bluuebunny/crossref_metadata_2025 huggingface dataset:
Morphophysiological responses of cowpea to irrigation with saline water and application of bovine biofertilizer
Authors: Veras Mario Leno Martins , Melo Filho José Sebastião de , Alves Lunara De Sousa , Souza Leandra De Melo Cavalcante , Dias Thiago Jardelino
Published: November 2018

Cowpea crop has great economic importance, mainly in the Northeast, where it is a food source for several families. In this context, the objective was to evaluate the effect of levels of electrical conductivity on irrigation water as a function of the application of biofertilizer in the growth and production of cowpea. The experimental design was completely randomized, presenting a factorial scheme of 4 x 2, corresponding to four levels of electrical conductivity of the irrigation water (ECw), 1; 2; 3 and 4 dS m-1 and the presence and absence of bovine biofertilizer application in four replicates. Plant height, number of leaves, stem diameter, number of lateral branches, main branch length, root dry weight, shoot and total number, pod number per plant, mass dry weight of the pod, the length and mean diameter of the pod, the number of grains per plant, the number of grains per pod, the mass of grains and the mass of 100 grains. The increase of ECw inhibits vegetative and productive growth of cowpea and the use of enriched bovine biofertilizer attenuates the effects of saline stress on cowpea, favoring its development.
Germination and interspecific grafting of passion fruit
Authors: Silva Roseano Medeiros da , Aguiar Ana Verônica Menezes de , Garcia Kaio Gráculo Vieira , Faleiro Fábio Gelape , Mendonça Vander , Cardoso Eudes De Almeida
Published: November 2018

The objective of this study is to evaluate the seed germination and efficiency of grafting yellow passion fruit on six Passifloraceae species. The species used as rootstocks were Passiflora foetida L., P. cincinnata Mast., P. ligularis Juss., P. caerulea L., P. gibertii N. E. Brown, and P. edulis Sims. The study involved six treatments with four replicates of eight plants per plot and was arranged in a completely randomized block design. The seedlings were produced on a non-sterile substrate composed of a mixture of soil and bovine manure at the ratio of 3:1. The percentage of germination was high for all studied species, and the rate of graft development and survival was higher than 70 and 85.71%, respectively, within 60 days after grafting.
Bioproducts against food-borne pathogenic bacteria
Authors: Benitez Lisianne Brittes , Dos Santos Ariana Pereira , Muller Ana Paula , De Souza Thamires Klein
Published: November 2018

Advances in biotechnology research show the rising generation of a variety of products derived from microbial, plants and animal sources. These products are known as “bioproducts” or “natural products”. The preservation of the microbiological quality of foods without the use of chemical preservatives has become a challenge stimulating new researches on conservation alternatives. The aims of this study were the assessment of the the antibacterial activity of several bioactive compounds: essential oils of orange, lavender, green and red mandarins; ethanol extract of oregano and protein hydrolyzed from shrimp shell against Escherichia coli and Staphylococcus aureus isolated from foods, and the comparison between two different methods used in the screening of natural products with potential antibacterial activity. The antibacterial activities of the natural compounds were determined using agar diffusions tests and bioautography methods. The Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) were determined for the essential oils of orange and lavender, and the ethanolic oregano extract. The essential oils of orange and lavender and the ethanolic oregano extract showed antimicrobial activity against all bacteria tested in the study. The agar disk diffusion and the bioautographic methods showed no significant difference in the evaluation of the biological activity of natural products.
THE CALCINATION TEMPERATURE EFFECT ON THE ANTIOXIDANT AND RADIOPROTECTION PROPERTIES OF CeO2 NANOPARTICLES
Authors: Nurhasanah Iis , Safitri Weni , Windarti Tri , Subagio Agus
Published: November 2018

The CeO2 nanoparticles are very interesting to be studied as biomedical materials due to its unique physical and chemical properties. The non-stoichiometric properties of CeO2 play a role in the redox/catalytic processes that scavenging free radicals. These properties make CeO2 nanoparticles as being potentially antioxidant and radioprotector materials. In this paper, we report the calcination temperature effect on the antioxidant properties and  radioprotective effect of CeO2 nanoparticles synthesized by precipitation method. The CeO2 nanoparticles were synthesized by precipitation method at various calcinations temperatures (300oC – 700oC). The formation of CeO2 nanoparticles and crystallite size was analyzed using X-ray diffractometers. The DPPH method was used to investigate antioxidant properties of CeO2.  Dose Enhancement Factor (DEF) of CeO2 nanoparticles were determined by measurement of the absorbed dose of X-ray radiation (Linac 6 MV 200 MU). X-ray diffraction pattern showed formation of cubic fluorite of CeO2 nanoparticles with crystallite size in the range 9 nm-18 nm.  Calcination temperature of 500oC resulted in CeO2 nanoparticles with the best antioxidant properties and lowest DEF value. The radioprotection effect of CeO2 nanoparticles was evaluated based on Escherichia coli survival toward X-ray radiation with a dose of 2 Gy. The CeO2 nanoparticles increased Escherichia coli survival of about 24.8% order.  These results suggested that CeO2 nanoparticles may potentially be as radioprotector of X-ray Linac 6 MV. Keywords: Antioxidant, CeO2 nanoparticles, Dose Enhancement Factor (DEF), radioprotector
Recovery of Aluminum from Aluminum Coated Plastic Waste using Pyrolysis Process
Authors: Irawan Chairul , Jelita Rinny , Nata Iryanti Fatyasari
Published: November 2018

This study aims to separate aluminum metal in aluminum coated plastic waste so that it is known the obtained aluminum characteristics, to study the effects of temperature on the yield of solids and aluminum,  and to get the kinetic parameters that describe the effects of temperature on pyrolysis process rate. Plastic waste was cleaned, dried, cut, and weighed as much as 100 grams. Pyrolysis lasted in room temperature in 2 hours after the pyrolysis temperature was reached, i.e. 450oC. The formed smoke was condensed and weighed every 10 minutes from the first droplet until the pyrolysis time was completed. The remaining solids in the reactor were taken after the pyrolysis was completed and reactor temperature reached room temperature. The aluminum mixture was subsequently melted, molded and cooled. Experiments were repeated in various pyrolysis temperature variations (500°C, 550°C, 600°C and 650°C). The results show that the increase of pyrolysis temperature will decrease the yield of solids, while the aluminum yield remains. The obtained aluminum metal is 5.3% against the initial plastic mass in purity of 95.80%. The kinetic model representing plastic pyrolysis process is a single reaction model with the value of kinetic parameters of pre-exponential factor (A) 18.2689 min-1 and the activation energy value (E) 40.2310 kJ/mole.   Keywords: aluminum, pyrolysis, plastic wastes, temperature, kinetic parameter
Shelf Life Prediction of Chocomix Instant Chocolate Beverage Powder Using Accelerated Shelf Life Testing (ASLT) based on Critical Moisture Content Approach
Authors: Nurhayati Rifa , Pratiwi Rosi , Katri Anandito Baskara , Rahayu Novita Ervika , Angwar Mukhammad
Published: November 2018

Chocomix chocolate beverage powder is one of the increased value-added cocoa products by Griya Cokelat Nglanggeran. The aimed of this study to estimate the shelf life using Accelerated Shelf Life Testing (ASLT) based on critical moisture content. Results showed that critical moisture content of Chocomix was 4.01 % (db). Moisture sorption isotherm (MSI) curve of Chocomix at 28oC was type II isothermic sigmoidal with 2 curves at the ranged of water activity between 0.24 and 0.68; and the equation was  y = 86.584X3 – 91.893X2 + 28.818X – 0.470. The calculation showed that estimated shelf life of Chocomix stored in 51.89 µm thick package at 28oC was 16.4 months.Keywords: chocolate powder, critical moisture content, moisture sorption isotherm, shelf life
Performance of Various Organic Solvents as Reaction Media in Plant Oil Lipolysis with Plant Lipase
Authors: Istyami Astri Nur , Hernas Soerawidjaja Tatang , Prakoso Tirto , Penia Kresnowati Tri Ari
Published: November 2018

Fatty acids are intermediate substances in synthesis of oleochemical products. Enzymatic technology of fatty acids production (also known as lipolysis) is now developing as potential substitution for the conventional production of fatty acid, i.e. thermal hydrolysis of triglyceride. It offers more economical process condition, low energy consumption, and minimal product degradation compared to the conventional process. This research aims to evaluate performance of various organic solvents as reaction media in lipolysis with plant latex lipase. Organic solvents observed were chloroform, n-hexane, diethyl ether, benzene, acetone, ethanol, methanol, n-heptane, and isooctane. Analysis of each organic solvent effect on lipolysis was described based on solvents properties. Conversion of lipolysis with organic solvents is 0,10-1,25 times fold compared to conversion of non-solvent lipolysis. We suggest that dielectric constant and viscosity are the two main organic solvent properties affecting lipase performance in lipolysis. Overall, n-hexane, n-heptane, and isooctane are recommended to be used as reaction media in lipolysis with plant lipase because their effects to degree of lipolysis are positive.  Keywords: lipolysis; lipase; organic solvent; frangipani
Hazard Assessment of LNG Loading-Unloading Process in Cirebon Port
Authors: Devianto Hary , Eviani Mitra , Widiatmoko Pramujo , Nurdin Isdiriayani
Published: November 2018

Cirebon Port has spacious work and water area that provides opportunities to be developed in industrial sectors, particularly the petrochemical industries such as ethylene and Liquefied Natural Gas (LNG). In atmospheric condition, they are classified as volatile gas. Either in processing or transporting, they are stored in closed system. However, they still have a probability to be released to the environment and may lead to a fire or explosion. This probability is increased in the existence of coal stockpile in the port area which can evoke a fire. Therefore, a safety study is needed to identify the risk of the loading-unloading activities. The problem was solved by following steps. First, the data such as physical properties, layout area, and geographical condition around the port were collected. Then, the hazardous nodes were identified qualitatively, and then the quantitative analysis was done using As Low As Reasonably Practicable (ALARP) analysis. From the safety study, a suitable handling and safety system is provided to ensure safety viability in the ethylene and LNG loading-unloading process at the Cirebon port.Keywords: ethylene; hazard assessment; LNG; loading-unloading process; Quantitative Risk Assessment (QRA)
The (Forgotten) Significance of Interchapters in John Steinbeck’s The Grapes of Wrath: From Tenancy to Seasonal Migrant Farm Labor
Authors: Burcar Lilijana
Published: November 2018

In the wake of the so-called postmodernist turn in literary studies and criticism, Steinbeck’s The Grapes of Wrath has been subjected to a major interpretative revision that has reoriented the focus solely on the chapters dealing with the Joads while leaving out those that provide a detailed analysis of larger socioeconomic forces at work. The latter are laid out in documentary interchapters that constitute the backbone of dialectical montage, a narrative method used by Steinbeck to create a consciousness-raising novel. Documentary interchapters, as this paper argues, shed light on the integrated forms of systemic exploitation that agricultural workers face in capitalism. Overlooking the significance of documentary interchapters results in a reductive reading of Steinbeck’s classic, which in turn also undermines its consciousness-raising potential in our era.
Static Perturbation Analysis of Inclined Shallow Elastic Cables under general 3D-loads
Authors: Luongo Angelo , Zulli Daniele
Published: November 2018

Inclined, shallow, elastic cables under static 3D loads, arbitrarily distributed, are studied. Cables having natural length both larger or smaller than the distance between the supports (i.e. suspended or taut cables, respectively), are considered. Kinematically exact equations are derived, and projected onto an orthonormal basis intrinsic to the chord. A perturbation procedure is proposed, which extrapolates the solution relevant to the taut string, up to the desired order, and leads to a closed-form solution. Lower-order solutions are consistent with the hypotheses normally adopted in technical environment. Emphasis is given to the mechanical interpretation of the cable behavior. The asymptotic solution is compared to the explicit (not in closed-form) solution of the literature.
Clinical Reasoning: A State of the Science Report
Authors: Holder Amy Golden
Published: November 2018

Clinical reasoning is the cognitive process that nurses use to gather and incorporate information into a larger bank of personal knowledge. This incorporated information guides therapeutic actions, and helps determine client care. Since the process guides therapeutic actions regarding client care, failure to use the process effectively leads to poor clinical decision-making, inappropriate actions, or inaction. Because of the criticality of this process, this paper presents an analysis of the literature that reveals the current state of the science of clinical reasoning, identifies gaps in knowledge, and elucidates areas for future research. A systematic review of the databases the Cumulative Index to Nursing and Allied Health Literature (CINAHL), the Educational Resources Information Center (ERIC), PsychInfo, the Education Full Text (H.W. Wilson), and PubMed revealed 873 articles on the topic of clinical reasoning. Quality appraisal narrowed the field to 27 pieces of literature. Appendix A gives the State of the Science Coding Sheet used to identify the selections used in this research. Appendix B contains a summary of this literature. Although analysis of this literature shows that three theories exist on how to utilize most effectively the clinical reasoning process presently; a clear consistent definition is lacking. Additional research should focus on closing gaps that exist in defining the process, understanding the process, establishing linkages to non-clinical reasoning processes, and developing measures to both develop and accurately measure clinical reasoning.
Development of a Stability Indicating Method for Simultaneous Analysis of Five Water-Soluble Vitamins by Liquid Chromatography
Authors: Yessaad Mouloud , Bernard Lise , Bourdeaux Daniel , Chennell Philip , Sautou Valérie
Published: November 2018

Background

Water-soluble vitamins are often included simultaneously in pharmaceutical formulations as food complements or in parenteral nutrition mixtures. Given their sensitivity to heat, light or pH variations, it is important to study their stability using validated stability indicating methods. We thus aimed to validate a liquid chromatography (LC) stability-indicating method for the simultaneous quantification of 5 water-soluble vitamins.

Methods

We analyzed four water-soluble B vitamins (nicotinamide, pyridoxine, folic acid, cyanocobalamin) and ascorbic acid using a LC method with diode array detector. They were separated on a C18 stationary phase under gradient elution of solvent A [0.2 % of metaphosphoric acid in water and acetonitrile 98:2] and solvent B (100 % acetonitrile). All vitamins were subjected to forced degradation conditions and we showed that the obtained degradation products didn’t interfere with the vitamins.

Results

The method allows the separation of the 5 water-soluble vitamins in a 30 minute run without any interference from the breakdown products obtained with acid/alkaline solutions, hydrogen peroxide, temperature and light. It meets all the qualitative and quantitative criteria for validation with an acceptable accuracy and good linearity.

Conclusions

This stability-indicating method can be used for carrying out stability studies of water-soluble vitamins in pharmaceutical preparations.
Wahibreemakhet at Saqqara
Authors: Villing Alexandra
Published: November 2018

The case of Wahibreemakhet, son of Alexikles and Zenodote, is the most prominent example for the high status that Greeks – as mercenaries or advisors – could attain in Egypt under the Saite pharaohs. The present article argues that his final resting place should be identified in a tomb at Saqqara that was probably discovered by agents of Giovanni Anastasi in the 1820s and that contained not only Wahibreemakhet’s elaborate stone sarcophagus (now in Leiden), canopic jars (in Stockholm) and shabtis (in various collections), but also a set of limestone tomb reliefs recording spells from the Book of the Dead that are today in the collection of the British Museum and that were once erroneously attributed to ‘Campbell’s tomb’ at Giza. Wahibreemakhet’s rich burial, dating to the decades around 600 BC, and his ranking title ‘Royal Sealer’ illustrate both his social status and his assimilation to Egyptian culture.
“Cylinder seals for the lower classes”
Authors: Willems Harco
Published: November 2018

Egyptologists have paid much attention to inscribed administrative seals and their impressions. By contrast, the so-called figure seals, which render no or hardly any text, but instead use icons and signs inspired on hieroglyphs which however yield no coherent sense, have received far less attention. Usually this material is related to the lower strata of society. According to current interpretations, it is rooted in the Egyptian culture of the later Old Kingdom and First Intermediate Period. The phenomenon would be a corollary of the decreasing prominence of central state authority in this era. Proceeding from a number of recent early Old Kingdom finds from al-Shaykh Saʽīd/Wādī Zabaydā, the present article argues that a) figure seals were continually in use from the late Predynastic until the late Old Kingdom and b) different from what is commonly assumed, stamp seals were in existence long before the late Old Kingdom. The article challenges the relationship between these object categories and developments specifically in late Old Kingdom Egypt.
Androgen excess in breast cancer development: implications for prevention and treatment
Authors: Secreto Giorgio , Girombelli Alessandro , Krogh Vittorio
Published: November 2018

The aim of this review is to highlight the pivotal role of androgen excess in the development of breast cancer. Available evidence suggests that testosterone controls breast epithelial growth through a balanced interaction between its two active metabolites: cell proliferation is promoted by estradiol while it is inhibited by dihydrotestosterone. A chronic overproduction of testosterone (e.g. ovarian stromal hyperplasia) results in an increased estrogen production and cell proliferation that are no longer counterbalanced by dihydrotestosterone. This shift in the androgen/estrogen balance partakes in the genesis of ER-positive tumors. The mammary gland is a modified apocrine gland, a fact rarely considered in breast carcinogenesis. When stimulated by androgens, apocrine cells synthesize epidermal growth factor (EGF) that triggers the ErbB family receptors. These include the EGF receptor and the human epithelial growth factor 2, both well known for stimulating cellular proliferation. As a result, an excessive production of androgens is capable of directly stimulating growth in apocrine and apocrine-like tumors, a subset of ER-negative/AR-positive tumors. The key role of androgen excess in the genesis of different subtypes of breast cancer has significant clinical implications for both treatment and prevention. Our belief stems from a thorough analysis of the literature, where an abundance of evidence is present to justify a clinical trial that would investigate the effectiveness of treating the underlying excessive androgen production.
FSH inhibits AMH to support ovarian estradiol synthesis in infantile mice
Authors: Devillers Marie M , Petit Florence , Cluzet Victoria , François Charlotte M , Giton Frank , Garrel Ghislaine , Cohen-Tannoudji Joëlle , Guigon Céline J
Published: November 2018

Anti-Müllerian hormone (AMH) regulates ovarian function in cyclic females, notably by preventing premature follicle-stimulating hormone (FSH)-mediated follicular growth and steroidogenesis. Its expression in growing follicles is controlled by FSH and by estradiol (E2). In infantile females, there is a transient increase in the activity of the gonadotrope axis, as reflected by elevated levels of both gonadotropins and E2. We previously demonstrated in mice that elevated FSH concentrations are necessary to induce E2 production by preantral/early antral follicles through the stimulation of aromatase expression without supporting their growth. However, whether this action of FSH could involve AMH is unknown. Here, we show that Amh mRNA and protein abundance and serum AMH levels are elevated in infantile mouse females, compared with those in adults. By experimentally manipulating FSH and E2 levels in infantile mice, we demonstrate that high FSH concentrations lower Amh expression specifically in preantral/early antral follicles, whereas E2 has no effect. Importantly, treatment of infantile ovaries in organotypic cultures with AMH decreases FSH-mediated expression of Cyp19a1 aromatase, but it does not alter the expression of cyclin D2-mediating granulosa cell proliferation. Overall, our data indicate that the infantile elevation in FSH levels suppresses Amh expression in preantral/early antral follicles, thereby favoring Cyp19a1 aromatase expression and E2 production. Together with recent discoveries that AMH can act on both the hypothalamus and the pituitary to increase gonadotropin levels, this work suggests that AMH is a critical regulator of the gonadotrope axis during the infantile period, thereby contributing to adult reproductive function programming.
Surgical Treatment for Hypertrophic Obstructive Cardiomyopathy with Concomitant Mitral Valve Abnormalities: A Cohort of 26 Cases
Authors: Song Bang-rong , Ren Yanlong , Zhang Hong-jia
Published: November 2018

Background: We sought to analyze the pathological characteristics of hypertrophic obstructive cardiomyopathy (HOCM) with concomitant mitral valve abnormalities and to discuss the surgical treatment strategies.

Methods: The clinical data of 26 HOCM patients treated from January 2014 to March 2016 were retrospectively analyzed. There were 19 males and 7 females with a mean age of 47 ± 16 years (range, 10-70 years). Echocardiography showed HOCM, systolic anterior motion of the mitral apparatus, and concomitant mitral regurgitation. Modified Morrow procedure with expanded resection area was performed in 21 patients. Concomitant mitral valvuloplasty was performed in 4 patients, coronary artery bypass grafting was performed in one patient, and aortic valve replacement was performed in one patient. Echocardiography was performed intraoperatively at postoperative 1 week and at postoperative 1 year to evaluate the left ventricular obstruction and the mitral regurgitation.

Results: The left ventricular outflow tract gradient, left ventricular outflow tract velocity, septal thickness, and mitral regurgitation area decreased significantly at postoperative 1 week and 1 year in comparison with the baseline (all P < .001). The postoperative mitral regurgitation and systolic anterior motion of the mitral apparatus were completely abolished or significantly relieved. Only one patient had moderate mitral regurgitation of 7 cm2 after the surgery. At postoperative 1 year, all patients were asymptomatic, and the quality of life was significantly improved. The New York Heart Association (NYHA) class was I-II. Echocardiography showed good anatomy and function of the mitral valve.

Conclusions: Concomitant mitral valve abnormality is not uncommon in HOCM. Septal myectomy can adequately expand the left ventricular outflow tract and abolish mitral regurgitation and systolic anterior motion of the mitral apparatus. Concomitant mitral valvuloplasty is indicated for severe congenital abnormalities or secondary lesions of the mitral valve, and the outcomes are satisfactory.
Functional Analysis of a Putative Target of Spatially Varying Selection in theMenin1Gene ofDrosophila melanogaster
Authors: Svetec Nicolas , Saelao Perot , Cridland Julie M , Hoffmann Ary A , Begun David J
Published: November 2018

While significant effort has been devoted to investigating the potential influence of spatially varying selection on genomic variation, relatively little effort has been devoted to experimental analysis of putative variants or genes experiencing such selection. Previous population genetic work identified an amino acid polymorphism in the Mnn1 gene as one of the most strongly latitudinally differentiated SNPs in the genome of Drosophila melanogaster in the United States and Australia. Here we report the results of our transgenic analysis of this amino acid polymorphism. Genotypes carrying alternative Mnn1 alleles differed in multiple phenotypes in a direction generally consistent with phenotypic differences previously observed along latitudinal clines. These results support inferences from earlier population genomic work that this variant influences fitness, and support the idea that the alleles exhibiting clines may be likely to have pleiotropic effects that are correlated along the axes favored by natural selection.
Face and face practices in Chinese talk-in-interaction: A study in interactional pragmatics. By Wei-Lin Melody Chang
Authors: Yang He
Published: November 2018

Face and face practices in Chinese talk-in-interaction: A study in interactional pragmaticsWei-Lin Melody Chang (2015)Sheffield: Equinox. Pp. 171ISBN 978-1-78179-134-9 (hbk)
Sociolinguistics: Theoretical Debates. By Nikolas Coupland (ed.)
Authors: Orman Jon
Published: November 2018

Sociolinguistics: Theoretical debatesNikolas Coupland (ed.) (2016)Cambridge: Cambridge University Press. 458 pp.ISBN 9781316685105 (e-Book)
Language and superdiversity: Indonesians knowledging at home and abroad. By Zane Goebel
Authors: Saddhono Kundharu
Published: November 2018

Language and superdiversity: Indonesians knowledging at home and abroadZane Goebel (2015)Oxford University Press. Pp. xviii + 288ISBN 978-0-199-79542-0
Ute dictionary. By Talmy Givón (with Pear Casias, Vida Peabody and Mary Inez Cloud)
Authors: Kittilä Seppo
Published: November 2018

Ute dictionaryTalmy Givón (with Pear Casias, Vida Peabody and Mary Inez Cloud) (2016)[Culture and Language Use, vol. 15]Amsterdam and Philadelphia: John Benjamins. Pp. xiv + 372ISBN 9789027202987 (hbk)ISBN 9789027202994 (pbk)ISBN 9789027268396 (e-Book)
Some comments on the concept of conversational history
Authors: Ionescu-Ruxăndoiu Liliana
Published: November 2018

The article attempts to evaluate the theoretical importance and the explicative power of the concept of conversational history. From a theoretical viewpoint it complements, at a different level, Bakhtin’s concept of interior dialogization of discourse. It proved its efficiency mainly in the analysis of litterary texts.
Conversational dynamics in the ‘Roman d’Albertine’ (‘Albertine’s love story’) – Marcel Proust, À la recherche du temps perdu (In search of lost time)
Authors: Henrot-Sostero Geneviève
Published: November 2018

À la recherche du temps perdu (In search of lost time), the famous novel sequence by the contemporary French writer Marcel Proust, weaves thousands of conversations between its characters, which often last through the years. In particular, as love speech implies a deep emotion, all its words are carefully kept in mind over time. The narrator, who pays the sharpest attention to all kinds of interaction between human beings, illustrates by means of many convincing side comments and inner speeches, how conversation works, not only in a single scene, but also from one scene to the next, throughout its history. And the stability and longevity of Proustian characters extend those conversational relationships to a good deal of the novel, so that it seems most interesting to analyse the concept of conversational history in such a massive corpus. Specifically, we shall pay attention to the historical conversation between the Narrator and his beloved Albertine, from both macro-discursive and micro-discursive dynamics, to get a deeper insight on its powerful narrative function in the love story.
The effect of electrical discharge treatment of milk whey on partial conversion of lactose into lactobionic acid
Authors: Kochubei-Lytvynenko О.
Published: November 2018

The article considers the scientific aspects of probable partial transformation of lactose into lactobionic acid due to the electrical discharge dispersion of magnesium and manganese conductive granules in milk whey – a traditional lactose-containing raw material. The object of this study was milk whey, defatted and with casein dust particles removed, which was treated in a discharge chamber with a conductive layer of magnesium and/or manganese granules at (20±2)°С with 120–180 s of exposure. A UPLC-MS/MS analysis of milk whey was carried out using a TSQ Vantage chromatograph-mass spectrometer (ThermoFinnigan, USA) connected to a Dionex Ultimate 3000 liquid chromatograph. The changes have been studied taking place in pH and redox potential of milk whey after electrical discharge treatment, as compared to the original whey. It has been established that electrical discharge treatment with 180 s of exposure increases the Mg content in milk whey by approximately 4 times, and increases the Mn content by 3.5 times. The dispersed metal particles are found in nano- (about 30 nm) and microscale (100 nm to 10 µm). The UPLC-MS/MS analysis of the test samples of whey that underwent electrical discharge treatment allowed identifying a chromatographic peak [M–H]–=357 m/z related to lactobionic acid. The derivative lactose content increased by 2 times in the whey samples treated for 180 s in a reaction chamber with a conductive layer of Mg between the corresponding electrodes, as compared to the original whey, and by 4 times in the samples subsequently treated in the reaction chambers with a layer of Mg and Mn granules between the corresponding electrodes, with 120 s of exposure in each chamber. The way has been presented of solving the problem of complex, economically practical and environmentally safe processing of milk whey with the prospect of obtaining lactobionic acid, a biologically valuable derivative of lactose.
The peculiarities of crystal formation during freezing of broccoli
Authors: Belinska S. , Levitskaya S. , Каmienieva N. , Roskladka А. , Kitayev O.
Published: November 2018

The peculiarities of crystallization during the freezing of the inflorescences broccoli of Parthenon sort, zoned cabbage  in Ukraine, have been researched and analyzed. The mass fraction of moisture and the form of its connection with dry substances in freshly picked cabbage and depending on the methods of pretreatment before freezing were determined: blanching for 3 minutes at a temperature of 85°C and exposition in the 3% salt solution for 20 minutes.
It is established that in the general part of moisture prevails osmotically-absorbed. When blanching cabbage, the amount of the colloid-bound moisture is significantly reduced and the amount of osmotic-absorbed increased. It is predefined by partial dеnaturаtion of the protein and by the decline of him to moisture keeping ability. Exposure in solution of NaCl substantially does not influence on the change of forms of the moisture binding.
Study of the process of the crystals formation was undertaken by the method of differentially thermal analysis. Analysis of the exothermic processes shows that the optimum temperature for storage of non treating broccoli is –14.5°C, at which crystallization occurs all forms of physical and chemically bonded water, which helps to maximize the preservation of consumer properties of cabbage The inflorescences exposure in the salt solution, compared with the most commonly used blanching operation, also contributes to reducing the energy intensity of the production, as it provides the crystallization of all forms of water at a temperature of –10°C, which is substantially lower than the temperature regulated by the regulatory documents –18°С.
A forecast model of the dependence of the crystallization initiation temperature on the mass fraction of moisture has been developed. The use of the presented model will help to manage the process of crystallization to improve the quality of the frozen broccoli cabbage.
Edible film-forming coating with CO2-extracts of plants for meat products
Authors: Soletska A. , Nistor K. , Hevryk V.
Published: November 2018

In this work, a film-forming coating for natural semi-finished pork meat has been developed, which has barrier properties against microbial flora and free oxygen radicals. Polysaccharides such as agar, gelatin, cornstarch, and citrus pectin were used as components of a film-forming coating, as well as CO2-extracts of parsley and ginger. It has been found that the most effective is a coating with the following composition: agar – 0.25%, citrus pectin – 0.5%, citric acid – 0.5%, CO2-extract of parsley or CO2-extract of ginger – 0.1%. This coating prolongs the shelf life of natural semi-finished pork meat at a storage temperature (–1…+1)°С for 2 days compared with the traditional technology.Studying the effect of the film-forming coating developed on the organoleptic properties of meat has shown that on the 7th day of storage at a temperature (–1…+1)°С, there were no signs of spoilage like putrid smell, greenish stain, and sliminess that were observed in the samples without coating. The study of the effect of the coating on the microbiological parameters of the meat has shown that the best microbiologcal stability that does not exceed the allowable values after 7 days of storage at a storage temperature  (–1…+1)°C is that of the sample covered with the film-forming coating with a CO2-extract of parsley. The study of the effect of the film-forming coating on the physical and chemical properties of meat has shown that peroxide number of its fat content is lower by 0.007% of iodine, and the acid number of its fat content is 0.39 mg KOH/kg of fat lower compared to the values of these parameters in the meat samples without coating. Besides, during storage, the mass loss in the meat samples covered with the coating developed was about 6 % less, thus reducing drying loss.
Influence of temperature regimes of ripening and fermentation stages on the physical and chemical properties of cream and sour-cream butter quality indicators
Authors: O. Bondarchuk O.
Published: November 2018

Physical and chemical properties of cream multistep modes of ripening and fermentations are investigation and their role in the production of sour-cream butter is studied. The process of ripening of cream was carried out multistep, regimes were selected depending on seasonal changes in the composition of milk fat. For raw materials of the autumn-winter period, for the values of iodine number 29.1–34.5, the first stage of ripening was carried out at a temperature of 8°C for 2 hours, the second stage – at 21°C for 7 hours, the third stage – at 13°C for 10 hours. For raw of spring-summer period, for the values of iodine number 34.5–40.1, the first stage of ripening was carried out at 21°C for 6 hours, the second stage – at 13°C for 4 hours, the third stage – at 8°C for 8 hours. It has been established that individual modes of low-temperature cream preparation, taking into account seasonal changes in the composition of milk fat, make it possible to obtain cream before churning almost with the same indexes of effective viscosity. The content of the crystalline phase of milk fat under both temperature regimes was 38.7–40.1%, which is sufficient to obtain of proper consistency sour-cream butter. The content of diacetyl and volatile organic acids more depend on the level of fermentation of cream than on the technological regimes of ripening and seasonality of raw materials. It has been proved that an increase in the fermentation degree of cream promotes an increase in the acidity of plasma and the content of aroma-producing components in the butter, and, accordingly, affects the degree of the sour taste. It is recommended for the production of cultured butter to begin the cream when the acidity of the plasma reaches 60ºT, which ensures the formation of high sensorial characteristic of the finished product.
Investigation of the safety grapeseed powder as an alternative to cocoa-powder in a confectionery glaze
Authors: Gorodyska O. , Grevtseva N. , Samokhvalova O. , Savchenko O. , Grygorenko A.
Published: November 2018

The article considers the safety and environmental cleanliness of grapeseed powders compared to the natural and alkalized cocoa powders. The content of heavy metals in the investigated powders has been determined by the atomic adsorption method; radionuclide activity has been determined by the spectrometric method; the presence of mycotoxins B1, T-2-toxin, zearalenone, and deoxynivalenol (vomitoxin) has been determined by thin-layer chromatography; the amount of nitrates has been determined by the ionometric method; contamination of powders with organophosphorous and organochlorine  pesticides has been determined by chromatographic method. 
According to the results of experiments, the content of heavy metals in all investigated powders is within the limits of the maximum permissible concentration, whilst powders of grapeseeds are notable for a significantly lower mass content of plumbum, zinc, copper salts. As for the radioactivity of grapeseed powders, the activity of radionuclides is significantly below the permissible level. Presence of aflatoxin В1 has been detected in the alkalized cocoa powder sample, of zearalenone – in the grapeseed powder oilcake sample. Their concentration does not exceed the allowable concentration. Mycotoxines are absent in other samples investigated. Concentration of nitrates in the natural and alkalized cocoa powder samples is by 20–30 times higher than that found in grapeseed powders. The content of organophosphorous and organochlorine  pesticides in all cocoa powder samples and all grapeseed containing powders is below the method’s threshold of detectability. The glaze samples containing the additives investigated have a considerably lower content of heavy metals compared to the reference samples.
Glaze with cocoa powder partially replaced with grapeseed powders has high organoleptic quality parameters. During the glazing process, it is applied on the surface of products in thin layers and cools down in small waves. The results obtained prove that domestic raw materials are safe for human health, and confectionery glaze containing grapeseed powders as partial replacement of the cocoa powder has high safety characteristics.
Determination of functional and technological properties of beef based on the analysis of color digital images of muscular tissue samples
Authors: Savinok О. , Azarova N. , Arsiriy О. , Nikolenko А.
Published: November 2018

The paper considers the kinetics of changes in the values of рН and temperature of beef of slaughtered Holstein bull calfs aged 15 months during cold storage. It has been established that the rate of pH decrease during autolytic maturation is greatly influenced by the rate of temperature decrease. This was observed in the two muscles taken as an example – m. Longissimus dorsi and m. Semimembranosus.
A method is suggested of analysing digital images of beef muscular tissue samples in the color coordinate space to study the beef’s color characteristics during cold storage. It has been found out that using this method, with second order polynomial fitting, provides a mean-square approximation error of 5.6% on average from the minimum coordinate of the maximum level of the red component of color. This suggests the objectivity of its use to assess the color of the meat.
An analytical dependence has been established between the beef color and the term of refrigeration with the use of information technologies. In accordance with it, it has been determined that due to biochemical processes, there takes place intense oxidation of myoglobin, which results in a dark color of the muscle tissue. In the course of time (up to 120 hours of storage), the red color intensity increases. This is accompanied with decomposition of myoglobin forms that have appeared, and with appearance of МbО2. When beef is stored for more than 140 hours, deeper iron oxidation begins, with formation of methyoglobin, and the brightness of the meat decreases.
The developed method allows automating registration and processing of images of muscle tissue in real time, increases the productivity of the assessment, and gives an opportunity to obtain reliable objective results about the meat properties during its storage.
The using of mechanodiffusion effect in the production of concentrated polyextracts
Authors: Burdo O. , Alhurie Usef , Syrotiuk I. , Levtrynskaya Ju. , Rosmami Pur Davar
Published: November 2018

In this paper, new results are presented regarding the preparation of polyextracts under the conditions of the action of the microwave field and their subsequent thickening. According to the hypothesis advanced by the authors, the features of the selective action of the microvolume field on the solvent molecules, it is possible to initiate an effect called mechanodiffusion. The effect action is particularly pronounced in the cramped conditions of capillary structures. This hypothesis is confirmed by a number of experimental studies. The created stand for the visualization of the mechanodiffusion phenomenon fixed emissions from the models of capillaries filled with liquid during the microwave field influence. The use of the endoscope shielded from the microwave field made it possible to record this effect for the first time. It is noticed that from the capillary during the microwave field influence not only liquid is thrown out, but also paint particles, that is, dry substances. For extraction processes, this effect is particularly valuable, since it allows one to initiate a rapid transition of components into the extract, including insoluble ones. It is important to keep thermolabile biologically active substances and vitamins when manufacturing phytopreparations. An experimental stand has been created, where the extraction process is carried out under vacuum. The working pressure is in the range of 20–40 kPa. Such conditions ensure the boiling of the extract already at 30–40°С, which contributes to continuous updating of the boundary layer, which greatly intensifies the process. Due to the phenomenon of barodiffusion, there is no need to use several extractants to obtain a polyextract. The necessary stage in the production of phytopreparations is the concentration of extracts. The microwave vacuum-evaporator allows you to remove moisture at low energy costs and a high rate of moisture removal.
Reagent purification of the processing industry enterprises effluents
Authors: Malovanyy М. , Krusir G. , Holodovska О. , Masikevych A.
Published: November 2018

The article represents the results of research of the effluents purification by the reagent methods. The effluents were polluted by organic compounds of processing enterprises  with small productivity. The analysis of pollution of the hydrosphere caused by the processing enterprises is carried out and the promising methods of cleaning wastewater from pollution are given. As an object of research, the streams of the production site of the fruit and vegetable juices of the Buzky Canning Factory were used. As a reagent-oxidant, sodium hypochlorite was studied. The mechanism of purification of contaminated wastewater with sodium hypochlorite is considered in detail. The task of experimental studies was to determine the flow of sodium hypochlorite where wastewater treatment is carried out to a level lower than that regulated by standards. The criterion for cleaning efficiency was two indicators of water quality: chemical oxygen consumption (COC) and dry residue. The results of the conducted studies allow us to conclude that the use of sodium hypochlorite for purification of fruit and vegetable juice from organic pollutants is promising. It is established that for effluents of the Buzky canning plant, optimal use is made for purification of effluents of hypochlorite in the ratio of 0.5 dm3/m3 of wastewater that is being purified. To ensure environmental safety from possible contamination of unreacted hypochlorite of treated wastewater, an estimation of the cost of hyprochlorite for purification and comparison of residual concentrations with normalized parameters was carried out. The kinetics of oxidation of organic impurities in effluents was also studied, which was expressed by the degree of reduction of the COC solution in the process of reacting it with sodium hypochlorite. It is proved that the kinetics of the process of oxidation of organic contaminants is described by the equation valid for monomolecular reactions. For the system under study, the rate constant of the oxidation process of organic contaminants is 0,074 1/s. The principal scheme of purification of the effluents of the Buzky canning plant by sodium hypochlorite is proposed.
Neurosurgery Trainees’ Perspectives of the ‘Mock Viva’
Authors: McKenna Grainne
Published: November 2018

This article was migrated. The article was marked as recommended. The ‘viva voce’ examination has been a tradition in surgical training for over a century, and remains a key element of the ‘Fellowship of the Royal College of Surgeons' (FRCS) Examination, which neurosurgery trainees must pass to complete their training. The aims of this study were to evaluate the educational value of an annual ‘mock viva’ as a formative assessment tool for neurosurgical trainees during their eight year training programme, to identify barriers to participating in the mock viva and to explore how these might be attenuated to increase levels of engagement. A mixed deductive and inductive methodology was employed for the study design and qualitative data analysis. Semi structured interviews were conducted with two cohorts of trainees (three pre-FRCS and three post-FRCS).Six overarching themes emerged from thematic analysis of coded qualitative data – ‘insight’, ‘performance’, ‘simulation’, ‘stress’, ‘differentiation strategies’, and ‘assessment versus learning’.Gaining insight into the format, standard, marking scheme, and processes of the final FRCS examination were considered key elements of the educational value of the mock viva and these were perceived to be acquired through high fidelity simulation of the FRCS exam, with high quality feedback on performance. The opportunity to observe the assessment of others offered insight into one's performance relative to peers as well as insight the perspective of the examiner conducting the assessment.Whilst they acknowledged negative 'stress' factors associated with the mock viva, post-FRCS trainees underscored the benefits of learning from substandard performances; of reflecting on these experiences and on the feedback they received, and they suggested that junior trainees lacked insight into the educational value of what are often perceived to be ‘negative’ experiences. Junior trainees were concerned that the potential learning value of the mock viva process was limited by their clinical knowledge and experience in the early stage of training.These overarching themes point to areas which could be targeted to enhance the educational value of the mock viva and to address the paradox of poor uptake amongst junior trainees.