Assessment of the functionality of aquatic ecosystems from the Republic of Moldova

Introduction. Currently, the quantity and quality of inland waters have been al-ready recognized as a major global and direct threat to human health, being one of the most pressing human problems, including the human right to safe drinking water. Material and methods. In the process of investigation, expeditions were made in order to conduct complex assessment of aquatic ecosystems in the hydrographical basins of the Dniester and Prut rivers, including expeditions, investigations în situ and and laboratory modelling were performed. Determination of the quality of water was carried out in accordance with ISO standards adapted to national ones and summarized in recently developed and published4 guides (http://zoology.md) The multi-annual materials of the Institute of Zoologyhave also been systematized. Results. The European directives developed several environmental issues, but the majority of population and authorities at different levels focus, primarily, on that of pollution. According to WHO (Programmer on Chemical Safety, 1992), out of over 6 million known chemical compounds, up to 500 thousand compounds are practically used; about 40 thousand of them are harmful to humans, and 12 thousand are toxic. This is a problem of global importance that requires ecotoxicological investigations about migration of heavy metals, POPs, and other toxic and hazardous substances in aquatic ecosystems. But, less attention is paid in Community regulations to the assessment of the functionality of aquatic ecosystems. This means that the monitoring program of the functionality of River ecosystems, such as the running water bodies, refers, particularly, to the assessment of the volume and level or water discharge, the speed of water flow, the amount of suspended substances and alluvium. Since these data are important for evaluation of the ecological and chemical state of the rivers, these parameters determine the balance in the “water-suspensions-silts” system and the ecological potential of the rivers. In some cases, like the Dniester River, the impact of DHPC is marked by sudden daily fluctuations and lowering of the water level to the bottom of the river, as well as by the imbalance of thermal and gas regime. The water flow volume has an obvious tendency to decrease downstream of Naslavcea. The decrease in the content of suspensions of mountain origin resulted in the intensification of the swamp process, the modification of the chemicals migration processes, the decrease of the buffer capacity and the increase of the secondary pollution of the Dniester River. Conclusion. Multi-annual investigations have allowed proposing the exclusion of hydropower complexes from the list of so-called "green enterprises", because they destroy the functioning of the river ecosystems. Construction of pumped storage hydroelectric power plants (PSHPP) on large rivers, which are the main source of drinking water an used in fish farming, should be banned, as they destroy all water organisms and damage the functioning of lotic aquatic ecosystems. Acknowledgment.The study was carried out within the framework of the national (AQUABIO 2020-2023-"Determinarea schimbărilor mediului acvatic, evaluarea mi-grației şi impactului poluanților, stabilirea legităților funcționării hidrobiocenozelor şi prevenirea consecinţelor nefaste asupra ecosistemelor") and international (BSB27 MONITOX, BSB165 HydroEcoNex) projects

Sartup de succes (yahoo strategies)

Starting a startup is not the great mystery it seems from outside. If you want to create a successful startup, you must satisfy three conditions: to start with good people, to make something customers actually want, and to spend as little money as possible. Some startups fail because they don‟t pay enough attention at least at one of these conditions. The most important are not ideas, but the people who have them. Good people can fix bad ideas, but good ideas can't save bad people. Financially, a startup is like a pass/fail course. The way to get rich from a startup is to maximize the company's chances of succeeding, not to maximize the amount of stock you retain, and of course to give customers what they want

Analiza imunității la zgomot a sistemelor de comunicare cu accesul multiplu cu divizare în cod în baza studiului proprietăților derivatelor funcțiilor Walsh (secvențe M și coduri Gold)

Fișierul atașat conține: Rezumat, Cuprins, Introducere, Bibliografie.Problematica studiului: Analiza influenței asupra imunității la zgomot a sistemelor de transmisie a datelor în funcție de tipul și proprietățile codurilor de extensie. Scopul lucrării: Analiza imunitatii la zgomot a sistemului de comunicații multicanal cu multiplexare prin diviziune de cod în baza studiului proprietăților derivatelor funcțiilor Walsh în funcție de funcția generatoare (secvențe M, coduri Gold), care au emisiile maxime ale lobului principal, nivelurile minime ale lobilor laterali și emisiile minime.Research problem: Analysis of the influence on noise immunity of data transmission systems according to the type and properties of extension codes. Thesis purpose: Noise immunity analysis of a code division multiplexing multichannel communications system based on the study of the properties of the derivatives of the Walsh functions according to the generating function (M sequences, Gold codes), which have the maximum emissions of the main lobe, the minimum levels of the lateral lobes and minimum emissions

Juzgar los crímenes de Estado. A 15 años de la reapertura de los juicios en Argentina

Autora: Camila Zubcov. Licenciada en Sociología (UBA). Investigadora y coordinadora de proyectos en el Observatorio de Género y Políticas Públicas (OGYPP). Integrante del Observatorio de Crímenes de Estado (OCE)

Mutations in FRMD7, a newly identified member of the FERM family, cause X-linked idiopathic congenital nystagmus.

Idiopathic congenital nystagmus is characterized by involuntary, periodic, predominantly horizontal oscillations of both eyes. We identified 22 mutations in FRMD7 in 26 families with X-linked idiopathic congenital nystagmus. Screening of 42 singleton cases of idiopathic congenital nystagmus (28 male, 14 females) yielded three mutations (7%). We found restricted expression of FRMD7 in human embryonic brain and developing neural retina, suggesting a specific role in the control of eye movement and gaze stability

Analising android SQLite databases

Resursă electronicăThis article is intended for those who were not familiar with SQL programming in android. Here it is shown how to use SQL android and its elements for a comparison to other systems, and their differences

A utilização de argumentos científicos como forma dogmática de fundamentar decisões judiciais: ação direta de incostitucionalidade n° 3510

O atual trabalho verificará a forma com que o poder Judiciário opera o conhecimento científico. Para tanto será reconstruída a Ação Direta de Inconstitucionalidade n.º 3510, na qual foi suscitada a inviolabilidade do direito à vida do embrião humano em face das pesquisas científicas com células-tronco embrionárias. Com efeito, será discutida a metodologia científica a fim de avaliar cuidadosamente o julgamento da ação. Será trabalhado, por exemplo: a imprecisão do indutivismo ingênuo; a falsificabilidade como critério de demarcação entre ciência e pseudociência em Karl Popper; os valores adotados pelos cientistas na escolha entre teorias – Thomas Kuhn; a questão da incomensurabilidade entre paradigmas concorrentes; e, evidentemente, o anarquismo epistemológico ou “contra o método” de Paul Feyerabend, o qual defende que a difusão do conhecimento deve ser exercida pela multiplicidade de ideologias e não pela imposição unilateral da doutrina científica. Portanto, estas considerações debatidas entre os filósofos servirão de subsídios para aplicação dos limites do conhecimento científico no caso em testilha – assim como serão observadas as teses que relativizam a vida humana – de tal modo o Magistrado que, ignorando esses limites, impuser de forma absoluta o discurso científico estará sendo tão dogmático quanto o fanático religioso

Evaluarea conţinutului de plumb în solurile Republicii Moldova

Articolul prezintă o evaluare a datelor de laborator privind conţinutul plumbului în solurile Republicii Moldova Analiza rezultatelor obţinute denotă faptul existenţei unei probleme actuale de sănătate publică, cauzată de poluarea mediului cu compuşii plumbului. Poluarea solului cu plumb prezintă o problemă stringentă de sănătate publică determinată de expunerea populaţiei la poluanţii în cauză

Bacterioplankton of the Dniester River and its right tributaries on the territory of the Republic of Moldova in the 2024 vegetation period

The article presents the results of research of bacterioplankton communities in the lotic ecosystems of the Dniester River basin on the Republic of Moldova territory during the vegetation period (spring - summer - autumn) of 2024. The quantitative parameters of bacterioplankton physiological groups in the right tributaries of the Dniester - the rivers Răut, Bâc and Botna - were studied in comparison with the state of these communities in the Dniester upstream and downstream of the confluence. Water quality, assessed by the presence of representatives of physiological groups and their numerical composition in the studied ecosystems, ranged from class I (Dniester upstream of the confluence) to class III (Dniester downstream of the confluence with the River Bâc) and classes IV-V (the River Bâc)