bluuebunny/crossref_metadata_2025 huggingface dataset:
Аналіз експлуатації пневматичних шин в зоні бойових дій
Authors: Pochechun Alexander , Dorofeev Nikolai , Fomin Roman
Published: March 2020

В даній статті проведений аналіз експлуатації пневматичних шин у складі зразків бойових колісних машин та військової автомобільної техніки, які залучені до проведення операції на сході країни. Вказані основні проблеми та надані пропозиції щодо їх вирішення.
Case Report of Urinary Schistosomiasis in a Returned Traveler in Korea
Authors: Lee Yangkyu , Song Hyun Beom , Jung Bong-Kwang , Choe Gheeyoung , Choi Min-Ho
Published: March 2020

A 23-year-old Korean woman with a residence history in Kenya and Malawi for about 2 years presented with gross hematuria for 1 month. Blood tests were within normal range except eosinophilia. Asymmetrically diffuse wall thickening and calcification were observed at the urinary bladder on CT. Multiple erythematous nodular lesions were observed in the cystoscopy and transurethral resection was done. Numerous eggs of Schistosoma haematobium with granulomatous inflammation were observed in the submucosal layer of the bladder. The patient was diagnosed with schistosomiasis-related cystitis and treated with praziquantel (40 mg/kg/day) twice before and after transurethral resection. This case suggests that S. haematobium infection should be considered as a cause of hematuria in Korea when the patient had a history of traveling endemic areas of schistosomiasis.
Pemberdayaan metakognitif mahasiswa melalui model pembelajaran jinemam
Authors: Setiawan Dwi Candra , Setiawan Deni
Published: March 2020

The implementation model of learning that empowers students metacognitive has not run optimally. The jinemam learning model is a learning model developed to empower students' metacognitive abilities. This study aims to determine the effect of jinemam on students' metacognitive. The research used was a quasi-experimental study, where the sample is 2016 batch students of Biology Education. Class A as an experimental class and class B as a control class. The instruments used were syllabus, SLP (Semester Lecture Plan), essay tests and metacognitive assessment rubrics. Research data in the form of quantitative data obtained from the pretest and posttest scores and metacognitive assessment rubric scores. Analysis of research data was performed with the ANACOVA test through SPSS 22 software. The results showed that there was an influence of the jinemam learning model on the metacognitive abilities of students (p <0.05). Thus, the conclusion of this research is the learning model of jinemam influences the students' metacognitive abilities.
Keberagaman jenis jamur makroskopis di kawasan wisata sumber ubalan kediri
Authors: Zunaidah Farida Nurlaila , Sulistiyowati Tutut Indah
Published: March 2020

The data collection of mushroom species found in Ubalan source tourism areas needs to be done as a source of data on the diversity of mushroom species as decomposers of organic material. This type of research is a descriptive exploratory study with methods. roaming modified with VES (Visual Encounter Survey). The research instrument used was a logbook, observation sheet, and the key book of determination. All mushrooms were collected in a collection bottle and identified by using a macro mushroom determination key in the Botany Laboratory of the Nusantara University PGRI Kediri. The data of this research are the types of macroscopic fungi found during observation. The data analysis technique used is descriptive qualitative. The results showed that there were twelve identified fungal families, namely Auriculariae, Tricholomataceae, Ganodermataceae, Amanitaceae, Hymenogastraceae, Marasmiaceae, Russulaceae, Agaricaceae, Amanithaceae, Mycenaceae, Polyporaceae and Parmeliaceae. The conclusions of this study indicate that the area of ​​the tourist area of ​​the Ubalan has a variety of macroscopic fungi.
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE MAKE A MATCH DALAM MENINGKATKAN HASIL BELAJAR SISWA PADA MATA PELAJARAN IPA DI KELAS IV SDK NANGAKEO KECAMATAN NANGAPANDA KABUPATEN ENDE
Authors: Mete Yeni -
Published: March 2020

Tujuan penelitian ini adalah: 1) Untuk mengetahui efektifitas penerapan model pembelajaran kooperatif tipe Make A Match pada pembelajaran IPA materi struktur daun tumbuhan dan fungsinya di SDK Nangakeo Kecamatan Nangapanda  Kabupaten Ende. 2) Untuk mengetahui hasil belajar peserta didik setelah menerapkan model pembelajaran kooperatif tipe Make A Match pada pembelajaran IPA materi struktur daun tumbuhan dan fungsinya di SDK Nangakeo  Kecamatan Nangapanda Kabupaten Ende. Pendekatan yang di gunakan dalam penelitian ini adalah pendekatan deskriptif kualitatif.Pengumpulan data menggunakan teknik observasi, wawancara, tes hasil belajar, dokumentasi, Teknik analisis data menggunakan teknik analisis deskriptif dan instrumen tes hasil belajar. Hasil penelitian menunjukan bahwa pembelajaran siklus I rata-rata 58,10 dengan persentase ketuntasan 31,57% dan pada hasil pembelajaran siklus II mengalami peningkatan hingga 84,94 dengan ketuntasan 100%. Pembelajaran IPA dengan menggunakan model pembelajaran kooperatif tipe Make A Match terdapat empat tahapan yaitu perencanaan, ptindakan, pengamatan dan refleksi. Penerapan model pembelajaran kooperatif tipe Make A Match dapat meningkatkan hasil belajar peserta didik.
UPAYA MENINGKATKAN KEMAMPUAN BERPIKIR TINGKAT TINGGI DENGAN MENGGUNAKAN PENDEKATAN OPEN-ENDED
Authors: Hamimah Hamimah , Kenedi Ary Kiswanto , Zuryanty Zuryanty
Published: March 2020

The purpose of this study was to determine the increase in the higher-order thinking skills of PGSD students by using an open-ended approach. The study is a quasi-experimental research with a non-equivalent control group design conducted in the PGSD UNP department. The results of this study stated that there were differences in the average N-Gain of HOTS PGSD students in the basic social studies concept students who learned using the open-ended approach with students who learned to use the conventional approach. This research proves that there is a significant increase in students learning to use the open-ended approach with students learning to use the conventional approach. The implications of this study can be used as an effort to improve student HOTS.
‘Even Seneca hymselfe to speke in englysh’: John Studley's Hippolytus and Agamemnon
Authors: Valls-Russell Janice
Published: March 2020

John Studley translated four of Seneca's plays into English: Agamemnon, Medea, Hippolytus (as Phaedra was known in the Renaissance), and Hercules Oetaeus, and these were later included in Thomas Newton's collection Seneca His Tenne Tragedies, 1581. This essay focuses on Studley's Hippolytus, with intersecting discussions of his Agamemnon. It looks at the Latin texts and commentaries Studley may have been using, and shows that his translation incorporates elements of intertextuality and imitation that expand on Seneca's own engagement with Ovid. Tracing how Seneca's and Studley's characters find models and counter-models in other mythological figures, the discussion draws attention to Studley's foregrounding of generational confusion, and his handling of gender.
Eclectism and Syncretism in Gascoigne and Kinwelmersh's Jocasta
Authors: Peyré Yves
Published: March 2020

George Gascoigne and Francis Kinwelmersh's Jocasta (printed 1573) does not merely adapt Lodovico Dolce's Giocasta. It also draws on a variety of texts, classical and vernacular, including common emblems on which the dumb shows are based, and Senecan themes and phrasing. Some elements that do not derive from Dolce might suggest that Gascoigne and Kinwelmersh also consulted at least one of the three Latin translations of Euripides' Phoenician Women, possibly Collinus'. Gascoigne and Kinwelmersh's borrowings were consistently made to conform their work to their intellectual leanings, their ideological outlook, and their artistic design. At the same time, the Euripidean themes that were brought into their play through Dolce and, it seems, some other version of Phoenician Women, may have sown the seeds of new ideas about the nature of tragedy.
Tragic Time in Ben Jonson's Sejanus and Catiline
Authors: Grek Leon , Kachuck Aaron
Published: March 2020

This essay explores Ben Jonson's treatment of dramatic and historical time in his Roman tragedies, Sejanus His Fall (1603) and Catiline His Conspiracy (1611). Although the plays conspicuously fail to respect neoclassical strictures about the unity of time, both reproduce the temporal compression of Greek and Roman tragedy through their sustained intertextual engagements with a wide range of Roman source texts, including, above all, Lucan's Bellum Civile, and the works of the late antique court poet Claudian. The ultimate effect of these quotations, allusions, and reminiscences is to transform Jonson's dramas of early imperial corruption and late Republican civil conflict into proleptic visions of Roman history as a phantasmagoria of unceasing political violence, extending to the ends of both classical antiquity and classical literature.
Comparison of the Efficiency of BLUP and GBLUP in Genomic Prediction of Immune Traits in Chickens
Authors: Zhang Jin , Wang Jie , Li Qinghe , Wang Qiao , Wen Jie , Zhao Guiping
Published: March 2020

Poultry diseases pose a large threat to poultry production. Selection to improve immune traits is a feasible way to prevent and control avian diseases. The objective of this study was to investigate the efficiency of estimation of genetic parameters for antibody response to avian influenza virus (Ab-AIV), antibody response to Newcastle disease virus (Ab-NDV), sheep red blood cell antibody titer (SRBC), the ratio of heterophils to lymphocytes (H/L), immunoglobulin G (IgG), the spleen immune index (SII), thymus immune index (TII), thymus weight at 100 d (TW) and the spleen weight at 100 d (SW) in Beijing oil chickens, by using the best linear unbiased prediction (BLUP) method and genomic best linear unbiased prediction (GBLUP) method. The phenotypic data used in the two methods were the same and were from 519 individuals. With the BLUP model, Ab-AIV, Ab-NDV, SRBC, H/L, IgG, TII, and TW had low heritability ranging from 0.000 to 0.281, whereas SII and SW had high heritability of 0.631 and 0.573. With the GBLUP model, all individuals were genotyped with Illumina 60K SNP chips, and Ab-AIV, Ab-NDV, SRBC, H/L and IgG had low heritability ranging from 0.000 to 0.266, whereas SII, TII, TW and SW had moderate heritability ranging from 0.300 to 0.472. We compared the prediction accuracy obtained from BLUP and GBLUP through 50 time 5-fold cross-validation (CV), and the results indicated that BLUP provided a slightly higher accuracy of prediction than GBLUP in this population.
Positron Impact Excitation of the nS States of Atomic Hydrogen
Authors: Bhatia Anand K.
Published: March 2020

The excitation cross sections of the nS states, n = 2 to 6, of atomic hydrogen at various incident positron energies (10.23 to 300 eV) were calculated using the variational polarized-orbital method. Nine partial waves were used to obtain converged cross sections. The present results should be useful for comparison with results obtained from other theories and approximations. The positron-impact cross section was found to be higher than the electron-impact cross sections. Experimental and other theoretical results are discussed. The threshold law of excitation is discussed and the cross sections in this region were seen to obey the threshold law proportional to ( ln k f ) − 2 . Cross sections were calculated in the Born approximation also and compared to those obtained using the variational polarized orbital method.
Characterization of Chitosan/Hyaluronan Complex Coacervates Assembled by Varying Polymers Weight Ratio and Chitosan Physical-Chemical Composition
Authors: Furlani Franco , Donati Ivan , Marsich Eleonora , Sacco Pasquale
Published: March 2020

Herein, we synthetized and characterized polysaccharide-based complex coacervates starting from two water-soluble biopolymers, i.e., hydrochloride chitosans and sodium hyaluronan. We used chitosans encompassing a range of molecular weights from 30,000 to 400,000 and showing different fraction of acetylated units (i.e., FA = 0.16, 0.46, and 0.63). This set of chitosans was mixed with a low molecular weight hyaluronan to promote electrostatic interactions. Resulting colloids were analyzed in terms of size, polydispersity and surface charge by Dynamic Light Scattering. The weight ratio between the two polyelectrolytes was studied as additional parameter influencing the liquid-liquid phase separation. Main results include the following: the polymers weight ratio was fundamental in dictating the colloids surface charge, whereas chitosan physical-chemical features influenced the dimension and homogeneity of colloids. This contribution presents additional understanding of the complex coacervation between these two oppositely charged polysaccharides, with the potential translation of present system in food and biomedical sectors.
The Role of Field Training in STEM Education: Theoretical and Practical Limitations of Scalability
Authors: Nepeina Kseniia , Istomina Natalia , Bykova Olga
Published: March 2020

In this article, we consider the features of the perception of student information in science, technology, engineering, and mathematics (STEM) education, in order to draw the attention of researchers to the topic of learning in practice through field training. The article shows the results of these studies in Russia and the Commonwealth of Independent States (CIS countries: Armenia, Azerbaijan, Belarus, Kazakhstan, Kyrgyzstan, Moldova, Russia, Tajikistan, and Uzbekistan, as an example) to reflect the global trends. For this purpose, we examined the expectations of students in Russia and the CIS countries from training related to lectures and field training. We created a questionnaire and distributed it in three Moscow-based universities (Moscow State University of Geodesy and Cartography—MIIGAiK, Moscow Aviation Institute—MAI, and Moscow City University—MCU). Our key assumption is that field practices in Russian universities are qualitatively different from the phenomenon described in European literature, where digital or remote field practices have already emerged. The results obtained through the survey show the tendency of students’ perceptions to fulfill practical duties (in a laboratory with instruments of field training) in STEM education.
Genetic Variation in Response to N, P, or K Deprivation in Baby Leaf Lettuce
Authors: Simko Ivan
Published: March 2020

Lettuce harvested at the baby leaf stage is a popular component of mixed salads in ready-to-use packages. Little is known, however, about response of baby leaf lettuce to nitrogen (N), phosphorus (P), and potassium (K) fertilization. Eight lettuce accessions were subjected to five fertilization treatments to investigate genetic differences in reaction to N, P, and K fertilization. The control treatment provided optimal levels of macronutrients for plant growth, while other treatments deprived plants of either N, P, or K. Potassium deprivation had no obvious effect on plant weight or composition, apart from substantially decreased potassium content. Nitrogen and phosphorus deprivations, however, extensively decreased fresh weight and affected plant composition. Phosphorus and nitrogen deprivation considerably increased anthocyanin content in red-colored accessions, but anthocyanin was decreased in dark green-colored accessions, indicating differences in regulation of anthocyanin biosynthesis. Correlations between fresh weight, chlorophyll, anthocyanin, nitrogen, phosphorus, and potassium content were substantially affected by selection of datasets used for analyses; some relationships were revealed when analyzed separately by individual treatments, while others were more likely to be detected when analyzed by individual accessions. Absolute (ΔABS) and relative (2ΔREL) parameters described in this study were suitable for detecting over- and underperforming accessions. The ΔABS identified the absolute Lb-fold (logarithm to the base of 2, binary logarithm) change in performance of an accession in a treatment as compared to its performance in control conditions. The 2ΔREL parameter showed relative Lb-fold change for an accession as compared to the overall mean of ΔABS values of all accessions tested in control and treatment conditions.
Food Industry Donations to Academic Programs: A Cross-Sectional Examination of the Extent of Publicly Available Data
Authors: A. Bragg Marie , Elbel Brian , Nestle Marion
Published: March 2020

No studies have documented the prevalence of the food industry’s funding of academic programs, which is problematic because such funding can create conflicts of interest in research and clinical practice. We aimed to quantify the publicly available information on the food industry’s donations to academic programs by documenting the amount of donations given over time, categorizing the types of academic programs that receive food industry donations, cataloguing the source of the donation information, and identifying any stated reasons for donations. Researchers cataloged online data from publicly available sources (e.g., official press releases, news articles, tax documents) on the food industry’s donations to academic programs from 2000 to 2016. Companies included 26 food and beverage corporations from the 2016 Fortune 500 list in the United States. Researchers recorded the: (1) monetary value of the donations; (2) years the donations were distributed; (3) the name and type of recipient; (4) source of donation information; and (5) reasons for donations. Adjusting for inflation, we identified $366 million in food industry donations (N = 3274) to academic programs. Universities received 45.2% (n = 1480) of donations but accounted for 67.9% of total dollars given in the sample. Community colleges, schools (i.e., preschool, elementary, middle, and high schools), and academic nonprofits, institutes, foundations, and research hospitals collectively received 54.8% of the donations, but made up less than one-third of the monetary value of donations. Half of the donations (49.0%) did not include a stated reason for the donation. In our sample, donations grew from $3 million in 2000 to $24 million in 2016. Food companies in our sample donated millions of dollars to universities and other academic programs but disclosed little information on the purpose of the donations. Achieving transparency in donation practices may only be possible if federal policies begin to require disclosures or if companies voluntarily disclose information.
The Effects of Active Self-Correction on Postural Control in Girls with Adolescent Idiopathic Scoliosis: The Role of an Additional Mental Task
Authors: Piątek Elżbieta , Kuczyński Michał , Ostrowska Bożena
Published: March 2020

Due to balance deficits that accompany adolescent idiopathic scoliosis (AIS), the potential interaction between activities of daily living and active self-correction movements (ASC) on postural control deserves particular attention. Our purpose was to assess the effects of ASC movements with or without a secondary mental task on postural control in twenty-five girls with AIS. It is a quasi-experimental within-subject design with repeated measures ANOVA. They were measured in four 20-s quiet standing trials on a force plate: no task, ASC, Stroop test, and both. Based on the center-of-pressure (COP) recordings, the COP parameters were computed. The ASC alone had no effect on any of the postural sway measures. Stroop test alone decreased COP speed and increased COP entropy. Performing the ASC movements and Stroop test together increased the COP speed and decreased COP entropy as compared to the baseline data. In conclusion, our results indicate that AIS did not interfere with postural control. The effects of the Stroop test accounted for good capacity of subjects with AIS to take advantage of distracting attentional resources from the posture. However, performing both tasks together exhibited some deficits in postural control, which may suggest the need for therapeutic consultation while engaging in more demanding activities.
Reducing False-Positive Results in Newborn Screening Using Machine Learning
Authors: Peng Gang , Tang Yishuo , Cowan Tina M. , Enns Gregory M. , Zhao Hongyu , Scharfe Curt
Published: March 2020

Newborn screening (NBS) for inborn metabolic disorders is a highly successful public health program that by design is accompanied by false-positive results. Here we trained a Random Forest machine learning classifier on screening data to improve prediction of true and false positives. Data included 39 metabolic analytes detected by tandem mass spectrometry and clinical variables such as gestational age and birth weight. Analytical performance was evaluated for a cohort of 2777 screen positives reported by the California NBS program, which consisted of 235 confirmed cases and 2542 false positives for one of four disorders: glutaric acidemia type 1 (GA-1), methylmalonic acidemia (MMA), ornithine transcarbamylase deficiency (OTCD), and very long-chain acyl-CoA dehydrogenase deficiency (VLCADD). Without changing the sensitivity to detect these disorders in screening, Random Forest-based analysis of all metabolites reduced the number of false positives for GA-1 by 89%, for MMA by 45%, for OTCD by 98%, and for VLCADD by 2%. All primary disease markers and previously reported analytes such as methionine for MMA and OTCD were among the top-ranked analytes. Random Forest’s ability to classify GA-1 false positives was found similar to results obtained using Clinical Laboratory Integrated Reports (CLIR). We developed an online Random Forest tool for interpretive analysis of increasingly complex data from newborn screening.
Wake behind a Compound Wing in Ground Effect
Authors: Jamei Saeed , Maimun Adi , Niazmand Bilandi Rasul , Azwadi Nor , Mancini Simone , Vitiello Luigi , De Carlini Maria
Published: March 2020

Flow structure is a crucial point for the conceptual design of Wing-in-Ground effect (WIG) crafts. In this study, pressure distributions around a compound wing, velocity and the turbulent intensity distribution in the wake area after trailing of the wing, have been investigated numerically. Computational simulations were completed regarding various angles of attack in-ground-effect. Two parts made up the compound wing: The first composed by one rectangular wing in the center, the second composed by a reverse taper wing, consisting of an anhedral angle at the side. A realizable k-ε turbulent model exhibited the flow field in the physical domain about the wing surface. The numerical results of the compound wing were validated using the data provided by wind tunnel tests. The flow structures around the compound wing were compared with that of a rectangular wing for different conditions. It was found that the pressure distribution on the rectangular wing was weaker than at the lower surface for the compound wing. However, the suction effect on the upper surface of the rectangular wing was higher. Also, the velocity defect and the turbulence level in the wake area was greater behind the compound wing.
Study on the Behavior of the Water Temperature Inversion Layer in the Northern East China Sea
Authors: Kim Seong Hyeon , Choi Bok Kyoung , Kim Eung
Published: March 2020

To investigate the behavioral characteristics of the water temperature inversion layer (TIL), we used data (KODC) from areas in the Northern East China Sea from 1995 to 2016. Water temperature and salinity surveys were conducted 8820 casts over 22 years. Of these, 1589 water temperature inversion layers were found, and the probability of occurrence was 18.0%. In the Gageo island, probability of TIL occurrence in winter was 25 times higher than in summer. On the other hand, in the south of Jeju Island, summer values were 3.7 times higher than winter values. A T–S diagram analysis shows the components of the water temperature inversion layers. Yellow Sea Cold Water was mainly found in the winter, while Jeju Warm Currents and Tsushima Warm Currents were found in summer. The correlation between the probability of the occurrence of a monthly water temperature inversion layer and the amount of seawater volume transported into the study area was analyzed. The correlation coefficient was higher than r = 0.8 in parts of southern Jeju Island. On the other hand, the correlation coefficient was r = −0.6 in the Gageo Island. The spatial correlation index for the seawater volume transport and the water temperature inversion layer is presented.
Design of the Depth Controller for a Floating Ocean Seismograph
Authors: Huang Haocai , Zhang Chenyun , Ding Weiwei , Zhu Xinke , Sun Guiqing , Wang Hangzhou
Published: March 2020

Floating ocean seismograph (FOS) is a vertical underwater vehicle used to detect ocean earthquakes by observing P waves at teleseismic distances in the oceans. With the requirements of rising to the surface and transmitting data to the satellite in real time and diving to the desired depth and recording signals, the depth control of FOS needs to be zero overshoot and accurate with fast response. So far, it remains challenging to implement such depth control due to the variation of buoyancy caused by the seawater density varying with the depth. The deeper the water is, the greater the impacts on buoyancy are. To tackle it, a fuzzy sliding mode controller considering the influence of seawater density change is proposed and simulated in MATLAB/SIMULINK based on the variable buoyancy system and state space function of FOS. Compared with proportional-integral-derivative (PID) controller, fuzzy PID controller and sliding mode controller, the simulation results indicate that the proposed controller shows its superiority regardless of the disturbing force. Its advantages include smaller steady-state error, faster response time, smaller system chatter, and well robustness. This proves that the designed fuzzy sliding mode controller is able to meet the working requirements and thus, lays a foundation for FOS application.
Comparison of Numerical Methods for Modeling the Wave Field Effects Generated by Individual Wave Energy Converters and Multiple Converter Wave Farms
Authors: McNatt J. Cameron , Porter Aaron , Ruehl Kelley
Published: March 2020

This numerical study compares the wave field generated by the spectral wave action balance code, SNL-SWAN, to the linear-wave boundary-element method (BEM) code, WAMIT. The objective of this study is to assess the performance of SNL-SWAN for modeling wave field effects produced by individual wave energy converters (WECs) and wave farms comprising multiple WECs by comparing results from SNL-SWAN with those produced by the BEM code WAMIT. BEM codes better model the physics of wave-body interactions and thus simulate a more accurate near-field wave field than spectral codes. In SNL-SWAN, the wave field’s energy extraction is modeled parametrically based on the WEC’s power curve. The comparison between SNL-SWAN and WAMIT is made over a range of incident wave conditions, including short-, medium-, and long-wavelength waves with various amounts of directional spreading, and for three WEC archetypes: a point absorber (PA), a pitching flap (PF) terminator, and a hinged raft (HR) attenuator. Individual WECs and wave farms of five WECs in various configuration were studied with qualitative comparisons made of wave height and spectra at specific locations, and quantitative comparisons of the wave fields over circular arcs around the WECs as a function of radial distance. Results from this numerical study demonstrate that in the near-field, the difference between SNL-SWAN and WAMIT is relatively large (between 20% and 50%), but in the far-field from the array the differences are minimal (between 1% and 5%). The resultant wave field generated by the two different numerical approaches is highly dependent on parameters such as: directional wave spreading, wave reflection or scattering, and the WEC’s power curve.
Experimental Study on the Influence of Machining Conditions on the Quality of Electrical Discharge Machined Surfaces of aluminum alloy Al5052
Authors: Markopoulos Angelos P. , Papazoglou Emmanouil-Lazaros , Karmiris-Obratański Panagiotis
Published: March 2020

Although electrical discharge machining (EDM) is one of the first established non-conventional machining processes, it still finds many applications in the modern industry, due to its capability of machining any electrical conductive material in complex geometries with high dimensional accuracy. The current study presents an experimental investigation of ED machining aluminum alloy Al5052. A full-scale experimental work was carried out, with the pulse current and pulse-on time being the varying machining parameters. The polishing and etching of the perpendicular plane of the machined surfaces was followed by observations and measurements in optical microscope. The material removal rate (MRR), the surface roughness (SR), the average white layer thickness (AWLT), and the heat affected zone (HAZ) micro-hardness were calculated. Through znalysis of variance (ANOVA), conclusions were drawn about the influence of machining conditions on the EDM performances. Finally, semi empirical correlations of MRR and AWLT with the machining parameters were calculated and proposed.
Spontaneous Magnetization and Optical Activity in the Chiral Series {(L-proline)nV[Cr(CN)6]x} (0 < n < 3)
Authors: Rodríguez-García Bárbara , Galan-Mascaros Jose Ramon
Published: March 2020

The incorporation of the natural amino acid L-proline in the synthesis to vanadium-chromium Prussian blue derivatives results in materials exhibiting magnetic ordering including chiral magnetic centers. Although the amorphous nature of these materials makes difficult to assess the structural features of these proline-containing compounds, magnetic and spectroscopic data confirms their multifunctionality. They exhibit high-temperature magnetic ordering (Tc < 255 K) and a circular dichroic signal, representing the molecule-based chiral magnets with the highest ordering temperatures reported to date. In addition, the presence of chiral L-proline (or D-proline) has additional benefits, including higher redox stability and the appearance of magnetic hysteresis. The latter was not observed in the parent compounds, the series of room temperature molecule-based magnets V[Cr(CN)6]x.
Nutrition, Choice and Health-Related Claims
Authors: de-Magistris Tiziana
Published: March 2020

Scientific evidence shows that food consumption is one of the main causes that increases the risk of developing a non-communicable disease (NCD) [...]
Business Strategy, State-Owned Equity and Cost Stickiness: Evidence from Chinese Firms
Authors: Zhong Tingyong , Sun Fangcheng , Zhou Haiyan , Lee Jeoung Yul
Published: March 2020

This paper investigates the relationship between business strategy and cost stickiness under different ownership. Using the data from listed firms in China from 2002 to 2015, we find that first, firms with different strategies exhibit different cost behavior. The cost stickiness of choosing a differentiation strategy is higher than that of choosing a low-cost strategy. Second, management expectations will affect cost stickiness. Optimistic expectations will increase cost stickiness, while pessimistic expectations will reduce cost stickiness. Third, management expectations can adjust the relationship between business strategy and cost stickiness in terms of government-created advantages (GCAs). If management expectations tend to be optimistic, the cost stickiness is higher with a differentiation strategy than with a low-cost strategy. If management expectations tend to be pessimistic, then cost stickiness is higher with a low-cost strategy than with a differentiation strategy. Finally, the state-owned equity affects the extent of the effect of a differentiation strategy on cost stickiness. State-owned firms, which receive more GCAs than non-state-owned firms, have stronger cost stickiness than non-state-owned firms, even if both categories of firms use more differentiation strategy.
Sustainability of Analyst Recommendations in Multiple Lead Underwriter IPOs
Authors: Ryoo Juyoun , Lee Cheolwoo , Jeon Jin Q
Published: March 2020

Recently, a new organizational form of syndicate—multiple lead underwriter (MLU) initial public offerings (IPOs)—has emerged in IPOs. In addition to the increased deal complexity, lead underwriters in MLU IPOs face a new competition between them after underwriter selection, which is not present in single lead underwriter (SLU) IPOs. It is therefore questionable whether recommendations by analysts from lead underwriters of the MLU IPOs are as sustainable as those of the SLU IPOs. We examine IPO recommendations to capture how this new syndicate structure affects analyst behavior in terms of analyst optimism and investment value. In contrast to the popular conflict of interest perspective, our findings point to the notion that the new syndicate structure suppresses bias in recommendations and that reputation upholding incentive dominates pressure from competition. MLU-affiliated analysts are not more optimistic and provide more informative research coverage whose informativeness, however, fades away shortly after the recommendation releases. Our findings overall indicate the existence of sustainability in the MLU IPO recommendations.
Low-Energy Electron Irradiation Efficiently Inactivates the Gram-Negative Pathogen Rodentibacter pneumotropicus—A New Method for the Generation of Bacterial Vaccines with Increased Efficacy
Authors: Fertey Jasmin , Bayer Lea , Kähl Sophie , Haji Rukiya M. , Burger-Kentischer Anke , Thoma Martin , Standfest Bastian , Schönfelder Jessy , Portillo Casado Javier , Rögner Frank-Holm , Baums Christoph Georg , Grunwald Thomas , Ulbert Sebastian
Published: March 2020

Bacterial pathogens cause severe infections worldwide in livestock and in humans, and antibiotic resistance further increases the importance of prophylactic vaccines. Inactivated bacterial vaccines (bacterins) are usually produced via incubation of the pathogen with chemicals such as formaldehyde, which is time consuming and may cause loss of immunogenicity due to the modification of structural components. We evaluated low-energy electron irradiation (LEEI) as an alternative method to generate a bacterin. Rodentibacter pneumotropicus, an invasive Gram-negative murine pathogen, was inactivated with LEEI and formaldehyde. LEEI resulted in high antigen conservation, and LPS activity was significantly better maintained when compared with formaldehyde treatment. Immunization of mice with LEEI-inactivated R. pneumotropicus elicited a strong immune response with no detectable bacterial burden upon sublethal challenge. The results of this study suggest the inactivation of bacteria with LEEI as an alternative, fast and efficient method to generate bacterial vaccines with increased efficacy.
Engineered Recombinant Single Chain Variable Fragment of Monoclonal Antibody Provides Protection to Chickens Infected with H9N2 Avian Influenza
Authors: Lukosaityte Deimante , Sadeyen Jean-Remy , Shrestha Angita , Sealy Joshua E. , Bhat Sushant , Chang Pengxiang , Digard Paul , Iqbal Munir
Published: March 2020

Passive immunisation with neutralising antibodies can be a potent therapeutic strategy if used pre- or post-exposure to a variety of pathogens. Herein, we investigated whether recombinant monoclonal antibodies (mAbs) could be used to protect chickens against avian influenza. Avian influenza viruses impose a significant economic burden on the poultry industry and pose a zoonotic infection risk for public health worldwide. Traditional control measures including vaccination do not provide rapid protection from disease, highlighting the need for alternative disease mitigation measures. In this study, previously generated neutralizing anti-H9N2 virus monoclonal antibodies were converted to single-chain variable fragment antibodies (scFvs). These recombinant scFv antibodies were produced in insect cell cultures and the preparations retained neutralization capacity against an H9N2 virus in vitro. To evaluate recombinant scFv antibody efficacy in vivo, chickens were passively immunized with scFvs one day before, and for seven days after virus challenge. Groups receiving scFv treatment showed partial virus load reductions measured by plaque assays and decreased disease manifestation. These results indicate that antibody therapy could reduce clinical disease and shedding of avian influenza virus in infected chicken flocks.
Perlindungan Hak Peserta Program Magang di Hotel XYZ Kota Bandung
Authors: Danurdara Ananta Budhi
Published: March 2020

Apprenticeship program is one part of the laborrs force in Indonesia, apprentices basically get the same protection with other labors, but in Indonesia there are many industries that do not provide rights that should be given to participants of the internship program. The purpose of this study was to determine, assess, examine and analyze how the legal protection for participants in apprenticeship programs and practices to determine, assess, examine and analyze an obstacle in the implementation of the apprenticeship program. Study used is descriptive nature Analytical. Secondary data was obtained from the research literature and reinforced with Primary Data obtained from interviews daan questionnaire. Stages of the research literature research and field research. Techniques of data collection are through literature study and interviews. Methods of data analysis using Likert method. The results showed that the occurrence of violations of rights protection for participants in the company's apprenticeship program in terms of three main components, namely Statutory Rights, Contractual Rights and Other Rights on the Protection of Rights Internship Program participants have not been frilly implemented in practice yet. This is because there are some companies who do not exercise rights apprenticeship program participants in the form of the right to obtain employment injury insurance and the right to earn pocket money and or transport money and not doing the apprenticeship agreement in writing between the parties with the company's apprenticeship program participants in a company. Other authors propose recommendations for the educational institutions and industry especially Hotel XYZ at Bandung management to address the existing problems. The purpose of these recommendations is to provide input to the hotel in order to provide protection Rights Internship Program Participants in accordance with the rules of government.
Peranan Akuntansi Sektor Publik Terhadap Efektivitas Pengelolaan Pendapatan dan Biaya Pada Enhaii Hotel Bandung
Authors: Choirudin Nor Ismawanto
Published: March 2020

The development of hospitality services is growing rapidly, along with the marry role of investor in the development of the service is no exception to the government, the mechanism of the implementation of hotel financial management in addition managed by the private sector is also managed by the public or government sectors, but the nature and characteristics are different. The purpose of public sector organizations is motivated nonprofit while the private sector is profitable. Sources of public sector financing are derived from taxes, corporate profits of SOEs / SOEs, etc. while private sector financing comes from owner's capital, retained earnings, bank loans, and so on. The pattern of public sector responsibility to the public and the parliament while the private sector is accountable to shareholders, owners and creditors. The organizational structure of the public sector is bureaucratic, rigid and hierarchical while the private sector is flexible. Characteristics of the public sector budget are open to the public while the private sector is closed to the public. Accounting system used public sector cash accounting while private sector accrual accounting. Based on the above, the purpose of this study is to find out how: (1) implementation of public sector accounting role in Enhaii Hotel; (2) implementation of revenue and cost management effectiveness at Enhaii Hotel; and (3) role of public sector accounting on effectiveness Revenue management and fees at Enhaii Hotel. The research methodology applied is qualitative research method with case study at Enhaii Hotel Bandung, data collecting technique is done by observation, interview, document and bibliography, while the model of analysis used is Miles and Huberman model that is data reduction, data display, and data verification. The results of the discussion show that the role of public sector accounting on the effectiveness of revenue and cost management is still less than optimal, this is because it is limited by binding rules, the arrangement of types and sales tariff has been regulated by the government so that income must be deposited to the state treasury as Non-Tax State Revenues (PNBP) And the use of operational costs based on the government budget listed in the List of Budget Implementation (DIPA) STP Bandung because Enhaii Hotel is part of the STP Bandung unit.
Janus Poly(Vinylidene Fluoride) Membranes with Penetrative Pores for Photothermal Desalination
Authors: Yu Hao-Hao , Yan Lin-Jiong , Shen Ye-Cheng , Chen Si-Yu , Li Hao-Nan , Yang Jing , Xu Zhi-Kang
Published: March 2020

Solar-driven desalination has been considered as a promising technology for producing clean water through an abundant and pollution-free energy source. It is a critical challenge to reasonably design the porous morphology and the thermal management of photothermal membranes for enabling efficient energy conversion and water production. In this work, a Janus poly(vinylidene fluoride) membrane was fabricated in combination of penetrative pore structure, asymmetric surface wettability with proper thermal management for high-efficiency solar desalination. Highly open and directly penetrative pores achieved by the two-dimensional solvent freezing strategy are considered to provide direct pathways for water and vapor transportation. The unique feature of hydrophobic upper layer/hydrophilic lower layer enables the photothermal membranes to self-float on the water surface and rapidly pump water from the bulk to the surface. The resulting Janus membrane exhibits a satisfactory light absorbance as high as 97% and a photothermal conversion efficiency of 62.8% under one-sun irradiation in a direct contact mode. The solar-to-vapor efficiency rises up to 90.2% with the assistance of a thermal insulator adopted beneath. Both the Janus membrane and the composite setup are able to work efficiently with a high stability in seawater desalination, and the concentration of ion in condensed water is reduced to below 1 ppm. Therefore, Janus membranes with directly penetrative pores and photothermal surfaces shine a light on the development of high-performance solar evaporators for the practical application in solar seawater desalination.
Ringing Studies at Poultry Wildlife Production Stations
Authors: ÖZKAN Çağrı Özgür , BAYDEMIR Mustafa , KALINKÜTÜK Hacı
Published: March 2020

Yaban hayatının sürdürülebilirliğini sağlamak amacıyla Orman ve Su İşleri Bakanlığı’nca 8 adet kanatlı yaban hayvanı üretim merkezi kurulmuş ve üretim faaliyetlerinde bulunmaktadır. Tarım ve Orman Bakanlığı ve diğer sivil toplum örgütleri tarafından keklik yetiştirip doğaya salma çalışmalarına temel oluşturmak üzere salınan kekliklerin doğal ortamlarında yaşama ve üreme oranlarının bilinmesine ihtiyaç duyulmaktadır. Üretilen kekliklerin takiplerinin bir yolu ise halkama yolu ile yapılmaktadır.
Bu maksatla; kanatlı yaban hayvanı üretim merkezlerinde halkalama yapılmaktadır. Bu çalışma ile kanatlı yaban hayvanı üretim merkezlerinde üretilerek doğaya salınan kekliklerin halkalanması ve geri dönüşümü gibi konular araştırılmıştır.
CALIDAD FÍSICA Y FISOLÓGICA DE SEMILLA DE MAÍZ INFLUENCIADA POR EL PATRÓN DE SIEMBRA DE PROGENITORES
Authors: García-Rodríguez Juan J. , Ávila-Perches Miguel A. , Gámez-Vázquez Francisco P. , De la O-Olán Micaela , Gámez-Vázquez Alfredo J.
Published: March 2020

El uso de semilla de calidad para la producción de maíz (Zea mays L.) constituye una de las inversiones más rentables para el agricultor y justifica ampliamente la investigación en técnicas adecuadas para generarla. La elección del patrón de siembra (PS) de los progenitores en la producción de semilla híbrida de maíz es importante para lograr un equilibrio entre rendimiento y calidad de semilla. El objetivo del presente estudio fue determinar el efecto del PS sobre la calidad física y fisiológica de la semilla del híbrido de maíz H-135. Se evaluaron cinco PS en cuanto a relación hembra-macho, cuatro compactos (PSC) 4:1, 6:1, 8:1, 10:1 y el testigo convencional (6:2); además, se estudió el efecto de tres tamaños (grande, mediana y chica) y dos formas (plana y redonda) de semilla. El experimento se realizó bajo un diseño completamente al azar con arreglo factorial. Los resultados mostraron diferencias significativas (P ≤ 0.05) entre PS en la expresión del peso volumétrico (PV), germinación total (GT) y vigor (VS). El mayor VS se obtuvo con el PSC 8:1 (P ≤ 0.05). Entre formas de semilla se encontraron diferencias en VS, GT y peso de mil semillas (PMS). La semilla redonda superó a la plana en 13 % (P ≤ 0.05) en PMS; sin embargo, la semilla plana fue superior a la redonda en 6 % en VS. El tamaño de la semilla afectó significativamente el PMS, PV y GT. En PV, la semilla mediana presentó la media más alta (76.1 kg hL-1). La semilla grande fue superior (94.4 %) en GT, mientras que las medianas y chicas presentaron germinación de 93.7 y 91.8 %, respectivamente. Los mejores resultados se obtuvieron con los PSC 4:1 y 8:1, y con la semilla de forma plana y tamaño grande.
DETERMINACIÓN DEL CARIOTIPO EN HELICONIAS NATIVAS DE MÉXICO
Authors: Ortiz-Curiel Simitrio , Carrillo-Castañeda Guillermo , Corona-Torres Tarsicio , Cortés-Cruz Moisés , Muratalla-Lua Alfonso
Published: March 2020

Heliconia es un género que agrupa a especies tropicales y subtropicales; se distribuye de manera natural desde Brasil hasta México; la vistosidad de su inflorescencia permite su uso con fines ornamentales. Estudios cariológicos en Heliconia reportan especies con 2n = 2x = 22, 2n = 2x = 24 y 2n = 3x = 36 cromosomas. Debido a que en las especies de México se desconoce el número y morfología cromosómica, el presente estudio tuvo por objetivo determinar el cariotipo de Heliconia uxpanapensis, endémica de México, H. latispatha y H. stricta cv. Iris. El pretratamiento de las raíces se realizó con un medio físico (4 ± 1 ºC). El genoma haploide de H. uxpanapensis mide 22.21 μm, el de H. latispatha 26.56 μm y el de H. stricta 25.37 μm. Las tres especies tienen 2n = 2x = 24 cromosomas, la fórmula cariotípica de H. uxpanapensis está representada por 2n = 8m + 10sm (2sat) + 6st, el de H. latispatha 2n = 4m + 14sm + 6st (2sat) y el de H. stricta 2n = 16m + 8sm. El primero y segundo par de cromosomas de H. latispatha y H. uxpanapensis, respectivamente, presentan satélites, mientras que en H. stricta la presencia del satélite se observó en un solo cromosoma del genoma. Este es el primer estudio en el género Heliconia que reporta la presencia de cromosomas subtelocéntricos.
HEALTH EDUCATION AND COMMUNITY MOBILIZATION IN NIGERIA - ISSUES AND PROSPECTS
Authors: Elozino Ekpomebe , Ananomo Leonard E. , Vivian Andrew Abanum Onome
Published: March 2020

The significance of health to national development and poverty eradication over the centuries, in that improving health status and increasing life expectancy adds to long term economic growth. This article examined the condition of health education and community mobilization in Nigeria's health care delivery. Health literacy is imperative to power and sustains government efforts in fostering health for all. Many developing countries, particularly those in Sub-Saharan Africa, in the 1970s witnessed remarkable and improper inequalities in the provision and delivery of health services. This contributed to and explained the exploration of diverse approaches to enhance health care delivery by international health organizations.