bluuebunny/crossref_metadata_2025 huggingface dataset:
Adaptation of the humanoid robot to speech disfluency therapy
Authors: Kwaśniewicz Łukasz , Kuniszyk-Jóźkowiak Wiesława , Wójcik Grzegorz M. , Masiak Jolanta
Published: November 2016

The paper describes an application that allows to use a humanoid robot as a stutterer’s assistant and therapist. Auditory and visual feedback has been used in the therapy with a humanoid robot. For this purpose, the common method of “echo” was modified. The modification is that the speaker hears delayed speech sounds uttered by the robot. The sounds of speech coming from an external microphone are captured and delayed by a computer and then, using User Datagram Protocol (UDP), sent to the robot’s system and played in its speakers. This system allows the elimination of negative feedback and external sound field’s noise. The effect of this therapy is enhanced by the fact that, in addition to the effect, relating to the action of the delayed feedback, the speaker has company during the difficult process of speaking. Visual feedback has been realized as changes in the robot’s hand movements according to the shape of the speech signal envelope and possibility of controlling speech with a metronome effect.
Applications of Quaternionic Holomorphic
Geometry to minimal surfaces
Authors: Leschke K. , Moriya K.
Published: November 2016

In this paper we give a survey of methods of Quaternionic Holomorphic Geometry and of applications
of the theory to minimal surfaces. We discuss recent developments in minimal surface theory using
integrable systems. In particular, we give the Lopez–Ros deformation and the simple factor dressing in terms
of the Gauss map and the Hopf differential of the minimal surface. We illustrate the results for well–known
examples of minimal surfaces, namely the Riemann minimal surfaces and the Costa surface.
Orbital derivatives over subgroups and their combinatorial and group-theoretic properties
Authors: Pogorelov Boris A , Pudovkina Marina A
Published: November 2016

Properties of the orbital derivatives over subgroups of the group Gn
generated by the additive groups of the residue ring 𝕫2n
and the n-dimensional vector space Vn
over the field GF(2) are considered. Nonrefinable sequences of nested orbits for the subgroups of the group Gn
and of the Sylow subgroup Pn
of the symmetric group S
2n
are described. For the orbital derivatives, three analogs of the concept of the degree of nonlinearity for functions over 𝕫2n
or Vn
are suggested.
COST-FP1105: Properties of PLA films reinforced with unmodified and acetylated freeze dried nanofibrillated cellulose
Authors: Žepič Vesna , Poljanšek Ida , Oven Primož , Čop Matjaž
Published: November 2016

Freeze dried nanofibrils were acetylated in a heterogeneous system with acetic anhydride, pyridine, and dimethylformamide and the obtained acetylated cellulose nanofibrils (CNFac) were combined with poly(lactic acid) (PLA) to a composite. CNFac with its partially hydrophobic surface showed a good compatibility with PLA resulting in composite films with improved properties. Tensile strength (TS), modulus of elasticity (MOE), and elongation at break (EB) of PLA/CNF increased significantly when 2–5% of CNFac was added to the PLA matrix, while the addition of 10% and higher amounts CNFac decreased the EB at a higher TS and MOE. Mechanical parameters did not improve in the case of unmodified CNF addition. The addition of CNFac maintained transparency and had absorbance values between those of pure PLA film and PLA film with 2% CNF, while films formed with the addition of 5 and 10% of CNF were less transparent. The addition of CNF did not essentially affect the thermal properties of nanocomposite films. The addition of 2–10% of CNFac increased the enthalpy and maximal temperature of cold crystallization as opposed to higher loading of CNFac. The results of differential scanning calorimetry (DSC) coincide with those of the mechanical properties. Tailoring properties of PLA/CNF are only reproducible in case of homogenously distributed CNF within the PLA matrix and by an improved interphase adhesion between PLA and CNFac.
Pd/ZrO2: An Efficient Catalyst for Liquid Phase Oxidation of Toluene in Solvent Free Conditions
Authors: Siddique Mohsin , Saeed Muhammad , Ilyas Mohammad , Gulab Hussain
Published: November 2016

0.1 % Pd/ZrO2 was synthesized and characterized by various physicochemical techniques and was successfully used as catalyst for solvent free oxidation of toluene in the presence of molecular oxygen using batch reactor. The catalytic performance of Pd/ZrO2 was explored in terms of effect of catalyst loading, reaction time, temperature and partial pressure of oxygen on oxidation of toluene in solvent free conditions. Pd/ZrO2 was found as a stable catalyst under the reaction conditions. Used catalyst exhibited the same catalytic efficiency as fresh catalyst under similar reaction conditions. Reaction was taking place according to Langmuir-Hinshelwood type of mechanism.
Spectatorship in the Theatre, the Cinema and Photography
Authors: De Vos Laurens
Published: November 2016

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A Novel Technique to Detect Code for SAC-OCDMA System
Authors: Bharti Manisha , Kumar Manoj , Sharma Ajay K.
Published: November 2016

The main task of optical code division multiple access (OCDMA) system is the detection of code used by a user in presence of multiple access interference (MAI). In this paper, new method of detection known as XOR subtraction detection for spectral amplitude coding OCDMA (SAC-OCDMA) based on double weight codes has been proposed and presented. As MAI is the main source of performance deterioration in OCDMA system, therefore, SAC technique is used in this paper to eliminate the effect of MAI up to a large extent. A comparative analysis is then made between the proposed scheme and other conventional detection schemes used like complimentary subtraction detection, AND subtraction detection and NAND subtraction detection. The system performance is characterized by Q-factor, BER and received optical power (ROP) with respect to input laser power and fiber length. The theoretical and simulation investigations reveal that the proposed detection technique provides better quality factor, security and received power in comparison to other conventional techniques. The wide opening of eye in case of proposed technique also proves its robustness.
Crystal structure of methyl-2-methyl-4-(2-oxo-2-phenylethyl)-5-phenyl-1H-pyrrole-3-carboxylate, C21H19NO3
Authors: Naganagowda Gadada , Mahlaka Thabo Joel , Meijboom Reinout
Published: November 2016

C21H19NO3, monoclinic, P21/n (no. 14), a = 10.137(2) Å, b = 12.3205(18) Å, c = 14.700(3) Å, β = 106.432(1)°, V = 1760.9(6) Å3, Z = 4, R
gt(F) = 0.0511, wR
ref(F
2) = 0.1808, T = 293 K.
Rubber Coring of Injectable Medication Vial Stoppers: An Evaluation of Causal Factors
Authors: Chennell Philip , Bourdeaux Daniel , Citerne Quentin , Arnaud Catherine , Cosserant Sylvie , Boiko-Alaux Véra , Sautou Valerie
Published: November 2016

Purpose:

Coring of a medication vial’s rubber stopper has been reported as a major cause of visible particle presence in injectable preparations. In this study, we investigated and quantified visible particle formation caused by coring associated with four potential causal factors.

Methods:

The factors studied were: nature of the rubber stopper; rubber stopper thickness, type of metal needle bevel used to pierce the stopper, and puncture technique. For each one of 16 different situations, 40 medication vial rubber stoppers were punctured, and the contents filtered. The filters were then examined under optical microscopy and particles present counted and measured.

Results:

The incidence of particle formation ranged from 0 % to 75 %, depending on the situation. Particle length was on average of 0.98±0.39 mm. The situation that gave the most particles (75 %; 30/40) was obtained when using a short bevelled needle, a 4 mm thick chlorobutyl vial stopper and with a puncture angle of 90°. Whilst a puncture technique reduced particle formation by more than 50 % for the most at risk situation, but without eliminating particle formation (residual formation of 22.5 %; 11/40), the use of a blunt bevelled needle totally eliminated the incidence of visible particle creation. The thickness of the rubber and the nature of the elastomer seemed to be linked to coring incidence, but in lesser proportions.

Conclusion:

Puncturing the stoppers using a technique with a 45° puncture angle reduced particle formation, but only the use of a blunt metal needle totally eliminated it.
Short-Term and Long-Term Variability of Antenna Position Due to Thermal Bending of Pillar Monument at Permanent GNSS Station
Authors: Gerhatova Lubomira , Hefty Jan , Spanik Peter
Published: November 2016

The variability of daily site coordinates at permanent GNSS station is a sum of many disturbing factors influencing the actual satellite observations, data processing, and bias modelling. In the paper are analysed possibilities of monitoring the instability of GNSS antenna pillar monument by the independent observations using the precise inclination sensor. Long-term series from three different types of pillars show specific features in amplitude and temporal evolution of monument bending. Correlations with daily temperature and/or solar radiation changes were proved.
Theoretical and Applied Research in the Field of Higher Geodesy Conducted in Rzeszow
Authors: Kadaj Roman , Świętoń Tomasz
Published: November 2016

Important qualitative changes were taking place in polish geodesy in last few years. It was related to application of new techniques and technologies and to introduction of European reference frames in Poland. New reference stations network ASG-EUPOS, together with Internet services which helps in precise positioning was created. It allows to fast setting up precise hybrid networks. New, accurate satellite networks became the basis of new definitions in the field of reference systems. Simultaneously arise the need of new software, which enables to execute the geodetic works in new technical conditions. Authors had an opportunity to participate in mentioned undertakings, also under the aegis of GUGiK, by creation of methods, algorithms and necessary software tools. In this way the automatic postprocessing module (APPS) in POZGEO service, a part of ASG-EUPOS system came into being. It is an entirely polish product which works in Trimble environment. Universal software for transformation between PLETRF89, PL-ETRF2000, PULKOWO’42 reference systems as well as defined coordinate systems was created (TRANSPOL v. 2.06) and published as open product. An essential functional element of the program is the quasi-geoid model PL-geoid-2011, which has been elaborated by adjustment (calibration) of the global quasi-geoid model EGM2008 to 570 geodetic points (satellite-leveling points). Those and other studies are briefly described in this paper.
Permanent GNSS Observations at Agh-Ust Satellite Observatory
Authors: Kudrys Jacek
Published: November 2016

GPS satellite observations at the Faculty of Mining Surveying and Environmental Engineering AGH-UST are conducted since the early 90s of the last century. In 2001, efforts have been made on getting permanently functioning GPS station. At present, observatory is EPN operational center for two GNSS stations KRAW and KRA1. Moreover, KRA1 station is one of fundamental control points in polish horizontal network. The article gives the history and scope of the research carried out in the satellite observatory AGH-UST during the period 2001 - 2015.
Photogrammetry at the Warsaw University of Technology – Past and Present
Authors: Zawieska Dorota , Kurczyński Zdzisław
Published: November 2016

The Department of Photogrammetry, Remote Sensing and Geographic Information Systems at the Warsaw University of Technology is one of six organizational units of the Faculty of Geodesy and Cartography. The photogrammetry has been under interest of scientists in Faculty for over 90 years. The last decades has been characterized by the incredible development of photogrammetric technologies, mainly towards wide automation and popularization of derivative products for processing data acquired at satellite, aerial, and terrestrial levels. The paper presents achievements of scientists employed in Photogrammetric Research Group during last decades related to projects that were carried out in this department.
Electrophysiological Evidence for Alternative Motor Networks in REM Sleep Behavior Disorder
Authors: Hackius Marc , Werth Esther , Sürücü Oguzkan , Baumann Christian R. , Imbach Lukas L.
Published: November 2016

Patients with Parkinson's disease (PD) and REM sleep behavior disorder (RBD) show mostly unimpaired motor behavior during REM sleep, which contrasts strongly to coexistent nocturnal bradykinesia. The reason for this sudden amelioration of motor control in REM sleep is unknown, however. We set out to determine whether movements during REM sleep are processed by different motor networks than movements in the waking state. We recorded local field potentials in the subthalamic nucleus (STN) and scalp EEG (modified 10/20 montage) during sleep in humans with PD and RBD. Time-locked event-related β band oscillations were calculated during movements in REM sleep compared with movements in the waking state and during NREM sleep. Spectral analysis of STN local field potentials revealed elevated β power during REM sleep compared with NREM sleep and β power in REM sleep reached levels similar as in the waking state. Event-related analysis showed time-locked β desynchronization during WAKE movements. In contrast, we found significantly elevated β activity before and during movements in REM sleep and NREM sleep. Corticosubthalamic coherence was reduced during REM and NREM movements. We conclude that sleep-related movements are not processed by the same corticobasal ganglia network as movements in the waking state. Therefore, the well-known seemingly normal motor performance during RBD in PD patients might be generated by activating alternative motor networks for movement initiation. These findings support the hypothesis that pathological movement-inhibiting basal ganglia networks in PD patients are bypassed during sleep.

SIGNIFICANCE STATEMENTThis study provides evidence that nocturnal movements during REM sleep in Parkinson's disease (PD) patients are not processed by the same corticobasal ganglia network as movements in the waking state. This implicates the existence of an alternative motor network that does not depend directly on the availability ofl-Dopa in the basal ganglia. These findings further indicate that some PD patients are able to perform movements in the dopamine depleted state, possibly by bypassing the pathological basal ganglia network. The existence and direct activation of such alternative motor networks might finally have potential therapeutic effects for PD patients.
Muscle Fibers Secrete FGFBP1 to Slow Degeneration of Neuromuscular Synapses during Aging and Progression of ALS
Authors: Taetzsch Thomas , Tenga Milagros J. , Valdez Gregorio
Published: November 2016

The identity of muscle secreted factors critical for the development and maintenance of neuromuscular junctions (NMJs) remains largely unknown. Here, we show that muscle fibers secrete and concentrate the fibroblast growth factor binding protein 1 (FGFBP1) at NMJs. Although FGFBP1 expression increases during development, its expression decreases before NMJ degeneration during aging and in SOD1G93Amice, a mouse model for amyotrophic lateral sclerosis (ALS). Based on these findings, we examined the impact of deleting FGFBP1 on NMJs. In the absence of FGFBP1, NMJs exhibit structural abnormalities in developing and middle age mice. Deletion of FGFBP1 from SOD1G93Amice also accelerates NMJ degeneration and death. Based on these findings, we sought to identify the mechanism responsible for decreased FGFBP1 in stressed skeletal muscles. We show that FGFBP1 expression is inhibited by increased accumulation of the transforming growth factor-β1 (TGF-β1) in skeletal muscles and at their NMJs. These findings suggest that targeting the FGFBP1 and TGF-β1 signaling axis holds promise for slowing age- and disease-related degeneration of NMJs.

SIGNIFICANCE STATEMENTThe neuromuscular junction (NMJ) is critical for all voluntary movement. Its malformation during development and degeneration in adulthood impairs motor function. Therefore, it is important to identify factors that function to maintain the structural integrity of NMJs. We show that muscle fibers secrete and concentrate the fibroblast growth factor binding protein 1 (FGFBP1) at NMJs. However, FGFBP1 expression decreases in skeletal muscles during aging and before NMJ degeneration in SOD1G93Amice, a mouse model for amyotrophic lateral sclerosis. We show that transforming growth factor-β1 is responsible for the decreased levels of FGFBP1. Importantly, we demonstrate critical roles for FGFBP1 at NMJs in developing, aging and SOD1G93Amice.
Gut microbiota influences pathological angiogenesis in obesity‐driven choroidal neovascularization
Authors: Andriessen Elisabeth MMA , Wilson Ariel M , Mawambo Gaelle , Dejda Agnieszka , Miloudi Khalil , Sennlaub Florian , Sapieha Przemyslaw
Published: November 2016

Age‐related macular degeneration in its neovascular form (NV AMD) is the leading cause of vision loss among adults above the age of 60. Epidemiological data suggest that in men, overall abdominal obesity is the second most important environmental risk factor after smoking for progression to late‐stage NV AMD. To date, the mechanisms that underscore this observation remain ill‐defined. Given the impact of high‐fat diets on gut microbiota, we investigated whether commensal microbes influence the evolution of AMD. Using mouse models of NV AMD, microbiotal transplants, and other paradigms that modify the gut microbiome, we uncoupled weight gain from confounding factors and demonstrate that high‐fat diets exacerbate choroidal neovascularization (CNV) by altering gut microbiota. Gut dysbiosis leads to heightened intestinal permeability and chronic low‐grade inflammation characteristic of inflammaging with elevated production of IL‐6, IL‐1β, TNF‐α, and VEGF‐A that ultimately aggravate pathological angiogenesis.
Gut flora connects obesity with pathological angiogenesis in the eye
Authors: Scholz Rebecca , Langmann Thomas
Published: November 2016

Neovascular age‐related macular degeneration (nvAMD) can cause severe vision loss among the elderly. Genetic risk factors for AMD include several variants related to the immune system and lipid metabolism. Obesity is a well‐known predisposing factor for nvAMD but how this metabolic disorder modulates angiogenesis in the posterior eye segment was largely unknown. In this issue of EMBO Molecular Medicine, Andriessen et al () show that high‐fat diet‐induced obesity causes dysbiosis in the gut that drives retinal inflammation and pathological angiogenesis in a mouse model of laser‐induced choroidal neovascularization (CNV).
Poetics of Transcendence: Stylistic Reduction as a Tool for Representation of Sacred Meanings
Authors: Brazgovskaya Elena
Published: November 2016

The main direction of the work is connected to the representation of abstract (transcendent) objects in music and literature. The article analyses “Cantus in Memoriam Benjamin Britten” by Arvo Pärt and some poems of Czesław Miłosz. The metaphysical dimension of reality involves forms and things, existing beyond the boundaries of empirical perception and, at first sight, beyond the descriptive practices. Abstract objects are available in intellectual experience, but culture must transform them into a symbolic form. As a rule, it is connected to the practice of art minimalism. The essence of minimalism is the reduction of number of stylistic tools and “purification” the perception from the visual / auditory images (not a mimetic use of language). For the representation of the sacred Pärt uses only mensural canon form, scale and chord. These “characters” are deprived of descriptive function, but have symbolic potential (canon as a sign of stopped time, the eternal return). The distinctive feature of the Miłoszʼs style is the pursuit to “clean” the signs (indexical and symbolic). There is the reverse side of language distillation: the rejection of the subjective position, emotional experience, the distance between the person and the object of representation.
(Re)construction of National Identity in the Lithuanian and Latvian Literary Press during the National Revival Period in the Late 20th Century
Authors: Jonkutė Viktorija
Published: November 2016

The present article, exploring the texts from Lithuanian literary weekly ‘Literatūra ir menas’, monthly ‘Pergalė/Metai’ and Latvian ‘Literatūra un Māksla’ and ‘Karogs’ of the years 1988–1992, discusses and compares the most representative episodes of (self)reflection, the changes and continuity of national identity during the time. It is shown, how collective memory, (re)created by rituals of communicative memory, participates in the (re)construction of national identity as well as tendencies of heroisation and mythologisation, cases of deconstruction, demythologisation (Suodumas, Gavelis). It is claimed that canonical impersonate expression forms of nationality and national heroes (Lačplėsis, Rainis), i.e. general cultural universals, expressions of national ideals dominate in Latvian reflections. The pantheon of individual national heroes is more fragmented and scattered in Lithuanian reflections and participates in communicative memory more passively than in Latvian. But here self-reflection and representation of exiles as collective national heroes is much more intensive
The Influence of the Grammar­ Translation Method and the Direct Method on Students’ Results
Authors: Kącka-Stanik Iwona
Published: November 2016

It is believed that the way teacher introduces new material is directly connected with students’ results. Due to that fact, teachers are advised to choose the method that will help the students absorb the new material efficiently and at the same time in a pleasant way. Some of the teachers tend to use the grammartranslation method and translate every word into the mother tongue. However, there are also such teachers who tend to introduce the new material with the help of direct method. They only use target languageand teach children communication.Teachers have always wondered which method is better, more attractive to students and more effective when it comes to the learners’ progress and test results. This article presents theoretical background connected with teaching children. The theoretical issues concern teaching in general, the description of two methods used while introducing the new material as well as types of techniques used in the grammar-translation and direct method.To sum up, it can be concluded that there is a connection between the method the teacher uses to introduce new material and students’ results. The results of the study explain the significance of choosing the right method. Due to that fact, the teachers are recommended to use the direct method to keep the learners interested and motivated.
Masculinity Representation in Lithuanian Interwar Press Advertising
Authors: Bankauskaitė-Sereikienė Gabija , Stravinskaitė Raminta
Published: November 2016

The analysis of this article focuses on normative interwar masculinity images. As advertising is an integral part of modern society revealing its face, the analysis is based on press advertisements collected from interwar magazines. Hegemonic features such as: a super man, a successful careerist, the man of a family, a hedonistic and narcissistic man were analysed. The analysis is focused on verbal and non-verbal expressions. The results have shown that the image of a super man was mostly related to the body and its size, ability to do a hard work. Main details – classic suit and luxury attribute such as a car usually represented a good social status and described a man as a successful careerist. It was noted that during the interwar period hegemonic masculinity was expressed by self-confidence. It was represented by a hedonistic, level-headed man images. The construct of the patriarch of the family started to be criticized during the interwar period and was slowly replaced by a new image of a careful man and husband.
The Socialist Youth Union (1957–1976) – Polish Counterpart of Komsomol
Authors: Sadowska Joanna
Published: November 2016

The political system of the Polish People’s Republic was modelled on the Soviet one. Polish youth organizations had the ambitions of being counterparts of Komsomol: they adopted similar work methods and tried to play a similar role in the country. The obvious differences resulted from the specificity of each country and the differences in the societies. The most deeply rooted in the memory of Poles is the Socialist Youth Union, which, being the most stable, existed for almost 20 years with nearly 1.3 million members in the early 1970s. The Union was closely connected with the Polish United Workers’ Party and it had to accomplish two main kinds of political task: to select and prepare future members of the Party, both ordinary and those in the managerial positions, and to educate the whole young generation. The Party indeed treated the organization as its agency, an office dealing with the affairs of youths. However, non-political activity of the Union (culture, entertainment, tourism, etc.) was much more effective and evaluated more positively. Actually, there was much more falsehood in the Union: many members were almost completely passive and the work was often only simulated.
Survival and Neurodevelopmental Outcomes of Preterms Resuscitated With Different Oxygen Fractions
Authors: Boronat Nuria , Aguar Marta , Rook Denise , Iriondo Martin , Brugada María , Cernada María , Nuñez Antonio , Izquierdo Montserrat , Cubells Elena , Martinez María , Parra Anna , van Goudoever Hans , Vento Máximo
Published: November 2016

BACKGROUND AND OBJECTIVES:

Stabilization of preterm infants after birth frequently requires oxygen supplementation. At present the optimal initial oxygen inspiratory fraction (Fio2) for preterm stabilization after birth is still under debate. We aimed to compare neurodevelopmental outcomes of extremely preterm infants at 24 months corrected age randomly assigned to be stabilized after birth with an initial Fio2 of 0.3 versus 0.6 to 0.65 in 3 academic centers from Spain and the Netherlands.

METHODS:

Randomized, controlled, double-blinded, multicenter, international clinical trial enrolling preterm infants <32 weeks’ gestation assigned to an initial Fio2 of 0.3 (Lowox group) or 0.6 to 0.65 (Hiox group). During stabilization, arterial pulse oxygen saturation and heart rate were continuously monitored and Fio2 was individually titrated to keep infants within recommended ranges. At 24 months, blinded researchers used the Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III) to assess visual acuity, neurosensory deafness, and language skills.

RESULTS:

A total of 253 infants were recruited and 206 (81.4%) completed follow-up. No differences in perinatal characteristics, oxidative stress, or morbidities during the neonatal period were assessed. Mortality at hospital discharge or when follow-up was completed didn’t show differences between the groups. No differences regarding Bayley-III scale scores (motor, cognitive, and language composites), neurosensorial handicaps, cerebral palsy, or language skills between groups were found.

CONCLUSIONS:

The use of an initial lower (0.3) or higher (0.6–0.65) Fio2 during stabilization of extremely preterm infants in the delivery room does not influence survival or neurodevelopmental outcomes at 24 months.
Role of health care professionals in preventative activities and vaccination programs during outbreaks
Authors: Balogh Sándor , Papp Renáta , Busa Csilla , Csikós Ágnes
Published: November 2016

Purpose:

The general purpose of TELL ME study was to give an insight into the experiences of European family physicians with management of H1N1 pandemic flu.

Methods:

Qualitative research methods (focus group discussions, one-to-one interviews, and online data collection) were used to explore family doctors’ opinion and suggestions. Overall 158 family physicians took part in the study from six European countries.

Results:

Family doctors’ most important experience was that the official campaign was not able to compensate negative effects of the mass media. Due to the poor evidence-based information about new vaccines, it was difficult to convince the public and some health care professionals too. Lack of unified directives – under unclear circumstances – made the routine patient care more difficult and hampered the collaboration between different health care providers. Family physicians felt a pressure from health authorities to achieve high immunization rate, but got only a little support from them. Despite the difficulties, vaccination program was a success, mainly among high-risk population. For better handling of a future pandemic, Hungarian family physician made many general and practical suggestions.
Performa Ikan Mas (Cyprinus carpio Linn) Starin Wildan Pada Fase Pendederan Dua dengan Tingkat Kepadatan Berbeda
Authors: Supriyanto Supriyanto , Dharmawantho Listio Dharmawantho
Published: November 2016

Abstrak lengkap dapat dilihat pada full. PDFKegiatan ini untuk mengetahui laju pertumbuhan dan sintasan benih ikan mas strain Wildan yang dipelihara secara outdoor di kolam beton dengan kepadatan berbeda.
Teknik Pembuatan Tepung Darah Silase dan Non Silase Sebagai Bahan Pakan Ikan
Authors: Nugraha Aditya , Mikdarullah Mikdarullah
Published: November 2016

Abstrak lengkap dapat dilihat pada full. PDFKegiatan ini bertujuan untuk mengetahui teknik pembuatan tepung silase berbahan dan non silase berbahan darah sapi.
Teknik Deteksi Virus Viral Nervous Necrosis (VNN) pada Ikan laut Menggunakan KIT IQ Plus
Authors: Aryani Ni Luh Tati , Mastantra Kadek , Supartha Nengah Gede
Published: November 2016

Abstrak lengkap dapat dilihat pada full PDFInveksi viral nervous necrosis (VNN) disebabkan oleh virus golongan  beta-nodavirus (famili Novaviridae) yang dapat menyebabkan  kematian massal pada ikan kerapu dan kakap
Pembesaran Abalon, Haliotis squamata di bak dengan sistem resirkulasi semi tertutup
Authors: Kurniawan Hendra Agung , Buda Made , Sujarwani Syam
Published: November 2016

Abstrak lengkap dapat dilihat pada full. pdfPembesaran abalon di bak dengan sistem resirkulasi tertutup merupakan teknik inovasi baru dalam budidaya abalon. Tujuannya untuk mendapatkan teknologi pembesaran abalon (Halitosis squamata) dengan sistem resirkulasi yang diharapkan menghasilkan pertumbuhan dan sintasan yang tinggi, serta efisien dalam penggunaan air.
LAJU PENYERAPAN INSEKTISIDA TRIKLORFON PADA UDANG WINDU (Penaeus monodon)
Authors: Pong-Masak Petrus Rani , Supriyono Eddy , Nirmala Kukuh , Koesoemadinata Santosa
Published: November 2016

Penelitian ini bertujuan untuk mengetahui laju penyerapan dan rasio biokonsentrasi insektisida triklorfon dalam tubuh udang windu pada tingkat konsentrasi pemaparan yang berbeda. Penelitian dilakukan dalam skala laboratorium dengan Rancangan Acak Lengkap menggunakan akuarium. Bahan uji yang digunakan adalah formulasi insektisida triklorfon serta hewan uji adalah pasca larva udang windu. Perlakuan adalah tingkatan pemaparan insektisida triklorfon, yaitu 0,0037 mg/L; 0,0110 mg/L; dan 0,0183 mg/L dalam air laut bersalinitas 20 ppt. Analisis residu triklorfon dalam sampel udang windu dan air diekstraksi, kemudian diidentifikasi menggunakan kromatografi gas cairan. Hasil penelitian menunjukkan bahwa laju penyerapan insektisida triklorfon oleh udang windu pada perlakuan 0,0110 mg/L dan 0,0183 mg/L tidak berbeda nyata tetapi keduanya berbeda dengan perlakuan 0,0037 mg/L. Laju penyerapan secara berurutan sebesar 0,0049 mg/kg/jam; 0,0088 mg/kg/jam, dan 0,0086 mg/kg/jam masing-masing pada perlakuan 0,0037 mg/L; 0,0110 mg/L, dan 0,0183 mg/L. Rasio biokonsentrasi triklorfon dalam tubuh udang windu semakin kecil dengan meningkatnya konsentrasi triklorfon, yaitu dengan nilai 2,4545; 1,6132; dan 1,3373 masing-masing pada perlakuan 0,0037 mg/L: 0,0110 mg/L, dan 0,0183 mg/L.The experiment aimed to study the uptake and bioconcentration ratio of trichlorfon insecticide in tiger prawn at different exposure concentration. The study was conducted using the aquarium in the laboratory condition. Test material is trichlorfon insecticide and test animal is post larvae of tiger prawn. Treatments were 0.0037 mg/L, 0.0110 mg/L, and 0.0183 mg/L of trichlorfon insecticide by dissolved in water on 20 ppt. Shrimp and water sample were extracted then identified liquid gas chromatography. The results of the experiment shohwed that uptake of trichlorfon insecticide is not different at 0.0110 mg/L and 0.0183 mg/L and both are different with 0.0037 mg/L with the uptake rate are 0.0049, 0.0088 and 0.0086 mg/kg/h at 0.0037 mg/L, 0.0110 mg/L, and 0.0183 mg/L, respectively. Bioconcentration ratio of trichlorfon in tiger prawn were decreasing while treatment concentration was increasing, that are 2.4545, 1.6132, and 1.3373 at the treatment 0.0037 mg/L, 0.0110 mg/L, 0.0183 mg/L, respectively.
KAJIAN ASPEK FISIKA, KIMIA, DAN BIOLOGI PERAIRAN SITU RAWABEBEK, KARAWANG, DALAM RANGKA PENGELOLAAN PERIKANAN BERBASIS BUDI DAYA
Authors: Gunadi Bambang , Wardoyo Supriyono Eko
Published: November 2016

Penelitian tentang aspek-aspek fisika, kimia, dan biologi perairan bekas galian pasir telah dilakukan di Situ Rawabebek Kabupaten Karawang. Tujuan penelitian adalah untuk mendapatkan data dasar bagi penyusunan model pengelolaan perikanan di perairan bekas galian pasir berdasarkan prinsip perikanan berbasis budi daya (culture-based fisheries, CBF). Hasil pengamatan menunjukkan bahwa fluktuasi air di Situ Rawabebek mencapai hingga 1,90 m dan sangat dipengaruhi oleh ketinggian air Sungai Citarum. Nilai semua parameter kualitas air berada dalam kisaran yang layak untuk mendukung kehidupan ikan sementara kadar logam berat berada dalam ambang aman untuk kehidupan organisme akuatik termasuk ikan dan kesehatan manusia. Indeks keragaman plankton (Indeks Shanon-Wiener) pada setiap stasiun dan musim pengamatan berkisar antara 3,95—4,52 yang berarti bahwa komunitas plankton di Situ Rawabebek stabil dan perairannya dalam kondisi belum tercemar. Jenis ikan yang teramati untuk mengetahui pola reproduksinya di Situ Rawabebek antara lain lalawak (Puntius bramoides), paray (Rasbora argyrotaenia), dan seren (Cyclocheilichthys apogon) dengan tingkat Indeks Kematangan Gonad (IKG) masing-masing 3,43%; 12,82%; dan 3,95%. Dari analisis terhadap kondisi fisika, kimia, dan biologinya disimpulkan bahwa perairan bekas galian pasir Situ Rawabebek cukup layak untuk pengembangan perikanan berbasis budi daya.A study on the physical, chemical, and biological aspects of the abandoned sand mining reservoir was conducted in Rawabebek Reservoir (Karawang Regency, West Java). This study aimed to develop a model of fisheries management in the reservoir based on the culture based fisheries (CBF) system. The study showed that the fluctuation of water level in the Rawabebek Reservoir was monitored up to 1.90 m and highly influenced by the water level of Citarum River. The average value of all water quality parameters and heavy metals were in the suitable range for aquatic organism, fish and human health. The diversity index of plankton (Shanon-Wiener Index) at each station and sampling time observed, were ranged between 3.95 to 4.52 implied that the plankton community in the Rawabebek Reservoir was in the stable condition with no water pollution. Three fish species were observed for reproduction pattern in the Rawabebek Reservoir namely lalawak (Puntius bramoides), paray (Rasbora argyrotaenia), and seren (Cyclocheilichthys apogon) with the Gonadosomatic Index (GSI) were 3.43%, 12.82%, and 3.95%, respectively. Due to those physical, chemical and biological aspects, it was concluded that Rawabebek Reservoir was suitable for culture based fisheries (CBF) management system.
RADE-OFFS DAN COST OF PLASTICITY SIFAT PERTUMBUHAN DAN REPRODUKSI PADA PERSILANGAN UDANG GALAH (Macrobrachium rosenbergii) DALAM SALINITAS BERBEDA
Authors: Hadie Wartono , Kusmini Irin Iriana , Hadie Lies Emmawati
Published: November 2016

Penelitian dilakukan untuk mengevaluasi pengaruh salinitas pada karakter pertumbuhan dan reproduksi dalam bentuk trade-offs dan cost of plasticity. Benih udang galah dengan bobot 0,01 ± 0,012 g dipelihara pada tiga level salinitas 0‰, 10‰, dan 15‰ dengan tiga ulangan. Sembilan persilangan diperoleh dari perkawinan antar dan dalam strain. Hasil penelitian menunjukkan bahwa pada salinitas 10‰, udang memperlambat pertumbuhan sebesar 16,4% dan pada salinitas 15‰ memperlambat pertumbuhan 34,5%. Trade-offs terjadi dengan menurunkan fekunditas sebesar 0,47% pada salinitas 10‰, dan sebesar 18,73% pada salinitas 15‰. Sintasan udang mengalami penurunan sebesar 33,04% pada salainitas 10‰, dan 41,99% pada salinitas 15‰. Pertumbuhan udang terbaik terjadi pada salinitas 0‰ dengan rataan bobot mencapai 25,16 g, sintasan sebesar 63,17%, dan fekunditas berjumlah 23.384 butir telur.Research aimed to evaluated the effects of growth and reproduction trait in salinity expressed on the trade-offs and cost of plasticity. Giant prawn juvenile 0.01 ± 0.012 g of body weight were reared at three different salinities level i.e. 0‰, 10‰, and 15‰ with three replications. Nine crosses strain were obtained from cross breeding between and within strain. Result of research indicated that salinity of 10‰, prawn slower the growth equal to 16.4% and at salinity of 15‰ slower the growth up to 34.5%. Trade-offs happened by decreasing fecundity equal to 0.47% and 18.73% at salinity 10‰ and 15‰ respectively. Decreased of survival rate were 33.04% and 41.99% at salinity 10‰ and 15‰ respectively. The best performance is that salinity of 0‰ are 25.16 g, 63.17%, and 23,384 eggs for the body weight, survival rate, and fecundity respectively.
EFEKTIVITAS ANTIBIOTIKA DAN VAKSIN DALAM PENANGGULANGAN PENYAKIT STREPTOCOCCOSIS PADA IKAN NILA (Oreochromis niloticus)
Authors: Supriyadi Hambali , Taukhid Taukhid , Widiyati Ani , Sugiani Desy
Published: November 2016

Penelitian dengan tujuan untuk mengetahui antibiotik yang efektif untuk pengobatan penyakit streptococcosis, serta mendapatkan cara pencegahan penyakit secara biologis yaitu melalui penggunaan vaksin telah dilakukan di Laboratorium Riset kesehatan Ikan Pasar Minggu. Tiga jenis antibiotika yaitu Neomycin, Oxytetracyclin, dan Enrofloxacin diuji efektivitasnya terhadap 4 isolat bakteri Streptococcus iniae yaitu Y2N7, Y2N9, GM2.4, dan S1N8 melalui uji zona hambatan dan konsentrasi hambat minimum (MIC). Uji imunogenitas diuji dengan cara pembuatan vaksin dari isolat yang digunakan yang kemudian dievaluasi level titer antibodi yang diproduksi. Hasil penelitian menunjukkan bahwa enrofloxacin merupakan antibiotik yang efektif terhadap semua isolat yang diuji, sedangkan neomycin efektif hanya untuk isolat Y2N7. Isolat GM2.4 relatif memiliki sifat immunogenitas lebih baik dibanding dengan isolat uji lainnya.Research with the aims to evaluate the effectiveness of several antibiotics against 4 (four) streptococcus iniae isolates, and evaluation of immunogecity of those isolate to be used for disease control (vaccine) have been conducted at Fish Health Research Laboratory Pasar Minggu. The effectiveness of three antibiotics namely Neomycin, Oxytetracyclin, and Enrofloxacin have been tested against 4 (four) isolates Y2N7, Y2N9, GM2.4, and S1N8. The immunogenicity of those isolates were also tested by developing vaccine and evaluated through the production of antibody titer level. The results indicated that enrofloxacin was effective against all isolates tested, meanwhile neomycin only effective against isolate Y2N7. Isolate of GM2.4 was relatively immunogenic as compared to the other isolates.
Penapisan Bakteri yang Diisolasi dari Tambak Udang sebagai Kandidat Probiotik pada Budi daya Udang Windu, Penaeus monodon
Authors: Muliani Muliani , Nurbaya Nurbaya , Atmomarsono Muharijadi
Published: November 2016

Penelitian ini bertujuan mendapatkan bakteri probiotik untuk budi daya udang windu P. monodon. Penelitian meliputi beberapa tahapan yaitu (1) isolasi bakteri dari tambak udang; (2) uji daya hambat terhadap Vibrio  harveyi; (3) karakterisasi secara fisiologi dan biokimia; (4) pertumbuhan bakteri pada beberapa konsentrasi NaCl; (5) pertumbuhan bakteri pada beberapa tingkat salinitas; (6) uji patogenisitas bakteri terhadap pascalarva udang windu; (7) uji tantang dengan V. harveyi dalam wadah pemeliharaan pascalarva udang windu; dan (8) analisis gen 16S-rRNA bakteri yang diisolasi dari tambak. Sedikitnya 14 isolat dari 2.228 isolat bakteri yang diisolasi dari tambak, potensial dijadikan probiotik pada budi daya udang windu. Sintasan udang windu tertinggi pada perlakuan yang menggunakan isolat BN2067. Isolat BT950 dan BT95 paling potensial menghambat pertumbuhan V. harveyi baik secara In vitro maupun In vivo. Hasil analisis gen 16Sr-RNA menunjukkan bahwa BT950 dan BT951 termasuk dalam kelompok Brevibacillus sp., sedangkan BN2067 termasuk dalam kelompok Vibrio vulnificus CMCP6 chr.This experiment was aimed for finding-out probiotic bacteria on tiger shrimp P. monodon culture. The research included several steps i.e. 1) isolation of bacteria from tiger shrimp pond; 2) inhibition test of  bacteria against V. harveyi; 3) biochemical and physiological characterization; 4) growth of bacteria at different concentration of NaCl; (5) growth of bacteria at different salinities; (6) pathogenicity test of bacteria to tiger shrimp post larvae, (7) challenge test of bacteria against V. harveyi in tiger shrimp culture media; (8) 16S-rRNA gene analysis of  bacteria isolated from shrimp pond. Fourteen isolates of 2,228 isolates of bacteria isolated from tiger shrimp pond were potential for probiotic bacteria on tiger shrimp culture. The highest survival rate of tiger shrimp was obtained from those treated with BN2067 isolate. The potential isolates to inhibit V. harveyi both In vivo and In vitro assay were BT950 and BT951. Based on 16S-rRNA gene analysis, BT950 and BT951 isolates are considered to be Brevibacillus laterosporus, while BN2067 is considered to be Vibrio vulnificus CMCP6 chr.
SUBTITUSI TEPUNG IKAN DENGAN TEPUNG KEONG MAS (Pomacea sp.) DALAM PAKAN PEMBESARAN IKAN KERAPU MACAN (Epinephelus fuscoguttatus)
Authors: Usman Usman , Syah Rachman , Kamaruddin Kamaruddin
Published: November 2016

Penelitian ini dilakukan untuk mendapatkan informasi tentang dosis optimum subtitusi tepung ikan dengan tepung keong mas dalam pakan pembesaran ikan kerapu macan. Ikan uji yang digunakan berupa gelondongan ikan kerapu macan berukuran bobot rata-rata 27,1 ± 1,38 g ditebar dalam keramba jaring apung ukuran 1 x 1 x 2 m3 dengan kepadatan 16 ekor/keramba. Perlakuan yang dicobakan adalah dosis tepung keong mas (GSM) dalam pakan yaitu: 0% (GSM0), 10% (GSM10), 20% (GSM20), 30% (GSM30), dan 40% (GSM40) dengan menurunkan kadar tepung ikan pakan. Unit penelitian diset dengan rancangan acak lengkap. Selama pemeliharaan, ikan diberi pakan uji secara satiasi selama 140 hari. Hasil penelitian menunjukkan bahwa ikan yang diberi pakan dengan kandungan tepung keong mas 0%—30% memiliki nilai laju pertumbuhan spesifik, pertambahan bobot, efisiensi pakan, efisiensi protein, dan retensi protein yang relatif sama (P>0,05), namun ikan yang diberi pakan dengan kandungan tepung keong mas sebanyak 40% memiliki nilai peubah tersebut yang berbeda nyata (P<0,05) lebih rendah dibandingkan yang diberi pakan dengan kandungan tepung keong mas 0%—10%. Konsumsi pakan dan sintasan ikan relatif sama di antara perlakuan (P>0,05). Berdasarkan hasil penelitian ini, maka tepung keong mas dapat digunakan hingga 30% dalam formulasi pakan ikan kerapu macan.This research was conducted to examine the effects of partially substitution of fish meal (FM) in the diets with golden snail meal (GSM) on growth performance of tiger grouper, Epinephelus fuscoguttatus. Fifteen net cages of 1 x 1 x 2 m3, each containing 16 tiger groupers with average initial weight of 27.1 ± 1.38 g, were set up randomly in seawater. Five isoprotein and isocaloric diets were formulated to contain 43.5% FM without GSM as control diet (GSM0); 10% GSM + 34.2% FM (GSM10); 20% GSM + 24.9% FM (GSM20), 30% GSM + 15.6% FM (GSM30); and 40% GSM + 6.3% FM (GSM40). The fish were fed twice daily to satiation for 140 days. The fish fed the diet containing 0%—30% GSM had not significantly different (P>0.05) specific growth rate, weight gain, feed efficiency, protein efficiency, and protein retention. However the fish fed the diet containing 40%GSM had significantly lower (P>0.05) value of the variables compared to the fish feed the diet containing 0%—10% GSM. Total feed intake and survival rate did not differ significantly (P>0.05) among treatments. This result suggests that GSM could be only used up to 30% to replace fish meal in the tiger grouper diets.
EVALUASI KERAGAMAN GENETIK IKAN KANCRA DENGAN MENGGUNAKAN MARKER Mt DNA D-loop DAN RANDOM AMPLIFIED POLYMORPHISM DNA (RAPD)
Authors: Nugroho Estu , Subagja Jojo , Asih Sidi , Kurniasih Titin
Published: November 2016

Variasi genetik ikan kancra yang dikoleksi dari daerah Kuningan (Pesawahan, Gandasoli, dan Ragawacana) dan Sumedang di Jawa Barat telah diteliti dengan menggunakan polimorfisme Mitokondria DNA D-loop dan Random Amplified Polymorphism DNA (RAPD). Berdasarkan analisis Mt DNA tidak terdapat perbedaan yang nyata antara ras ikan kancra dari empat lokasi tersebut. Sedangkan analisis RAPD menunjukkan perbedaan yang nyata. Panjang daerah Mt DNA D-loop ikan kancra berkisar antara 700--800 bp. Satu komposit haplotype terdeteksi dengan menggunakan 4 enzim restriksi yaitu Rsa I, Nde II, Taq I, dan Sac I pada sekuens D-loop. Dua dari 20 primer RAPD menunjukkan perbedaan yang nyata di antara keempat populasi ikan kancra. Jarak genetik berdasarkan polimorfisme dua primer tersebut adalah 0,349.The aim of this research was to evaluate genetic variability of Tor soro. The genetic variability of Tor soro collected from Kuningan (Pesawahan, Gandasoli, and Ragawacana) and Sumedang, West Java were examined using polymorphism of the mitochondria DNA (MtDNA) D-loop and RAPD markers. Based on MtDNA D-loop analysis, there was no significant different among collection. The length size of MtDNA D-loop region was approximately 700--800 bp. A composite haplotype was detected using four endonuclease i.e. Rsa I, Nde II, Taq I, and Sac I. Two of 20 RAPD primers showed significantly different among collections. Average genetic distance based on the polymorphism of two primers was 0.349.