bluuebunny/crossref_metadata_2025 huggingface dataset:
Upper body posture in Latin American dancers: a quantitative cross-sectional study comparing different postures
Authors: Wanke Eileen M. , Mörl-Kreitschmann Manja , Holzgreve Fabian , Groneberg David , Ohlendorf Daniela
Published: April 2023

Background

In Latin American dance sport (LD), the shoulder girdle and the torso area are particularly stressed due to the dance style specific requirements. The aim of the study was to define differences in various dance specific upper body postures in Latin American dancers and to show gender-specific differences.

Methods

Three dimensional back scans were performed in n = 49 dancers (28 f/21 m). Five typical trunk positions in Latin American dance (habitual standing and 4 dance specific positions, P1–P5) were compared with each other. Statistical differences were calculated using the Man-Whitney U test, Friedmann test, Conover-Iman test and a Bonferroni-Holm correction.

Results

Significant gender differences were found in P2, P3 and P4 (p ≤ 0.01–0.001). In P5, the frontal trunk decline, the axis deviation, the standard deviation of the rotation, the kyphosis angle and the shoulder as well as the pelvic rotation were also significantly different. The comparison of the postures showed significant differences between postures 1–5 (p ≤ 0.01–0.001) in the males, (scapular height, right and left scapular angles and pelvic torsion). Similar results were observed for the female dancers, with only the parameters of frontal trunk decline with the lordosis angle as well as the right and left scapular angles being non-significant.

Conclusions

This study is an approach to better understand the involved muscular structures in LD. Performing LD changes the static parameters of the upper body statics. Further projects are needed to analyse the field of dance even more thoroughly.
Identification of four novel large deletions and complex variants in the α-globin locus in Chinese population
Authors: Bao Xiuqin , Wang Jicheng , Qin Danqing , Yao Cuize , Liang Jie , Liang Kailing , Zeng Yukun , Du Li
Published: April 2023

Background

At present, the methods generally used to detect α-thalassemia mutations are confined to detecting common mutations, which may lead to misdiagnosis or missed diagnosis. The single-molecule real-time (SMRT) sequencing enables long-read single-molecule sequencing with high detection accuracy, and long-length DNA chain reads in high-fidelity read mode. This study aimed to identify novel large deletions and complex variants in the α-globin locus in Chinese population.

Methods

We used SMRT sequencing to detect rare and complex variants in the α-globin locus in four individuals whose hematological data indicated microcytic hypochromic anemia. However, the conventional thalassemia detection result was negative. Multiplex ligation-dependent probe amplification and droplet digital polymerase chain reaction were used to confirm SMRT sequencing results.

Results

Four novel large deletions were observed ranging from 23 to 81 kb in the α-globin locus. One patient also had a duplication of upstream of HBZ in the deletional region, while another, with a 27.31-kb deletion on chromosome 16 (hg 38), had abnormal hemoglobin Siriraj (Hb Siriraj).

Conclusion

We first identified the four novel deletions in the α-globin locus using SMRT sequencing. Considering that the conventional methods might lead to misdiagnosis or missed diagnosis, SMRT sequencing proved to be an excellent method to discover rare and complex variants in thalassemia, especially in prenatal diagnosis.
Prevalence and risk distribution of schistosomiasis among adults in Madagascar: a cross-sectional study
Authors: Gruninger Sarah Katharina , Rasamoelina Tahinamandranto , Rakotoarivelo Rivo Andry , Razafindrakoto Anjarasoa Ravo , Rasolojaona Zaraniaina Tahiry , Rakotozafy Rodson Morin , Soloniaina Patrick Richard , Rakotozandrindrainy Njary , Rausche Pia , Doumbia Cheick Oumar , Jaeger Anna , Zerbo Alexandre , von Thien Heidrun , Klein Philipp , van Dam Govert , Tannich Egbert , Schwarz Norbert Georg , Lorenz Eva , May Jürgen , Rakotozandrindrainy Raphael , Fusco Daniela
Published: April 2023

Background

The goal to eliminate the parasitic disease of poverty schistosomiasis as a public health problem is aligned with the 2030 United Nations agenda for sustainable development goals, including universal health coverage (UHC). Current control strategies focus on school-aged children, systematically neglecting adults. We aimed at providing evidence for the need of shifting the paradigm of schistosomiasis control programs from targeted to generalized approaches as key element for both the elimination of schistosomiasis as a public health problem and the promotion of UHC.

Methods

In a cross-sectional study performed between March 2020 and January 2021 at three primary health care centers in Andina, Tsiroanomandidy and Ankazomborona in Madagascar, we determined prevalence and risk factors for schistosomiasis by a semi-quantitative PCR assay from specimens collected from 1482 adult participants. Univariable and multivariable logistic regression were performed to evaluate odd ratios.

Results

The highest prevalence of S. mansoni, S. haematobium and co-infection of both species was 59.5%, 61.3% and 3.3%, in Andina and Ankazomborona respectively. Higher prevalence was observed among males (52.4%) and main contributors to the family income (68.1%). Not working as a farmer and higher age were found to be protective factors for infection.

Conclusions

Our findings provide evidence that adults are a high-risk group for schistosomiasis. Our data suggests that, for ensuring basic health as a human right, current public health strategies for schistosomiasis prevention and control need to be re-addressed towards more context specific, holistic and integrated approaches.
Analytic formula for the group velocity and its derivatives with respect to elastic moduli for a general anisotropic medium
Authors: Wang Di , Bai Chao-Ying , Li Xing-Wang , Hu Jing
Published: April 2023

Studying the anisotropy of seismic wave velocity can provide a theoretical basis for understanding the characteristics of seismic wave propagation in anisotropic media, such as forward modeling of seismic wavefield and simultaneous inversion of anisotropic parameters. It is an important work to calculate the group velocities of three kinds of seismic waves (qP, qS1, and qS2) and the analytical expressions of the partial derivatives of the group velocities with respect to 21 elastic parameters in general anisotropic media. Therefore, a new relationship between the phase and group velocity in the general anisotropic medium is introduced first, and then the analytical expressions of the group velocity of three kinds of waves are deduced. Then, the analytical formulas of partial derivatives of the group (or phase) velocity with respect to 21 elastic parameters are derived. Finally, the distribution of partial derivatives of group slowness with respect to 21 elastic parameters with varied ray angles is analyzed and discussed. The final analytical expressions of group velocity and its partial derivatives are relatively concise and can deal with the singular points and multivalued problems of qS waves. By drawing comparison to the numerical solution of the eigenvector method, the accuracy of the analytical formula of group velocity and its partial derivatives with respect to elastic parameters are verified. The numerical simulation results indicate that the algorithm can accurately obtain the partial derivatives of group slowness with respect to 21 elastic parameters and would provide a theoretical basis for seismic ray tracing and traveltime inversion in general anisotropic media.
The Clinicogenomic Landscape of Induction Failure in Childhood and Young Adult T-Cell Acute Lymphoblastic Leukemia
Authors: O'Connor David , Demeulemeester Jonas , Conde Lucia , Kirkwood Amy , Fung Kent , Papaleonidopoulou Foteini , Bloye Gianna , Farah Nadine , Rahman Sunniyat , Hancock Jeremy , Bateman Caroline , Inglott Sarah , Mee Jon , Herrero Javier , Van Loo Peter , Moorman Anthony V. , Vora Ajay , Mansour Marc R.
Published: April 2023

PURPOSE

Failure to respond to induction chemotherapy portends a poor outcome in childhood acute lymphoblastic leukemia (ALL) and is more frequent in T-cell ALL (T-ALL) than B-cell ALL. We aimed to address the limited understanding of clinical and genetic factors that influence outcome in a cohort of patients with T-ALL induction failure (IF).

METHODS

We studied all cases of T-ALL IF on two consecutive multinational randomized trials, UKALL2003 and UKALL2011, to define risk factors, treatment, and outcomes. We performed multiomic profiling to characterize the genomic landscape.

RESULTS

IF occurred in 10.3% of cases and was significantly associated with increasing age, occurring in 20% of patients age 16 years and older. Five-year overall survival (OS) rates were 52.1% in IF and 90.2% in responsive patients ( P < .001). Despite increased use of nelarabine-based chemotherapy consolidated by hematopoietic stem-cell transplant in UKALL2011, there was no improvement in outcome. Persistent end-of-consolidation molecular residual disease resulted in a significantly worse outcome (5-year OS, 14.3% v 68.5%; HR, 4.10; 95% CI, 1.35 to 12.45; P = .0071). Genomic profiling revealed a heterogeneous picture with 25 different initiating lesions converging on 10 subtype-defining genes. There was a remarkable abundance of TAL1 noncoding lesions, associated with a dismal outcome (5-year OS, 12.5%). Combining TAL1 lesions with mutations in the MYC and RAS pathways produces a genetic stratifier that identifies patients highly likely to fail conventional therapy (5-year OS, 23.1% v 86.4%; HR, 6.84; 95% CI, 2.78 to 16.78; P < .0001) and who should therefore be considered for experimental agents.

CONCLUSION

The outcome of IF in T-ALL remains poor with current therapy. The lack of a unifying genetic driver suggests alternative approaches, particularly using immunotherapy, are urgently needed.
William Falconer's “Sons of Neptune”: The Merchant Service, the Royal Navy, and The Shipwreck
Authors: Banister Julia
Published: April 2023

One month after the publication of his poem on merchant seafaring, The Shipwreck (1762), William Falconer left merchant sailing to become a junior officer in the Royal Navy. In the midcentury, many commentators believed that the Royal Navy's sailors were superior to merchant sailors. Falconer's response can be traced by contrasting his first edition of The Shipwreck with the revisions he made to the poem after joining the Royal Navy. The revisions address directly the notion that merchant sailors value only financial reward, but then focus on the notion that sailors who fight for king and country are braver than those who move cargo. In the revised narrative of the sailors’ battle with the elements, Falconer emphasizes the physical limits to their bravery, and thus suggests that merchant sailors are like Royal Navy sailors because all sailors are equally vulnerable to storms at sea.
Διαγνωστική ευκρίνεια της υστεροσκόπησης σε σχέση με το μέσο διάτασης συγκρινόμενη με το ιστολογικό αποτέλεσμα
Authors: Καπώνης Απόστολος
Published: April 2023

Σκοπός: Απαραίτητη προϋπόθεση για την πραγματοποίηση της διαγνωστικής υστεροσκόπhσης είναι η επαρκής διάταση της ενδομητρικής κοιλότητας. Τα μέσα διάτασης που χρησιμοποιούνται για το σκοπό αυτό είναι το CO2 και ο φυσιολογικός ορός (0.9% NaCl). Σκοπός της παρούσας διδακτορικής διατριβής είναι η σύγκριση της διαγνωστικής ικανότητας που παρέχουν στην υστεροσκόπιση τα δύο αυτά μέσα διάτασης. Υλικό–Μέθοδος: Σχεδιάστηκε μια προοπτική, τυχαιοποιημένη μελέτη παρατήρησης στην οποία σε ασθενής που προσέρχοταν στην Μαιευτική–Γυναικολογική Κλινική της Ιατρικής Σχολής του Πανεπιστιμίου Ιωαννίνων τηv τριετία 1999-2001 προκειμένου να υποβληθούν σε κοιλιακή ολική υστερεκτομία, 12-24 ώρες πρίν τη χειρουργική επέμβαση γινόταν διαγνωστική υστεροσκόπιση. Η επιλογή του μέσου διάτασης έγινε με τυχαιοποιημένο τρόπο. Οι ασθενείς καλούνταν να επιλέξουν μεταξύ δύο κλειστών φακέλων όπου ο ένας περιέκλειε την ένδειξη 1, που αντιστοιχούσε στο CO2 και ο άλλος την ένδειξη 2, που αντιστοιχούσε στο NaCl. Σχηματίστηκαν δύο ομάδες ασθενών, η ομάδα A (CO2-n=48) και η ομάδα Β (NaCl-n=41). Η μέση ηλικία των γυναικών ήταν τα 52,8 χρόνια. Με το τέλος της υστεροσκόπhσης ζητούσαμε από τους ασθενείς να αναφέρουν αν αισθάνθηκαν κάποια ενόχληση και να καταγράψουν την ένταση της ενόχλησης σε μια κλίμακα που σχεδιάστηκε ειδικά για το σκοπό αυτό. Η υστεροσκοπική διάγνωση συγκρίθηκε με το αποτέλεσμα της ιστολογικής εξέτασης για να υπολογιστεί η διαγνωστική ακρίβεια της κάθε μεθόδου της υστεροσκόπισης. Αποτελέσματα: Το ποσοστό ολοκλήρωσης της επέμβασης στην ομάδα Α ήταν 91.67% και στην ομάδα Β 97.5%. Οι περισσότεροι ασθενείς και στις δύο ομάδες αισθάνθηκαν ήπιας έντασης ενόχληση. Η διαγνωστική ακρίβεια της υστεροσκόπισης στην ομάδα Β (χρήση NaCl) ήταν μεγαλύτερη από αυτή που παρατηρήθηκε στην ομάδα Α (χρήση CO2). Η διαφορά αυτή ήταν ιδιαίτερα εμφανής στις περιπτώσεις παρουσίας ελάχιστων ενδομητρικών αλλοιώσεων (αδενομύωση – ενδομητρίτιδα). Συμπεράσματα: Ο φυσιολογικός ορός εμφανίζει καλύτερη διαγνωστική ευκρίνεια σε σχέση με το CO2 στην υστεροσκόπιση και οι ασθενείς εμφανίζουν μεγαλύτερη ανοχή στη χρήση του. Ο φυσιολογικός ορός μπορεί να θεωρείται το καλύτερο προς το παρόν μέσο διάτασης στη διαγνωστική υστεροσκόπιση.
Βαθμονόμηση κινδύνου (Risk Score) εμφάνισης υποτροπής σε ασθενείς με πρώτο επεισόδιο οξείας περικαρδίτιδας
Authors: Λαζάρου Αιμιλία
Published: April 2023

Σκοπός: Η ανάπτυξη μοντέλου βαθμονόμησης κινδύνου για εμφάνιση υποτροπής περικαρδίτιδας σε ασθενείς με πρώτο επεισόδιο οξείας περικαρδίτιδας. Μέθοδοι: Συμπεριελήφθησαν και μελετήθηκαν προοπτικά 262 διαδοχικοί ασθενείς με πρώτο επεισόδιο οξείας περικαρδίτιδας. Στην πρώτη εκτίμηση έγινε συλλογή των δημογραφικών, κλινικών, απεικονιστικών και εργαστηριακών δεδομένων. Ο διάμεσος χρόνος παρακολούθησης ήταν 51 μήνες (ενδοτεταρτημοριακό εύρος - interquartile range 21-71). Καταληκτικό σημείο ήταν η εμφάνιση πρώτης υποτροπής περικαρδίτιδας. Οι παράμετροι με <10% ελλείπουσες τιμές εισήχθησαν σε μοντέλα πολλαπλής λογαριθμιστικής παλινδρόμησης με σταδιακό αποκλεισμό για τη διερεύνηση πιθανών ανεξάρτητων προγνωστικών παραγόντων για υποτροπή. Η απόδοση του τελικού μοντέλου εκτιμήθηκε από το c-index ενώ η βαθμονόμηση του μοντέλου και το διορθωμένο c-index εκτιμήθηκε μετά από διασταυρούμενη επικύρωση 10 τμημάτων (10-fold cross-validation). Αποτελέσματα: Ταυτοποιήθηκαν 6 ανεξάρτητοι προγνωστικοί παράγοντες για υποτροπή περικαρδίτιδας και συγκεκριμένα η ηλικία, το μέγεθος της συλλογής, ο αριθμός των αιμοπεταλίων (αρνητικοί προγνωστικοί παράγοντες) και η μειωμένη αναπνευστική διακύμανση της κάτω κοίλης φλέβας, η ενδονοσοκομειακή χρήση γλυκοκορτικοειδών και η καρδιακή συχνότητα (θετικοί προγνωστικοί παράγοντες). Το τελικό μοντέλο είχε καλή απόδοση για την υποτροπή της περικαρδίτιδας, με c-index 0.783 (95%CI 0.725-0.842), ενώ το διορθωμένο c-index κατόπιν διασταυρούμενης επικύρωσης (cross-validation) ήταν 0.752. Βασιζόμενο σε αυτές τις μεταβλητές αναπτύχθηκε ένα σύστημα πόντων βαθμονόμησης κινδύνου για υποτροπή περικαρδίτιδας (0-22 βαθμοί) με ισάξια καλή απόδοση (c-index 0.740, 95%CI 0.677-0.803). Οι ασθενείς με χαμηλό σκορ (0-7 βαθμοί) είχαν 21.3% κίνδυνο υποτροπής, ενώ αυτοί με υψηλό σκορ (≥12 βαθμοί) εμφάνισαν κίνδυνο 69.8% αντιστοίχως. Η βαθμονόμηση κινδύνου ήταν προγνωστική για υποτροπή περικαρδίτιδας μεταξύ των περισσότερων υποομάδων ασθενών. Συμπεράσματα: Ένα απλό μοντέλο βαθμονόμησης κινδύνου βασισμένο σε 6 μεταβλητές που προσδιορίζονται κατά την εισαγωγή στο νοσοκομείο μπορεί να χρησιμοποιηθεί για να προβλέψει τον εξατομικευμένο κίνδυνο για υποτροπή περικαρδίτιδας μεταξύ των ασθενών με πρώτο επεισόδιο οξείας περικαρδίτιδας.
Η εφαρμογή της συστημικής θεραπείας επικεντρωμένης στη λύση (solution-focused family therapy) σε χρόνιους σχιζοφρενείς
Authors: Αϊβαλιώτη Ελένη
Published: April 2023

Η οικογενειακή θεραπεία θεωρείται αποτελεσματική στη μείωση των υποτροπών της σχιζοφρένειας, περιορίζοντας χαρακτηριστικά της οικογένειας που σχετίζονται με αυξημένο κίνδυνο υποτροπής. Υπό τη συστημική θεώρηση υπάρχουν κυκλικές αιτιώδεις σχέσεις ανάμεσα σε μοτίβα επικοινωνίας, οικογενειακούς κανόνες και όρια καθώς και το σύστημα των πεποιθήσεων κάθε μέλους. Η Σύντομη Εστιασμένη στη Λύση Θεραπεία (BSFT) έχει αναπτυχθεί στα πλαίσια της συστημικής προσέγγισης. Εστιάζει στο μέλλον, ενθαρρύνει τους θεραπευόμενους να “μιλούν για αλλαγή” αντί να “μιλούν για το πρόβλημα” και για στιγμές που έχουν καταφέρει μια επιτυχή λύση. Ο σκοπός της παρούσας μελέτης ήταν να εξεταστεί η αποτελεσματικότητα της BSFT σε ασθενείς με σχιζοφρένεια, εστιάζοντας στην επίδραση αλλαγών σε οικογενειακά χαρακτηριστικά όπως η συνοχή, οι συγκρούσεις, η οργάνωση και ο έλεγχος, στη βαρύτητα της ψυχοπαθολογίας. Μελετήθηκαν 30 ασθενείς, οι οποίοι κατανεμήθηκαν τυχαία στην ομάδα παρέμβασης και στην ομάδα ελέγχου. Η ομάδα παρέμβασης δέχθηκε τη Σύντομη Εστιασμένη στη Λύση Θεραπεία συμμετέχοντας σε 5 συνεδρίες σε διάστημα 3 μηνών, ενώ η ομάδα ελέγχου συνέχισε με τη συνήθη θεραπεία. Τα οικογενειακά χαρακτηριστικά, κατά την άποψη των συμμετεχόντων, αξιολογήθηκαν με τη Family Environment Scale (FES) και η ψυχοπαθολογία με τη Brief Psychiatric Rating Scale (BPRS). Οι δύο ομάδες δε διέφεραν στην ηλικία, το φύλο, τον αριθμό των υποτροπών, τον αριθμό νοσηλειών και το σκορ ψυχοπαθολογίας κατά την έναρξη της μελέτης. Οι ασθενείς της ομάδας παρέμβασης ανέφεραν σημαντική μείωση του επιπέδου συγκρούσεων (p=0.001) και αύξηση της συνοχής και της εκφραστικότητας (p=0.004) καθώς και του προσανατολισμού στη δράση (p=0.001) συγκριτικά με το σημείο έναρξης (αλλά και με την ομάδα ελέγχου κατά τη δεύτερη μέτρηση). Επίσης, στην ομάδα παρέμβασης, καταγράφηκε ης σημαντική μείωση στη βαθμολογία στην κλίμακα BPRS σε σχέση με το σημείο έναρξης, (p<0.001) ενώ στην ομάδα ελέγχου δεν παρατηρήθηκε αξιοσημείωτη μεταβολή. Αυτά τα προκαταρκτικά ευρήματα προτείνουν ότι η Βραχεία Εστιασμένη στη Λύση Θεραπεία μπορεί να συμβάλει στην αλλαγή των ιδιοτήτων του οικογενειακού συστήματος και συγκεκριμένα της συνοχής, των συγκρούσεων, της οργάνωσης και του ελέγχου, ιδιότητες που με τη σειρά τους επιδρούν στη μείωση της ψυχοπαθολογίας του ασθενούς.
The genome sequence of Clancy’s Rustic, Caradrina kadenii (Freyer, 1836)
Authors: Broad Gavin R. ,   Natural History Museum Genome Acquisition Lab,   Darwin Tree of Life Barcoding collective,   Wellcome Sanger Institute Tree of Life programme,   Wellcome Sanger Institute Scientific Operations: DNA Pipelines collective,   Tree of Life Core Informatics collective,   Darwin Tree of Life Consortium
Published: April 2023

We present a genome assembly from an individual male Caradrina kadenii (Clancy’s Rustic; Arthropoda; Insecta; Lepidoptera; Noctuidae). The genome sequence is 426.0 megabases in span. Most of the assembly is scaffolded into 31 chromosomal pseudomolecules, including the Z sex chromosome. The mitochondrial genome has also been assembled and is 15.4 kilobases in length.
Primary diffuse large B-cell lymphoma of the vulva: a case report
Authors: Kim Sun Yeon , Koo Ju Hwan , Lee Juhun , Koo Yu Jin , Gu Mi Jin , Lee Dae Hyung
Published: April 2023

Diffuse large B-cell lymphoma (DLBCL) is a subtype of non-Hodgkin lymphoma (NHL) and is estimated to account for approximately 30% of all NHL cases. NHL can also occur in the female genital tract and accounts for approximately 1.5% of all NHL cases. Many doctors have difficulty diagnosing or treating vulvar DLBCL because of its very low prevalence. A 55-year-old woman presented with a solid mass on the right side of the vulva. No significantly enlarged lymph nodes were observed in the inguinal region. She underwent excisional biopsy at our institution. DLBCL was diagnosed based on histological examination. According to the Hans algorithm, the lesion was diagnosed as a non-germinal center B-cell-like subtype. The patient was referred to a hematologic oncologist. The disease stage was classified as IE according to the Ann Arbor staging classification. The patient received four cycles of chemotherapy with rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone and localized radiation therapy with 36 Gy in 20 fractions. She showed complete remission and maintained this status on the latest computed tomography scan. Gynecologists should rule out lymphoma in patients presenting with a vulvar mass.
Tânia Gastão Saliés and Augusto Soares da Silva interview Dr. Andreas Musolff
Authors: Musolff Andreas , Saliés Tânia Gastão , Silva Augusto Soares da
Published: April 2023

Professor Andreas Musolff is a distinguished Research Professor of Intercultural Communication at the University of East Anglia, UK. He is considered one of the first scholars to research language and communication within a cognitive linguistics, sociocultural/ discursive framework. In this effort, Musolff has promoted the synergy between Critical Discourse Analysis and Conceptual Metaphor Theory, advocating for the cultural roots of metaphors and for social cognition. He has previously taught at the Universities of Dűsseldorf and London and was a Visiting Fellow at the Truman Institute, Hebrew University in Jerusalem and at the Queen Mary University of London. Musolff is a man of far-ranging intellectual interests who has demonstrated a remarkable talent for applying the concepts of Cognitive Linguistics to other fields of knowledge, including: Political Science, Intercultural Communication, Philosophy, Historical Semantics, Psycholinguistics, Sociolinguistics, Linguistics Anthropology, Pragmatics and Applied Linguistics. His most recent research explores competition metaphors in the context of COVID-19 (2022), metaphor use in political discourse cross-culturally (2021), language and racism (2019), and proverbs (2020) in everyday communication. Professor Musolff has been as kind as to accept our invitation for this interview. His words will surely inspire our critical reflection and research agenda.
Espaço discursivo e proximização no discurso neoconservador brasileiro: articulando a linguística cognitiva aos estudos críticos do discurso
Authors: Gonçalves-Segundo Paulo Roberto
Published: April 2023

O objetivo deste artigo é discutir como o estudo do posicionamento, da distância e da movimentação espacial, temporal, epistêmica e axiológica no espaço discursivo pode ser produtivo para a análise cognitivo-discursiva do processo de legitimação e de mobilização de ações sociais. Para isso, discutimos inicialmente as bases teóricas da abordagem linguístico-cognitiva dos estudos críticos do discurso (GONÇALVES-SEGUNDO, 2014, 2017; HART, 2014), o conceito de espaço discursivo (CHILTON, 2004) e seus desdobramentos na Teoria da Proximização (CAP, 2013; HART, 2014). Posteriormente, aplicamos as ferramentas desse construto teórico-metodológico para analisarmos três instâncias do discurso neoconservador brasileiro contemporâneo, com especial destaque a uma forma particular de construção de anticomunismo: a representação do avanço da agenda, das ideias e das políticas de esquerda como uma forma de legitimação de um discurso de intervenção que envolve a mobilização das forças armadas pelo clamor popular. Depreendemos que tal esforço de legitimação envolvia, em primeiro plano, proximização temporal e axiológica e, em segundo plano, proximização espacial e epistêmica.
COVID-19 Salgınında Okul Öncesi Öğretmenlerinin Uzaktan Eğitim Sürecinde Ele Aldıkları Matematik Kavramları ve Kazanımları
Authors: AKMAN Berrin , YILDIZ Ensar
Published: April 2023

Bu çalışmanın amacı, okul öncesi öğretmenlerinin görüşleri doğrultusunda COVID-19 salgını sürecinde uzaktan eğitimde günlük eğitim akışı ve aylık planlarında ele aldıkları matematik kazanımlarına ve kavramlarına yer verme durumlarının incelenmesidir. Çalışma, nitel araştırma yöntemlerinden durum çalışması türlerinden açıklayıcı durum çalışması olarak tasarlanmıştır. Katılımcıları, ölçüt örnekleme ve kartopu örnekleme yöntemleriyle seçilen 50 okul öncesi öğretmeni oluşturmaktadır. Veri toplama aracı olarak kişisel bilgi formu ve anket kullanılmıştır. Verilerin analizinde nitel veri analizi yöntemlerinden betimsel analiz ve içerik analizi yapılmıştır. Araştırma sonucunda; öğretmenlerin uzaktan eğitim sürecinde, daha kolay işleyebilecekleri ve uzaktan eğitime başlamadan önce yüz yüze eğitim sürecinde işlemiş oldukları kavram ve kazanımları tercih ettikleri görülmüştür. Öğretmenlerin büyük bir kısmı uzaktan eğitim ile ele alınmasının zor olduğu gerekçesiyle günlük eğitim akışlarında çocuk ‘Zaman ile ilgili kavramları açıklar.’; çocuk ‘Nesne grafiği hazırlar.’ kazanımlarına yer vermemiştir. Okul öncesi öğretmenlerine salgın gibi olağan dışı durumlarda uzaktan eğitim gibi alternatif öğretim yöntem ve teknikleri konularında hizmet içi eğitimler verilebilir.
Effects of Mine Water Irrigation on Soil Salinity and Winter Wheat Growth
Authors: Huang Zhixi , Ma baoguo , Wang jian , Liu liang , Zhao ying , Xi zengfu , Qi shuanwang , Song shihao , guan ronghao
Published: April 2023

Highlights

Mine water irrigation can promote the plant height growth of winter wheat, but inhibit the growth of leaf area.

High salinity mine water irrigation will inhibit the growth and development of winter wheat and reduce the yield.

Mixed irrigation of mine water and clean water (the ratio is 1:1) is beneficial to the growth of winter wheat.

Short-term mine water irrigation will not cause soil salinization.

Abstract. There is a serious shortage of irrigation water in the overlapped areas of crop and mineral production in North China. The key to solve the problem is to utilize mine water safely and efficiently. The effects of mine water irrigation (MI), mixed mine water and clean water irrigation (MIMC), rotational mine water and clean water irrigation, irrigated with mine water first, then clean water (RIMC) and clean water irrigation (CK) on winter wheat growth and soil salinity were studied through two years of field trials (2012 to 2014). The results showed that different models of mine water irrigation had no difference in plant height, but had obvious inhibitory effect on leaf area of wheat. Compared with CK, MI increased plant height by 1.0% to 3.4%, and leaf area was 69.5% to 81.9% of that of CK. Compared with CK, the yield of MIMC was increased by 2.6% to 6.67%, and the yield of RIMC and MI was decreased by 3.4% to 21.1% and 10.4% to 11.2%, respectively. The MI with high salinity could inhibit the growth and development of winter wheat, and reduce the yield and quality, while the yield of MIMC was higher than that of CK, and could improve the quality of winter wheat. Long-term irrigation of using mine water with high salinity will increase the risk of soil salinization, but MIMC can improve soil fertility. Keywords: Growth, Irrigation, Mine water, Soil salinity, Winter wheat.
Dielectric Constant-Based Grain Mass Estimation Using Radio Frequencies Sensing Technology
Authors: Zhang Yu , Striker Ryan , Disu Moruf , Monono Ewumbua , Peckrul Allen , Advani Gurmukh , Chen Bingcan , Braaten Benjamin , Sun Xin
Published: April 2023

Highlights

Radio frequency sensing technology was used to estimate clean grain mass based on grain moisture content and grain properties.

Multiple variable regression analysis was used to develop grain mass estimation model.

A grain mass estimation model with high R2 was developed by introducing dielectric properties and phase angle.

Parameter of dielectric constant e' indicated the domination of moisture content in grain mass estimation model.

Abstract. Grain mass estimation is critical in many precision agriculture applications, especially in yield monitoring during harvest procedures. A new clean grain mass estimation method using Radio Frequency (RF) sensing technology is discussed in this paper. RF sensing technology is sensitive to moisture content and grain properties. In this study, a vector network analyzer (VNA) and a pair of horn antennas were used to collect phase shift and attenuation data from 1 to 18 GHz of grain samples (soybean, canola, and corn) on a static testbed in an anechoic chamber. Using multiple variable linear regression analysis, a comprehensive clean grain mass estimation model was developed based on the dielectric properties of the grain samples derived from the S-Parameters at 13 GHz. Dielectric (e') constant/properties and phase shift were introduced into the regression models and generated a grain mass estimation result with R2 values of 0.976, 0.977, and 0.989 for soybean, canola, and corn samples, respectively. The results indicate that RF sensing technology can reveal how grain attributes interact with electromagnetic fields at a certain frequency and has the potential to provide more accurate sensing methods for estimating grain mass in multiple precision agricultural applications. Keywords: Keywords., Dielectric properties, Grain mass estimation, Microwave frequency, Phase shifts, Radio frequency sensing.
Research on Automatic Driving Control of Tracked Transport Vehicle Based on Labview
Authors: Yu Yao , Li Yunwu , Chen Yuyi , Zhao Ying
Published: April 2023

Highlights

An indirect Kalman filter algorithm is proposed to fuse GNSS/INS positioning information.

Detailed kinematics and dynamics model of track vehicles was established.

An MPC-based double-layer closed-loop controller combined with tracked vehicle model is designed.

Tracked transport vehicle performs well in path tracking on soft soil road.

Abstract. Orchards in hills and mountainous regions are more occluded and single satellite navigation is unstable. Therefore, the indirect Kalman filter information fusion algorithm was proposed to achieve high-precision positioning by establishing a state error equation based on GNSS/INS. A complete kinematics and dynamics model of tracked chassis was established. A double-layer closed-loop controller based on model predictive control (MPC) was designed. An MPC controller based on the kinematics model in the outer loop was designed to output the expected control value of the tracked transporter. The inner loop design was based on the extended state observer of the dynamic model to estimate and compensate for the internal and external disturbances of the system. The performance test was based on a tracked chassis platform. The test results presented that when driving at a speed of 0.50 m/s under soft soil road conditions, the maximum lateral deviation was 0.15 m, and the average absolute deviation was 0.05 m. This high level of control accuracy means that this control design enables the transfer vehicle to follow the navigation path precisely and complete its task. Keywords: Hills and mountainous regions, Integrated navigation, Model predictive control, Vehicle dynamics model.
Computer Vision Approach for Tile Drain Outflow Rate Estimation
Authors: Young Sierra N , Han Meng , Peschel Joshua M
Published: April 2023

Highlights

Vision-based approach for detecting outlet flow of tile drains in a laboratory environment.

Method accurately detects and estimates flow within 12% or less of ground truth flow rate.

A real-time application was developed that provides estimated flow rates from collected video.

Abstract. This article presents a computer vision-based approach for monitoring water flow at outlet points of a tile drain system. The approach relies only on video capture of events at outlet points, thus a camera can be installed remotely and without contact with water. The algorithm detects, identifies, and tracks flows by motion, shape, and color features and measures flow rate based on a proposed model and two provided dimensions. The software was tested in a laboratory environment with three different target flow rate conditions: 0.312, 0.946, and 1.58 L/s (5, 15, and 25 gal/min). Flow rates reported by the computer vision approach are within 12% of the ground-truth flow rate baseline. The results of this work show that computer vision can be used as a reliable method for monitoring outlet flows from free-standing outlet structures under laboratory conditions. This work opens the possibility of applying computer vision techniques in tile drain monitoring from outlet points with mobile video recording devices in the field. Keywords: Keywords., Morphological transformations, Outflow detection, Outlet flow, Real-time application.
Altering Physical Properties of Wilted Alfalfa by Impact – Shredding Processing
Authors: Pintens David A. , Shinners Kevin J. , Friede Joshua C. , Digman Matthew F. , Kalscheur Kenneth F.
Published: April 2023

Highlights

A screenless hammermill utilizing impact and shredding was used to process wilted alfalfa.

Processing increased specific surface area and ruptured plant cells as quantified by a processing level index.

Processed material was more compliant than the chopped material resulting in 26% to 56% greater compacted density.

Processing reduced silage pH and increased fermentation acids compared to the chopped silage.

Abstract. Intensive mechanical processing of wilted alfalfa could potentially increase ruminant utilization of alfalfa. A novel forage processing mechanism which combines impact and shredding was used to investigate intensive physical disruption of wilted alfalfa. Physical disruption was quantified by a processing level index (PLI) defined as the ratio of treatment leachate conductivity relative to that of an ultimately processed treatment. Utilizing this index, four processing levels defined by the number of passes through the processor were compared to a control treatment of conventionally chopped material. Processing three times through the processing device achieved a PLI of greater than 60%, with the greatest increase in PLI occurring in the first pass through the device. Processing reduced particle-size, but 45% to 56% of the material dry mass was greater than 6 mm at the greatest processing level. Processing severely disrupted the mechanical structure of the stems, making them more compliant resulting in 26% to 56% greater compacted density than the chopped control. Processing reduced silage pH and increased fermentation acids compared to the chopped silage, indicating processing improved silage quality. Keywords: Alfalfa, Density, Haylage, Impact, Particle-size, Shredding.
Effect of Aspergillus Flavus Fungi Infection and Aflatoxin Contamination on Single Corn Kernel Mechanical Strength
Authors: Yao Haibo , Hruska Zuzana , Kincaid Russell , Tao Feifei , Rajasekaran Kanniah
Published: April 2023

Highlights

Kernels were artificially inoculated with toxigenic and non-toxigenic strains of Aspergillus flavus in the lab.

Corn kernel mechanical strength was assessed as single kernel compression rupture force (CRF).

Fungus-infected kernels had lower mechanical strength than the controls.

Kernels with high aflatoxin contamination had lower mechanical strength than others.

ABSTRACT. One persistent food safety issue associated with corn is aflatoxin contamination. Aflatoxins are secondary metabolites produced mainly by the fungi Aspergillus flavus (A. flavus) and A. parasiticus. Under environmental conditions suitable for fungal growth and aflatoxin production, these fungi are capable of infecting corn kernels in the field and in storage. When corn kernels are infected, the fungi use nutrients from the kernels to grow and propagate. In general, moldy and contaminated kernels are discolored and lighter in weight. These features could aid in the identification and removal of infected kernels. The objective of this research was to investigate the relationship between the mechanical strength of corn kernels and fungal infection, as well as aflatoxin contamination as a consequence of fungal infection. Corn kernels were infected with aflatoxin producing (AF13) and non-toxin-producing (AF36) A. flavus strains in lab inoculations. A total of 900 kernels were assigned to three groups, non-inoculated control, AF13-inoculated, and AF36-inoculated. One hundred kernels from each group were incubated for 3, 5, and 8 days. After incubation each kernel was cleaned and dried, then subjected to a destructive mechanical test. The compression rupture force (CRF) of each kernel was measured using a Mark-10 material test gauge to assess its kernel strength. The results show that kernel strength was significantly different between the control and treatment groups, with the control kernels being the strongest and the AF36-inoculated kernels the weakest. The results also indicated that kernels with aflatoxin contamination of 300 ppb and above were significantly weaker than control kernels and those less contaminated in the AF13-inoculated group. It is expected that the results of this research could benefit the corn industry by mitigating the aflatoxin contamination problem in post-harvest management. Keywords: Aflatoxin, Aspergillus flavus, Compression rupture force, Corn, Fungus-infected, Inoculation, Mechanical strength.
Assessment of PWM Solenoid Valves to Manipulate Hollow-Cone Nozzles with Different Modulation Frequencies
Authors: Campos Javier , Zhu Heping , Jeon Hongyoung , Salcedo Ramón , Ozkan Erdal , Gil Emilio
Published: April 2023

Highlights

Twelve industrial PWM valves were investigated to manipulate high-pressure agricultural hollow-cone nozzles.

Modulation frequencies ranged between 5 and 50 Hz and duty cycles between 10% and 100%.

Upstream and downstream pressure profiles were used to determine maximum duty cycle ranges.

Two out of 12 PWM valves could be potentially used for future variable-rate orchard sprayer designs.

Abstract. Integration of high-speed pulse-width-modulation (PWM) solenoid valves into variable-rate orchard sprayers is needed to accurately regulate spray outputs for matching changes in plant canopy structure characteristics. Capability of 12 PWM valves to modulate hollow-cone nozzles for variable-rate applications was investigated with PWM frequencies of 5 to 50 Hz and duty cycles of 10% to 100%. The PWM valves were assembled on a laboratory spray system with a hollow-cone disc-core nozzle of 2.84 L min-1 flow capacity operated at 1380 kPa pressure. The upstream and downstream pressures on the PWM valves were recorded and analyzed to determine the maximum functional duty cycle ranges and maximum PWM frequency at which the PWM valves could manipulate the nozzle functionally. Test results showed that there were noticeable differences in the modulation capability among the 12 PWM valves due to their design differences. Two out of 12 valves were able to manipulate the hollow-cone nozzles with duty cycles ranging from 30% or 40% to 70% at the modulation frequency of 40 Hz. These two PWM valves performed the highest capability among the 12 valves to manipulate the hollow-cone nozzle. As a result, these two valves would be selected for future investigations on their flow rate modulation accuracy and droplet size distributions before they could be recommended for adaptation in the variable-rate orchard sprayers. Keywords: Duty cycle, Flow control, Orchard sprayer, Pesticide, Precision farming, Pulse width modulation.
«Yo catalán, ¡pero no ejerzo!» Un diplomàtic al servei del franquisme: Tomàs Suñer Ferrer
Authors: Clara Josep
Published: April 2023

Aquest article ressegueix l’actuació d’un diplomàtic català en el nord d’Àfrica durant la Guerra Civil i el seu pas per distintes ambaixades de Llatinoamèrica i els ministeris d’Afers Exteriors i Indústria i Comerç.
Intervenció arqueològica a un refugi de comandament de les Brigades Internacionals durant la Batalla de l’Ebre. Resultats de les excavacions realitzades al Molí de Ferriol (Corbera d’Ebre)
Authors: Romero Serra Mireia
Published: April 2023

Durant l’agost i principis de setembre de 1938, les forces republicanes van haver de recular davant la forta ofensiva dels nacionals en els diferents escenaris de combat. La pugna al nucli urbà de Corbera d’Ebre i les seves rodalies esdevingué molt dura i provocà combats acarnissats. Algunes de les brigades internacionals, com les XIII i XV, van jugar un paper molt important en la defensa de Corbera d’Ebre, fins a retirar- se cap al nucli estratègic de les Camposines. Fonts orals i arqueològiques evidencien la construcció en aquesta zona de diversos llocs de comandament des d’on es coordinaven els moviments de la defensa republicana. Un d’aquests punts es localitza a la cova d’en Molí d’en Ferriol, excavada pel grup de recerca DIDPATRI en una campanya arqueològica durant el setembre de 2016. En aquest article  s’exposen els resultats arqueològics obtinguts de la intervenció arqueològica.
Crèdits
Authors: 38 Ebre
Published: April 2023

Crèdits
El callejero de Alicante durante la guerra civil española: 1936-1939
Authors: Henales Salamanca Jordi
Published: April 2023

El nomenclátor urbano no fue ajeno a las acontecimentos de la Guerra Civil española, es más, el propio conflicto dictará en cierto modo las pautas de la rotulación de nuevas calles pues las víctimas y mártires para el gobierno legítimo se convertirán en modelos a seguir y cómo no tendrán su acogida en la ciudad con la rotulación de calles dedicadas a estos personajes ligados al ámbito de la política y quienes marcaron los pasos a seguir en el Frente Popular y durante la guerra.
Imagen y recreación. Nuevas museografías
Authors: Sospedra Roca Rafael
Published: April 2023

La iconografía histórica suministra, a partir de imaginarios y tecnologías, visiones más o menos tangibles e hipotéticas sobre el pasado. A su vez, la necesidad de generatrices históricas para construir identidades personales y colectivas han provocado una demanda ascendente de productos historiográficos y en este contexto se han fortalecido praxis emergentes como la recreación histórica y la museografía didáctica. En este contexto se define un triángulo virtuoso entre la recreación como fuente de generación de imágenes del pasado, la nueva iconografía digital que posibilita reconstrucciones 3D y que reordena las imágenes generadas por la recreación y una nueva museografía tangible que basa sus opciones estratégicas de socialización en la iconografía.
Efficient Fourier single-pixel imaging based on weighted sorting
Authors: Xiang Qianjin , Tang Yan , Cheng Xiaolong , Han Chenhaolei , Long Yuliang , Zhao Lixin , Yang Yong , Feng Jinhua
Published: April 2023

Fourier single-pixel imaging (FSI) has attracted increased attention in recent years with the advantages of a wide spectrum range and low cost. FSI reconstructs a scene by directly measuring the Fourier coefficients with a single-pixel detector. However, the existing sampling method is difficult to balance the noise suppression and image details within a limited number of measurements. Here we propose a new sampling strategy for FSI to solve this problem. Both the generality of the spectral distribution of natural images in the Fourier domain and the uniqueness of the spectral distribution of the target images in the Fourier domain are considered in the proposed method. These two distributions are summed with certain weights to determine the importance of the Fourier coefficients. Then these coefficients are sampled in order of decreasing importance. Both the simulations and experiments demonstrate that the proposed method can capture more key Fourier coefficients and retain more details with lower noise. The proposed method provides an efficient way for Fourier coefficient acquisition.
An Open EDFA Gain Spectrum Dataset and Its Applications in Data-driven EDFA Gain Modeling
Authors: Wang Zehao , Kilper Daniel , Chen Tingjun
Published: April 2023

Optical networks satisfy high bandwidth and low latency requirements for telecommunication networks and data center interconnection. To improve the network resource utilization, machine learning (ML) is used to accurately model optical amplifiers such as erbium-doped fiber amplifiers (EDFAs) which impact end-to-end system performance such as quality of transmission (QoT). However, a comprehensive measurement dataset is required for ML to accurately predict an EDFA’s wavelength-dependent gain. We present an open dataset consisting of 202,752 gain spectrum measurements collected from 16 commercial-grade ROADM booster and pre-amplifier EDFAs under varying gain settings and diverse channel loading configurations over 2,785 hours in total, with a total dataset size of 3.1 GB. With this EDFA dataset, we implemented component-level deep neural network (DNN) based EDFA models and use transfer learning (TL) to transfer the EDFA model among 16 ROADM EDFAs, which achieve less than 0.18/0.24 dB mean absolute error for booster/pre-amplifier gain prediction using only 0.5% of the full target training set. We also showed that TL reduces the EDFA data collection requirements on a new gain setting or a different type of EDFA on the same ROADM.
A profile of patients’ and doctors’ perceptions, acceptance, and utilization of e-health in a deprived region in southwestern China
Authors: Xiong Xuechen , Luo Li , Zhou Shuai , Li Victor Jing , Zhou Yinan , Huo Zhaohua
Published: April 2023

Background

E-health has the potential to promote health accessibility, performance and cost-saving. However, the adoption and penetration of e-health in underprivileged areas remains insufficient. We aim to investigate patients’ and doctors’ perception, acceptance, and utilization of e-health in a rural, spatially isolated and poverty-stricken county in southwestern China.

Methods

A retrospective analysis based on a cross-sectional survey of patients and doctors in 2016 was conducted. Participants were recruited through convenience and purposive sampling, and questionnaires were self-designed and validated by investigators. The utilization, intention to use and preference of four e-health services were evaluated, including e-appointment, e-consultation, online drug purchase, and telemedicine. Predictors of utilization and intention to use e-health services were investigated by multivariable logistic regression.

Results

A total of 485 patients were included. The utilization rate of any type of e-health services was 29.9%, ranging from 6% in telemedicine to 18% in e-consultation. Additionally, 13.9%-30.3% of respondents as non-users revealed their willingness to use such services. Users and potential users of e-health services were inclined to specialized care from county, city or province hospitals, and they were most concerned with the quality, ease of use and price of e-health service. Patients’ utilization and intention to use e-health could be associated with education and income level, cohabitants, working location, previous medical utilization, and access to digital device and internet. There remained 53.9%-78.3% of respondents reluctant to use e-health services, mainly due to perceived inability to use them. Of 212 doctors, 58% and 28% had provided online consultation and telemedicine before, and over 80% of county-hospital doctors (including actual providers) indicated their willingness to provide such services. Reliability, quality and ease of use were doctors’ major concerns regarding e-health. Doctors’ actual provision of e-health was predicted by their professional title, number of years in work, satisfaction with the wage incentive system, and self-rated health. Nevertheless, their willingness to adopt was only associated with the possession of smartphone.

Conclusions

E-health is still in its infancy in western and rural China, where health resources are most scarce, and where e-health could prove most beneficial. Our study reveals the wide gaps between patients’ low usage and their certain willingness to use e-health, as well as gaps between patients’ moderate attention to use and physician’s high preparedness to adopt e-health. Patients’ and doctors’ perceptions, needs, expectations, and concerns should be recognized and considered to promote the development of e-health in these underprivileged regions.