bluuebunny/crossref_metadata_2025_split huggingface dataset:
Vascular access care in patients with multimorbidity
Authors: Armenteros-Yeguas Victoria , Tomás-López Maria Aranzazu , Miranda-Serrano Erika , Moraza-Dulanto Inmaculada , Meléndez-Fernández Lara , Merino-Romero Eva , Cristóbal-Domínguez Estíbaliz , Gárate-Echenique Lucía 
Published: April 2021

Background: More than half of patients with multimorbidity require intravenous therapy during their hospital stay. The aims of this study are to describe difficult intravenous access (DIVA) and vascular access care provided to this patient population and to explore the differences between easy and DIVA groups. Methods: A cohort study was conducted in patients with multimorbidity admitted to 2 hospitals between March and November 2013. The variables used to describe vascular care included choice and placement of devices, catheter swell time, and occurrence of adverse events. The incidence of adverse events was expressed as number cases per 1000 catheter days and χ2, Student's t, or Mann-Whitney U tests were used to compare the care provided between both groups. Odds rates were calculated to determine the risk of complications associated with DIVA. Results: We recruited 135 patients, of whom 34.8% were women. Overall, 59.3% had DIVA. A total of 224 catheters were inserted, patients with difficult access requiring a mean of 1.71 catheters and those with easy access 1.58 catheters. Two or more attempts were required to place catheters in 23% of cases in the difficult access group versus 2.50% in the easy access group. Mean catheter dwell time was 3.84 days and 3.99 days, and the adverse event rate was 111/1000 and 83.6/1000 catheter days, respectively. The odds ratio for complications was 1.596. Conclusions: Multimorbid patients with DIVA have a higher rate of complications as well as requiring more catheters and more placement attempts.
Subpicosecond magneto-optical response probed by the Kerr rotation technique in PbI2 film
Authors: Ma Hong , Miao Xiaona , Xiang Guangbiao , Li Liangjun , Leng Jiancai , Wu Bo , Cheng Chuanfu 
Published: April 2021

The ultrafast optical dynamics in solution-processed

P
b
I

2

film on quartz substrate around the band edge have been systematically studied by transient reflectance spectroscopy and femtosecond resolved Kerr rotation spectroscopy at room temperature. The Kerr rotation angle shows a maximum at the excitonic photobleaching peak and increases with the pump fluence until reaching a saturation value of

∼

0.8

d
e
g

(

∼

4

d
e
g

/

µ

m

), which is on the same order as that for

C
H

3

N
H

3

P
b
I

3

perovskite film. The spin lifetime gradually decreases from 2.24 to 0.48 ps when increasing the pump fluence from 13 to

234

µ

J

/

c
m

2

, which is attributed to the strong spin-orbital coupling and the dominance of the Elliot–Yafet process in spin relaxation. Our findings suggest that

P
b
I

2

film is a promising candidate for ultrafast spin switching with a subpicosecond time scale and optical isolator in optical communications owing to the giant rotation angle.
Sub-five-optical-cycle pulse generation from a Kerr-lens mode-locked Yb:CaYAlO4 laser
Authors: Ma Jie , Yang Fan , Gao Wenlan , Xiaodong Xu , Jun Xu , Shen Deyuan , Tang Dingyuan 
Published: April 2021

Direct generation of ultrashort few-optical-cycle pulses in various wavelength regions has attracted great attention in recent decades. In this paper, generation of less than five-optical-cycle pulses from a Kerr-lens mode-locked

Y
b

:

C
a
Y
A
l
O

4

laser is demonstrated. Pumped by a 976 nm fiber laser, stable near-Fourier-transform-limited ultrashort soliton pulses centered around 1080 nm with a repetition rate of

∼

113.7

M
H
z

were obtained. The obtained pulses have a pulse duration as short as 17 fs if a

S
e
c
h

2

-shaped pulse profile is assumed, corresponding to about 4.68 optical cycles. To the best of our knowledge, this is the shortest pulse directly generated from mode-locked rare-earth-doped solid-state oscillators.
Das Service Design Framework zur strukturierten Entwicklung datenbasierter Services
Authors: Häckel Björn , Huber Rocco , Rieg Marius , Rösch Carla , Rövekamp Patrick 
Published: April 2021

ZusammenfassungDie Digitalisierung prägt das Umfeld von Unternehmen vor allem durch neue technologische Entwicklungen in der Erfassung und Speicherung großer Datenmengen – auch bekannt als Big Data. Dies ermöglicht Unternehmen, datenbasierte Services zu entwickeln und somit ihr bestehendes Geschäftsmodell zu erweitern oder sogar neu zu gestalten. Allerdings unterscheiden sich die Anforderungen für die Entwicklung datenbasierter Services maßgeblich von denen für die Entwicklung klassischer Produkte und Services, weshalb viele Unternehmen vor einem Paradigmenwechsel stehen. Da Daten selbst kein inhärentes Wertversprechen haben, müssen für die erfolgreiche Entwicklung eines datenbasierten Service neben (daten-)technischen Anforderungen auch prozessuale Anforderungen sowie eine kundenzentrische Perspektive integriert betrachtet werden. Dies ist entscheidend, da Services kundenorientiert gestaltet werden müssen, um ein entsprechendes Wertversprechen zu vermitteln. Obwohl die Relevanz dieser Herausforderung sowohl in der Wissenschaft als auch in der Praxis bereits bekannt ist, existieren bis heute kaum anwendungsorientierte und keine umfassenden Konzepte für dieses Spannungsfeld. Um diese Lücke zu schließen, wird im vorliegenden Beitrag das Service Design Framework vorgestellt, welches Unternehmen bei der systematischen Entwicklung datenbasierter Services unterstützt. Dabei strukturiert das Framework zentrale Anforderungen (z. B. Kundenbedürfnisse, Prozesse, Daten, Chancen und Risiken) zum Design eines datenbasierten Service. Das Framework wurde mithilfe aktueller Literatur und in Zusammenarbeit mit Experten aus Industrieunternehmen entwickelt und validiert. Das Service Design Framework baut dabei auf den Konzepten der Customer Journey Map und des Service Blueprints auf, kombiniert diese und entwickelt sie für ein umfassendes Design von datenbasierten Services weiter. Damit leistet das Framework einen wichtigen Beitrag bei der strukturierten Erfassung, Entwicklung und Analyse datenbasierter Services.
Relationship between childhood physical abuse and clinical severity of treatment-resistant depression in a geriatric population
Authors: Yrondi Antoine , Arbus Christophe , Bennabi Djamila , D’Amato Thierry , Bellivier Frank , Bougerol Thierry , Camus Vincent , Courtet Philippe , Doumy Olivier , Genty Jean-Baptiste , Holtzmann Jérôme , Horn Mathilde , Lancon Christophe , Leboyer Marion , Llorca Pierre-Michel , Maruani Julia , Moirand Rémi , Molière Fanny , Petrucci Jean , Richieri Raphaelle , Samalin Ludovic , Stephan Florian , Vaiva Guillaume , Walter Michel ,   FondaMental Advanced Centres of Expertise in Resistant Depression (FACE-DR) Collaborators, Haffen Emmanuel , Aouizerate Bruno , El-Hage Wissam 
Published: April 2021

Introduction
We assessed the correlation between childhood maltreatment (CM) and severity of depression in an elderly unipolar Treatment-Resistant Depression (TRD) sample.

Methods
Patients were enrolled from a longitudinal cohort (FACE-DR) of the French Network of Expert TRD Centres.

Results
Our sample included 96 patients (33% of the overall cohort) aged 60 years or above, with a mean age of 67.2 (SD = 5.7). The majority of the patients were female (62.5%). The Montgomery and Asberg Depression Rating Scale (MADRS) and Quick Inventory Depression Scale-Self Report (QIDS-SR) mean scores were high, 28.2 (SD = 7.49) [MADRS score range: 0–60; moderate severity≥20, high severity≥35] and 16.5 (SD = 4.94) [IDS-SR score range: 0–27; moderate severity≥11, high severity≥16], respectively. Mean self-esteem scores were 22.47 (SD = 6.26) [range 0–30]. In an age- and sex-adjusted model, we found a positive correlation between childhood trauma (CTQ scores) and depressive symptom severity [MADRS (β = 0.274; p = 0.07) and QIDS-SR (β = 0.302; p = 0.005) scores]. We detected a statistically significant correlation between physical abuse and depressive symptom severity [MADRS (β = 0.304; p = 0.03) and QIDS-SR (β = 0.362; p = 0.005) scores]. We did not observe any significant correlation between other types of trauma and depressive symptom severity. We showed that self-esteem (Rosenberg scale) mediated the effect of physical abuse (PA) on the intensity of depressive symptoms [MADRS: b = 0.318, 95% BCa C.I. [0.07, 0.62]; QIDS-SR: b = 0.177, 95% BCa C.I. [0.04, 0.37]]. Preacher & Kelly’s Kappa Squared values of 19.1% (k2 = 0.191) and 16% (k2 = 0.16), respectively for the two scales, indicate a moderate effect.

Conclusion
To our knowledge, this is the first study conducted in a geriatric TRD population documenting an association between childhood trauma (mainly relating to PA) and the intensity of depressive symptoms.
Podcasts no jornalismo português – o caso P24
Authors: Martins Ruben Lopes , Vieira Jorge 
Published: April 2021

A existência de um podcast diário trouxe à redação do jornal Público um espaço complementar onde os jornalistas podem aprofundar as suas histórias através do áudio. Entre 9 de Abril de 2019 e 17 de Julho de 2020, o jornal produziu 300 episódios do podcast P24, destacando-se os temas ligados às secções de internacional (conhecida no jornal como “mundo”), política e sociedade. Neste artigo analisamos os conteúdos produzidos neste universo temporal e a evolução da sua audiência, temáticas e protagonistas.
Este podcast, lançado inicialmente com financiamento do fundo Digital News Innovation Fund da Google, abriu também espaço para a criação de uma estratégia de podcasting no jornal. Ainda assim, o áudio continua a ser um parente pobre dentro do espaço dos jornais online (Reis, 2018).
Maternal visual perception of children’s nutritional status and feeding style
Authors: Dalimunthe Ikromi , Sembiring Tiangsa , Evalina Rita 
Published: April 2021

Background Mothers’ visual perception is an important determinant for their children’s nutritional status. Visual perception of their children’s nutritional status is believed to drive mothers to modify or apply certain feeding styles, which influence the probability of either optimal growth or malnutrition.
Objective To determine if maternal visual perception of children’s nutritional status influences maternal feeding style.
Methods The study was conducted in 3 kindergartens in Medan, North Sumatera, involving children aged 4-5 years and their mothers. Mothers filled three-part questionnaires, consisting of basic information, a series of body image sketches by a graphic artist to assess maternal visual perception, and the Parental Feeding Style Questionnaire (PFSQ) to assess maternal feeding style. Children’s body heights and weights were measured to assess their nutritional status.
Results A total of 102 subjects were eligible for this study. Surprisingly, more than half of the mothers involved in our study misinterpreted their children nutritional status. Thus, there was no significant relationship between maternal visual perception, nor maternal misperception, and maternal feeding style. In fact, mothers tended to encourage their children to eat when they considered their children to have normal nutritional status.
Conclusion Mothers’ visual perception does not influence feeding practice.
Virologic and immunologic status of children with HIV-TB co-infections
Authors: Setiabudi Djatnika , Cesilia Citra , Aliyannissa Almira , Nataprawira Heda Melinda 
Published: April 2021

Background Studies about virologic and immunologic status of HIV children are lacking. Tuberculosis (TB) is the most common opportunistic infection in HIV patients and co-infection is associated with much worse prognosis.
Objective To describe the virologic and immunologic status of patients with HIV and TB co-infection, before and after HIV and TB treatment.
Methods A prospective study was conducted in HIV co-infected with TB patients in an Indonesian tertiary hospital between November 2016—December 2018. Viral load and CD4 levels were performed at diagnosis and after 6 months of HIV and TB treatment.
Results Of 44 children hospitalized due to HIV, 15 newly diagnosed HIV cases had TB co-infection. Thirteen were included as subjects. Most patients (10/13) were under 5 years of age, with similar female and male proportions (7/13 vs. 6/13, respectively). All were diagnosed with stage 4 HIV. Six patients had respiratory problems at admission. First examinations revealed severe immunodeficiency (CD4+ <20%) in all patients, and high viral loads (>105 copies/mL) in most (9/13) patients. Despite good compliance to medications, 8/13 patients died before the sixth month follow-up. Deterioration of virologic and immunologic status was seen in 3/4 of the followed-up patients.
Conclusion Children with HIV-TB coinfections have severe immunodeficiency and high viral loads. Most such patients die before 6 months, while survivors experience virologic and immunologic status deterioration. Future study must take into account for HIV drug resistance investigation.
Sales and operations planning: learnings from 15 Brazilian companies
Authors: Seeling Marcelo Xavier , Panitz Carlos Eduardo , Cassel Ricardo Augusto 
Published: April 2021

ABSTRACT
Goal: The goal of this paper is to investigate 15 Brazilian companies, which execute S&OP cycles periodically, in order to characterize the processes implemented and discuss challenges and improvement opportunities.
Methodology: Initially, a multiple-case study approach is applied embracing 15 Brazilian companies. Then, a survey is conducted in the same organizations to deepen the investigation. Two recognized S&OP frameworks from the literature are used to structure the research.
Results: Some of the main research findings include: some companies consider “Data Gathering” a normal task and no longer a S&OP cycle step; some organizations include a new step one named “Portfolio Management”, preceding “Demand Planning” to leverage step two’s outcomes; there are improvement opportunities identified in “Pre-meeting” and “Executive Meeting” steps regarding capacity to simulate different scenarios from a financial perspective; and most of the studied companies do not adopt a S&OP software facing limitations to manage information and perform what-if analysis.
Research Limitations: Only companies located in Brazil are investigated.
Practical implications: The study provides useful information for practitioners on the characterization of the S&OP process, implementation challenges, and improvement opportunities.
Originality / Value: The paper applies different research methods (multiple-case study and survey) and two recognized frameworks from the literature in the study of the S&OP process performed by 15 companies, providing a broad characterization of the processes implemented and valuable findings about challenges and improvement opportunities. Although all the researched companies are Brazilian, evidences indicate the results are generalizable.
Patterns for gridshells with negligible geometrical torsion at nodes
Authors: Tellier Xavier , Boutillier Romane , Douthe Cyril , Baverel Olivier 
Published: April 2021

Abstract
Curved envelope structural building envelopes have been quite popular in architecture in the past decades, and pose many challenges in their design, manufacturing and planning. In gridshells, a popular structural morphology for curved structure, designers will often strive to orient beams such that their top face is parallel to the envelope surface. However, this tends to induce geometrical torsion along the beam centerline, which complexifies significantly the manufacturing of the connection nodes or of the beams themselves. It is well known that such issue can be avoided by aligning beams with principal curvature directions of the envelope surface, thus yielding a quadrangular paneling. In this article, we study how other types of patterns (non-quadrangular) can be used to design torsion-free grid-shells. Based on asymptotic considerations, we derive a set of geometrical rules which, if fulfilled by a pattern, insure that a surface can be covered by this pattern with negligible torsion and limited deviation of beams from surface normals. A wide variety of patterns fulfill these rules, offering interesting possibilities for the design of curved architectural envelopes (Figure 1) is shown. As these rules are based on first order asymptotic analysis, we perform global validation on case studies. One main application is for structures in which face planarity is not necessary, for example ones cladded with ETFE cushions.
Asphaltene precipitation from heavy oil mixed with binary and ternary solvent blends
Authors: Rivero-Sanchez Javier A. , Ramos-Pallares Francisco , Schoeggl Florian F. , Yarranton Harvey W. 
Published: April 2021

Abstract
Models are required to predict the onset and precipitation of asphaltenes from mixtures of heavy oil and solvents for a variety of heavy oil applications. The regular solution approach is well suited for this objective but has not yet been tested on solvent mixtures. To do so, the onset and amount of asphaltene precipitation were measured and modeled for mixtures of heavy oil with solvent blends made up from n-alkanes, cyclohexane, and toluene at temperatures of 21 and 180 °C and pressures of 0.1 and 10 MPa. Temperature dependent binary interaction parameters (BIP) between the cyclohexane/asphaltene and toluene/asphaltene pseudo-component pairs were proposed to match the data. All other BIP were set to zero. The model with BIP determined from asphaltene precipitation in heavy oil and binary solvents predicted asphaltene precipitation from heavy oil and ternary solvent blends, generally to within the experimental error.
Are sniffer dogs a reliable approach for diagnosing SARS-CoV-2 infection?
Authors: Lippi Giuseppe , Mattiuzzi Camilla , Henry Brandon M. 
Published: April 2021

Abstract

Objectives
Despite inter-individual variations in their diagnostic efficiency, dogs have been trained to investigate many human pathologies, especially cancer, diabetes, migraine, seizures and even infectious diseases. To this end, we performed a critical review and pooled analysis of current scientific literature on the performance of dogs trained for identifying severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-positive human specimens.

Methods
We carried out an electronic search in PubMed, Scopus and Web of Science with the keywords “dog(s)” AND “sniffer” OR “scent” OR “smell” AND “SARS-CoV-2” OR “severe acute respiratory syndrome coronavirus 2” OR “coronavirus disease 2019” OR “COVID-19” within all fields, without date or language restrictions, to identify studies describing dogs’ performance for identifying SARS-CoV-2 infected material.

Results
Three studies could be finally included in pooled analysis, totaling 17 dogs (47% females), aged between 0.5 and 12 years. The pooled diagnostic sensitivity was 0.88 (95% CI, 0.84–0.91; I2, 85.3%), the diagnostic specificity 0.99 (95% CI, 0.99–0.99; I2, 97.4%), whilst the area under the summary receiver operating characteristic curve (SROC) was 0.979 (standard error, 0.003).

Conclusions
The notable performance observed in this pooled analysis would persuade us to suggest that adequately trained dogs could represent an intriguing and sustainable resource for purposes of rapid SARS-CoV-2 mass screening.
Prediction of hot metal temperature based on data mining
Authors: Jun Zhao , Xin Li , Song Liu , Kun Wang , Qing Lyu , Erhao Liu 
Published: April 2021

Abstract
Accurately and continuously monitoring the hot metal temperature status of the blast furnace (BF) is a challenging job. To solve this problem, we propose a hot metal temperature prediction model based on the AdaBoost integrated algorithm using the real production data of the BF. We cleaned the raw data using the data analysis technology combined with metallurgical process theory, which mainly included data integration, outliers elimination, and missing value supplement. The redundant features were removed based on Pearson’s thermodynamic diagram analysis, and the input parameters of the model were preliminarily determined by using recursive feature elimination method. We built the hot metal temperature prediction model using the AdaBoost ensemble algorithm on a dataset with selected features as well as derived features by using K-mean clustering tags. The results show that the performance of the hot metal temperature prediction model with K-means clustering tags has been further improved, and the accurate monitoring and forecast of molten iron temperature has been achieved. The model can achieve an accuracy of more than 90% with an error of ±5°C.
Wide band fiber systems and long transmission applications based on optimum optical fiber amplifiers lengths
Authors: Eid Mahmoud M. A. , Sorathiya Vishal , Lavadiya Sunil , Said Abd El-Hamid Huda , Rashed Ahmed Nabih Zaki 
Published: April 2021

Abstract
Article clarified the optimum fiber amplifiers length for wide band fiber system applications. Optical suppressed carrier transceiver with various fiber amplifier lengths in long haul applications is simulated by using optisystem simulation program version 13. Max. Q coefficient and min. BER can be tested for various fiber amplifiers lengths from 5 to 30 m. The optimum performance efficiency is achieved with 5 m amplifier length which the max. Q coefficient is 62.5 and bits error rate is tended to zero. Peak power amplitude level, noise signal power level, noise signal amplitude level (NSAL) and peak signal amplitude level after channel with a 45 km length for optimum fiber optic amplifier length of 5 m are measured.
The expression of habituality in Biblical Hebrew
Authors: Boneh Nora , Sofer Hagit 
Published: April 2021

AbstractThe aim of the article is to expand the crosslinguistic scope of the study of the expression of habituality in language, and to provide further support for the claim that the expression of habituality is basically independent from that of tense and aspect, although it closely interacts with it. The argument for this independence is based on the following findings: First, habituality in Biblical Hebrew is not marked morphologically: any verbal form of the verb system can serve as a basis to express habituality irrespective of its aspectual and temporal qualities. In this respect, the periphrastic formhāyā qōṭēlreceives special attention, since although it does not appear in episodic occurrences, it nevertheless patterns with non-recurring positional predicates (e.g.,stand, liveas inShe used to live here), illustrating that it selects statives that can hold over prolonged periods of time, subsuming habituals, rather than being exclusively dedicated to the expression of habituality. Second, and most importantly, this pattern is diachronically stable. When observing Early and Late Biblical Hebrew, nothing alters in the way verbal forms pattern in clauses expressing habituality, even though the make-up of the verbal systems has changed over time. Additionally, the findings confirm the importance of paying attention to the availability of habitual interpretation with and without a modifying quantificational expression, by lending support to the correlation established between the bareness of habituals and their aspectual properties.