bluuebunny/crossref_metadata_2025_split huggingface dataset:
OEMAH MATEMATIKA: PENDAMPINGAN PEMBELAJARAN MATEMATIKA BERBASIS ETNOMATEMATIKA UNTUK ANAK-ANAK DI KELURAHAN YOSOREJO
Authors: Mustika Juitaning 
Published: March 2022

Matematika masih menjadi momok yang menakutkan bagi siswa. Pembelajaran matematika seolah terpisah dari kehidupan sehari-hari siswa. Di masa pandemi covid-19, pembelajaran matematika melalui kelas online atau hanya menggunakan platform pembelajaran tertentu, sehingga banyak siswa yang mengeluhkan sulitnya pembelajaran matematika. Siswa semakin kesulitan untuk memahami konsep matematika apalagi mengintegrasikan pemaknaan matematika yang dekat dengan lingkungan sekitarnya. Untuk itu, pendampingan ini dilakukan tim pengabdian beserta oemah belajar matematika untuk membantu anak-anak dalam pembelajaran matematika berbasis etnomatematika. Siswa mengenal dan belajar matematika dari permasalahan kontekstual dan realistis budaya Lampung seperti kain tapis, dan tarian tradisional. Metode pengabdian menggunakan penelitian participatory action research (PAR). Berdasarkan hasil kegiatan pendampingan anak-anak di Rt 021 Rt 023 dan Rt 023a di kelurahan yosorejo dapat diketahui bahwa siswa memiliki respon positif dalam pembelajaran matematika berbasis budaya
BASIC ENGLISH FOR TOURISM BAGI SISWA/I SMK PGRI I LIMAU TANGGAMUS LAMPUNG
Authors: Dina Amelia 
Published: March 2022

Industri pariwisata Indonesia telah memberikan dampak ke berbagai sektor, termasuk sektor industri perhotelan dan pendidikan. Menghadapi globalisasi dan era revolusi industri 4.0, jumlah wisatawan mancanegara semakin memengaruhi jumlah pertumbuhan hotel. Oleh karena itu, dibutuhkan sumber daya manusia yang mumpuni dalam bidang perhotelan. Hal ini mendorong dibukanya jurusan khusus kepariwisataan dan perhotelan di level universitas dan Sekolah Menengah Kejuruan (SMK). Salah satu SMK yang memiliki jurusan perhotelan adalah SMK PGRI I Limau. Siswa di SMK tersebut menghadapi berbagai tantangan dalam belajar bahasa Inggris.Tim PkM UTI memberikan solusi dengan menyelenggarakan kegiatan pelatihan untuk melatih skill berbahasa Inggris para siswa. Tim PkM UTI menggunakan games dan movies untuk menambah minat dan motivasi belajar siswa dalam belajar mengenai English for Tourism.Berdasarkan hasil dari observasi, pre-test, dan post-test kegiatan tersebut, siswa SMK PGRI I Limau mengalami peningkatan yang memuaskan. Mereka yang sebelumnya memiliki motivasi rendah dalam belajar bahasa Inggris menjadi lebih antusias. Nilai yang diperoleh siswa ketika pre-test juga mengalami peningkatan pada saat post-test sehingga menegaskan bahwa metode yang digunakan dalam kegiatan PkM sekolah binaan ini efektif dan tepat guna. Kata Kunci: English for Tourism, games, movies, pariwisata, perhotelan
Evaluation of Ankle Fractures in 228 Patients From a Single Center Using Three-Dimensional Computed Tomography Mapping
Authors: Zeng Jianshuang , Xu Cheng , Xu Gaoxiang , Zhang Wupeng , Wang Daofeng , Li Hua , Gan Xuewen , Xiong Ying , Li Jiantao , Zhang Licheng , Tang Peifu 
Published: March 2022

Purpose: The ankle joint has a complex anatomy structure with many causative factors and various injury mechanisms, and the clinical presentation of ankle fractures is diverse. This study aimed to analyze the characteristics of ankle fractures by applicating three-dimensional fracture line mapping technique.Methods: A retrospective study was conducted on 228 patients with ankle fractures. Three-dimensional reconstruction was performed by CT images and the fracture reconstruction model was superimposed onto a standard model of the tibiofibula for fracture line drawing. Then the fracture lines were converted into a three-dimensional coordinate point data set. And the fracture line maps as well as the fracture line heat maps were generated in 3-Matic software and Unigraphics NX software, respectively.Results: The dense area of the fibular fracture lines was located above the tibiofibular joint ligament and wrapped obliquely around the distal fibula from the anterior edge of the fibular neck. The fibular fracture line could be divided into three categories according to the degree of denseness. The dense area of the tibial fracture line is located within the anterior tibial fornix, the anterolateral corner, and the fibular notch. The tibial fracture lines can be classified into four categories according to the density of the fracture lines. The combined medial malleolus + posterior malleolar fracture line situation was found to be not encompassed by the existing AO and Lauge-Hansen (LH) classification systems according to this classification.Conclusion: The 3D fracture line mapping technique can better reflect the distribution of ankle fracture lines and could help to establish a new ankle fracture typing system in the future.
The Biodegradability and in Vitro Cytological Study on the Composite of PLGA Combined With Magnesium Metal
Authors: Wang Xue , Sun Hui , Song Mang , Yan Guangqi , Wang Qiang 
Published: March 2022

The main goal of this study was to develop a novel poly (lactic-co-glycolic acid) (PLGA) composite biodegradable material with magnesium (Mg) metal to overcome the acidic degradation of PLGA and to investigate the cytocompatibility and osteogenesis of the novel material. PLGA composites with 5 and 10 wt% Mg were prepared. The samples were initially cut into 10 mm × 10 mm films, which were used to detect the pH value to evaluate the self-neutralized ability. Murine embryo osteoblast precursor (MC3T3-E1) cells were used for in vitro experiments to evaluate the cytotoxicity, apoptosis, adhesion, and osteogenic differentiation effect of the composite biodegradable material. pH monitoring showed that the average value of PLGA with 10 wt% Mg group was closer to the normal physiological environment than that of other groups. Cell proliferation and adhesion assays indicated no significant difference between the groups, and all the samples showed no toxicity to cells. As for cell apoptosis detection, the rate of early apoptotic cells was proportional to the ratio of Mg. However, the ratios of the experimental groups were lower than those of the control group. Alkaline phosphatase activity staining demonstrated that PLGA with 10 wt% Mg could effectively improve the osteogenic differentiation of MC3T3-E1 cells. In summary, PLGA with 10 wt% Mg possessed effective osteogenic properties and cytocompatibility and therefore could provide a wide range of applications in bone defect repair and scaffold-based tissue engineering in clinical practice.
Site Logistics Factors Impacting Resource Use on Construction Sites: A Delphi Study
Authors: Dixit Manish Kumar , Venkatraj Varusha , Pariafsai Fatemeh , Bullen Jason 
Published: March 2022

Over 48% of the world’s energy is consumed by buildings in their construction and operation alone, which add to over 39% of global carbon emissions. In addition, the building sector generates over 569 million tons of waste every year within just the United States. Reducing the environmental impacts and construction waste generated by buildings has, therefore, become a concerning global issue. Very few studies have addressed how site logistics planning may impact construction resource use on a site and how it may affect a project’s embodied energy. Site logistics plans control the sequencing of labor, materials, and equipment. Inefficient plans may lead to rework, material damage, and waste generation, requiring additional materials to complete the same task, which eventually increases the embodied energy of a project. In this study, we investigated, identified, and ranked site logistics-related factors that may affect the amount of resources used in a construction project. The Delphi Method is applied to determine, verify, and rank these factors to help improve existing methods of site logistics planning from an embodied energy perspective. Results show that the installer’s skill, technology/equipment, prefabrication, planning and forecasting, and material movement are among the top influential site logistics-related factors that may help reduce construction waste. Considering these factors while developing the site logistics plan will help lower the energy and carbon footprint of a construction project.
Eliminating Stubborn Insulated Deposition by Coordination Effect to Boost Zn Electrode Reversibility in Aqueous Electrolyte
Authors: Jiang Yuzhuo , Xia Xinyao , Qian Siyi , Zhang Jing , Zhou Pinxin , Gu Xuefang , Tian Shu , Qian Yijun , Ji Haoqing , Liu Jie , Qian Tao 
Published: March 2022

Aqueous rechargeable zinc-ion batteries (ZIBs) have recently shined in energy storage and transmission, which are due to high safety and low cost. However, the extremely stubborn by-products in the Zn anode severely inhibited the Zn2+ adsorption/desorption and exacerbated the dendrite formation. Herein, we report a facile strategy to eliminate inert Zn4(OH)6SO4·xH2O for the improvement of ZIBs according to the coordination effect by employing ethylenediaminetetraacetic acid-diamine (EDTA-2Na) as a coordination additive in traditional electrolyte. Zn2+ is coordinated with the carboxyl group of the four acetyl carboxyl groups and the N in C–N bonds, forming a new chelating structure, and thus stubborn deposition will be dissolved in the electrolyte. As a result, the discharge capacity of 102 mAh g−1 in the ZnSO4/Li2SO4 with EDTA-2Na electrolyte at a current density of 4 C and a stable cycle life with a capacity of 90.3% after 150 cycles are achieved. It has been concluded that the coordination effect strategy provides a valuable idea for solving the defects of ZIBs.
Pre-Transplant Platelet Refractoriness and Alternative Donors Are Associated With Cytomegalovirus Retinitis in Hematopoietic Stem Cell Transplantation for Severe Aplastic Anemia
Authors: Zhang Yuehong , Liang Yuqin , Zhang Xu , Wang Shunqing , Cao Jinpeng , Gao Zongyin , Li Ling , Mo Wenjian 
Published: March 2022

BackgroundCytomegalovirus retinitis is a severe, vision-threatening opportunistic infection in an immunodeficient population. Reports on cytomegalovirus retinitis in hematopoietic stem cell transplant recipients due to severe aplastic anemia have been scant. This study assessed the risk of cytomegalovirus retinitis in relation to the pre-transplant status of severe aplastic anemia patients.MethodsWe conducted a retrospective nested case-control study of cytomegalovirus retinitis among severe aplastic anemia patients receiving allogeneic hematopoietic stem cell transplants in a tertiary care institution that attends severe aplastic anemia patients from southern China from January 1, 2013 to December 31, 2018. Each cytomegalovirus retinitis case was matched with four controls without cytomegalovirus retinitis by age and gender. Thirteen pre-transplant parameters were chosen to compare the risk factor levels between the cases and controls. Multivariable logistic regressions were used to estimate the odds ratios (ORs) and 95% confidence intervals (CIs).ResultsA total of 361 severe aplastic anemia patients received hematopoietic stem cell transplants in the study period 2013–2018 in our medical institution, and 31 (8.58%) developed cytomegalovirus retinitis. Cytomegalovirus retinitis was diagnosed in the median of 148 days after transplantation. We confirmed platelet refractoriness more frequently in cases than in controls (p = 0.0005). Compared with human leukocyte antigen-matched sibling donors, alternative donors were significantly more prone to cytomegalovirus retinitis (p = 0.0009). After stepwise selection in multivariate logistic regression, platelet refractoriness (OR 5.41, 95% CI 1.98–15.39), haploidentical donor (OR 7.46, 95% CI 2.19–34.87), and unrelated donor (OR 8.38, 95% CI 2.30–41.34) were associated with an increased risk of cytomegalovirus retinitis.ConclusionsPre-transplant platelet refractoriness and alternative donors were significant predictors of cytomegalovirus retinitis in severe aplastic anemia recipients. These results highlight the importance of accounting for existing risks while developing prevention strategies and preemptive treatment for severe aplastic anemia recipients. We recommend that the platelet count be closely monitored and thrombopoietin be properly applied during the period when cytomegalovirus retinitis is prone to occur.
Fate of Methane Released From a Destroyed Oil Platform in the Gulf of Mexico
Authors: Silva Mauricio , Roa Camilo , Ali Nizar Bel Haj , O’Reilly Carrie , Abichou Tarek , MacDonald Ian R. 
Published: March 2022

In 2004, destruction of a Gulf of Mexico oil platform by Hurricane Ivan initiated a discharge of oil and gas from a water depth of 135 m, where its bundle of well conductors was broken below the seafloor near the toppled wreckage. Discharge continued largely unabated until 2019, when findings partly reported herein prompted installation of a containment device that could trap oil before it entered the water column. In 2018, prior to containment, oil and gas bubbles formed plumes that rose to the surface, which were quantified by acoustic survey, visual inspection, and discrete collections in the water column. Continuous air sampling with a cavity ring-down spectrometer (CRDS) over the release site detected atmospheric methane concentrations as high as 11.7, ∼6 times greater than an ambient baseline of 1.95 ppmv. An inverse plume model, calibrated to tracer-gas release, estimated emission into the atmosphere of 9 g/s. In 2021, the containment system allowed gas to escape into the water at 120 m depth after passing through a separator that diverted oil into storage tanks. The CRDS detected transient peaks of methane as high as 15.9 ppmv ppm while oil was being recovered to a ship from underwater storage tanks. Atmospheric methane concentrations were elevated 1–2 ppmv over baseline when the ship was stationary within the surfacing plumes of gas after oil was removed from the flow. Oil rising to the surface was a greater source of methane to the atmosphere than associated gas bubbles.
Case Report: Occurrence of Thyroid Storm in a Young Patient With Recurrent Diabetic Ketoacidosis
Authors: Iino Tatsuya , Akatsuka Masayuki , Yamamoto Shuji 
Published: March 2022

BackgroundThyroid storm (TS) is a fatal disease that leads to multiple organ failure and requires prompt diagnosis. Diabetic ketoacidosis (DKA) is a trigger for thyroid crisis. However, TS and DKA rarely occur simultaneously. Moreover, owing to the rarity of the co-occurrence, the clinical course remains unclear. In this study, we present a case of TS that developed during the follow-up for repeated DKA in a young patient.Case PresentationA 25-year-old man with a history of recurrent DKA was brought to the emergency room frequently with similar symptoms. DKA treatment was initiated, but his tachycardia and disturbance of consciousness did not improve. Further examination of the patient revealed a Burch–Wartofsky Point Scale score of 80 points, consistent with the Japan Thyroid Association criteria. Therefore, DKA coexisting with TS was diagnosed. Antithyroid medication, inorganic iodine, and corticosteroids were then started as treatment for TS, and β-blockers were administered to manage tachycardia. With these treatments, the patient’s health improved and he recovered.ConclusionsIn severe cases of recurrent DKA, the presence of TS should be considered, and early treatment should be initiated before the patient’s condition worsens.
Observation of Clinicopathologic Features of Pituitary Adenoma With Neuronal Differentiation
Authors: Zheng Limei , Yan Xiaorong , Hu Chengcong , Zhang Peng , Chen Yupeng , Zheng Qiaoyan , Hu Liwen , Wang Mi , Li Guoping , Wu Ping , Jiang Changzhen , Tian Jing , Zhang Sheng , Wang Xingfu 
Published: March 2022

ObjectiveTo investigate the clinicopathologic features of pituitary adenoma with neuronal differentiation.MethodsFour patients with mixed gangliocytoma-pituitary adenomas between January 2011 and January 2021 and 111 new-onset patients with adenomas between January 2019 and June 2021 who attended the First Affiliated Hospital of Fujian Medical University were included in the study. The histological and immunohistochemical findings were analyzed. Neuronal differentiation marker staining was performed on new-onset adenomas, and the related literature was reviewed.ResultsAltogether, more than 100 mixed gangliocytoma-pituitary adenoma cases have been reported in the literature until now, of which pituitary-specific POU-class homeodomain transcription 1 (PIT1) positive adenomas are more frequently observed. In the present study, all 4 patients we described were female, aged 29 to 53 years (mean 39 years). Clinically, 3/4 patients presented with acromegaly, and 1/2 patients presented with headache. Histologically, the tumor was composed of two distinct mixed components. The one was a population of neoplastic ganglionic cells with large nuclei, prominent nucleoli, and abundant basophilic cytoplasm embedded in a fibrillary background. Stains of chromograninA (CgA), synaptophysin (Syn), Calretinin (CR) were positive. Axotomy-like expression was observed in neurofilament (NF) staining. PIT1 was expressed in partial ganglionic cells in all cases. The other component was a population of small uniform cells with round nuclei and acidophilic cytoplasm. Prolactin (PRL) and growth hormone (GH) were positive in all 4 cases. PIT1 was positive in the nuclei of adenomas. Although adenomas and ganglionic regions varied in histology, there was a population of cells with neuronal differentiation expressing PIT1. Additionally, axotomy-like expression of NF staining could be seen in a distant area of adenoma regions. A total of 111 cases of adenomas without ganglionic cells were included in this study, including 7 cases with neuronal differentiation. Among them, 4 cases were prolactinomas, 2 cases were somatotroph adenomas, and 1 case was corticotroph adenoma. 6/7 cases were PIT1-positive adenomas. And the remaining one case is T-PIT-positive adenoma.ConclusionsMixed gangliocytoma-pituitary adenomas are rare tumors with neuronal differentiation. The majority of MGAs are associated with endocrinopathies, mainly acromegaly. Our results suggest that PIT1-positive pituitary adenomas may have neural differentiation potential, which may not be unusual. This indication supports the possibility that the neuronal transdifferentiation of adenomatous cells is a possible mechanism, and the underlying mechanism requires further elucidation.
Active Flow Control Based Bleed in an Axial Compressor Cascade Using Large Eddy Simulation
Authors: Gong Yun , Chen Shaowen , Zeng Cong , Wang Songtao 
Published: March 2022

The performance of the compressor is of great importance in developing advanced engine technology, and it dramatically influences the cycle efficiency and safety of the engine. The compressor bleed requires a part of the main flow extraction from the passage, and the removal of the airflow plays an essential role in the performance of the compressor. The influence of the constant suction and pulsed suction on the flow structures and the aerodynamic performance in a compressor cascade, and the control mechanisms are numerically studied using large eddy simulation. At a suction mass flow rate of 0.25% of the main flow rate, constant suction leads to a 9.36% reduction in Cpt, while pulsed suction gains 24% more benefit in Cpt reduction on the basis of the constant suction with an excitation frequency of 100 Hz. It indicates that the pulsed suction has more significant potential to control the loss generation in the compressor. Afterward, the flow field of the baseline, constant suction, and pulsed suction are compared to find out the flow control mechanisms of the constant suction and pulsed suction. Two different formation mechanisms of the passage vortex are found due to the excitation effect of the pulsed suction. Besides, the results of proper orthogonal decomposition and dynamic mode decomposition show that the pulsed suction can simplify and stabilize the compressor flow field, which could lead to a further benefit in Cpt.
Assessment of Functioning in Older Adults Hospitalized in Long-Term Care in Portugal: Analysis of a Big Data
Authors: Ramos Ana , Fonseca César , Pinho Lara , Lopes Manuel , Brites Rui , Henriques Adriana 
Published: March 2022

BackgroundFunctioning assessment is a key tool for health professionals to characterize the person's degree of dependence and plan care.ObjectivesThe objectives were: (1) know the functioning components of older adults hospitalized in the National Network of Continuous Integrated Health Care (NNCIHC) in Portugal; and (2) compare the conceptual frameworks used in this network with the International Classification of Functioning, Disability and Health (ICF).MethodsA longitudinal retrospective study is made with 171,414 individuals aged 65 years and over. The Principal Components Analysis (PCA) was realized to reduce the number of variables, previously suggested by a scoping review, about the concepts that characterize the functionality. Then, a consensus meeting was held, where the items were matched with the ICF.ResultsThe average age of the sample is 80.17 years old (SD = 7.383), predominantly female (59%), without a spouse (54%), and with &lt;6 years of education (56.4%). Four concepts were grouped: mobility, life daily activities, instrumental activities, and cognitive status that demonstrated good internal consistency. Most items correspond to ICF, except for the item “taking medication.”ConclusionTheoretical and conceptual similarities support the use of instruments based on the ICF in Portugal's healthcare network. We suggest that ICF also encompasses a specific dimension related to medication management, given its importance for people's health.
The Effect of Relaxation Therapy on Hypoxia During Intravenous Propofol Anesthesia in Patients With Pre-operative Anxiety: A Prospective Randomized Controlled Trial
Authors: Fang Yiling , Jing Qi , Cao Silu , Sun Xiaoru , Zhang Hui , Tian Li , Li Cheng 
Published: March 2022

BackgroundThis study aimed to investigate the effect of relaxation therapy on hypoxia during intravenous propofol anesthesia in patients with pre-operative anxiety.MethodsTwo-hundred and eighty patients were randomly categorized in the experimental group (relaxation therapy group) and control group. The Spielberger State-Trait Anxiety Inventory (S-STAI) was administered 30 to 60 min pre-operatively to assess the patient's current anxiety status and select appropriate patients. Patients in the experimental group received pre-surgical relaxation therapy. Decrease in oxygen saturation during the procedure was recorded for each patient group, and the relevant data were compared between the two groups.ResultsThe basic S-STAI scores of the experimental and control groups were 56.88 ± 2.91 and 57.27 ± 3.56, respectively (p = 0.331). The difference was not statistically significant. The incidence of hypoxia in the experimental group during painless artificial abortion [routine blood oxygen saturation (SpO2) &lt;95%, duration &gt;15 s] decreased from 30 to 12.3%.ConclusionRelaxation therapy may effectively reduce the incidence of hypoxia during painless artificial abortion by using less dose of propofol. It may help patients relieve their anxiety and improve perioperative safety.Trial RegistrationChinese Clinical Trial Registry (ChiCTR2000032109).