՀՐԱԲԽԱՅԻՆ ՇՐՋԱՆՆԵՐՈՒՄ ՎԻՃԱԿԱԳՐԱԿԱՆ ՄԵԹՈԴՆԵՐԻ ԿԻՐԱՌՈՒՄԸ ՍՏՈՐԵՐԿՐՅԱ ՋՐԱՀՈՍՔԵՐԻ ՀԵՏԱՄՏՄԱՆ ՆՊԱՏԱԿՈՎ
Authors: Մկրտչյան Մ․Ս․
Published: November 2024

To identify the directions of groundwater flows and the exact location of groundwater wells in the volcanic regions of the Republic of Armenia, on the example of territory of Aragats Massif, correlation links were found from geophysical field and well data. For this purpose, mathematical-statistical methods with non-uniform location (distribution) of field data of electrical probe points were used. The results contribute to the fixing the location of groundwater wells.
ԱՐԱՐԱՏՅԱՆ ԳՈԳԱՎՈՐՈՒԹՅԱՆ ՎԵՐԸՆԹԱՑ ՔԱՂՑՐԱՀԱՄ ՋՐԵՐԻ ԱՂԲՅՈՒՐՆԵՐԻ ԵԼՔԵՐԻ ՓՈՓՈԽՈՒԹՅԱՆ ԳՆԱՀԱՏՈՒՄԸ
Authors: Աչոյան Ժ․Ա․ , Հակոբյան Գ․Ա․ , Հակոբյան Ա․Ա․
Published: November 2024

Based on the actual baseline data analysis, we clarify the reasons for a sharp decline of discharge of freshwater springs’ discharge (around 7–8 times) within the Ararat Valley. The recorded discharge changes of the springs are mainly, due to the over-exploitation of the confined aquifers (especially the second confined aquifers). As a result, a sharp decline of the piezometric levels of aquifers occurred (up to 15 m and more), which directly affected the discharge of the springs, as they are in close hydraulic connection. In order to correct the existent unfavorable situation, legal, institutional and technical measures are necessary to undertake and implement.
ՇԻՐԱԿԻ, ԼՈՌՈՒ ԵՎ ՏԱՎՈՒՇԻ ՄԱՐԶԵՐԻ ԱՆՏԱՌՆԵՐԻ ԶԲՈՍԱՇՐՋԱՅԻՆ-ՌԵԿՐԵԱՑԻՈՆ ԳՆԱՀԱՏՈՒՄԸ
Authors: Մարտիրոսյան Լ․Մ․ , Սարգսյան Ռ․Ս․ , Գրիգորյան Ա․Ա․ , Հարությունյան Ք․Հ․
Published: November 2024

In this article the tourism resources of vegetation for the Shirak, Lori and Tavush Regions have been studied and evaluated. Three key areas were identified in which researches were carried out. As the main tourist resource for the region is the forest, the article presents an assessment of the forest for tourism activities. Based on the results of the work, a large-scale vegetation map of the study area was compiled.
РОЛЬ СЕЛЬСКИХ МЕСТНОСТЕЙ И РАССЕЛЕНИЯ В РАЗВИТИИ ГОРНЫХ СТРАН
Authors: Подосян А.А.
Published: November 2024

The Republic of Armenia (RA) is a typical mountainous country. Horizontal and vertical fragmentation of the area, severe climate conditions and other naturalgeographical phenomena narrow the inhabitation areal of RA. This factors directly and indirectly affect the development of rural areas. In the article, based on the analysis and generalization of factual and statistical data, the role of rural areas and settlement pattern in the development of mountainous and high mountainous areas is substantiated on the example of RA.
ՀԱՄԱՅՆՔՆԵՐԻ ԽՈՇՈՐԱՑՄԱՆ ԳՈՐԾԸՆԹԱՑԸ ԵՎ ՍԱՀՄԱՆԱՄԵՐՁ, ԼԵՌՆԱՅԻՆ ՈՒ ԲԱՐՁՐ ԼԵՌՆԱՅԻՆ ՏԱՐԱԾՔՆԵՐՈՒՄ ՏԱՐԱԲՆԱԿԵՑՄԱՆ ԶԱՐԳԱՑՄԱՆ ՀԻՄՆԱԽՆԴԻՐՆԵՐԸ
Authors: Պոտոսյան Վ․Ա․
Published: November 2024

Over the past two decades, the problem of improving the administrativeterritorial division of RA at the local level has been in the focus of attention of researchers. The article presents suggestions for reorganization of unified communities in the border mountainous and high-mountainous regions of RA, considering the features of the territorial structure settlement of these areas at the local level.
ՀՈՂԵՐԻ ԴԵԳՐԱԴԱՑԻԱՅԻ ՎՐԱ ԳՅՈՒՂԱՏՆՏԵՍԱԿԱՆ ԱՇԽԱՏԱՆՔՆԵՐԻ ԱԶԴԵՑՈՒԹՅԱՆ ՎԵՐԼՈՒԾՈՒԹՅՈՒՆՆ ՈՒ ԳՆԱՀԱՏՈՒՄԸ
Authors: Դավթյան Պ․Գ․ , Դավթյան Տ․Պ․ , Մանուկյան Ե․Ս․ , Վարդանյան Ա․Հ․
Published: November 2024

In the article influence of agricultural activities on land degradation with the help of Lori Marz example were assesed and analysed. It gives the opportunity to detect and manage negative anthropogenic interference, which will minimize land degradation in the region.
TECTONIC PROCESSES IN THE CENTERS OF EARTHQUAKE FORMATION
Authors: Hovhannisyan Samvel R. , Makaryan Anzhela H.
Published: November 2024

Before studying the tectonomagnetic effect, the magnetoelastic effect of rocks was studied under laboratory and field conditions. The results showed that reversible and irreversible changes are manifested in the remanent magnetization. Until now, the detected changes have manifested themselves in the tectonomagnetic field in the form of reversible changes. The absence of irreversible changes suggests that physical processes are not fully reflected in the tectonomagnetic field. In 2021, at the geomagnetic station irreversible changes were observed in the tectonomagnetic field, which was a consequence of the foci located 20 km from the "Saragyugh" Geomagnetic Station. The observed reversible and irreversible changes fully reflect the process of elastic and plastic deformations occurring in the sources of nearby earthquakes.
ОЦЕНКА ДЕГРАДАЦИИ ЗЕМЕЛЬ В АРАРАТСКОЙ ДОЛИНЕ С ИСПОЛЬЗОВАНИЕМ СПЕКТРАЛЬНЫХ ИНДЕКСОВ
Authors: Григорян Арсен Т. , Тертерян Сона К.
Published: November 2024

The global changes and increased anthropogenic impact affect the soil cover and lead to the beginning of the process of soil degradation. Soil degradation is considered to be one of the most important problems for many countries in the world due to its impact on agricultural production and the environment. If appropriate measures are not taken, degradation processes will continue. There are a number of methods for studying and rehabilitating degraded soils: however, remote sensing data allows detection (which is more efficient) and mapping of degraded soils. Satellite images provide spatial and homogeneous data on soil conditions and vegetation degradation. The following spectral indices were used to assess soil degradation in the Ararat Valley based on soil reflectivity: CI – color index, FI – shape index, NDVI – vegetation indices. The process of soil degradation in the Republic of Armenia is typical for Ararat Valley, which is considered to be the main agricultural region of the country. Remote sensing methods and GIS systems were used to assess the state of Ararat Valley soils.
LAND RESOURCES MANAGEMENT ISSUES IN THE REPUBLIC OF ARMENIA
Authors: Davtyan Petros G. , Davtyan Tigran P. , Vardanyan Armine H. , Hakobyan Anna S.
Published: November 2024

Soil degradation is a multifactorial process, so the data obtained as a result of their study are important in organization of land management. The paper studies and analyzes the forms, causes and consequences of soil degradation caused by land use. These analyses made it possible to identify existing shortcomings and issues land management. Valuable conclusions and recommendations have been made aimed at improving the efficiency in organization of land management, which, to a greater or lesser extent, will help mitigate soil degradation, which is very actual and urgent for our land-poor Republic.
ОСОБЕННОСТИ ОЦЕНКИ КАДАСТРОВОЙ И ПРИБЛИЖЕННОЙ К РЫНОЧНОЙ КАДАСТРОВОЙ СТОИМОСТИ НЕДВИЖИМОСТИ И ИХ ВЛИЯНИЕ НА ФОРМИРОВАНИЕ НАЛОГА НА ПРИМЕРЕ ЗДАНИЙ И СООРУЖЕНИЙ
Authors: Оганисян Ашхен А. , Петросян Нарек У.
Published: November 2024

Until 2021, real estate valuation was carried out on the basis of cadastral valuation of real estate. Since January 1, 2021, real estate valuation is carried out on the basis of an approximate cadastral value of the market. The changes applied to the law had a number of significant impacts on the real estate valuation system, which in turn affected the increase in the real estate tax. The above mentioned changes formed the basis of this study. In our work, we paid attention only to the assessment of buildings and structures and the change in the cadastral value close to the market. The following changes have taken place in the valuation system close to the market cadastral value of real estate: the basic costs of buildings, structures and land plots have changed, the number of estimated territorial zones as well as their coefficients have increased, the areas of estimated territorial zones have changed. The study was conducted on the example of Yerevan, where the average apartment in all zones was evaluated.As a result of comparing the cadastral value and the cadastral value of real estate close to the market, a map of changes in the estimated territorial zones was compiled, where changes in the administrative units of Yerevan were highlighted.
ВОЗМОЖНОСТИ РАЗВИТИЯ ТУРИСТСКИХ ДЕСТИНАЦИЙ В КОНТЕКСТЕ УСТОЙЧИВОГО ТУРИЗМА
Authors: Петакчян Марина Г.
Published: November 2024

The article explores the essence and modern significance of tourist destinations. The purpose of the work is to identify the prerequisites for the development of a tourist destination in the context of sustainable tourism. The sustainable management of the tourist destination was also considered as being responsible for the development of the destination itself.
THE USE OF MATRICES IN SERVICE MARKETING RESEARCH
Authors: Tashyan Mariam S. , Suvaryan Seyran R.
Published: November 2024

The purpose of this study is to analyze the applicability of various marketing methods and tools for building a marketing strategy for service companies. We have discussed four marketing matrices and explore their productiveness in service marketing researches. As a result, we find out that matrices are the most productive methods for service companies and they have many advantages. They provide an opportunity։ to develop a strategic complex of measures aimed at increasing business turnover; to use several strategies at the same time; to find a situation in the market in which the company will be protected and will be able to independently influence the competitive forces in their market; to predict the threat level of competitors for business activity; to the company owners to assess their company's capabilities against their main competitors; to facilitate the identification of competitive advantages and market opportunities so that companies can develop or create products, services and market strategies.
ОСОБЕННОСТИ ЛОКАЛИЗАЦИИ ПРОМЫШЛЕННОГО ОРУДЕНЕНИЯ В ПРЕДЕЛАХ ЛОРИЙСКОГО РЕГИОНА РЕСПУБЛИКИ АРМЕНИЯ
Authors: Мовсесян Рубен С. , Наапетян Самуель А. , Манукян Ваан М.
Published: November 2024

Identification of areas favorable for the localization of ore-bearing rocks is the pathway to reveal new ore fields and deposits. In most cases, not all ore-controlling structures are revealed, often many important elements are hidden, and therefore the structural position of ore taxa of different scales is interpreted incorrectly, which does not contribute to the discovery of similar realms and, accordingly, new ore accumulations. Recognition of weak lineaments and ring structures is of particular importance for elucidating the complete picture of the structural position of the deposit. The studies carried out made it possible to detect cryptostructures, to group ore fields according to their geological and structural locations. It is revealed the industrial deposits of the region are localized in three typical settings that are ring and arc-shaped structures, zones of large disturbances and outside of the ring structures, and zones of big faults and related to the faults of local scale (second–third order). The main part of deposits are related to the first geological and structural type. This type includes the large Teghut porphyry copper deposit as well, but the rest are of medium scale and belong to copper pyrite type (Shamlugh and Alaverdi), pyrite-polymetallic (Akhtala) and gold-polymetallic (Armanis) formation types. Each ring structure contains one industrial object. The only Martsiget ore field is related to the zone of the large Martsiget-Lalvar fault where three small allocations have been identified containing a small amount of gold and polymetallic ore reserves in all. Small chalcopyrite-type deposits of the Aghvi, Archut, and Mghart, in which the main value represent the gold reserves, are confined to local-scale faults. The identified pattern of localization of industrial ore accumulations made it possible to allocate new favorable ore formations, which are allocated in the southern part of the region and related to the ring structures located in the Pushkino-Acharkut fault zone. A predictive assessment of the expected ore accumulations is given. The use of the information obtained should have a positive impact on the effectiveness of geological explorations.
ANALYSIS OF DROUGHT CONDITIONS IN ARMENIA IN JUNE 2021 USING OBSERVATIONAL AND SATELLITE DATA
Authors: Azizyan Haykuhi H. , Panyan Hasmik S. , Gevorgyan Artur M. , Khalatyan Yelena S. , Gizhlaryan Sirarpi H. , Astsatryan Hrachya V. , Sahakyan Vlad  G. , Azizyan Levon V.
Published: November 2024

In June 2021, the RA experienced an unprecedented high temperature for 1961–1990 – 4.2℃ above normal (13.4℃). The recorded rainfall (71 mm) was significantly below normal (27%). The article presents maps of precipitation distribution in the territory of the Republic of Armenia in June, a comparison of satellite data and station data, as well as maps that show drought conditions.
АНАЛИЗ И АПРОБАЦИЯ МЕТОДОВ ПРОГНОЗА МАКСИМАЛЬНОГО СТОКА ГОРНЫХ РЕК
Authors: Батмазова Анна А. , Хаустов Виталий А.
Published: November 2024

The article discusses various methods for predicting the maximum flow of mountain rivers. Analysis and testing of techniques based on multivariate regression analysis and mathematical modeling were carried out, and a graphic-analytical approach was also used. For multivariate regression analysis, various predictors taken for the period of spring flood and for the previous winter period were considered. Some of the considered predictors were further selected as potential ones. The mathematical modeling method is based on modeling the processes of formation of snow reserves and water yield, as well as the formation of maximum flow. The graphic-analytical approach includes the construction of complex graphs that make it possible to visualize the patterns and trends of the characteristics under study. The basins of River Samur and River Andi Koysu were selected as objects for testing the approaches under study. Weather stations with a representative series of observations of meteorological characteristics were selected in the catchments of the listed rivers. The results of the study were mixed: the method of multivariate regression analysis made it possible to select predictors that give a satisfactory forecast only on dependent material; as a result of using a dynamic model of runoff formation, model parameters for flood months were obtained and optimized – testing for the feasibility of a separate forecast and the reliability of the methodology showed that both methods are more than 60% effective.
ПРОБЛЕМЫ ОПТИМИЗАЦИИ ГИДРОГРАФИЧЕСКОЙ СЕТИ И ГИДРОЛОГИЧЕСКОГО РАЙОНИРОВАНИЯ БЕЛАРУСИ
Authors: Лопух Петр С. , Волчек Александр А.
Published: November 2024

Approaches to the need to adjust the hydrological zoning of the territory of Belarus are analyzed. The methods and history of the development of hydrological zoning of the territory of the USSR and Belarus, the patterns of spatial distribution and runoff variability, and the scientific substantiation of runoff in different regions are considered. A variant of hydrological zoning based on basin, landscape and hydrological principles is proposed.
ПОПУЛЯРИЗАЦИЯ НАУЧНО-ИССЛЕДОВАТЕЛЬСКОГО ПОТЕНЦИАЛА У СТУДЕНТОВ-ГИДРОМЕТЕОРОЛОГОВ
Authors: Пронив Евгений Н. , Дрегваль Мария С. , Гайдукова Екатерина В.
Published: November 2024

The possibility of attracting hydrometeorology students through the Student Scientific Society into the research and educational activities of the Russian State Hydrometeorological University is being considered. The activities of the divisions of the student society are analyzed and their long-term plans for development are noted. Current challenges facing the student scientific society have been identified.
ДИСТАНЦИОННОЕ ЗОНДИРОВАНИЕ ТЕМПЕРАТУРЫ ПОВЕРХНОСТИ ВОДЫ ОЗЕРА СЕВАН С ПРИМЕНЕНИЕМ ДАННЫХ COPERNICUS GLOBAL LAND SERVICE
Authors: Овсепян Азатуи А. , Хлгатян Анаит Н. , Аветисян Рима А. , Мурадян Ваагн С. , Асмарян Шушаник Г.
Published: November 2024

Water surface temperature is an important factor influencing the ecological state of the lake. Remote sensing techniques are an important tool for obtaining lake surface water temperature, which provides periodic information from the entire surface of the lake. The aim of this study is to analyze the spatiotemporal change of Lake Sevan surface water temperature based on remote sensing data and to analyze the relationship between the surface temperature of the lake water and the air temperature of the lake basin. The results confirm the relationship between the water surface temperature of Lake Sevan and the air temperature in the lake basin. Under conditions of reliability p<0.01, the following correlation results were obtained: between average ten-day water surface temperatures and ten-day air temperatures with coefficient r=0.929, between average monthly water surface temperatures and monthly maximum air temperatures with coefficient r=0.918, between the monthly maximum water surface temperature and the monthly maximum air temperature with a coefficient of r=0.961. Analysis of remote sensing data shows both patterns and anomalous behavior of lake surface water temperature.
CHARACTERIZATION OF FOREST LANDSCAPES SPATIAL-TEMPORAL CHANGES BASED ON SOME INDICATORS
Authors: Sayadyan Hovik Ya. , Vardanyan Elmira A.
Published: November 2024

The article deals with the issues of anthropogenic spatial-temporal changes in the forest cover of Tavush Region. In particular the case of Ijevan Forest enterprise is presented, the negative consequences of deforestation were identified and studied through the following indicators: changes in the forest area and species composition of the forest, fragmentation of the forest massives and changes in the forest boundary-lines, dynamics of landslides and mud-flows.
RESSONÂNCIA MAGNÉTICA NA AVALIAÇÃO DE TUMORES ÓSSEOS PRIMÁRIOS: IMPLICAÇÕES NO TRATAMENTO ORTOPÉDICO
Authors: Pereira Marcela Carniel Fernandes , Melo Beatriz Luiza , Souza Bruna Moraes De , Crippa Mariah Chagas , Portolez Guilherme Benites , Pires Vinicius Borges , Almeida Cassiano Coelho de , Araújo Kleber Fernandes
Published: November 2024

Introdução: Os tumores ósseos primários, como osteossarcoma, condrossarcoma e sarcoma de Ewing, representam desafios significativos no diagnóstico e manejo clínico. A ressonância magnética (RM) destaca-se como uma ferramenta indispensável, graças à sua alta resolução e capacidade de diferenciar tecidos moles e ósseos. Este estudo investiga o papel da RM na avaliação de tumores ósseos primários, com foco em suas implicações no tratamento ortopédico. Métodos: Realizou-se uma revisão sistemática na base de dados PubMed, utilizando descritores como “Primary bone tumors” e “Magnetic resonance imaging”. Foram incluídos estudos publicados nos últimos 20 anos que analisaram o uso da RM no diagnóstico e manejo de tumores ósseos primários. Dados sobre características tumorais, planejamento cirúrgico e desfechos clínicos foram extraídos e analisados qualitativa e quantitativamente. Resultados: A RM apresentou sensibilidade de 94% na detecção de margens tumorais e impactou o planejamento cirúrgico em 85% dos casos analisados. Tumores avaliados por RM mostraram taxas superiores de sobrevida livre de doença em cinco anos (75%) em comparação com outros métodos (60%). Casos raros, como adamantinoma e osteossarcoma telangiectásico, demonstraram o papel crítico da RM na identificação precoce de características específicas e no planejamento de intervenções personalizadas. Conclusão: A RM é fundamental no diagnóstico e manejo de tumores ósseos, oferecendo benefícios significativos no planejamento cirúrgico e no prognóstico. Apesar de limitações como acesso restrito e necessidade de expertise, sua integração com novas tecnologias, como inteligência artificial, promete ampliar seu impacto na prática ortopédica.
MANEJO CIRÚRGICO DAS FÍSTULAS TRAQUEOESOFÁGICAS: ESTRATÉGIAS OPERATÓRIAS E DESAFIOS COLABORATIVOS ENTRE CIRURGIA GERAL E OTORRINOLARINGOLOGIA
Authors: Moura Gabriel Borges , Spirlandeli Gabriella Vieira , Arco Clara Boulos Del , Tsurumaki Jéssica Naomi , Porto Matheus de Matos , Ala Caroline Borges , Luzzani Bruna Isabel
Published: November 2024

Introdução: A fístula traqueoesofágica (FTE) é uma conexão patológica entre a traqueia e o esôfago, frequentemente associada a malignidades, como o câncer de esôfago. Embora rara, a FTE causa significativa morbidade e mortalidade, exigindo manejo clínico e cirúrgico cuidadoso. Em adultos, as principais causas incluem malignidade e complicações iatrogênicas, enquanto nos casos congênitos, frequentemente se associa à atresia esofágica ou outras anomalias. Métodos: Este estudo de revisão narrativa analisou evidências sobre o manejo cirúrgico da FTE, enfocando estratégias operatórias e desafios multidisciplinares. Foram consultadas bases como ScienceDirect e UpToDate (2000-2024) utilizando termos específicos relacionados à cirurgia traqueal, complicações anestésicas e técnicas minimamente invasivas. Artigos em inglês, português e espanhol com abordagens cirúrgicas e colaborativas foram incluídos, excluindo estudos limitados a pediatria ou tratamentos não cirúrgicos. Resultados: Os desafios no manejo cirúrgico incluem complicações anestésicas devido à anatomia anormal, uso de stents personalizados e a necessidade de planejamento detalhado com equipes multidisciplinares. A traqueostomia, frequentemente associada ao manejo da FTE, pode gerar complicações como infecção, pneumotórax e formação de novas fístulas. O sucesso do tratamento depende de estratégias colaborativas entre cirurgiões, anestesiologistas e intensivistas para mitigar complicações e otimizar resultados. Conclusão: O tratamento da FTE requer cooperação interdisciplinar e planejamento meticuloso. Embora progressos tenham sido feitos, estudos futuros são necessários para preencher lacunas na prática e melhorar a qualidade de vida dos pacientes. A abordagem humana e colaborativa é essencial para o sucesso do manejo.
Inteligencia artificial: transformando la elaboración y publicación de artículos científicos
Authors: Pizarro Jorge Emanuel
Published: November 2024

La inteligencia artificial (IA) tiene el potencial de revolucionar la investigación y la producción de artículos científicos. Se han desarrollado herramientas de IA que pueden impactar en la elaboración de manuscritos, desde la búsqueda de literatura científica, hasta la redacción del artículo. Para comprender cómo funcionan y adoptar una mirada crítica, es necesario conocer algunos conceptos básicos sobre IA. Además, es importante analizar las fortalezas y limitaciones del uso de estas tecnologías y discutir aspectos éticos y regulatorios. Sin dudas, la IA repercutirá también en el proceso de la revisión por pares y será necesario adaptar las normas editoriales de las revistas científicas a los avances tecnológicos.
XXV Congreso Argentino de Dermatología
Authors: Itatí Cordo María Victoria
Published: November 2024

El XXV Congreso Argentino de Dermatología se celebró en la ciudad de La Plata, del 28 al 31 de agosto.
En esta oportunidad la sede fue el “Centro Provincial de las Artes Teatro Argentino”, complejo artístico de estilo arquitectónico “brutalista” que posee una de las salas líricas más destacadas de Latinoamérica y que nos permitió un desarrollo singular, ofreciendo a nuestros asistentes una agenda cultural muy atractiva.
La reunión más importante de la dermatología argentina convocó a más de 1900 dermatólogos de todo el país y Latinoamérica quienes compartieron experiencias y conocimientos en un ambiente diferente.
Contamos con una amplia exposición comercial, con más de 38 stands, exhibida en los amplios foyeres de las principales salas del teatro.
El programa científico tuvo un elevado nivel académico, con plenarias, sesiones interactivas, cursos, simposios, focus y talleres impartidos en simultáneo, tanto en las salas del teatro como en los auditorios del Colegio de Médicos y del hotel Grand Brizo y, gracias a la colaboración del Municipio, pudimos convertir en peatonal la calle 51 y de esta manera acceder a las tres sedes de manera rápida y segura.
Como invitados extranjeros recibimos a Jean Bolognia (Estados Unidos), Marcello Menta Nico (Brasil), Raúl de Lucas (España), Martín Sangueza (Bolivia), Cristián Vera (Chile) y Eduardo Poletti (México). Todos participaron activamente del Congreso y también disfrutaron de nuestra ciudad, con su gastronomía y agenda cultural.
Todo el Comité organizador platense agradece a la SAD esta gran oportunidad y desea que el XXV Congreso Argentino de Dermatología perdure en la memoria de todos los asistentes como un encuentro de calidez humana que logró la fusión del arte y la ciencia en un lugar de magnitudes diferentes.
Factores asociados al desarrollo de discapacidad por lepra en la provincia del Chaco 2009-2019
Authors: Da Luz Emanuel , Anriquez Gonzalo , Zini Lía Valeria , Melo Vanesa Lisa , Escobar Solari Viviana Lorena , Fiad María Estela , Paniagua Baltazar Ángel , Genero Sebastián , Giménez Manuel Fernando
Published: November 2024

Introducción: la lepra es una patología infectocontagiosa crónica producida en la mayoría de los casos por el bacilo Mycobacterium leprae y en menor porcentaje por el Mycobacterium lepromatosis. Ambos comprometen principalmente la piel, los nervios periféricos y en ocasiones los órganos internos. En 2019 se comunicaron a nivel mundial 10.813 casos de lepra con discapacidad grado 2, la proporción de discapacidad fue del 5,3% de los casos nuevos. A pesar de que la tasa de prevalencia en Argentina y el Chaco es menor al 1 por 100.000 habitantes, es preocupante la discapacidad presente en los nuevos casos detectados, que se estima entre el 10% y el 40%.
Objetivos: describir la discapacidad por lepra y sus factores asociados en la provincia del Chaco entre 2009 y 2019 para identificar los grupos de riesgo e implementar políticas sanitarias más adecuadas.
Materiales y métodos: estudio de cohorte retrospectivo, transversal y correlacional. Se realizó un relevamiento de los pacientes notificados en la provincia del Chaco (Argentina) en el transcurso de 11 años (2009-2019). Las técnicas estadísticas que se utilizaron fueron descriptivas y de verificación de diferencias (media, mediana, rango, porcentaje, prueba t de Student y chi-cuadrado).
Resultados: en total se incluyeron 377 pacientes con lepra en la provincia del Chaco que ingresaron al programa provincial de 2009 a 2019, de los cuales 175 (46,4%) tenían discapacidad y 202 (53,6%) no. De los 175 pacientes con discapacidad, los factores de riesgo con significado estadístico fueron el sexo masculino (65,14% pacientes; p=0,006), y de las manifestaciones clínicas se hallaron formas multibacilares (95,43% pacientes; p=0,0001), lepra borderline (41,95%; p=0,001) y lepra lepromatosa (51,72%; p=0,001). Los pacientes con episodios reaccionales y discapacidad fueron 46,24%, con una diferencia estadísticamente significativa (p=0,0002).
Conclusiones: los factores que tuvieron significado estadístico de riesgo fueron el sexo masculino, las formas clínicas cargadas de bacilos (lepromatosa, multibacilar, borderline) y la presencia de episodios reaccionales. La información obtenida es muy importante para tomar medidas más eficientes en la problemática y también para futuras investigaciones en factores asociados a la discapacidad en casos de lepra.
Poroqueratosis eruptiva diseminada
Authors: Godoy María Belén , Liatto de Nogalo Adriana Beatriz , Nogalo Tatiana Giselle , Molina Silvia Graciela , Audi Viviana
Published: November 2024

Las poroqueratosis son un grupo heterogéneo e infrecuente de dermatosis adquiridas o heredadas de etiología desconocida resultantes de un trastorno de la queratinización secundario a una expansión clonal anormal de queratinocitos. La poroqueratosis disemina eruptiva (PDE) es una variante atípica con inicio abrupto con más de 100 lesiones que involucran a múltiples regiones. Se subdivide en paraneoplásica, inflamatoria, idiopática y asociada a inmunosupresión. Se presenta el caso de una mujer de 28 años que consultó por placas anulares eritematosas pruriginosas con centro atrófico y borde hiperqueratósico de distribución generalizada, con dermatoscopia e histopatología compatibles y respuesta parcial al tratamiento tópico.
Pústulas en región cervical en un adolescente
Authors: Zone Julieta , Stefano Paola Cecilia , Centeno María del Valle , Cervini Andrea Bettina
Published: November 2024

Varón de 12 años consultó por una lesión localizada en la región occipital del cuero cabelludo que se extendía hacia la región cervical posterior y región escapular derecha, de un mes de evolución. Al examen dermatológico se observaba una placa eritematosa con múltiples pústulas en su superficie. A nivel occipital derecho se evidenciaba una tumoración fluctuante y dolorosa, con secreción purulenta sobre la misma placa descripta. La maniobra de pilotracción era negativa. Hasta ese momento el paciente había recibido múltiples tratamientos con corticoides, antibióticos y antimicóticos tópicos y antibióticos por vía oral, sin respuesta.
Se solicitó un examen micológico directo y cultivo de la lesión, siendo el directo negativo, por lo que se realizó una biopsia de piel de la tumoración de la región occipital que se envió a Anatomía Patológica y a cultivo para gérmenes comunes, micobacterias y hongos. El resultado histopatológico informó marcado compromiso y destrucción del folículo piloso , además evidenció en dermis papilar moderado edema, denso infiltrado inflamatorio constituido por linfocitos, plasmocitos y numerosos polimorfonucleares neutrófilos y eosinófilos en dermis papilar y reticular conformando focos de supuración. No se observaron microorganismos específicos con la técnica de PAS.
Dermatosis ampollar en un adulto mayor
Authors: Piraccini Lucila , Candiz María Emilia , Forero Olga , Rodríguez Ludmila
Published: November 2024

Varón de 72 años, con antecedentes de hipertensión arterial, enolismo severo, tabaquismo, consumo intermitente de ibuprofeno y deterioro cognitivo crónico, consultó por dermatosis ampollar generalizada de 45 días de evolución.
Al examen físico, en la cavidad oral, y a nivel del paladar duro, se evidenciaban erosiones dolorosas de fondo rojizo, y en la cara, el tronco y las extremidades, ampollas tensas, algunas de contenido seroso y otras hemático que en su mayoría asentaban sobre piel sana. Dichas lesiones alternaban con erosiones y extensas áreas de piel denudada, en sectores rodeadas por collarete epidérmico. Cabe destacar el importante compromiso acral que presentaba. El signo de Nikolsky era positivo.
Se realizaron los siguientes exámenes complementarios: 1) laboratorio: albúmina 2,6, proteínas totales 5,3, resto sin particularidades; 2) marcadores tumorales: alfafetoproteína, antígeno carcinoembrionario, PSA total y B2 microglobulina negativos; 3) histopatología de piel: ampolla dermoepidérmica con infiltrado inflamatorio a predominio neutrofílico; 4) inmunofluorescencia directa (IFD): depósito lineal de IgA y C3 en zona de la unión dermoepidérmica; 5) IFI en vejiga de rata: negativa.
No hubo Glostora ni Tricofero que no probara
Authors: Malah Verónica Andrea , Carbia Sergio
Published: November 2024

Hasta entonces su gran batalla librada a brazo partido y perdida sin gloria, había sido la de la calvicie. Desde que vio los primeros cabellos que se quedaban enredados en la peinilla, se dio cuenta que estaba condenado a un infierno cuyo suplicio es inimaginable para quienes no lo padecen. Resistió durante años. No hubo Glostora ni Tricofero que no probara, ni creencia que no creyera, ni sacrificio que no soportara para defender de la devastación voraz cada pulgada de su cabeza. Se aprendió de memoria las instrucciones del “Almanaque Bristol” para la agricultura, porque le oyó decir a alguien que el crecimiento del cabello tenía una relación directa con los ciclos de las cosechas. Abandonó a su peluquero de toda la vida, que era calvo de solemnidad, y lo cambió por un foráneo recién llegado que solo cortaba el cabello cuando la luna entraba en cuarto creciente.