bluuebunny/crossref_metadata_2025_split huggingface dataset:
Transitivity of the εm
-relation on (m-idempotent) hyperrings
Authors: Norouzi Morteza , Cristea Irina 
Published: August 2018

Abstract
On a general hyperring, there is a fundamental relation, denoted γ
*, such that the quotient set is a classical ring. In a previous paper, the authors defined the relation εm
on general hyperrings, proving that its transitive closure

ε

m

∗

$\begin{array}{}
\displaystyle
\varepsilon^{*}_{m}
\end{array}$

is a strongly regular equivalence relation smaller than the γ
*-relation on some classes of hyperrings, such that the associated quotient structure modulo

ε

m

∗

$\begin{array}{}
\displaystyle
\varepsilon^{*}_{m}
\end{array}$

is an ordinary ring. Thus, on such hyperrings,

ε

m

∗

$\begin{array}{}
\displaystyle
\varepsilon^{*}_{m}
\end{array}$

is a fundamental relation. In this paper, we discuss the transitivity conditions of the εm
-relation on hyperrings and m-idempotent hyperrings.
Te lo tengo dicho muchas veces. Resultatives between coercion, relevance and reanalysis
Authors: Detges Ulrich 
Published: August 2018

AbstractThis paper deals with the question of how and why resultative constructions change into anteriors. This discussion will be based on synchronic data concerning tener + past participle, a resultative construction used in modern Spanish. One of the latter's most frequent is te lo tengo dicho 'I have (already) told you'. This is remarkable since decir 'to tell' is a non-transitional verb; te lo tengo dicho thus violates the requirement that resultatives should only combine with transitional verbs. In the literature, such mismatches between the semantics of a given construction and the meaning of its lexical filler have been claimed to normally trigger coercion, i.e. an inferential repair mechanism giving rise to special meaning effects. Thus, coercion - despite being conceived as a purely synchronic mechanism - is a prime candidate for an explanation of the change from resultative to anterior. In line with this hypothesis, occurrences of te lo tengo dicho are attested in my corpus where the latter is specified by quantifying adverbials such as muchas veces 'many times'. However, speaker judgements indiacte that even te lo tengo dicho muchas veces is not an iterative anterior construction, but still a resultative. Based on synchronic data taken from the CREA-corpus, it will be shown that in the vast majority of its occurrences, te lo tengo dicho is part of an dialogal discourse pattern where certain argumentative effects based on its resultative meaning are highly relevant. Crucially, therefore, in such "strong" uses a coercive shift towards an anterior meaning is excluded. On a more abstract level, it will be shown that coercion is controlled by pragmatic factors; in the case of te lo tengo dicho muchas veces, conceptual/semantic plausibility is systematically overridden by pragmatic relevance.
Toward an understanding of apparent suppletion in Romance pronominal possessives
Authors: Kayne Richard S. 
Published: August 2018

AbstractThe Italian pair*il luo librovs.il suo libro(‘the his/her book’) that is typical of Romance lends itself to an account of the first in terms of constraints also seen in the syntax of compounding, and to an account of the second that links itss-, despite initial appearances, to what we think of as Romance reflexives-. We might informally call this pair an instance of suppletion, as long as we recognize that calling it suppletion falls short of an account.
Fricative–affricate alternations in Catalan
Authors: Bonet Eulàlia , Lloret Maria-Rosa 
Published: August 2018

AbstractCatalan has a [ʒ] ~ [t͡ʃ] alternation that has traditionally been viewed as the consequence of final affrication of an underlying /ʒ/, a fortition operation, followed by general devoicing of obstruents. This interpretation has been held in classical generative rule-based approaches and also in autosegmental models, amounting either to a highly specific process or, when an attempt is made to generalize it, to wrong predictions; these shortcomings are also applicable to optimality-theoretic analyses. Following ideas in (Wheeler, Max W. 2005.The phonology of Catalan. Oxford: Oxford University Press), we propose that underlying affricates are subject to intervocalic lenition triggered by independently motivated general constraints. Sequences of a stop followed by a fricative can become affricates but cannot be affected by lenition. The interaction between affricates and gemination is also discussed.
Nominal ellipsis and prepositional modifiers in Portuguese: a phase-theoretic approach
Authors: Raposo Eduardo P. 
Published: August 2018

AbstractDefinite determiners in Portuguese are (pro)clitics. As such, they must attach to a full prosodic word at PF. This is achieved by an operation which “fuses” the determiner to the following lexical item. In anaphoric DPs with an elliptical noun modified by a prepositional phrase, fusion to a full preposition (P*) is not possible. This is accounted for by claiming that P*Ps are phases that are sent to Spell-Out as soon as they are formed (“early Spell-Out”); thus, they will not be accessible to fusion with the definite article at the phonological cycle of the higher phase and the derivation crashes because the definite article is not included in a prosodic word. PPs with the dummy prepositionde‘of’ can modify elliptical nouns since dummydeis arguably a morphological reflex of inherent Case assigned by the (elliptical) noun; thus, it does not constitute a phase together with its NP complement. The analysis is then extended to cases where the modifier of the elliptical noun is a clause.
Size and shape-controlled synthesis of Ru nanocrystals
Authors: Xu Linlin , Yang Jun 
Published: August 2018

AbstractMastery over the size/shape of nanocrystals (NCs) enables control of their properties and enhancement of their usefulness for a given application. Within the past decades, the development of wet-chemistry methods leads to the blossom of research in noble metal nanomaterials with tunable sizes and shapes. We herein would prefer to devote this chapter to introduce the solution-based methods for size and shape-controlled synthesis of ruthenium (Ru) NCs, which can be summarized into five categories: (i) Synthesis of spherical Ru NCs; (ii) synthesis of one-dimensional (1D) Ru NCs, e.g. wires and rods; (iii) synthesis of two-dimensional (2D) Ru NCs, e.g. nanoplates; (iv) synthesis of Ru NCs with hollow interiors and (v) synthesis of Ru NCs with other morphologies, e.g. chains, dendrites and branches. We aim at highlighting the synthetic approaches and growth mechanisms of these types of Ru NCs. We also introduce the detailed characterization tools for analysis of Ru NCs with different sizes/shapes. With respect to the creation of great opportunities and tremendous challenges due to the accumulation in noble metal nanomaterials, we briefly make some perspectives for the future development of Ru NCs so as to provide the readers a systematic and coherent picture of this promising field. We hope this reviewing effort can provide for technical bases for effectively designing and producing Ru NCs with enhanced physical/chemical properties.Graphical Abstract:The solution-based methods for size and shape-controlled synthesis of ruthenium nanocrystals as well as the mechanisms behind them are extensively reviewed.
Measurement uncertainty of coulometric trace humidity sensors
Authors: Tiebe Carlo , Detjens Marc , Banach Ulrich , Hübert Thomas 
Published: August 2018

Abstract
Especially trace amounts of water vapour in gases can be reliably determined by coulometric trace humidity sensors. The principle of these sensors is based on water vapour absorption in a hygroscopic layer and its subsequent electrolytic decomposition. The calibration of sensors was performed in the humidity range, expressed as frost point temperature, from

−
30

°
C

-30\hspace{0.1667em}^\circ \mathrm{C}

to

−
80

°
C

-80\hspace{0.1667em}^\circ \mathrm{C}

. This range is equivalent to volume fractions smaller than 376 µL·L−1. Generated humidity was measured with coulometric sensors and a chilled dew point hygrometer that was used as reference. An empirical non-linear function was found between sensor signal and measured reference humidity. This function consists of two parameters with a measurement uncertainty. Both calibration parameters were checked by means of one-way analysis of variance. It showed that gas specific function can be used for humidity measurement in nitrogen, hydrogen, dinitrogen monoxide, compressed and synthetic air. It is possible to determine trace humidity in all tested gases with an expanded uncertainty less than 2.1 K (coverage factor

k
=
2

k=2

) regarding frost point temperature.
Treatment of Pharmaceutical Process Wastewater with Hybrid Separation Method: Distillation and Hydrophilic Pervaporation
Authors: Toth Andras Jozsef , Haaz Eniko , Nagy Tibor , Tarjani Ariella Janka , Fozer Daniel , Andre Anita , Valentinyi Nora , Solti Szabolcs , Mizsey Peter 
Published: August 2018

Abstract
The work is motivated by an industrial problem, which is alcohol removal from pharmaceutical process wastewater. The aim of the study was to develop a complete hybrid operation is investigated. Ethanol dehydration, in combination with distillation and hydrophilic pervaporation, is used to investigate about the extent of separation of the ethanol-water mixture. The aim of this research is to rigorously model and optimize this hybrid operation in professional flowsheet simulator environment. The number of minimal theoretical plates of distillation column and minimal effective membrane transfer area are determined. Cost estimation is also examined according to Douglas methodology. Considering our results it can be concluded that, the distillation and hydrophilic pervaporation processes are suitable for separation ethanol and water in 99.5 weight percent purity
Conformational trimorphism of bis(2,6-dimesitylphenyl)ditelluride
Authors: Grabowsky Simon , Mallow Ole , Pal Rumpa , Pergandé Yves , Lork Enno , Näther Christian , Beckmann Jens 
Published: August 2018

AbstractBesides the previously known α-form (monoclinic,P21/c, Z=4) of bis(2,6-dimesitylphenyl)ditelluride, two new polymorphic modifications, namely the β-form (monoclinic,P21/c, Z=8) and the γ-form (triclinic,P1̅, Z=2), were obtained serendipitously during chemical reactions. In all three modifications, the individual molecules possess significantly different conformations and bond parameters, such as Te–Te bond lengths, C–Te–Te bond angles, C–Te–Te–C torsion angles and intramolecular Menshutkin interactions, which is also reflected in their non-covalent interactions with adjacent molecules in the crystal lattice via London dispersion and electrostatic forces. The interplay between intermolecular and intramolecular forces in these conformational polymorphs was investigated using quantum chemical calculations, which reveal that the β-form should be thermodynamically stable at absolute zero. In contrast, crystallization experiments and thermoanalytical investigations indicate that the α-form is stable at high temperatures and therefore, both forms might be related by enantiotropism.
Therapeutic Potential of CXCR4/SDF-1 Axis in Acute Myocardial Infarction
Authors: Toosi Shirin Hamedakbari , Behravan Javad , Heirani-Tabasi Asieh 
Published: August 2018

Acute Myocardial Infarction (AMI) is one of the mortal diseases which relate to heart and has many impacts on patients’ life. Stem cell therapy, including mesenchymal stem cells (MSCs), has emerged a promise treatment for patients with this disease. However, the inefficient migration and homing of MSCs have limited their therapeutic applications. It has been demonstrated that CXCR4/SDF-1 axis has a crucial role in cell migration and stem cell homing. So, many studies have conducted and currently are operating by novel methods to improve homing of MSCs by up-regulating the expression of CXCR4/SDF-1 axis to discover a proper cell therapy for AMI. CXCR4/SDF-1 axis triggers a variety of biological responses, such as directing cell migration, organogenesis, hematopoiesis, vascularization, and immune responses. Therefore, this axis might be a good candidate for manipulation with therapeutic purposes.
Relationship between Expression of EMT Transcription Factor of ZEB1 and CXCR4 Chemokine Receptor
Authors: Ahmadiankia Naghmeh 
Published: August 2018

Metastasis is one the most leading cause of death from cancer and the chemokine receptor of CXCR4 has a critical role in cancer metastasis. Moreover, metastasis is always correlated with epithelial-mesenchymal transition (EMT). In this study, the correlation between expression of EMT-TF of ZEB1 and CXCR4 has been examined. The results revealed that in ZEB1 knocked out cells, the expression of CXCR4 decreased significantly. This indicated that ZEB1 might be one of the regulators of CXCR4 expression.
A clinico-surgical outcome of vaginal hysterectomy with or without hydro dissection: a Quasi experimental study
Authors: Hurakadli Kirti M. , Pujari L. L. , G. Prashant 
Published: August 2018

Background: Vaginal hysterectomy -the signature operation of gynecologic profession, is a hallmark of gynecological extirpative hysterectomy surgery and surgical excellance1. In the era of minimal invasive surgery, Nondescent vaginal hysterectomy has evolved over the years and is opted over abdominal route. It is because of lower morbidity, less postoperative pain, more rapid return to normal activities and lesser hospital stay associated with this route of surgery. Practice of hydrodissection with diluted adrenalin has been noticed by few surgeons.Methods: We did a retrospective analysis of 267 cases of vaginal hysterectomies in our hospital over a period of three years, regarding the benefit of hydro dissection in reducing the blood loss and time of surgery, so as to incorporate this technique on routine basis.Results: Of 267 cases, NDVH was done in 107 (40.1%) cases, and 160 (59.9%) patients underwent vaginal hysterectomy with PFR. Of 267 cases, 121 (45.3%) cases had hydro dissection. In 146 (54.7%) cases hydro dissection was not done. The mean blood loss was significantly reduced in cases with hydro dissection to a mean of 1.07 mops when compared to cases with no hydro dissection-mean of 1.71 mops. Duration of surgery was also significantly reduced to a mean of 39.9 minutes in cases with hydro dissection when compared to cases with no hydro dissection with a mean of 46.3 minutes. There was no significant change in duration of hospital stay.Conclusions: Hydro dissection with diluted adrenaline should be routinely practice by all vaginal surgeons to reduce the duration of surgery and intraoperative blood loss.
An observational study to determine accuracy of various methods used to assign gestational age and correlate with outcome
Authors: Singhal Neha , Gupta Alka S. 
Published: August 2018

Background: Appropriate estimation of gestational age is paramount in obstetric care. Uncertain gestational age may lead to adverse pregnancy outcome like low birth weight, spontaneous or iatrogenic preterm delivery and perinatal mortality independent of maternal characteristics. In India, seeking of early medical attention in pregnancy is still not the norm. Three methods to estimate the estimated date of delivery are available, namely, menstrual history, clinical examination and by ultrasound. This study attempts to analyse the accuracy of the three methods used and their correlation with maternal and fetal outcome.Methods: 260 patients presenting to the outpatient department were enrolled irrespective of the gestational age but as soon as they got registered. Ultrasonography was advised if the patient did not have one. EDD was calculated by various methods and was recorded. If significant discrepancy existed, EDD was reassigned. Patients were followed up till the time of their delivery. After the delivery of the baby gestational age was assessed by the neonatologist and was compared with the gestational age at the time of delivery by the three methods. Maternal and fetal outcomes were compared in the form of avoided inductions and maturity of the baby at the time of delivery by all the three methods.Results: The kappa coefficient for the agreement between dating by ultrasound scan and neonatologist was 0.415 whereas for menstrual dates and clinical examination it was 0.197 and 0.369 respectively thus it can be interpreted that the accuracy of ultrasonography may be slightly better than menstrual dates and clinical examination. 75 patients required reassigning of EDD, Induction of labor for supposed post-term pregnancy was avoided in 13% of the patients.Conclusions: Ultrasonography was found to be accurate for determination of term /preterm/ post-term births followed by clinical examination and then the menstrual EDD. Induction of labor for supposed post-term pregnancy was avoided in 13% of the patients in whom EDD was ”assigned” thus stressing that EDD should be reassigned when there is discrepancy between menstrual EDD, Ultrasonography EDD and EDD by clinical examination.
Knowledge, attitude and practices about cervical cancer screening among nursing staff in rural tertiary care center
Authors: Vishwakarma Soniya , Rawat Rajani , Mittal Nupur , Shree Pragya 
Published: August 2018

Background: Cervical cancer is the second most common cancer among women worldwide. The knowledge and attitude of nursing personnel towards cervical cancer screening can grossly influence the community. As the doctor to patient ratio is low in India, staff nurses if trained can act both as health educators and service providers. Objectives of the study were to determine the baseline information about the knowledge of cervical cancer and explore attitude and practice of Pap smear screening among staff nurses.Methods: In this cross-sectional study sample of 100 nurses was selected randomly out of the total 445 nurses employed in the hospital at a rural tertiary care centre from August 2016 to October 2016. A self-administered, structured, open ended and pretested questionnaire comprising of questions on the general characteristics, awareness, perceptions and actual practices of nursing personnel was used to gather information about cervical screening.Results: In this study, 82% knew that Pap smear can detect cancer. About 48% knew that it can present as post-menopausal bleeding and 32% of the respondents knew that HPV is a risk factor for cancer cervix, but only 30% knew about HPV vaccine and only 35% have ever been screened.Conclusions: The study showed that, knowledge about cancer cervix, screening and practice of Pap smear is low among nursing staff. There is an urgent need for integration of cervical cancer prevention issues in the nurses existing training curriculum.
Uncomplicated post-dated pregnancy in one horn of bicornis bicollis uterus
Authors: Bedi Preet Kamal , Saini Arunima , Bhagat Nisha 
Published: August 2018

Mullerian anomalies result from abnormal fusion of mullerian ducts (paramesonephric ducts). The prevalence of 1-10% is seen in general population. Patients with uterine anomalies have chances of infertility, miscarriage, preterm labor, cervical incompetence and are an independent risk factor for uterine rupture. Just a few pregnancies are carried forward till term without any maternal and fetal complications. Here we report a rare case of bicornuate uterus bicollis that successfully conceived, carried her pregnancy beyond her expected date of delivery (4 days overdue) and delivered a full-term baby without any significant complications.
Does copper deficiency predispose children to otitis media with effusion?
Authors: Amizadeh Maryam , Molaei Moghbeli Sareh , Reihani-Kermani Hamed , Reihani Amir 
Published: August 2018

<p class="abstract"><strong>Background:</strong> Both otitis media with effusion (OME) and copper or selenium have been associated to the immune system, hence it could be proposed that cooper and/or selenium deficiency predisposes children to OME through immune cells dysfunction. The aim of this study was to determine the serum levels of Copper and Selenium in an immundeficient-linked disease - OME – in childhood.</p><p class="abstract"><strong>Methods:</strong> This cross-sectional study was conducted between July 2015 and December 2016 including 80 patients age 1 to 8 years old who were divided into two groups: otitis media with effusion (OME) consisted of 40 patients and the control (n=40). Patients who did not recover after three months conservative treatments were included. Serum levels of Copper and Selenium were measured using graphite furnace atomic absorption spectrometry. </p><p class="abstract"><strong>Results:</strong> Statistical analysis showed no significant differences regarding age and sex were noted between groups. Patients with OME had significantly lower serum copper levels than the control group (p=0.007). However, there was no statistically significant difference in serum selenium levels between groups. The analysis also showed a significant positive correlation between serum copper level and age (correlation coefficient=0.348, p=0.028), whereas, there was no correlation between the measured selenium level and age.</p><p class="abstract"><strong>Conclusions:</strong> The results of the present study showed that serum level of copper might play a role on development of otitis media with effusion in childhood.</p>
Study of anatomical variations of ostiomeatal complex in chronic rhinosinusitis patients
Authors: Senniappan Shivakumar , Raja Komathi , Tomy Ammu Lizbeth , Kumar Chinnu Sudha , Panicker Anjali Mahendra , Radhakrishnan Shankar 
Published: August 2018

<p class="abstract"><strong>Background:</strong> Anatomical variations like nasal septal deviations, concha bullosa, paradoxical middle turbinate, pneumatized or medially bent uncinate etc. can encroach upon the ostiomeatal unit and narrow ostiomeatal channels. The aim of the study was to study the anatomical variations of ostiomeatal complex commonly associated with paranasal sinus disease among patients with chronic sinusitis using computed tomography.</p><p class="abstract"><strong>Methods:</strong> A prospective longitudinal study was conducted in the ENT department of our hospital for a period of one year. All the adult patients with complaints suggestive of chronic rhinosinusitis for a period of more than 12 weeks, patients with acute exacerbation of chronic rhinosinusitis and with persistent chronic rhinosinusitis requiring surgical intervention are included in our study. Based on our inclusion and exclusion criteria a total of 138 patients were involved in the study. </p><p class="abstract"><strong>Results:</strong> In our study we saw the association between various sinusitis and the anatomic variations of the ostiomeatal complex and we found that concho bullosa found to have a strong significant association with maxillary sinusitis (43.6%) and anterior ethmoid sinusitis (42.1%). Most of the patients with posterior ethmoid sinusitis (53.8%) had a statistical significant association in developing deviated nasal septum type of anatomical variant and majority of the patients with sphenoidal sinusitis had a onodi cell type of anatomical variant and their association was found to be statistical significant (p&lt;0.05).</p><p><strong>Conclusions:</strong> The importance of CT scan and nasal endoscopy is emphasized in patients with persistent symptoms to identify the anatomical variations that may contribute to the development of chronic sinus mucosal disease. </p>