The Giraldes' organ – a rudiment or a functional structure of the funiculotesticular complex in man

Catedra Anatomia Omului USMF „Nicolae Testemiţanu”The Giraldes' organ represents a stable formation, consisting of convoluted system of canalicles that possesses a well developed glomerular vascular system, which forms anastomoses with the vessels of other components of the funiculotesticular complex. It was not found in laboratory animals and can be considered as a new phylogenetic organ, whose functional peculiarities are not known yet. Organul Giraldes reprezintă o formaţiune stabilă, constituită dintr-un sistem de canalicule contorte şi vezicule ce posedă un sistem vascular glomerular bine dezvoltat, care formează anastomoze cu vasele celorlalte componente ale complexului funiculotesticular (CFT). El nu se depistează la animalele de laborator şi poate fi considerat ca organ filogenetic nou, particularităţile funcţionale ale căruia sunt încă neclare

The mesoscopical aspects of the neurovascular intersections of the funiculotesticular complex

Catedra Anatomia Omului, USMF „Nicolae Testemiţanu”The mesoscopical intersections depicted on the anatomical samples demonstrated that the neurovascular intersections within the FTC structure are realized by means of processes of the neurons of the ampulovesical neurovascular plexus and by means of the processes of the spermatic cord's neurons. The nerves of the blood vessels represent a component of the polyvalent nervous network, which regulates the functional correlations between the microcirculatory bed and testicular activity. Investigaţiile mezoscopice pe piesele anatomice integrale ne-au demonstrat că intersecţiile neurovasculare din structura complexului funiculotesticular (CFT) sunt realizate prin prelungirile neuronilor plexului neuroganglionar ampulovezical şi cei ai neuronilor cordonului spermatic. Nervii vaselor sangvine prezintă o componentă a reţelei nervoase polivalente ce reglementează corelaţiile funcţionale dintre patul microcirculator şi activitatea testiculului

Dispositional Gratitude as a Mediator in the Influence of Life Goals on Psychological Well-Being

Background. Solving practical problems to support the psychological well-being of youth determines the relevance of the research of its psychological factors. Objective. The aim is to test the assumption that dispositional gratitude mediates the influence of internal and external life aspirations (goals) on well-being on a sample of Russian high school students. Sample. 5,635 high school students (grades 10–11) from 422 schools in Yakutia aged 16 to 18 years (M = 16.81, SD = 0.68), 41% of them boys. Methods. An empirical study was conducted with the use of psychological questionnaires: Gratitude Scale by M. McCullough, R. Emmons and J. Tsang, the non-verbal scale Attitude to Study and Life, the Myself scale from MSLSS by E.S. Huebner, and the short version of Aspirations Index by T. Kasser and R. Ryan. Correlations, regression analysis, and structural equation modeling were used for data analysis. Results. It is shown that psychological well-being of high school students is directly related to gratitude, as well as intrinsic and extrinsic life aspirations. In turn, gratitude, associated with both intrinsic and extrinsic goals, mediates relations between well-being and life aspirations. The indirect effect of intrinsic goals on well-being is positive, while such effect of the extrinsic ones is negative. Conclusion. The results of the study indicate the important role of gratitude as a mediator of the relations between life aspirations and psychological well-being in adolescence. The findings can be used to plan interventions to improve well-being of youth through the development of dispositional gratitude and increased focus on internal goals

Classic and modern aspects in evaluation of the heart innervation

Catedra Anatomia Omului USMF „Nicolae Testemiţanu”The organ and tissue transplantation is widely used in contemporary surgery. Taking into consideration the nervous interorganic connections there have been studied in details the principles that are on the base of the repercussion reactions, which can appear as a result of surgical interventions on the thoracic and abdominal cavities. O răspândire largă în chirurgia contemporană revine transplantului de organe şi ţesuturi. Prin prisma conexiunilor nervoase interorganice au fost studiate detaliat principiile ce stau la baza dezvoltării reacţiilor de repercusiune, care pot surveni în rezultatul intervenţiilor chirurgicale în cavitatea abdominală şi toracică

Морфофункциональная характеристика фуникулотестикулярной артериальной системы

The results of macroscopic and microscopic investigations confi rm, that the arterial system of the testicle represent a complex structure and has a series of mechanism necessary to control the blood circulation: loops, arcades, connective tunnels, arteriolovenular anastomosis, peri- and para-vascular structures and spaces.The extra organic elements – connective cords, anastomosis, the way of penetration and rami-fi cation in the testicle have a special function in the control of hemodynamics.Rezultatele investigaţiilor macromicroscopice şi microscopice confirmă că sistemul arterial al testiculului are o structură complicată şi dispune de un şir de mecanisme necesare pentru reglarea circulaţiei sângelui: anse, arcade, tunele conjunctivale, anastomoze arteriolo-venulare, structuri şi spaţii peri- şi paravasculare. Un rol deosebit în reglarea hemodinamicii au şi elementele extraorganice – coardele conjunctivale, anastomoze, modul de pătrundere şi ramificare în testicul.Результаты макроскопических и микроскопических исследований подтверждают, что артериальная система яичка представляет собой сложную структуру и имеет ряд механизмов, необходимых для контроля кровообращения: петли, аркады, соединительные туннели, артериоловенулярный анастомоз, пери- и парасосудистые анастомозы. Внеорганические элементы - соединительные тяжи, анастомозы, пути проникновения и разветвления в яичке имеют особую функцию в контроле гемодинамики

Виявлення закономірностей ізолювальної здатності піноутворювача для локалізації горючих рідин

Designing environmentally friendly protective materials for flammable liquids makes it possible to influence the processes of heat resistance and the physical-chemical properties of a protective coating over a certain time until the emergency is eliminated. Therefore, there is a need to study the conditions that form a barrier for thermal conductivity and to define a mechanism for decelerating the transfer of heat to a flammable liquid by using a foaming agent. Given this, a mathematical model has been built for the process of changing the concentration of a foaming agent when used as a coating. Based on the experimental data, it was established that the foaming layer destruction process took place over 618 s until the achieved critical thickness of the foaming layer made the conductivity cease. According to the derived dependences, the concentration value was calculated at which the critical value of the foaming layer thickness is achieved, which leads to the ignition of a flammable liquid, and is about 25 %. It has been proven that the process of decelerating the temperature involves the decomposition of a foaming agent under the influence of the temperature, with heat absorption and foam release, the insulation of heat at the surface of the flammable liquid. Given this, it has become possible to define the conditions for protecting flammable liquids using foaming agents by forming a barrier to thermal conductivity. Experimental studies have confirmed that under the influence of water evaporation and foaming agent diffusion into a layer of the flammable liquid, the critical amount of the foaming agent reached a minimum in 606 s and only then the flammable liquid ignited. Thus, there is reason to argue about the possibility of using foaming agents to protect the leaks of flammable liquids, capable of forming a protective layer at the surface of the material. It also becomes possible to establish methods for assessing the insulating capacity of a foaming agent that could inhibit the rate of temperature penetration and the release of flammable liquids' vaporsСоздание экологически безопасных защитных материалов для горючих жидкостей позволит влиять на процессы термостойкости и физико-химические свойства защитного покрытия в течение определенного времени до устранения чрезвычайной ситуации. Поэтому возникает необходимость исследования условий образования барьера для теплопроводности и установление механизма торможения передачи тепла к горючей жидкости пенообразователем. В связи с этим разработана математическая модель процесса изменения концентрации пенообразователя при применении в качестве покрытия. По экспериментальным данным установлено, что процесс разрушения слоя пенообразователя проходил в течение 618 с, когда наступила критическая толщина слоя пенообразователя и электропроводность отсутствовала. За выведенными зависимостями рассчитано значение концентрации, при которой наступает критическое значение толщины слоя пенообразователя, что приводит к воспламенению горючей жидкости, и составляет около 25 %. Доказано, что процесс торможения температуры заключается в разложении пенообразователя под действием температуры с поглощением тепла и выделением пены, изоляцией на поверхности горючей жидкости тепла. Благодаря этому стало возможным определение условий защиты горючих жидкостей, путем образования барьера для теплопроводности с пенообразователя. Экспериментальными исследованиями подтверждено, что под действием диффузии пенообразователя в слой горючей жидкости критический размер пенообразователя пришел к минимуму в течение 606 с, и только тогда горючая жидкость вспыхнула. Таким образом, есть основания утверждать о возможности применения пенообразователей для защиты проливов горючих жидкостей, способных образовывать на поверхности материала защитный слой. А также установить методы оценки изолирующей способности пенообразователя, который тормозит скорость проникновения температуры и выхода паров горючих жидкостейСтворення екологічно безпечних захисних матеріалів для горючих рідин дозволить впливати на процеси термостійкості і фізико-хімічні властивості захисного покриття протягом певного часу до усунення надзвичайної ситуації. Тому виникає необхідність дослідження умов утворення бар'єру для теплопровідності і встановлення механізму гальмування передачі тепла до горючої рідини піноутворювачем. У зв’язку з цим розроблена математична модель процесу зміни концентрації піноутворювача при застосуванні в якості покриття. За експериментальними даними встановлено, що процес руйнування шару піноутворювача проходив протягом 618 с, коли наступила критична товщина шару піноутворювача і електропровідність стала відсутня. За виведеними залежностями розраховано значення концентрації за якої настає критичне значення товщини шару піноутворювача, що приводить до займання горючої рідини, та становить близько 25 %. Доведено, що процес гальмування температури полягає в розкладанні піноутворювача під дією температури з поглинанням тепла і виділенням піни, ізолюванням на поверхні горючої рідини тепла. Завдяки цьому стало можливим визначення умов захисту горючих рідин, піноутворювачами шляхом утворення бар'єру для теплопровідності. Експериментальними дослідженнями підтверджено, що під дією випаровування води і дифузії піноутворювача у шар горючої рідини, критичний розмір піноутворювача дійшов до мінімуму протягом 606 с і тільки тоді горюча рідина спалахнула. Таким чином, є підстави стверджувати про можливість застосування піноутворювачів для захисту проливів горючих рідин, здатних утворювати на поверхні матеріалу захисний шар. А також встановити методи оцінки ізолювальної здатності піноутворювача який гальмує швидкість проникнення температури та виходу парів горючих ріди

Organization of the didactic process using different forms of instruction and evaluation of knowledge performed at the Human Anatomy Department

Catedra Anatomia omuluiOrganization of the didactic process using different forms of instruction and evaluation of knowledge performed at the Human Anatomy Department The article reflects principles of organization of the teaching process and new methods of training and evaluation of students’ knowledge which were elaborated and implemented at the Human anatomy Department of the State University of Medicine and Pharmacy “Nicolae Testemitanu”. The main goal of elaborated methods was to correspond to the international rigors and standards concerning preparation of high qualified medical specialists. În lucrare sunt expuse principiile de organizare a procesului didactic şi metodele noi de instruire şi evaluare a cunoştinţelor studenţilor elaborate şi implementate la catedra Anatomia Omului USMF „Nicolae Testemiţanu” în scopul corespunderii rigorilor şi standardelor internaţionale în misiunea de a pregăti specialişti-medici de înaltă calificare

Russians Inhibit the Expression of Happiness to Strangers: Testing a Display Rule Model

Cultural stereotypes and considerable psychological research suggest that Russians are less happy and more stoic than Americans and Westerners. However, a second possibility is simply that cultural norms deter Russians from displaying happiness that they actually feel. To test this second possibility, three studies compared the emotional inhibition tendencies in U.S. and Russian student samples. Although Russians and Americans were no different on subjective well-being (SWB), a consistent three-way interaction was found such that Russians (compared with Americans) reported greater inhibition of the expression of happiness (vs. unhappiness), but mainly to strangers (vs. friends/family). Russians also viewed their peers and countrymen as behaving similarly. Furthermore, a consistent interaction was found such that the degree of happiness inhibition with strangers was negatively correlated with SWB in the U.S. samples but was unrelated to SWB in the Russian samples. Given the equivalent levels of SWB observed in these data, we suggest that Russians may not be less happy than Americans, as this would illogically entail that they exaggerate their SWB reports while also claiming to inhibit their expression of happiness. Implications for emotion researchers and international relations are considered

Russians Inhibit the Expression of Happiness to Strangers: Testing a Display Rule Model

Cultural stereotypes and considerable psychological research suggest that Russians are less happy and more stoic than Americans and Westerners. However, a second possibility is simply that cultural norms deter Russians from displaying happiness that they actually feel. To test this second possibility, three studies compared the emotional inhibition tendencies in U.S. and Russian student samples. Although Russians and Americans were no different on subjective well-being (SWB), a consistent three-way interaction was found such that Russians (compared with Americans) reported greater inhibition of the expression of happiness (vs. unhappiness), but mainly to strangers (vs. friends/family). Russians also viewed their peers and countrymen as behaving similarly. Furthermore, a consistent interaction was found such that the degree of happiness inhibition with strangers was negatively correlated with SWB in the U.S. samples but was unrelated to SWB in the Russian samples. Given the equivalent levels of SWB observed in these data, we suggest that Russians may not be less happy than Americans, as this would illogically entail that they exaggerate their SWB reports while also claiming to inhibit their expression of happiness. Implications for emotion researchers and international relations are considered

Russians inhibit the expression of happiness to strangers: testing a display rule model

Cultural stereotypes and considerable psychological research suggest that Russians are less happy and more stoic than Americans and Westerners. However, a second possibility is simply that cultural norms deter Russians from displaying happiness that they actually feel. To test this second possibility, three studies compared the emotional inhibition tendencies in U.S. and Russian student samples. Although Russians and Americans were no different on subjective well-being (SWB), a consistent three-way interaction was found such that Russians (compared with Americans) reported greater inhibition of the expression of happiness (vs. unhappiness), but mainly to strangers (vs. friends/family). Russians also viewed their peers and countrymen as behaving similarly. Furthermore, a consistent interaction was found such that the degree of happiness inhibition with strangers was negatively correlated with SWB in the U.S. samples but was unrelated to SWB in the Russian samples. Given the equivalent levels of SWB observed in these data, we suggest that Russians may not be less happy than Americans, as this would illogically entail that they exaggerate their SWB reports while also claiming to inhibit their expression of happiness. Implications for emotion researchers and international relations are considered