KOMUNITAS LAMUN DI PERAIRAN PANTAI DESA ORI, MALUKU TENGAH

Seagrass communities play an important role in marine environments and estuary area, supporting communities of fish, snails and shellfish and other invertebrates. The diversity of seagrass species in the world is very low (<60 species). The coastal waters of Ori Village have a seagrass community that has never been studied. The purpose of this study was to estimate the structure of the seagrass community in the coastal waters of Ori Village, Central Maluku which includes the composition of type, density, frequency of occurence and percent of coverage. Seagrass sampling uses the line transect method. Five species of seagrass were found during the study grouped into two families: Cymodoceaceae and Hydrocharitaceae. The seagrass species found were Cymodocea rotundata, Halodule pinifolia, Enhalus acoroides Halophila ovalis and Thalassia hemprichii. T. hemprichii and E. acoroides have the highest densities (157 shoots/m2 and 137 shoots/m2, respectively). E. acoroides and T. hemprichii also have the highest frequency of occurence and relative coverage percent compared to other seagrass species found in the waters of Ori Village. Seagrass community in the waters of Ori Village is classified in a tight condition until dense. ABSTRAK Komunitas lamun memegang peranan penting di lingkungan laut dan daerah estuari, menyokong komunitas ikan, siput dan kerang-kerangan serta invertebrata lainnya. Keragaman spesies lamun di dunia sangat rendah (<60 spesies). Perairan pantai Desa Ori memiliki komunitas lamun yang belum pernah diteliti. Tujuan dari penelitian ini adalah untuk mengestimasi struktur komunitas lamun di perairan pantai Desa Ori, Maluku Tengah yang meliputi komposisi jenis, kerapatan, frekuensi kehadiran dan persen penutupan. Pengambilan sampel lamun menggunakan metode transek garis. Lima spesies lamun ditemukan selama penelitian yang dikelompokan dalam dua famili yaitu famili Cymodoceaceae dan Hydrocharitaceae. Spesies-spesies lamun yang ditemukan adalah Cymodocea rotundata, Halodule pinifolia, Enhalus acoroides Halophila ovalis danThalassia hemprichii. T. hemprichii dan E. acoroides memiliki kerapatan tertinggi (masing-masing 157 tegakan/m2 dan 137 tegakan/m2). E. acoroides dan T. hemprichii juga memiliki frekuensi kehadiran serta persen penutupan relatif tertinggi dibanding spesies-spesies lamun lainnya yang ditemukan di perairan Desa Ori. Komunitas lamun di perairan Desa Ori tergolong dalam kondisi rapat sampai padat. Kata Kunci: Lamun, komunitas, kerapatan, penutupan, Maluku Tengah

ENDOSCOPIC TREATMENT OF ESOPHAGEAL-BRONCHIAL FISTULA IN A PATIENT WITH A LEYDEN MUTATION

Bronchoesophageal Fistula (BEF) is an uncommon condition related to complex thoracic surgery. The development of BEF is usually an indication of the progression of bronchial or lung cancer; whereas the etiology of this illness being recorded as benign is much rarer – not exceeding 4 - 6%. [1, 2]. Surgery is the main method for treating patients who have benign BEF, allowing for the reliable result. At the same time, similar operations are extremely traumatic and are fraught with the development of post-operation complications, especially when concerning patients with genetically determined coagulopathy. Factor V Leiden mutation is a hereditary coagulopathy in which there is a point mutation in the gene that encodes blood coagulation factor V. Factor V Leiden mutation is the most common cause of the hereditary disposition to thrombosis, heart attacks, strokes in Europeans. The frequency of occurence among the population of the USA is 4 – 6% [3]. We present our own observation of successful endoscopic surgery to treat BEF in a patient with Factor V Leiden mutation and chronic pulmonary embolism.

Improving Student’s Professional Communication Abilities – A Part of Career Success?

Communication is the essence of interpersonal relations. The outcomes of all the activities we carry out depend on how we communicate, and in spite of the fact that it is essential that we prove our communication skills, we are poorer and poorer at doing so. Our study aims at revealing whether and to what extent young graduates of Romanian universities are aware of the importance of acquiring, practising and improving their communication skills, the more so that such abilities are decisive when it comes to achieving success in one’s career. Our study was conducted between 2-13 May, 2019 on the basis of an online questionnaire. The research methodology used in order to achieve the objectives formulated in the study consists in quantitative research, by means of a survey supported via an online questionnaire. The analysis of the data collected by means of the questionnaire was done using techniques such as: frequency of occurence of the answers to the questions addressed to the participants in the study, multiple response analysis and, where appropriate, in order to enhance the interpretation of the results, the calculation of the interquartiles applied to the questions quoted on a 10 point Likert-type scale. The 195 answers received were validated, analysed and processed econometrically using the SPSS for Windows and ANOVA applications. On the one hand, We have noticed that universities do not ensure minimum training to the future graduates with respect to the acquisition and development of communication and negotiation skills. For this matter we intend to extend the study in the near future, to see if this is the result of a lack of concern/interest on the part of the universities and/or on the part of future graduates. At the same time, we have found that the future university graduates are not stimulated to become aware of the importance of developing their communication and negotiation skills or to actively participate in various forms of scientific interaction such as national or international scientific sessions, round tables, meetings with outstanding representatives of the business environment, etc. Obviously, we are aware of the limitations of our study. Thus, we consider that its addressability was rather restricted. The group of respondents included very young graduates of economic higher education institutions. On the other hand, the respondents were not previously selected, so that there is the risk that the points of view expressed would be based not only on experience, but on intuition. Extending the respondent base (both in terms of age/expertise and field of activity) is also and important point for future action. Finally, we have formulated several proposals meant to contribute, in our opinion, to giving more importance to the training and development of business communication and negotiation abilities as a prerequisite of career success. Keywords: career success, graduates, communication abilities, interpersonal relations

CEPHALOBID NEMATODES (NEMATODA: CEPHALOBIDAE) IN AGROCENOSIS OF THE CENTRAL-EUROPEAN PART OF RUSSIA

Investigations of fauna of cephalobid nematodes from field agrocenosis were carried from the territory of the Central-European part of Russia in 2016–2018. In total ten genera of the family Cephalobidae were found. Nematodes of genus Acrolobus (A. emarginatus) has been reported in Russia for the first time. Chiloplacus and Eucephalobus nematodes were presented by the most species diversity. Nematodes of genera Cephalobus and Eucephalobus founded in the samples constantly (93 & 90% samples respectively). The second by frequency of occurence was taken species from genera Acrobeloides and Chiloplacus (86 & 75% samples). Acrobeles spp. and Cervidellus spp. detected in almost half of the soil samplies (57 & 48%). Acrolobus and Heterocephalobus nematodes were most rarely discovered genus (24 & 16%). Acroucrainicus and Stegelletina nematodes founded in agrocenosis singly and only in the territory of the Chernozem Region. Species of genera Acrolobus and Heterocephalobus were registered into the roots generally, while of the rest cephalobid genera were founded both in soil and into damaged or necrotic roots.

Old English Causative Alternation: The Transitivity of „openian” and „drỳgean”

The aim of this paper is to take a position in an ongoing debate over the direction of the derivation in the causative alternation. Since the solutions offered by synchronic linguistics carry with them certain problems, the research presented here accounts for the issue from the diachronic perspective, thus combining methods of corpus and theoretical linguistics. The results obtained from the quantitative analysis of the frequency of occurence of two Old English ‘change of state’ verbs in transitive and intransitive structures seem to support the detransitivization claim for at least one of the verbs. The qualitative study of the nature of the Old English causative alternation, in turn, indicates two different patterns according to which ‘change of state’ verbs may have alternated in the past. On the basis of this observation, the paper suggests a hypothesis about the temporal and directional diversification among the members of the group of ‘change of state’ verbs. This initial hypothesis offers solutions to certain problems for synchronic approaches to the direction of the derivation in the causative alternation.

Are synonymous codons indeed synonymous?

It has long been known that the distribution and frequency of occurence of synonymous codons can vary greatly among different species, and that the abundance of isoaccepting tRNA species could also be very different. The interaction of these two factors may influence the rate and efficiency of protein synthesis and therefore synonymous mutations might influence the fitness of the organism and cannot be treated generally as ‘neutral’ in an evolutionary sense. These general effects of synonymous mutations, and their possible role in evolution, have been discussed in several recent papers. This review, however, will only deal with the influence of synonymous codon replacements on the expression of individual genes. It will describe the possible mechanisms of such effects and will present examples demonstrating the existence and effects of each of these mechanisms.

RESEARCH ON FREQUENCY OF OCCURENCE OF HYDROBIONTS IN BIOFILMS OF ROTATING BIOLOGICAL CONTRACTORS DURING SEWAGE TREATMENT

There is research on frequency of occurence of hydrobionts in biofilms of rotating biological contractors, which are used in stations of biological cleaning in small settlements. There are 19 types of organisms, among them are filamentary bacteria and Nematoda worms.