bluuebunny/crossref_metadata_2025 huggingface dataset:
The myopic focus on decoloniality in applied linguistics and English language education: citations and stolen subjectivities
Authors: Selvi Ali Fuad
Published: February 2024

The recent surge in acknowledging and critically engaging with identity, advocacy, social justice, criticality, anti-racism, and decolonization in applied linguistics has initiated a process aimed at destabilizing, disrupting, and eventually transforming the geopolitics of knowledge, epistemological orientations, ideological commitments, and methodological practices in research. The current study investigates the evolutionary trajectory of decoloniality in applied linguistics, specifically focusing on citation practices as a point of entry in knowledge building, theorization, and dissemination in major journals over the past 5 years. The findings uncover the consistent invisibility of scholars from the Global South as authors (who use their voices [in]form the knowledge building and dissemination), cited authors (whose voices are used to [in]form the knowledge building and dissemination), and editors/editorial board members (whose vision and practices that ultimately [in]form disciplinary norms, expectations, and directions about knowledge building and dissemination). These (in)advertent (self-) exclusionary trends relegate Southern voices, subjectivities, and epistemological perspectives, perpetuating the dominance of the Anglosphere and obscuring ongoing epistemic appropriation. It concludes that resisting epistemic injustices (erasure, silence, and theft) must be regarded as an ethical, ideological, and professional imperative and demand the deployment of rhetorical strategies, equitable citation practices, collaborative initiatives, and a sustained commitment to decolonial skepticism.
MALDI-MS in first-line screening of newborns for sickle cell disease: results from a prospective study in comparison to HPLC
Authors: El Osta Marven , Benoist Jean-François , Naubourg Pierre , Bonacorsi Stéphane , Messine Reine , Ducoroy Patrick , Allaf Bichr
Published: February 2024

Objectives

Newborn screening (NBS) for sickle cell disease (SCD) requires a robust, high-throughput method to detect hemoglobin S (HbS). Screening for SCD is performed by qualitative methods, such as isoelectric focusing (IEF), and both qualitative and quantitative methods such as high performance liquid chromatography (HPLC), capillary electrophoresis (CE), and tandem mass spectrometry (MS/MS). All these methods detect HbS, as well as low-level or absent HbA, and also other variants of hemoglobin. HPLC is considered as a reference method for NBS, because of its high sensitivity and specificity in detecting HbS. NeoSickle®, a fully automated matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) platform, combined with automated sample processing, a laboratory information management system and NeoSickle® software for automatic data interpretation, has increased the throughput of SCD testing. The purpose of this study was to compare the performances of NeoSickle® and HPLC.

Methods

A prospective study was conducted including 9,571 samples from the NBS program to compare MALDI-MS using NeoSickle® with an HPLC method. Correlation between the two methods was studied. For the MALDI-MS method, sensitivity, specificity, NPV, and PPV were calculated.

Results

We found over 99.4 % correlation between the HPLC and MALDI-MS results. NeoSickle® showed 100 % of sensitivity and specificity in detecting SCD syndrome, leading to positive and negative predictive values of 100 %.

Conclusions

NeoSickle® is adapted to NBS for SCD, and can be used in first-line high-throughput screening to detect HbS, and beta-thalassemia major warning. When HbS is detected, second-line use of another specific method as HPLC is necessary.
Molecular-level investigation of the adsorption mechanisms of thiazolidinediones on Cu2O(111) surface: a first-principles DFT study
Authors: Lgaz Hassane , Lee Han-Seung
Published: February 2024

We have employed first principles DFT calculation with van der Waals (vdW) corrections to investigate the adsorption mechanism of thiazolidine-2,4-dione (TZD) substituted by 4-methylbenzylidene (MTZD) at 5-position and by an additional allyl group (ATZD) at 3-position on copper oxide surface (Cu2O(111)). Parallel configurations were found the most energetically stable geometries. The adsorption binding energy magnitudes predicted that ATZD outperformed MTZD by −0.11 eV. Our calculations indicated that O and S atoms of thiazolidine-2,4-dione nucleus significantly enhanced the chemical bonding of ATZD and MTZD with Cu2O(111) surface. Hydrogen bond interactions between Lewis base site at unsaturated O atom above the copper surface and TZD molecules are contributing to the stability of TZD molecules on Cu2O(111) surface. The adsorption induced-work function of different TZD adsorption configurations decreased from 4.563 eV (Cu2O(111)) to 4.114–4.373 eV due to electron transport between TZD molecules and Cu2O(111). The analysis of electronic properties of TZDs adsorption geometries revealed strong charge transfer and redistribution at the interface of TZDs-Cu2O(111), strengthening the stability of molecules on copper oxide surface. These theoretical insights would pave the way for further in-depth investigations into TZD-Copper interactions and provide valuable information for an optimized design of copper corrosion inhibitors.
On the generalized Mellin integral operators
Authors: Topuz Cem , Ozsarac Firat , Aral Ali
Published: February 2024

In this study, we give a modification of Mellin convolution-type operators. In this way, we obtain the rate of convergence with the modulus of the continuity of the

m

m

th-order Mellin derivative of function

f

f

, but without the derivative of the operator. Then, we express the Taylor formula including Mellin derivatives with integral remainder. Later, a Voronovskaya-type theorem is proved. In the last part, we state order of approximation of the modified operators, and the obtained results are restated for the Mellin-Gauss-Weierstrass operator.
On exact rate of convergence of row sequences of multipoint Hermite-Padé approximants
Authors: Bosuwan Nattapong
Published: February 2024

In this article, we analyze a rate of attraction of poles of an approximated function to poles of incomplete multipoint Padé approximants and use it to derive a sharp bound on the geometric rate of convergence of multipoint Hermite-Padé approximants to a vector of approximated functions in the Montessus de Ballore theorem when a table of interpolation points is Newtonian.
Zinc oxide-manganese oxide/carboxymethyl cellulose-folic acid-sesamol hybrid nanomaterials: A molecularly targeted strategy for advanced triple-negative breast cancer therapy
Authors: Zhao Chunming , Pan Xueqiang , Li Xiao , Li Meixia , Jiang Rui , Li Yuyang
Published: February 2024

Multifunctional nanocomposites (NC) can greatly enhance therapy outcomes by reducing tumor proliferative potential. We created a novel class of Zn_Mn_CMC_FA_sesamol NC in the current work to combat breast cancer (MDA-MB-231) cells. To understand how zinc (Zn), manganese (Mn), carboxymethylcellulose, and folic acid (FA) interact with sesamol, UV-Visible spectrophotometer and Fourier Transform Infrared spectroscopy were used to analyze the absorption behavior of the synthesized NC. The particle size of NC was confirmed by X-ray diffraction and dynamic light scattering. Scanning electron microscopy was used to assess the morphological features of these NCs. photoluminescence spectrum was used to analyze the optical and electron transition molecules of the sample. In addition to MTT analysis, acridine orange/ethidium bromide (AO/EtBr) analysis of reactive oxygen species (ROS) and nuclear staining with 4′,6-diamidino-2-phenylindole as well as flow cytometry were used to confirm the apoptotic activity of Zn_Mn_CMC_FA_sesamol NC on MDA-MB-231 cells. The results showed significant cytotoxicity, apoptosis induction on AO/EtBr, and increased ROS production in treated cells compared to control cells. The cell cycle analysis revealed that NCs triggered apoptosis and arrested the cell cycle in G0/G1 phases. As a conclusion, the created NC serves as a versatile platform for the successful molecularly targeted chemotherapeutic treatment of cancer.
Inter- and intra-growth ring variations of wood carbon fractions in Pinus tabuliformis
Authors: Wei Yupei , Zheng Chang , Ma Lingyu , Jiang Xiaomei , Yin Yafang , Guo Juan
Published: February 2024

Carbon fraction (CF) of trees is essential for quantifying forest carbon (C) stocks. Considerable attention has been paid to CF variations at various levels with the exception of inter- and intra-growth rings. Herein, the inter- and intra-growth ring variation of CF in Pinus tabuliformis was investigated. Elemental analysis was performed to obtain CF values of the earlywood and latewood in each growth ring of the xylem. Patterns of CF variation at the growth ring level were evaluated using mixed-effect models. The results showed that latewood CF, 50.6 %, was significantly higher than earlywood CF, 49.9 % (p < 0.01). In particular, inter-growth ring variations of CF differed between heartwood and sapwood, as well as between juvenile wood and mature wood. CF values decreased nonlinearly with cambium age toward the heartwood or juvenile wood, with estimated least-squares means of 50.4 % and 51.8 %, respectively. While CF values were almost unaltered in sapwood, and slightly decreased in mature wood, with estimated least-squares means of 50.0 % and 50.2 %, respectively. It indicates that patterns of CF variation between juvenile wood and mature wood are important to estimate the C stock of P. tabuliformis. This research provides insights into C uptake dynamics to support forest management and wood utilization.
In-depth analysis of Gαs protein activity by probing different fluorescently labeled guanine nucleotides
Authors: Pepanian Anna , Sommerfeld Paul , Binbay Furkan Ayberk , Fischer Dietmar , Pietsch Markus , Imhof Diana
Published: February 2024

G proteins are interacting partners of G protein-coupled receptors (GPCRs) in eukaryotic cells. Upon G protein activation, the ability of the Gα subunit to exchange GDP for GTP determines the intracellular signal transduction. Although various studies have successfully shown that both Gαs and Gαi have an opposite effect on the intracellular cAMP production, with the latter being commonly described as “more active”, the functional analysis of Gαs is a comparably more complicated matter. Additionally, the thorough investigation of the ubiquitously expressed variants of Gαs, Gαs(short) and Gαs(long), is still pending. Since the previous experimental evaluation of the activity and function of the Gαs isoforms is not consistent, the focus was laid on structural investigations to understand the GTPase activity. Herein, we examined recombinant human Gαs by applying an established methodological setup developed for Gαi characterization. The ability for GTP binding was evaluated with fluorescence and fluorescence anisotropy assays, whereas the intrinsic hydrolytic activity of the isoforms was determined by a GTPase assay. Among different nucleotide probes, BODIPY FL GTPγS exhibited the highest binding affinity towards the Gαs subunit. This work provides a deeper understanding of the Gαs subunit and provides novel information concerning the differences between the two protein variants.
Knowledge and beliefs of Greek parents towards HPV infection and vaccination – are they willing to vaccinate their sons?
Authors: Toska Aikaterini , Latsou Dimitra , Paraskeuopoulou Chrysoula , Fradelos Evangelos , Albani Eleni , Millionis Charalambos , Geitona Mary , Papagiannis Dimitrios , Saridi Maria
Published: February 2024

Objectives

Human papillomavirus (HPV) stands as one of the prevalent sexually transmitted infections (STIs) and serves as the primary factor behind nearly all instances of cervical cancer, along with various other non-cancerous conditions like genital warts. Our objective was to explore the knowledge and beliefs of Greek parents regarding HPV infection and the vaccination of boys against HPV.

Methods

A cross-sectional study took place at a university hospital located in the Peloponnese region of Greece, from January to June 2021. The study employed convenience sampling as its methodology, and data gathering involved the distribution of self-administered questionnaires to parents who had at least one son between the ages of 9 and 18 years.

Results

The final sample consisted of 120 individuals. 65.8 % of parents have been informed about HPV vaccination, knew that the HPV vaccine provides immunity against genital warts (50 %), and that minimum of two doses is necessary (46.7 %). 30.8 % intended to vaccinate their boys against HPV if the vaccine were available for males. The most important reasons for vaccination were the perception that both genders share equal responsibility in the prevention of sexually transmitted infections (91.7 %) and the protection against cancer (87.6 %), whereas the fear of adverse reactions and the adequate knowledge about HPV-related diseases were most reported as reasons of the intentions to not vaccinate their sons with 31.7 % and 25.8 % respectively.

Conclusions

Although parents participating in the study know about HPV, however, there are significant lack of knowledge regarding HPV infection and the vaccine effects, which can significantly affect the acceptance of vaccination for boys.
Power coordination control method for AC/DC hybrid microgrid considering demand response
Authors: Li Hongyu , Guo Xingyuan , Li Junwei
Published: February 2024

AC–DC hybrid microgrid consists of a variety of energy resources, different types of loads and storage devices, and involves the interconnection between AC and DC power grids. This leads to increased complexity in system design and coordination control, which needs to take into account the interactions and coordination between individual components. Considering the demand response, the power coordination control method of AC/DC hybrid microgrid is studied, which can effectively adjust the power of microgrid in different operation modes and ensure its smooth operation. Combined with the topology of AC/DC hybrid microgrid and its bidirectional converter, the constraints such as AC-side load demand response and AC/DC-side power balance are set on the premise of considering demand response. Under such constraints, the microgrid is divided into two modes: sub-network independent operation and inter-network power exchange. Corresponding control sections are designed for the two modes. On the premise of the set constraints, the microgrid power in each mode is coordinated by coordinating the control methods of the converters. The results show that this method can respond to several mode switches of AC/DC hybrid microgrid in time and effectively coordinate and control the power during the switching process under the constraint conditions such as load demand response. In addition, in the single mode of inter-network power exchange, this method can also quickly respond to the load demand, effectively adjust the exchange power between AC and DC subnets of microgrid, realize the reasonable distribution of power, and make the hybrid microgrid run stably in different modes. During the 8 s to 10 s phase of the experiment, the load power of the DC subnetwork of the experimental microgrid did not change, while the load power of the AC subnetwork increased to 36 kW, the reference power and converter power remained unchanged, and the microgrid voltage remained stable.
An idiodynamic study of the interconnectedness between cognitive and affective components underlying L2 willingness to communicate
Authors: Wang Yupei , Xu Quan
Published: February 2024

Employing the Complex Dynamic Systems Theory (CDST) as a theoretical framework, this study explores the interconnectedness of cognitive and affective components within the Willingness to Communicate (WTC) among eight undergraduate students in a university classroom in China. The eight students were divided into four pairs, engaging in a communication task in English, followed by self-ratings of WTC using software and stimulated recall interviews. Interconnectedness was examined on a per-second basis. Analysis of these interconnected interactions revealed five patterns across three states of WTC. Among the rising, stable, and declining states of WTC, cognitive issues (e.g., discrepancy in viewpoints, vocabulary retrieval, self-monitoring) dynamically interacted with affective instances (e.g., anger, excitement, and emotional dependence on the partner), influencing the pattern of interconnectedness. The findings suggest that interconnectedness in WTC exhibits reciprocal interaction and nonlinearity. Speculation within these intricate cognitive-affective interactions suggests that affective components may have a greater influence on determining the level of L2 WTC. These insights highlight the dynamic interplay between WTC components and the system as a whole, revealing their uneven influence on the WTC system.
Revivalism in the New Life Movement and Cultural Conservatism in Early Chinese Films, 1934–1937
Authors: Li Jiuru
Published: February 2024

During the period of 1934–1937, the cultural atmosphere of revivalism was magnified by the New Life Movement (新生活运动, Xinshenghuo yundong). Within this period, certain films of cultural conservatism (文化保守主义, Wenhua baoshou zhuyi) were produced. These films, whose modern significance has been overlooked until recently, tended to be treated simply in the traditional narrative of film history.
mRLWE-CP-ABE: A revocable CP-ABE for post-quantum cryptography
Authors: Cianfriglia Marco , Onofri Elia , Pedicini Marco
Published: February 2024

We address the problem of user fast revocation in the lattice-based Ciphertext Policy Attribute-Based Encryption (CP-ABE) by extending the scheme originally introduced by Zhang and Zhang [Zhang J, Zhang Z. A ciphertext policy attribute-based encryption scheme without pairings. In: International Conference on Information Security and Cryptology. Springer; 2011. p. 324–40. doi: https://doi.org/10.1007/978-3-642-34704-7_23.]. While a lot of work exists on the construction of revocable schemes for CP-ABE based on pairings, works based on lattices are not so common, and – to the best of our knowledge – we introduce the first server-aided revocation scheme in a lattice-based CP-ABE scheme, hence being embedded in a post-quantum secure environment. In particular, we rely on semi-trusted “mediators” to provide a multi-step decryption capable of handling mediation without re-encryption. We comment on the scheme and its application, and we provide performance experiments on a prototype implementation in the Attribute-Based Encryption spin-off library of Palisade to evaluate the overhead compared with the original scheme.
Two Turkish patients with Primary Coenzyme Q10 Deficiency-7: case report and literature review
Authors: Sonuç Kartal Gülreyhan , Koç Yekedüz Merve , Köse Engin , Eminoğlu Fatma Tuba
Published: February 2024

Objectives

Primary Coenzyme Q10 Deficiency-7 (OMIM 616276) results from bi-allelic pathogenic variants in the COQ4 gene. Common clinical findings include hypotonia, seizures, respiratory distress, and cardiomyopathy. In this report, we present two patients diagnosed with Primary Coenzyme Q10 Deficiency-7 along with a review of previously published cases, with the aim being to provide a better understanding of the clinical and laboratory manifestations of the disease.

Case presentation

A 3-month-and-22-day-old male was admitted to our outpatient clinic due to poor feeding and restlessness. He was born following an uneventful pregnancy to a nonconsanguineous marriage. A physical examination revealed hypotonia, a dolichocephaly, periorbital edema, and long eyelashes. Blood tests revealed metabolic acidosis and elevated serum lactate levels, while the genetic analysis revealed a variant previously reported as pathogenic, c.437T>G (p.Phe146Cys), in the COQ4 gene. Genetic tests were also conducted on both mother and father, and it revealed heterozygous variant, 0.437T>G (p.Phe146Cys), in the COQ4 gene. As a result of these findings, the patient was diagnosed with neonatal encephalomyopathy–cardiomyopathy–respiratory distress syndrome (Primary Coenzyme Q10 Deficiency-7). A 1-year-old male was admitted to our clinic with complaints of hypotonia, seizures, and feeding difficulties. He was born following an uneventful pregnancy to a nonconsanguineous marriage. On his first day of life, he was admitted to the neonatal intensive care unit due to poor feeding and hypotonia. A physical examination revealed microcephaly, a high palate, poor feeding, weak crying, hypotonia, bilateral horizontal nystagmus, and inability to maintain eye contact. Laboratory findings were within normal limits, while a whole exome sequencing analysis revealed a homozygous variant previously reported as pathogenic, c.458C>T (p.A153V), in the COQ4 gene. The patient was diagnosed with Primary Coenzyme Q10 Deficiency-7.

Conclusions

Primary Coenzyme Q10 Deficiency-7 should be considered in the differential diagnosis of infants presenting with neurological and dysmorphic manifestations.
Religious diversity and culturally responsive learning and teaching for teacher candidates
Authors: Hwang Yooyeun , Wolthuis Ronald M. , Kasap Süleyman , Peterson Richard M.
Published: February 2024

Eleven teacher candidates who attended a Christian liberal arts college in the U.S. met a group of Turkish college students who were Muslim weekly via Zoom at least six times. These Turkish students were future English teachers, and the American students served as English conversation partners. The present study investigated the effectiveness of a program that could facilitate positive interactions between different religious groups and an in-depth understanding of culturally responsive teaching. Student reviews, two surveys before and after the program, and in-depth interviews revealed that the American students benefited from the experiences. They learned about distinct cultural traditions and the religion of Islam, discovered the similarities shared by the U.S, and Turkish cultures, appreciated both aspects, and became friends. In addition, they showed an authentic understanding of culturally responsive learning and teaching. The study suggests that the program enhanced cultural sensitivity, including to religious diversity, and the appreciation of culturally responsive learning and teaching among teacher candidates.
The crystal structure of (E)-1,2-bis(benzo[e][1,2]azaborinin-2(1H)-yl)ethene, C18H16B2N2
Authors: Zhou Jing
Published: February 2024

C18H16B2N2, monoclinic, C2/c (no. 15), a = 34.048(12) Å, b = 5.720(2) Å, c = 7.666(3) Å, β = 96.803°, V = 1482.5(9) Å3, Z = 4, R

gt
(F) = 0.0412, wR

ref
(F
2) = 0.1152, T = 150 K.
Dual numerical solutions of Casson SA–hybrid nanofluid toward a stagnation point flow over stretching/shrinking cylinder
Authors: Fadhel Mustafa Abbas , Asghar Adnan , Lund Liaquat Ali , Shah Zahir , Vrinceanu Narcisa , Tirth Vineet
Published: February 2024

A computational study of Casson sodium alginate–hybrid nanofluid of stagnation point flow through a shrinking/stretching cylinder with radius effect was carried out. Since the hybrid nanofluid is considered more contemporary type of nanofluid, it is currently being employed to enhance the efficiency of heat transmission rates. The aim of this study is to scrutinize the effect of particular parameters, such as the shrinking parameter, the Reynold number, the Casson fluid parameter, the solid copper volume fraction, and the Prandtl number, on the temperature and velocity profiles. Furthermore, the research looked into the variation of skin friction coefficient as well as the Nusselt number according to the Casson fluid parameters, and the copper solid volume fraction against shrinking parameter was investigated as part of this study. By including the appropriate similarity variables in the alteration, the nonlinear partial differential equation has been transformed into a set of ordinary differential equations (ODEs). In the end, the MATLAB bvp4c solver program is used to rectify ODEs. The findings revealed the existence of two solutions for shrinking surface with varying copper volume fractions and Casson fluid parameter values. Furthermore, the temperature profile rate was reduced in both solutions as the strength of the Reynold number, Casson fluid parameter, and copper volume fraction increased. Finally, non-unique solutions were obtained in the range of

λ
≥

λ

ci

\lambda \ge {\lambda }_{{\rm{ci}}}

.
Measurements of 222Rn exhalation rates, effective 226Ra contents, and radiological risks from geological samples of Kopili Fault Zone and gneissic complex of Shillong Plateau, India
Authors: Gogoi Pranjal Protim , Phukan Sarat , Barooah Debajyoti
Published: February 2024

This report unveils the outcomes of measurements of 222Rn exhalation rates, effective 226Ra content, and the annual effective dose for rocks and soil collected in the vicinity and far from the seismically active Kopili Fault Zone, India. LR-115 (II) nuclear track detector has been used to investigate radiation exposure in the seismically active fault zone and gneissic complex of the Shillong Plateau, which have significant geological characteristics and frequently produce earthquakes. In this study, 222Rn mass exhalation rates for granite, gneiss, and soil samples collected near and far from the fault were calculated to be in the ranges of 73.2–83.0, 11.0–14.8, 21.1–70.7 and 34.3–65.5, 6.4–9.9, 19.1–28.9 mBq kg−1 h−1, respectively. Surface exhalation rates of 222Rn for granite, gneiss, and soil samples collected near and far from the fault varied between 2428.8–2751.7, 365.6–491.9, 698.3–2345.9, and 1138.6–2172.7, 211.9–328.2, 634.9–960.0 mBq m−2 h−1, respectively. The 226Ra contents of granite, gneiss, and soil collected in similar distributions were found to vary from 9.76–11.06, 1.47–1.98, 2.8–9.4, and 4.58–8.74, 0.85–1.32, 2.6–3.6 Bq kg−1, respectively. The annual effective doses attributed to 222Rn inhalation from exposure to the samples were calculated to be in the ranges of 176.3–199.8, 26.5–35.7, 50.7–170.3 and 82.7–157.7, 15.4–23.8, 46.1–69.7 μSv y−1, respectively, for granite, gneiss, and soil. The lifetime fatality-risks have also been analysed in this study. The samples that were collected in close proximity to the fault showed higher values than those that were collected farther away. However, the results reveal that the measured values are within the globally recognised permissible range.
Alpha-hydroxyisobutyric acid-assisted solid-liquid chromatography for the separation of lutetium-177 from neutron-irradiated natural ytterbium
Authors: Billah Aulia Arivin , Prasetya Kukuh Eka , Triyatna Fany , Sarwono Daya Agung , Abidin Abidin , Rindiyantono Fernanto , Maiyesni Maiyesni , Munir Miftakul , Saptiama Indra , Ritawidya Rien , Zulys Agustino
Published: February 2024

The production method of no-carrier added Lutetium-177 (177Lu) was developed from a neutron-activated natural ytterbium (Yb) using column chromatography separation method. Dowex W50 X8 resin and a combination of alpha-hydroxyisobutyric acid (α-HIBA) and hydrochloric acid (HCl) were used as column filler and eluent, respectively. HCl increased the desorption and separation between 177Lu and Yb at a concentration of 0.25 M, while the optimal α-HIBA concentration was 0.15 M, resulting in 177Lu yield of 81.19 % and low impurities (175Yb: 9.28 %, and 169Yb: 2.09 %). Nevertheless, further study using an enriched 176Yb target is essential to significantly increase the specific activity of 177Lu.
Activation cross sections for the formation of 51Cr and 52,54Mn in interactions of deuterons with iron
Authors: Hasan M. Mehedi , Uddin M. Shuza , Chakroborty A. Kumer , Basunia M. Shamsuzzoha
Published: February 2024

Excitation functions for the formation of the radionuclides 51Cr, 52Mn and 54Mn via deuteron-induced activation of natural iron were measured up to deuteron energies of 35 MeV. The available experimental databases of the reaction products 51Cr, 52Mn and 54Mn were extended and compared with the nuclear model calculations using the TALYS code. The model calculations reproduce our measured data after a careful choice of the input model parameters. Some information obtained on competition between the emission of multinucleons and a bound α-particle.
Estudo sobre a Propagação da Cultura da Medicina Tradicional Chinesa no Brasil
Authors: Wang Ruotong , Filho Floriano
Published: February 2024

Diferentes sociedades e culturas têm vários conhecimentos sobre as causas das doenças. Normalmente, as pessoas interpretam sua constituição corporal e respondem a fenômenos clínicos com base em conceitos, símbolos e protocolos de diagnóstico que acumularam e internalizaram por meio de suas experiências sociais e culturais. As representações sociais da saúde e da doença estão associadas a percepções da vida e da sociedade em diferentes culturas, o que poderia explicar a reação da sociedade brasileira ao novo conceito de tratamento proporcionado pela cultura da Medicina Tradicional Chinesa (MTC). A globalização tem aprofundado o grau de trocas culturais entre países e novos hábitos chineses ganharam crescente influência no Brasil. Após décadas de assimilação e adoção, a MTC no Brasil evoluiu para um estágio, a nível técnico e cultural, relativamente maduro.
Flow cytometric analysis of lymphocyte subsets, monocytes, and HLA-DR expressions on these cells in patients with COVID-19
Authors: Ozcan Nurgul , Caglayan Murat , Yalcindag Ali , Ozcan Oguzhan
Published: February 2024

Objectives

We aimed to investigate the lymphocyte subsets and monocytes by flow cytometry and the correlations between their HLA-DR expressions and inflammatory markers in patients with COVID-19.

Methods

The study included 49 patients with COVID-19 and 42 healthy controls. Blood samples were taken into EDTA tubes. WBC counts were analyzed by the Sysmex/XN-1000i device, and lymphocyte subsets and monocytes were analyzed by flow cytometry. The percentage of HLA-DR expression on cells and median fluorescence intensity (MFI) values were recorded to detect activation. Lymphocyte counts were calculated using the dual-platform method. Correlations between antigen expression and ferritin, CRP, and D-dimer levels were analyzed.

Results

The patient group had lower WBC and lymphocyte counts but significantly higher monocyte counts and neutrophil/lymphocyte ratios compared to controls (p=0.009, p=0.045, respectively). The patient group had significantly lower T lymphocyte counts (p=0.008). B lymphocyte counts and percentages were lower (p<0.001, p=0.004) in the patient group. There was no significant difference between the two groups in terms of NK cells. T helper and T cytotoxic lymphocyte counts were significantly lower, but there was no change in CD4/CD8 ratios. The percentage of HLA-DR expression on T lymphocytes, HLA-DR MFI values of T cytotoxic cells, and HLA-DR MFI values of CD16+ monocytes were significantly increased in the patient group (p=0.001, p=0.004, p<0.001, respectively). CRP was positively correlated with HLA-DR expression on T lymphocytes (r=0.501, p<0.001).

Conclusions

HLA-DR MFI values may be an important marker for demonstrating the function of both T cytotoxic cells and CD16+ monocytes in COVID-19.
Conjugate heat transfer analysis on double-wall cooling configuration including jets impingement and film holes with conformal pins
Authors: Chen Chenlin , Jiang Yuting , Zhang Haosu , Dong Liangchen , Zhang Zitong
Published: February 2024

A double-wall cooling configuration including impingement holes and film holes with conformal pins is studied by CFD numerical simulation in this paper. The influences of three different injection directions of film holes at six blowing ratios ranging from 0.4 to 2.5 on conjugate heat transfer characteristic are investigated. Impingement-only arrangements with corresponding pin directions are adopted to illustrate the film cooling gains and the impingement cooling contribution. The results indicate that the effect of different pin directions on overall cooling effectiveness is non-significant. At low blowing ratio, the forward injection arrangement has higher overall cooling effectiveness since greater gain of film cooling, and is transcended by reverse injection arrangement as coolant supplement increases. Moreover, although the cooling effectiveness for normal injection case is the lowest within the whole range of mass flow rate, it possesses the most uniform distribution of cooling effectiveness in downstream region at high blowing ratio.
Introduction special issue: marking the truth: a cross-linguistic approach to verum
Authors: Jordanoska Izabela , Kocher Anna , Bendezú-Araujo Raúl
Published: February 2024

This special issue focuses on the theoretical and empirical underpinnings of truth-marking. The names that have been used to refer to this phenomenon include, among others,counter-assertive focus,polar(ity) focus,verum focus,emphatic polarityor simplyverum. This terminological variety is suggestive of the wide range of ideas and conceptions that characterizes this research field. This collection aims to get closer to the core of what truly constitutes verum. We want to expand the empirical base and determine the common and diverging properties of truth-marking in the languages of the world. The objective is to set a theoretical and empirical baseline for future research on verum and related phenomena.
Traveling wavefronts in an anomalous diffusion predator–prey model
Authors: Abobakr Asmaa H. , Hussien Hussien S. , Mansour Mahmoud B. A. , Elshehabey Hillal M.
Published: February 2024

In this paper, we study traveling wavefronts in an anomalous diffusion predator–prey model with the modified Leslie–Gower and Holling-type II schemes. We perform a traveling wave analysis to show that the model has heteroclinic trajectories connecting two steady state solutions of the resulting system of fractional partial differential equations and corresponding to traveling wavefronts. This also includes numerical results to show the existence of traveling wavefronts. Furthermore, we obtain the numerical time-dependent solutions in order to show the evolution of wavefronts. We find that wavefronts exist that travel faster in the anomalous subdiffusive regime than in the normal diffusive one. Our results emphasize that the main properties of traveling waves and invasions are altered by anomalous subdiffusion in this model.
Effective synthesis of nitrogen doped carbon nanotubes over transition metal loaded mesoporous catalysts for energy storage of supercapacitor applications
Authors: Rajamanickam Ragavan , Ganesan Boopathi , Kim Ikhyun , Hasan Imran , Arumugam Pandurangan , Paramasivam Sivaprakash
Published: February 2024

In the present work, the nitrogen doped carbon nanotubes (NCNTs) were prepared over various transition metal loaded mesoporous SBA-15 catalysts by the CVD method for supercapacitor application. Mesoporous Siliceous SBA-15 support and transition metals (Cr, Fe, Co, Ni and Cu) loaded SBA-15 (M/SBA-15) catalysts were prepared through hydrothermal and wet impregnation process, respectively. The catalytic performance of all the prepared catalysts were evaluated by synthesizing NCNTs by CVD at 800 °C using triethylamine as the precursor. The NCNTs produced over Ni/SBA-15 have an outstanding specific capacitance of 263 F g−1 at 0.5 A g−1 in 1.0 M H2SO4 aqueous solution according to the electrochemical investigations because of its increased nitrogen content of 3.2 at.%. Furthermore, a two-electrode based symmetric device was construct and tested. The fabricated device showed the specific capacitance of 113 F g−1 at 0.5 A g−1 with high energy density of 10 W h Kg−1 at the power density of 333 W kg−1. The NCNT showed 96 % of capacitance retention even after 1000 cycles. The synergism of high nitrogen content and bamboo-like graphitized structure resulted in excellent specific capacitance, better cycle life and rate performance of the prepared NCNTs as supercapacitor electrode.
Feature Extraction Algorithm of Food Spoilage Early Warning Data Based on Machine Learning and Internet of Things
Authors: Ding Haixia
Published: February 2024

In view of the problems of the current method, such as the large error, low detection efficiency, and poor analysis ability of food deterioration early warning, a spectral feature extraction algorithm of food spoilage early warning data based on machine learning and Internet of Things was proposed. Based on Internet of Things technology, collect food spoilage warning images. The k-means algorithm is used to identify the food variable mass spectrometry data, and the three-dimensional visual feature reconstruction method is devised to reconstruct the image characteristics of the food variable mass spectrum, and the spectral characteristics of the food deterioration warning data are obtained. Based on machine learning, the features of food variable mass spectrometry image are decomposed, and the gray pheromone of food variable mass spectrometry image is extracted. Under the convolutional neural network structure, the spectral features of food deterioration early warning data are vectorized. Based on the results of spectral vectorization, the spectral features of food deterioration early warning data are extracted. The experimental results show that the proposed method can effectively improve the efficiency of food deterioration detection and reduce the error of food deterioration detection for safe environment.
An Automatic Frequency Control System for Transmission Machinery Based on Back-Propagation Neural Network Algorithm in the Internet of Things Environment
Authors: Meng Xiaoli
Published: February 2024

In order to reduce the error of automatic frequency control of transmission machinery under different disturbances, an automatic frequency control system of transmission machinery based on back-propagation (BP) neural network algorithm is designed. The gradient descent method and Newton method are combined to optimize the BP neural network. Aiming at the periodicity and trend of the actual mechanical vibration frequency time series, the first order backward difference is processed by the difference method, and the autoregressive sequence is derived to obtain the control model. The experimental results show that the system can realize the automatic control of transmission mechanical frequency with small error under different types of interference, and the control effect is ideal.
Of Mice and Men: The Inter-individual Variability of the Brain's Response to Drugs
Authors: Löscher Wolfgang
Published: February 2024

Biological variation is ubiquitous in nature. Despite highly standardized breeding and husbandry under controlled environmental conditions, phenotypic diversity exists in laboratory mice and rats just as it does in humans. The resulting inter-individual variability affects various characteristics of animal disease models, including the responsiveness to drugs. Thus, the common practice of averaging data within an experimental group can lead to misinterpretations in neuroscience and other research fields. In this commentary, the impact of inter-individual variation in drug responsiveness is illustrated by examples from the testing of antiseizure medications in rodent temporal lobe epilepsy models. Individual mice and rats rendered epileptic by treatment according to standardized protocols fall into groups that either do or do not respond to antiseizure medications, thus mimicking the clinical situation in patients with epilepsy. Population responses are not normally distributed, and divergent responding is concealed in averages subjected to parametric statistical tests. Genetic, epigenetic, and environmental factors are believed to contribute to inter-individual variation in drug response but the specific molecular and physiological causes are not well understood. Being aware of inter-individual variability in rodents allows an improved interpretation of both behavioral phenotypes and drug effects in a pharmacological experiment.
Musculoskeletal Disorders and Stress among Moroccan Dentists: A Cross Sectional Study
Authors: Karami Malika , Drouri Sofia , Al jalil Zineb , Ettaki Salma , Jabri Mouna
Published: February 2024

Background and aim: Dentists' treatment tasks require repetitive actions, uncomfortable postures, and intense effort, all of which can lead to health disorders. The aim of the study was to describe the prevalence of musculoskeletal disorders among Moroccan dentists and the factors associated with these diseases. Material and methods: To conduct a descriptive cross-sectional survey, an anonymous questionnaire on occupational health problems was distributed to a representative sample of 310 Moroccan dentists. Sample size calculation and sampling were performed using Epi info software. Data were analyzed using the SPSS (Statistical Package for the Social Sciences) software. The associations among the frequency of variables were evaluated by the chi-square test (P < 0.05).Results: Out of 310 questionnaires distributed, we received 286 responses, for a response rate of 95.33%. A total of 286 dentists were included in our survey. The mean age of the participants was 41.19 (±7.63) years. The results showed that 62.9% of the surveyed dentists complained of musculoskeletal disorders. Moreover, 79.4% of practitioners had high stress levels. Concerning sports activity, 55.9% of the practitioners practiced a sport activity.Conclusions: For Moroccan dentists, the occurrence of musculoskeletal pain is a critical problem. Considering the scale of the problem, it is necessary to implement education in ergonomics among dentists and dental students, and to promote the holistic health of dental professionals. As musculoskeletal pain is a critical issue for Moroccan dentists, it's judicious to consider ergonomics courses at the beginning of dental education programs, then every year until graduation, and to provide professional dentists with continuous training all along their careers.
Impact of green synthesized zinc oxide nanoparticles for treating dry rot in potato tubers
Authors: Abdelhady Mohamed A. , Abdelghany Tarek M. , Mohamed Sonya H. , Abdelbary Salah A.
Published: February 2024

Potato (Solanum tuberosum) crops have experienced a 22% reduction due to attacks from microbial pathogens and pests. Dry rot disease occurred from risks in El-Minya governorate, Egypt, where potato is the major cultivated crop. Potato cultivar ‘Cara’ samples were collected from the markets of six regions in El-Minya for isolation. They were also tested for the application of biosynthesized zinc oxide nanoparticles (ZnONPs) for disease management. The ability of Exserohilum rostratum to synthesize ZnONPs was documented via UV-visible, X-ray diffraction, Fourier transform infrared spectrum, and transmission and scanning electron microscopy. Spherical shape and crystallite small size (51.0 ± 3.0 nm) were attributed to the created ZnONPs. The ZnONPs were applied in the bio-control of the causative agent (Fusarium nygamai) of dry rot disease and large economic loss of potato cv. ‘Cara’ productivity. The mycosynthesized ZnONPs by E. rostratum at 100 μg/ mL (3 mM) showed antifungal activity against F. nygamai with higher reducing value of mycelium growth diameter 2.0 ± 0.14 cm compared to Revanol 50%, traditional product with a diameter of 3.85 ± 0.10 cm. Overall, ZnONPs are an excellent agent that can be applied to repress the most common fungal disease of potato.
Non-interacting Control of Pressurised Flow Boxes
Authors:   University of Manchester Institute of Science & Technology, Johnston R. E.
Published: February 2024

The dynamics of a pressurised flow box can be reasonably well described by simple transfer functions, as Dr Smith has shown. Fig. 1 represents the system as multi-variable (two input/two output).
Comments on Head Box Control
Authors:   ASEA, Dept. FAP, Vasteras, Sweden, Gunnarson K. G. A.
Published: February 2024

The papers on this subject have described total head controlled by pneumatic valves as actuators. In the Chao & Sanborn paper, the authors mention that a time lag of 5 s or more must be tolerated when using these actuators. Ι suggest that somewhat more rapid control can be arranged by using a modern electronic controller.
Computer Control of a Papermachine Using a Linear State Space Model
Authors:   Control Group, University Engineering Department, Cambridge, Hem S.
Published: February 2024

Perturbation experiments on a Fourdrinier papermachine have confirmed that its dynamic behaviour can be represented adequately by a state space model in the form of a matrix difference equation. The basic equations involved have been treated in general terms, but the discussion on the model building and control system design is made more explicit by reference to a specific system. Methods have been developed for investigating and describing the papermaking system as a process to which modern control theory can be applied. It has been shown how the model can be used to determine possible control strategies to change grade in such a way that t e grade change time is at a minimum and certain papermaking criteria are obeyed. The control objectives have been stated by analytical performance criteria in the form of quadratic cost functions. Α simple grade change at constant machine speed was achieved by altering the thick stock flow according to a trajectory determined by the rate constraint of the flow valve. It was found necessary to manipulate and synchronise the thick stock and thin stock flows together with the machine speed in order to change grade at constant production rate. Based on optimum control and filter theory, an on-line controller has been designed to manipulate the thick stock flow in order to minimise the variance of the measured basis weight . The developed formulation incorporates optimum estimation of inaccessible state variables as an implicit feature. The control action is given by a proportional term together with a memory term to account for past values of control and basis weight. The controller has been implemented on a machine and is shown to have stabilised the system considerably.
The Future of Control Engineering
Authors:   Professor of Engineering, University of Cambridge, Coales J. F.
Published: February 2024

Up to a few years ago, all industrial processes were either batch processes or were operated on a steady state basis, although some (like papermills, automatic looms and steel-rolling mills) operated in steady state only for a limited period until the specification or grade of the output had to be changed. Thus, industrial processes can be divided into three classes: 1) Batch processes. 2) Continuous processes. 3) Quasi-batch processes.
Attempts to Produce a Three-Dimensional Paper Structure
Authors:   Bruderhaus Maschinen GmbH, Reutlingen, W. Germany, Schmidt Sylvia
Published: February 2024

Mr Radvan mentioned (in the section on page 145 of attempts to produce a three-dimensional paper structure) several different approaches to the attempts at orienting the fibres in the Z-direction with the claim of increasing the bulk. As he also mentioned, this is of the greatest interest in the production of wet-laid non-wovens. In addition to the method of upending some of the fibres, especially the short fibres and enmeshing them vertically in the web, a further method has been discovered. ⁽¹⁾ This uses crimped synthetic short-cut fibres in such a way that only a section of a fibre is located in the Z-direction and it is not necessary therefore to upend a complete fibre. Furthermore, this does not involve any after-treatment.