bluuebunny/crossref_metadata_2025 huggingface dataset:
Quantitative Estimation of Aflatoxin Level in Poultry Feed in Selected Poultry Farms
Authors: Naveed Muhammad , Haleem Kashif Syed , Ghazanfar Shakira , Tauseef Isfahan , Bano Naseem , Adetunji Charles Oluwaseun , Saleem Muhammad Hamzah , Alshaya Huda , Paray Bilal Ahamad
Published: February 2022

Statement of Novelty. Poultry feed contamination due to mycotoxins is one of the major threats to the growing poultry industry. Surveillance of different mycotoxins, including aflatoxin, is very important to control economic and health hazards associated with these toxins. Studies reporting aflatoxin levels in poultry feed are limited. Therefore, this study was conducted to examine the occurrence of total aflatoxin in poultry feed. This study is the first‐ever documentation about the frequency and quantitative estimations of total aflatoxin levels in poultry feed consumed to provide solid feedback to the poultry industrialists and researchers involved in studying the mycotoxins. Objective. Contamination of poultry feed with mycotoxins such as aflatoxin is a major concern for the poultry industry that results in a significant economic loss and directly affects consumers. Monitoring the aflatoxin levels in poultry feed is crucial for controlling economic loss and decreasing the health hazards to the population. This study was conducted to examine the occurrence of total aflatoxin in poultry feed in a high consumption area. Three different poultry feeds, i.e., starter, grower, and finisher, were assessed through continuous sampling from farms. The incidence of positive samples for aflatoxin contamination was 92.5%. Grower feed had the highest frequency (100%) of aflatoxin positive samples and aflatoxin levels with a mean value of 56.34 ppb. Further, the range of moisture content was around 6.8%‐10.98%. No significant correlation between humidity and aflatoxin contamination was revealed when analyzed by Pearson’s correlation coefficient with r2 of 0.05 and p value of 0.13. The results warrant the need for constant monitoring programs for the prevention of aflatoxin contamination in local poultry farms
Effects of Long‐Term Regular Continuous and Intermittent Walking on Oxidative Stress, Metabolic Profile, Heart Rate Variability, and Blood Pressure in Older Adults with Hypertension
Authors: Prasertsri Piyapong , Phoemsapthawee Jatuporn , Kuamsub Sirigoon , Poolpol Kulwara , Boonla Orachorn
Published: February 2022

It is documented that regular exercise is beneficial for improving the antioxidant system, metabolic system, cardiac autonomic function, and blood pressure in those with hypertension. In this regard, low‐intensity exercise is recommended for older adults, particularly those with chronic diseases. This study aimed to compare the effects of long‐term regular continuous walking with intermittent walking on oxidative stress, metabolic profile, heart rate variability, and blood pressure in older adults with hypertension. Forty‐three participants with hypertension aged 60–80 years were randomly divided into the continuous or intermittent walking (CON or INT) groups. Participants in the CON group walked for 30 min, 3 days/week for 12 weeks. Participants in the INT group split 30 min walking into 3 identical sessions punctuated by a 1 min rest after each session, 3 days/week for 12 weeks. Antioxidant and oxidative stress markers, metabolic markers, heart rate variability, and blood pressure were evaluated before and after the exercise program. Glutathione (GSH), GSH to GSH disulfide (GSSG) ratio, and total GSH increased significantly, and GSSG and malondialdehyde decreased significantly in both groups (p < 0.05) without significant differences between groups. Triglycerides, ratio of total cholesterol to high‐density lipoprotein cholesterol, and atherosclerogenic index were significantly lower in the CON group than those in the INT group (p < 0.05). The standard deviation of the NN intervals and root mean square of the successive differences were significantly higher, and low‐frequency power was significantly lower in the INT group than that in the CON group (p < 0.05). No significant changes in blood pressure were noted in both groups, and nor were there any significant differences between groups. Long‐term regular continuous and intermittent walking may comparably increase antioxidants, reduce oxidative stress, and be beneficial for improving important blood pressure‐related outcomes, including metabolic profile or cardiac autonomic function in older adults with hypertension.
Container Terminal Berth and Yard Collaborative Allocation for Import and Export Synchronous Operations by Computational Logistics
Authors: Li Bin , Jiang Xiong , Lei Junhan
Published: February 2022

Container terminal operators have practical and clear requirements on improving operational efficiency and service level to address running challenges. The resource allocation and collaborative scheduling of quayside berth and storage yard are vital issues in the optimization of container terminal handling systems (CTHSs). The allocation of berth in quayside and blocks on storage yard directly affects the running efficiency of CTHS. Consequently, we focus on the berth and yard collaborative allocation for import and export synchronous operations (BYCA‐IESOs) and propose the BYCA‐IESO research model based on synchronous or asynchronous integrated scheduling strategy by computational logistics. The BYCA‐IESO model is a mixed integer quadratic programming model to minimize multiple time consumption of calling liners and the total horizontal transferring distances of yard trailers at container terminals. Furthermore, we design other two allocation policies for comparison on the BYCA‐IESO, which are both multistage scheduling strategy profiles. CPLEX 20.1.0 is applied to implement and solve the model and tactics of BYCA‐IESO. Accordingly, the feasibility, validity, and relative merits of the models and strategies are obtained and verified by analyzing and comparing multiple numerical experimental results.
Assessment of the Morphology and Degenerative Changes in the Temporomandibular Joint Using CBCT according to the Orthodontic Approach: A Scoping Review
Authors: Dygas Sebastian , Szarmach Izabela , Radej Ilona
Published: February 2022

Background. Available knowledge about disorders of temporomandibular joint structures and their association with orthodontic variables are still lacking. Objectives. This article is aimed at to identifying studies and presenting current information on the relationship between morphology diversity and the occurrence of degenerative changes in structures of the temporomandibular joint (TMJ) assessed by cone‐beam computed tomography (CBCT) in the context of craniofacial morphology and malocclusion. Search Methods. The review was conducted by analyzing the PubMed (including Medline), Cochrane Library, Web of Science, and Scopus electronic databases up to November 2021 using two different comprehensive search strategies based on keywords as well as additional manual searches. Eligibility Criteria. Selection of the literature was carried out according to the PRISMA‐ScR checklist. Methodological quality of the selected studies was evaluated using JBI Critical Appraisal Tool. Results. The electronic databases search revealed 3331 records. After applying the eligibility criteria and JBI assessment, a total of 33 studies were extracted and selected to the study. The review was divided into 4 parts, in which the following correlations were assessed in terms of orthodontic variables: TMJ degenerative changes, joint space and condylar position, condylar shape, TMJ articular eminence, and fossa. Conclusions. Skeletal and dental class II malocclusion with a retrognathic mandible, a hypodivergent skeletal pattern with a steep mandibular plane, and significant lateral mandibular displacement can be risk factors for developing radiographically detectable degenerative changes. Patients with skeletal and dental class III malocclusion as well as a hyperdivergent skeletal pattern may be at greater risk of TMD occurrence compared with other groups. Further studies are necessary to clarify the relationship between the position of the condylar processes and the presence of degenerative changes in the temporomandibular joints among orthodontic patients.
Feedback Control for Passivity of Memristor‐Based Multiple Weighted Coupled Neural Networks
Authors: Wang Xiang-Bo , Tang Hong-An , Xia Qingling , Zhao Quanjun , Tan Gang-Yi
Published: February 2022

This paper investigates the passivity of multiple weighted coupled memristive neural networks (MWCMNNs) based on the feedback control. Firstly, a kind of memristor‐based coupled neural network model with multiple weights is presented for the first time. Furthermore, a novel passivity criterion for MWCMNNs is established by constructing an appropriate Lyapunov functional and developing a suitable feedback controller. In addition, with the assistance of some inequality techniques, sufficient conditions for ensuring the input strict passivity and output strict passivity of MWCMNNs are derived. Finally, the validity of the theoretical results is verified by a numerical example.
A New Model for Simulating the Imbibition of a Wetting-Phase Fluid in a Matrix-Fracture Dual Connectivity System
Authors: Ning Xuewei , Ewing Robert , Hu Qinhong , Wang Qiming , Zhang Xiaoming
Published: February 2022

The imbibition experiment is an effective approach for measuring petrophysical properties of porous media, with many such experiments performed over the past decade. Quite some empirical, analytical, and numerical models have been developed to simulate spontaneous imbibition of the wetting phase fluid into porous media, but limitations still exist. In previous studies, the imbibition process has been considered to give a piston-like displacement or the porous medium modeled as multiply-sized pores linked with bonds; both approaches fail to yield comprehensive results due to their neglect of the presence of irregular fractures or nonuniform flow paths through the matrix. By building a numerical model for simulating laboratory-scale experimental data, we performed imbibition tests on several fractured Barnett Shale samples having fractures either parallel (

P

) or transverse (

T

) to the bedding plane and used MATLAB to build a new numerical model by combining the imbibition process in fractures and the matrix using concepts from percolation theory. The experimental data show that the rocks with

P

-direction fractures have a more steady increase of imbibition rates than the case of

T

-direction one. As the shale matrix with low pore connectivity hampers the upward water movement, the imbibition rate of shales with

T

-direction fractures will decrease suddenly after the bottom layer in contact with water is saturated during the initial period. This wetting phase movement (WPM) model can simulate 3D porous media with 2D fractures. The rate of imbibition by fractured porous media is associated with physical parameters such as porosity and fracture distribution (e.g., the number and angle of fractures). Using Monte Carlo methods, we examined fracture parameters and predicted elapsed time and cumulative water imbibition, for the Barnett Shale samples. The results show that the rate of imbibed water mass is sensitive to the number of fractures directly connected to water source, and the connectivity between two neighboring grid cells is a key parameter for the wetting-front progression. The findings of this study can help to better understand the imbibition process with multiple influencing processes and factors in fractured-matrix rocks. Although the experiments, data simulation, and prediction results are based only on Barnett Shale samples, the model is readily applicable to imbibition tests of other fractured rocks to show the spatial and temporal behavior during a dynamic imbibition process that are not easily captured experimentally.
[Retracted] Rough Set Construction and Entropy Weight Evaluation of Urban Higher Education Resource Carrying Capacity Based on Big Data
Authors: Wang Lulu , Liu Chao , Talha Muhammad
Published: February 2022

With the popularization of higher education, the scale of urban higher education continues to expand, and the contradiction between the supply and demand of educational resources becomes increasingly prominent, which restricts the steady development of urban higher education. Based on the rough set theory, this paper constructs a rough set of big data of urban higher education resource carrying capacity from the three levels of higher education core resources, urban economic resources and urban basic resources, and evaluates the entropy weight of the city where the university is located. According to the theoretical knowledge of higher education resource carrying capacity, the system deconstructs and expounds the balance mechanism of higher education resource carrying capacity, which provides solid theoretical support for the development of the paper. The research shows that the agglomeration development of higher education resources can improve the carrying capacity of urban higher education resources. The second section performed well on the whole, and the index distribution was more uniform. The third interval index structure distribution is complex and uneven, and the overall performance is general. The fourth section belongs to the poor section of educational carrying capacity with a low overall index. It can be seen that the carrying capacity of higher education resources varies significantly, which provides a scientific basis for improving the carrying capacity of higher education resources and theoretical and policy basis for realizing rational allocation and sustainable carrying capacity of higher education resources.
Robot Indoor Positioning and Navigation Based on Improved WiFi Location Fingerprint Positioning Algorithm
Authors: Ye Hemin , Peng Jiansheng
Published: February 2022

In response to the traditional WiFi location fingerprint positioning algorithm still having a low positioning accuracy, which is difficult to meet the robot indoor positioning and navigation needs, a series of improvements are made to the traditional WiFi location fingerprint positioning algorithm, so that the positioning accuracy of the algorithm can be effectively improved. At the stage of building the location fingerprint library offline, WiFi signals are collected at each reference point by reducing the reference point spacing of the traditional location fingerprinting algorithm and then using different time period collection methods. The WiFi signal strength values are standardized using the standardization processing method to improve the specificity of traditional location fingerprinting. In the real-time localization stage, the WiFi signals collected from the unknown location points are averaged, and then, the fingerprint similarity calculation is performed using a matching method based on the magnitude of the Marxian distance as a similarity reference. In order to eliminate the location fingerprints that degrade the localization accuracy, an improved adaptive

K

-value WKNN algorithm is integrated at the end of the localization algorithm. The improved localization algorithm and the proposed raster-based navigation algorithm are validated in a fixed experimental environment. The experimental results show that the probability of the improved algorithm’s positioning error within 0.4 m is 49%, which is a 35% improvement over the conventional algorithm. Combining the improved positioning algorithm with our proposed grid-based navigation algorithm, the final navigation error probability within 0.8 m is 62%.
Improving the Thermal Properties of Polycarbonate via the Copolymerization of a Small Amount of Bisphenol Fluorene with Bisphenol A
Authors: Zhang Xiaozhou , Liu Yang , Li Xin , Liu Xin , Jian Xigao , Wang Jinyan
Published: February 2022

Polycarbonate is an attractive transparent plastic with high mechanical/thermal properties. A family of copolycarbonates of bisphenol-A (BPA), 9, 9-bis (4-hydroxyphenyl) fluorene (BHPF), and diphenyl carbonate (DPC) were prepared by a transesterification polymerization. The weight-average molecular weight of the polycarbonates ranges from 65,000 to 107,000 g/mol; the copolycarbonates showed

T

g

and

T

d
−
5
%

from 63-70°C and 100-105°C higher than the control, respectively. Meanwhile, the processing properties of polycarbonate remain unchanged. These properties endow the polymers with potential for use as high-temperature resistance materials.
Changes of Electrocardiogram and Myocardial Enzymes in Patients with Intracerebral Hemorrhage
Authors: Qin Guannan , Dai Chuanyang , Feng Shuang , Wu Guofeng
Published: February 2022

Purpose. Cardiac complications are common in patients with spontaneous intracerebral hemorrhage (ICH). The present study is aimed at observing the incidence of cardiac complications after ICH, so as at improving the understanding of the relationship between cardiac complications and ICH. Methods. This is a retrospective study on analyzing electrocardiogram (ECG) and serum myocardial enzyme of 208 patients with ICH admitted to a tertiary hospital from 2018 to 2019. For each patient, demographics, medical history, clinical presentation, ECG, serum myocardial enzyme, and head CT on admission were reviewed. Mortality was noted. Results. Among the 208 patients, 145 (69.71%) had one or more ECG abnormalities. The top three abnormalities were corrected QT interval (QTc) prolongation 52 (25%), ST depression 48 (23.08%), and T wave inversion 38 (18.27%). One hundred and thirty-nine patients (66.83%) had increased serum levels of at least one kind of myocardial enzyme, which were high-sensitive cardiac troponin T (hs-cTnT) 79 (37.98%), lactic dehydrogenase (LDH) 80 (38.46%), creatine kinase (CK) 57 (27.40%), and creatine kinase-myocardial subfraction (CKMB) 57 (27.40%). The logistic regression analysis showed the following: secondary intraventricular hemorrhage (SIVH) (odds ratio (OR) 5.32; 95% confidence interval (CI) 2.55–11.08;

p
<
0.001

) and hematoma

volume
>
30

 ml (OR 3.81; 95% CI 1.86–7.81;

p
<
0.001

) were independent predictive factors of QTc prolongation; thalamus location (OR 5.79; 95% CI 1.94–17.28;

p
<
0.05

), hematoma

volume
>
30

 ml (OR 24.187; 95% CI 3.14-186.33;

p
<
0.05

), insular involvement (OR 19.08; 95% CI 5.77-63.07;

p
<
0.001

), and SIVH (OR 2.62; 95% CI 1.69-5.86;

p
<
0.05

) were independent predictive factors of ST depression; insular involvement (OR 2.90; 95% CI 1.12–7.50;

p
<
0.05

) and hematoma

volume
>
30

 ml (OR 1.98; 95% CI 1.06–3.70;

p
<
0.05

) were independent predictive factors of increase of CK; Glasgow Coma Scale (GCS) (OR 0.86; 95% CI 0.78–0.98;

p
<
0.05

) and insular involvement (OR 5.56; 95% CI 1.98–15.62;

p
<
0.05

) were independent predictive factors of increase of CKMB; SIVH (OR 2.05; 95% CI 1.07–3.92;

p
<
0.05

) was independent predictive factor of increase of LDH; age (OR 1.03; 95% CI 1.01–1.06;

p
<
0.05

), blood glucose on admission (OR 1.10; 95% CI 1.01–1.20;

p
<
0.05

), and history of antiplatelet drug use (OR 3.50; 95% CI 1.01–12.12;

p
<
0.05

) were independent predictive factors of hs-cTnT. All the injury indexes were not related to in-hospital mortality. Conclusion. The study suggests that insular involvement, hematoma

volume
>
30

 ml, and SIVH are the strongest risk factors for ECG abnormalities and elevated myocardial enzymes after ICH followed which are the risk factors such as GCS, age, admission blood glucose, and ICH location in the thalamus.
Intelligent Perception and Positioning Technology of Internet of Things by
K
-Nearest Neighbor Matching Algorithm
Authors: Zou Jinting , Wu Xingrui , Zeren Zou
Published: February 2022

To study the intelligent sensing and positioning technology of the Internet of Things (IoT) combined with the

K

-nearest neighbor algorithm, the

K

-nearest neighbor matching algorithm and optimization algorithm are introduced using the indoor Wi-Fi positioning technology. The study proposes weighting

K

-nearest neighbor (WKNN) by weighted Euclidean distance, adaptive weighted Euclidean distance K-nearest neighbor Wi-Fi localization algorithm, and optimal

K

-value Wi-Fi fingerprint localization algorithm. The experimental error is verified. The experimental results show that the lowest error of continuous acquisition of 3 s signal values in experimental environment A is 1.8815 m, which is 10.13% lower than the error of only acquiring 1 s for the same

K

-value. The lowest error of environment B scheme two can reach 1.8862, which is 7.06% lower than the error of the same

K

-value. The optimal

K

-value Wi-Fi fingerprint positioning algorithm by distance constraint has better positioning accuracy than other KNN positioning algorithms, and the positioning fluctuation is smaller. The average positioning error of the optimal

K

in environment A is 1.2987 m, which is 0.2797 m less than the average of the traditional positioning algorithm. In environment B, the average positioning error of the optimal

K

is 1.5353 m, which is 0.3253 m less than the average of the traditional positioning algorithm. Therefore, the optimal

K

-value Wi-Fi positioning algorithm proposed has better performance.
Gene Selection and Classification of scRNA-seq Data Combining Information Gain Ratio and Genetic Algorithm with Dynamic Crossover
Authors: Feng Junhong , Niu Xishuan , Zhang Jie , Wang Jian-Hong
Published: February 2022

Single-cell RNA sequencing (scRNA-seq) is emerging as a promising technology. There exist a huge number of genes in a scRNA-seq data. However, some genes are high quality genes, and some are noises and irrelevant genes because of unspecific technology reasons. These noises and irrelevant genes may have a strong influence on downstream data analyses, such as a cell classification, gene function analysis, and cancer biomarker detection. Therefore, it is very significant to obviate these irrelevant genes and choose high quality genes by gene selection methods. In this study, a novel gene selection and classification method is presented by combining the information gain ratio and the genetic algorithm with dynamic crossover (abbreviated as IGRDCGA). The information gain ratio (IGR) is employed to eliminate irrelevant genes roughly and obtain a preliminary gene subset, and then the genetic algorithm with a dynamic crossover (DCGA) is utilized to choose high quality genes finely from the preliminary gene subset. The main difference between the IGRDCGA and the existing methods is that the DCGA and IGR are integrated first and used to select genes from scRNA-seq data. We conduct the IGRDCGA and several competing methods on some real-world scRNA-seq datasets. The obtained results demonstrate that the IGRDCGA can choose high quality genes effectively and efficiently and outperforms the other several competing methods in terms of both the dimensionality reduction and the classification accuracy.
Differential Evolution Algorithm Combined with Uncertainty Handling Techniques for Stochastic Reentrant Job Shop Scheduling Problem
Authors: Hu Rong , Wu Xing , Qian Bin , Mao Jianlin , Jin Huaiping
Published: February 2022

This paper considers two kinds of stochastic reentrant job shop scheduling problems (SRJSSP), i.e., the SRJSSP with the maximum tardiness criterion and the SRJSSP with the makespan criterion. Owing to the NP‐complete complexity of the considered RJSSPs, an effective differential evolutionary algorithm (DEA) combined with two uncertainty handling techniques, namely, DEA_UHT, is proposed to address these problems. Firstly, to reasonably control the computation cost, the optimal computing budget allocation technique (OCBAT) is applied for allocating limited computation budgets to assure reliable evaluation and identification for excellent solutions or individuals, and the hypothesis test technique (HTT) is added to execute a statistical comparison to reduce some unnecessary repeated evaluation. Secondly, a reentrant‐largest‐order‐value rule is designed to convert the DEA’s individual (i.e., a continuous vector) to the SRJSSP’s solution (i.e., an operation permutation). Thirdly, a conventional active decoding scheme for the job shop scheduling problem is extended to decode the solution for obtaining the criterion value. Fourthly, an Insert‐based exploitation strategy and an Interchange‐based exploration strategy are devised to enhance DEA’s exploitation ability and exploration ability, respectively. Finally, the test results and comparisons manifest the effectiveness and robustness of the proposed DEA_UHT.
A National Map of NCI-Designated Cancer Center Catchment Areas on the 50th Anniversary of the Cancer Centers Program
Authors: DelNero Peter F. , Buller Ian D. , Jones Rena R. , Tatalovich Zaria , Vanderpool Robin C. , Ciolino Henry P. , Croyle Robert T.
Published: February 2022

Background:

In 1971, the National Cancer Act created a process to recognize the leadership, facilities, and research efforts at cancer centers throughout the United States. Toward this goal, each NCI-designated cancer center defines and describes a catchment area to which they tailor specific scientific and community engagement activities.

Methods:

The geographically defined catchment areas of 63 NCI-designated comprehensive and clinical cancer centers are collated and presented visually. In addition, the NCI-designated cancer center catchment areas are geographically linked with publicly available data sources to aggregate sociodemographic and epidemiologic characteristics across the NCI Cancer Centers Program.

Results:

The national map portrays the size, shape, and locations for 63 catchment areas of the 71 NCI-designated cancer centers. The findings illustrate the geographic extent of the NCI Cancer Centers Program during the 50th anniversary of the National Cancer Act.

Conclusions:

NCI-designated cancer centers occupy a prominent role in the cancer control ecosystem and continue to perform research to address the burden of cancer among their local communities. The strength of the NCI Cancer Centers Program is partly defined by the scope, quality, and impact of community outreach and engagement activities in the catchment areas.

Impact:

The collation and geographic presentation of the distinct, but complementary, NCI-designated cancer center catchment areas are intended to support future research and community outreach activities among NCI-designated cancer centers.

See related commentary by Vadaparampil and Tiro, p. 952
PARK2 Regulates eIF4B-Driven Lymphomagenesis
Authors: Kapadia Bandish B. , Roychowdhury Anirban , Kayastha Forum , Nanaji Nahid , Gartenhaus Ronald B.
Published: February 2022

Patients with high-risk diffuse large B-cell lymphoma have poor outcomes following first-line cyclophosphamide, doxorubicin, vincristine, prednisone, and rituximab (R-CHOP); thus, treatment of this fatal disease remains an area of unmet medical need and requires identification of novel therapeutic approaches. Dysregulation of protein translation initiation has emerged as a common downstream node in several malignancies, including lymphoma. Ubiquitination, a prominent posttranslational modification associated with substrate degradation, has recently been shown to be a key modulator of nascent peptide synthesis by limiting several translational initiation factors. While a few deubiquitinases have been identified, the E3 ligase responsible for the critical ubiquitination of these translational initiation factors is still unknown. In this study, using complementary cellular models along with clinical readouts, we establish that PARK2 ubiquitinates eIF4B and consequently regulates overall protein translational activity. The formation of this interaction depends on upstream signaling, which is negatively regulated at the protein level of PARK2. Through biochemical, mutational, and genetic studies, we identified PARK2 as a mTORC1 substrate. mTORC1 phosphorylates PARK2 at Ser127, which blocks its cellular ubiquitination activity, thereby hindering its tumor suppressor effect on eIF4B's stability. This resultant increase of eIF4B protein level helps drive enhanced overall protein translation. These data support a novel paradigm in which PARK2-generated eIF4B ubiquitination serves as an anti-oncogenic intracellular inhibitor of protein translation, attenuated by mTORC1 signaling.

Implications:

Our data implicate the FASN/mTOR-PARK2-eIF4B axis as a critical driver of enhanced oncogene expression contributing to lymphomagenesis.
Opioid-Induced Leukoencephalopathies: A Report of Two Cases
Authors: Knudsen Gustav Højrup , Kermanian Nata , Kock-Jensen Carsten Hanshelge , Antulov Ronald
Published: February 2022

Acute toxic leukoencephalopathy (ATL) and delayed post-hypoxic leukoencephalopathy (DPHL) are two possible adverse entities related to opioid intoxication (OI), each having a distinct clinical course. While ATL shows a monophasic course with gradual neurological deterioration, DPHL has a distinct biphasic course. We report a case of ATL along with a case of DPHL happening in young male patients with OI, including their clinical courses as well as imaging characteristics with comparable time intervals. Initially, both leukoencephalopathies typically show magnetic resonance imaging findings with confluent and symmetric white matter (WM) abnormalities in the periventricular regions on T2 and fluid-attenuated inversion recovery images along with restricted diffusion on diffusion-weighted imaging. The DPHL patient however also presented with WM cystic substance loss in the deterioration phase, several weeks after hospital admission, which was previously described in a case of DPHL. Interestingly, similar WM changes have recently been observed in virus-associated necrotizing disseminated acute leukoencephalopathy in patients with coronavirus disease 2019 which may suggest a common pathophysiological mechanism. Knowing the distinct imaging features of ATL and DPHL along with their typical clinical courses can provide a faster and more reliable differentiation between these two entities.
Percepção dos pacientes oncológicos sobre a comunicação verbal e não verbal no recebimento de más notícias
Authors: Cruvinel Agnes Fátima Pereira , Thomas Brenda , Klaus Georgia Baldo , Silva Tatiana Gaffuri da
Published: February 2022

A má notícia consiste em toda comunicação de caráter informativo que afeta negativamente as perspectivas futuras de um indivíduo. Quando relacionada à oncologia, pode permear diferentes fases da doença a partir do próprio diagnóstico. Então, este trabalho tem como objetivo avaliar a percepção dos pacientes oncológicos sobre a comunicação verbal e não verbal no recebimento de más notícias em um hospital do oeste catarinense. Posto isto, os métodos da pesquisa baseiam-se em dados qualitativos, realizados entre dezembro de 2019 até janeiro de 2020, com 15 pacientes entre 18 e 60 anos, internados na clínica oncológica ou de quimioterapia de um hospital do oeste catarinense. A seleção dos participantes foi feita por conveniência, com o quantitativo determinado pela saturação teórica dos dados. A coleta de informações foi realizada por meio de uma entrevista narrativa, que foi transcrita e analisada pelo programa IRAMUTEQ®. O programa resultou em quatro classes nomeadas conforme as palavras de maior representatividade, e assim, foi evidenciada a preferência dos pacientes na utilização de uma linguagem clara e compreensível, sem omitir dados clínicos, levando em conta as singularidades de cada indivíduo. Além disso, percebe-se a importância da fé e espiritualidade no momento da comunicação, sendo chave do processo a abordagem centrada na pessoa.
O moderno em verde e amarelo: uma análise do conto “O Ladrão”, de Mário de Andrade
Authors: Fernandes Guilherme
Published: February 2022

O presente artigo tem por objetivo expor uma análise do conto “O Ladrão”, de Mário de Andrade, procurando dialogar com algumas idéias postuladas por teóricos como Anatol Rosenfeld e Walter Benjamin. Mas antes de nos atermos à análise, faremos algumas reflexões sobre o movimento modernista, com o intuito de expor suas causas e conseqüências no cenário artístico mundial e suas projeções dentro do panorama literário brasileiro na primeira metade do século XX, a fim de situar, nesse contexto, a relevância da obra marioandradiana e a importância do autor no movimento que se consagrou como um dos mais fecundos de nossa literatura
Vinicius de Moraes nos Livros Didáticos
Authors: De Melo Willians Calazans de Vasconcelos
Published: February 2022

O objetivo deste trabalho foi investigar aspectos da obra de Vinicius de Moraes abordados nos livros didáticos, no intuito de identificar em que medida tal abordagem contribui para se tomar conhecimento das múltiplas faces da obra do Poeta. Para isto, foram escolhidos quatro dos onze livros didáticos de língua portuguesa para Ensino Médio recomendados pelo Ministério da Educação, conforme Portaria nº 1.818, de 13 de novembro de 2006. Mediante os Parâmetros Curriculares Nacionais (2000), as Orientações Curriculares para o Ensino Médio (2006) e, principalmente, o Catálogo do Programa Nacional do Livro para o Ensino Médio (2008) realizaram-se considerações sobre o livro didático e seu papel na educação brasileira
As religiosidades em campos de refugiados e as fronteiras que criamos
Authors: Santos Josué Carlos Souza dos , Delicato Cláudio Travassos
Published: February 2022

Este artigo é um relato de campo com inserção dos pesquisadores na Turquia e Grécia. A viagem ocorreu em 2017 e os pesquisadores moraram nessas duas nações nesse período, visitando regularmente campos de refugiados e comunidades vulneráveis turcas e gregas. O relato foca em também apontamentos sobre religiosidades dentro de campos de refugiados na Europa através das notas de campo e narrativas aliadas ao estudo qualitativo, inserindo-se no âmbito de estudos do mestrado profissional em Segurança Pública, Direitos Humanos e Cidadania da Universidade Estadual de Roraima.
Sublingual Nitroglycerin Administration to Relieve Radial Artery Vasospasm and Retrieve Wedged Catheter: A Consideration in Neuroangiography
Authors: Akhter Asad S. , Gumina Richard , Nimjee Shahid
Published: February 2022

Background

Radial artery spasm is a common hinderance during transradial approaches for neuroangiography. Ways of alleviation have been described, including patient sedation, local lidocaine, or even prophylactic administration of intra‐arterial vasodilators.

Methods

We present a case of a wedged catheter attributable to radial artery spasm, which failed all conventional methods to relieve spasm.

Results

The catheter was ultimately removed after administration of sublingual nitroglycerin.

Conclusion

To our knowledge, this is the first time sublingual nitrogen has been reported as an effective means to alleviate radial artery spasm during a transradial approach for neuroangiography.
The imposter phenomenon in the work context: the role of motivation and perfectionism
Authors: Sheveleva Marina S. , Zolotareva Alena A. , Rudnova Natalia A.
Published: February 2022

Background. Th e impostor phenomenon is the term used to describe high-performing individuals who fail to internalize their success in spite of their high achievements and experience constant fear that they will be found as frauds by their peers. Th e close links between the impostor phenomenon, perfectionism and professional motivation are oft en referred to, though no empirical studies of the nature of these links have been conducted. Objective. Th e objective of this research is to study motivation and perfectionism as potential predictors of the impostor phenomenon in the work context. Design. 320 working Russian respondents took part in this cross-sectional study. Th ey fi lled out the questionnaire containing three scales: Th e Clance Impostor Phenomenon Scale, Th e Short Almost Perfect Scale (R. Slaney), Th e Scale of Professional Motivation (E. Osin, T. Ivanova, T. Gordeeva). Results. Th e results of the multiple regression analysis indicate that maladaptive perfectionism and professional amotivation could be regarded as positive predictors of the impostor phenomenon in working Russian adults. Conclusion. Th e results of the current study could be used in diagnostics and counselling of employees with maladaptive perfectionism and professional amotivation. Preventive measures aimed at adjusting employees’ attitudes to their professional obligations could prevent not only the development of the impostor phenomenon but a range of the related negative psychological and organizational outcomes.
Phylogenetic status of some unique species representing Blapstinina Mulsant & Rey (Tenebrionidae: Blaptinae: Opatrini), and implications for continued study of the subtribe
Authors: KAMIŃSKI MARCIN JAN , LUMEN RYAN , KANDA KOJUN , SMITH AARON DENNIS
Published: February 2022

Blapstinus Dejean is the most taxonomically challenging genus within Blapstinina Mulsant & Rey (Tenebrionidae: Opatrini). With over 120 species, it is widely distributed throughout the Americas, with representatives reaching Canada on the northern range edge, and Argentina, Chile, and Uruguay in the south. Traditionally, Blapstinus has been distinguished from other blapstinoid beetles via well-developed metathoracic wings and their lack of synapomorphies present in other genera; however, fused and tapering aedeagal parameres were recently introduced as a potential autapomorphy for the genus. This study used molecular data (nuclear ribosomal 28S, cytochrome oxidase subunit II (COII), arginine kinase (ArgK), carbomyl-phosphate synthetase domain of rudimentary (CAD), and wingless (wg)) to investigate the phylogenetic placement and taxonomic status of three Blapstinus species with distinct male genitalic morphology, i.e. Blapstinus tibialis Champion (USA), B. grandis Champion (Mexico, Nicaragua), and B. punctulatus Solier (Argentina, Bolivia, Brazil, Chile, Uruguay). Analyses highlight the phylogenetic informativeness of the aedeagal morphology within the subtribe, and support an urgent need for taxonomic studies of South American taxa. Blapstinus tibialis and B. grandis were recovered as a specific lineage within Blapstinus that can be easily distinguished from remaining congeners by having tridentate parameres. A lectotype for B. grandis is designated to fix the taxonomic status of this species. Blapstinus punctulatus was recovered outside of its current genus which, along with aedeagal morphology, supports a change of status of the species. As a result, the following synonymy and combinations are introduced: Lodinus Mulsant and Rey stat. restit. (=Austrocaribius Marcuzzi syn. nov.), Lodinus araguae (Marcuzzi) comb. et stat. nov., L. punctulatus comb. nov., L. venezuelensis (Marcuzzi) comb. nov. Lectotypes for Lodinus nigroaeneus Mulsant and Rey, L. araguae, and L. punctulatus are designated to fix the taxonomic status of these species.
A new species of the family Derbidae (Hemiptera: Auchenorrhyncha: Fulgoroidea) from Jeju Island, South Korea
Authors: PARK JAEKOOK , JUNG SUNGHOON
Published: February 2022

A new species of the family Derbidae (Hemiptera: Auchenorrhyncha: Fulgoroidea), Kamendaka jejuensis sp. n. is described from the Jeju Island, South Korea. Morphological information is provided based on male and female specimens. A key to the species of Korean Kamendaka is also presented.
Northern Hemisphere Winter Blocking: Differing Onset Mechanisms across Regions
Authors: Miller Douglas E. , Wang Zhuo
Published: February 2022

Atmospheric blocking is a prolific producer of extreme weather with significant socioeconomic impacts. Different physical mechanisms for blocking onset have been proposed and are generally focused on two sectors: the Eurasian and the North Pacific. Here, we objectively separate blocking into four regions and investigate how the blocking onset mechanisms vary from one region to another, focusing on three factors: scale interactions between three frequency bands, Rossby wave breaking (RWB), and diabatic heating. Atlantic blocks are dominated by the low-frequency flow evolution that resembles the negative phase of the North Atlantic Oscillation and are influenced by cyclonic RWB toward the western edge of the anticyclone. Europe blocks are influenced by high-frequency, traveling waves across the Atlantic Ocean and develop rapidly, mainly attributed to strong anticyclonic RWB and interaction between high- and intermediate-frequency flow components. Asian blocks are fixated within a stationary wave train that spans upstream to the western Atlantic Ocean and do not have strong potential vorticity or RWB features. The Pacific blocks are mainly influenced by an intermediate-frequency retrograding wave train, while a low-frequency component resembling the Pacific–North American pattern is evident. The Pacific blocks also contain precursor signals in the stratosphere. Backward trajectory analysis revealed that 35%–45% of parcels initialized within the Atlantic, Europe, and Pacific blocking anticyclones experience heating and ascent, while adiabatic processes dominate Asian blocking. Overall, our analysis demonstrates the importance of decomposing the flow into three frequency bands and illustrates different blocking onset mechanisms over four sectors.
Temporal and Spatial Variability in Contemporary Greenland Warming (1958–2020)
Authors: Zhang Qinglin , Huai Baojuan , van den Broeke Michiel R. , Cappelen John , Ding Minghu , Wang Yetang , Sun Weijun
Published: February 2022

In this study, 2-m or near-surface air temperature (T2m) products from atmospheric reanalysis ERA5 and the regional climate model RACMO2.3p2 over Greenland are compared with observations from staffed stations and Automated Weather Stations (AWS). The results show the following: 1) Greenland experienced decadal periods of both cooling and warming during 1958–2020, with an inflection point around the mid-1990s, and no significant warming after ∼2005 except in the north and northeast. 2) In the full time series, the magnitude of the warming increases gradually from south to north, with peak warming found along the northeastern coast. 3) The most intense warming occurred in autumn and winter, notably in the northeast. 4) The correlations of T2m with the large-scale circulation indices NAO and GBI are highly significant, but they gradually weaken from southwestern to northeastern Greenland. Under the background of Greenland rapidly warming, the shift from positive to negative NAO (negative to positive GBI) is critical to the sudden warming in Greenland since the mid-1990s.
Mechanisms of Regional Arctic Sea Ice Predictability in Two Dynamical Seasonal Forecast Systems
Authors: Bushuk Mitchell , Zhang Yongfei , Winton Michael , Hurlin Bill , Delworth Thomas , Lu Feiyu , Jia Liwei , Zhang Liping , Cooke William , Harrison Matthew , Johnson Nathaniel C. , Kapnick Sarah , McHugh Colleen , Murakami Hiroyuki , Rosati Anthony , Tseng Kai-Chih , Wittenberg Andrew T. , Yang Xiaosong , Zeng Fanrong
Published: February 2022

Research over the past decade has demonstrated that dynamical forecast systems can skillfully predict pan-Arctic sea ice extent (SIE) on the seasonal time scale; however, there have been fewer assessments of prediction skill on user-relevant spatial scales. In this work, we evaluate regional Arctic SIE predictions made with the Forecast-Oriented Low Ocean Resolution (FLOR) and Seamless System for Prediction and Earth System Research (SPEAR_MED) dynamical seasonal forecast systems developed at the NOAA/Geophysical Fluid Dynamics Laboratory. Compared to FLOR, we find that the recently developed SPEAR_MED system displays improved skill in predicting regional detrended SIE anomalies, partially owing to improvements in sea ice concentration (SIC) and thickness (SIT) initial conditions. In both systems, winter SIE is skillfully predicted up to 11 months in advance, whereas summer minimum SIE predictions are limited by the Arctic spring predictability barrier, with typical skill horizons of roughly 4 months. We construct a parsimonious set of simple statistical prediction models to investigate the mechanisms of sea ice predictability in these systems. Three distinct predictability regimes are identified: a summer regime dominated by SIE and SIT anomaly persistence; a winter regime dominated by SIE and upper-ocean heat content (uOHC) anomaly persistence; and a combined regime in the Chukchi Sea, characterized by a trade-off between uOHC-based and SIT-based predictability that occurs as the sea ice edge position evolves seasonally. The combination of regional SIE, SIT, and uOHC predictors is able to reproduce the SIE skill of the dynamical models in nearly all regions, suggesting that these statistical predictors provide a stringent skill benchmark for assessing seasonal sea ice prediction systems.
Chaotic Variability of the Atlantic Meridional Overturning Circulation at Subannual Time Scales
Authors: Germe Agathe , Hirschi Joël J.-M. , Blaker Adam T. , Sinha Bablu
Published: February 2022

This study describes the intra- to interannual variability of the Atlantic meridional overturning circulation (AMOC) and the relative dynamical contributions to the total variability in an eddy-resolving 1/12° resolution ocean model. Based on a 53-yr-long hindcast and two 4-yr-long ensembles, we assess the total AMOC variability as well as the variability arising from small differences in the ocean initial state that rapidly imprints on the mesoscale eddy fields and subsequently on large-scale features. This initial-condition-dependent variability will henceforth be referred to as “chaotic” variability. We find that intra-annual AMOC fluctuations are mainly driven by the atmospheric forcing, with the chaotic variability fraction never exceeding 26% of the total variance in the whole meridional Atlantic domain. To understand the nature of the chaotic variability we decompose the AMOC (into its Ekman, geostrophic, barotropic, and residual components). The barotropic and geostrophic AMOC contributions exhibit strong, partly compensating fluctuations, which are linked to chaotic spatial variations of currents over topography. In the North Atlantic, the largest chaotic divergence of ensemble members is found around 24°, 38°, and 64°N. At 26.5°N, where the AMOC is monitored by the RAPID–MOCHA array, the chaotic fraction of the AMOC variability is 10%. This fraction is slightly overestimated with the reconstruction methodology as used in the observations (∼15%). This higher fraction of chaotic variability is due to the barotropic contribution not being completely captured by the monitoring system. We look at the strong AMOC decline observed in 2009/10 and find that the ensemble spread (our measure for chaotic variability) was not particularly large during this event.

Significance Statement

The ocean is characterized by ubiquitous swirls (eddies) with diameters ranging from more than 100 km (low latitudes) to a few tens of kilometers (high latitudes). There is limited predictability of the timing and location of such eddies. They introduce unpredictable (“chaotic”) variability, which affects the ocean circulation on a wide range of spatial and temporal scales. Any observations of ocean currents contain a fraction of chaotic variability. However, it is, in general, not possible to quantify this chaotic variability from observations. Here we use a set of simulations performed with a state-of-the-art ocean computer model to estimate the fraction of chaotic variability in the amount of warm northward flowing near-surface seawater that delivers large amounts of heat to the North Atlantic, known to scientists as the Atlantic meridional overturning circulation (AMOC). We find that about 10%–25% of the AMOC variance is likely to be chaotic.