bluuebunny/crossref_metadata_2025_split huggingface dataset:
External Validation of an Invasive Bacterial Infection Score for Young Febrile Infants
Authors: Tsai Stacy J. , Ramgopal Sriram 
Published: March 2021

OBJECTIVES:The Aronson rule is a point-based clinical decision rule for the identification of febrile infants ≤60 days of age at low risk of invasive bacterial infection (IBI) in the emergency department. This rule uses variables of temperature, age, urinalysis, and absolute neutrophil count. We sought to externally validate this decision rule.METHODS:We conducted a secondary analysis of a multicenter prospective cohort of febrile infants ≤60 days old presenting to the emergency department between December 2008 and May 2013. Infants were excluded if they had clinical sepsis or chronic conditions or were missing any laboratory components of the Aronson score. Our outcome was IBI (bacteremia and/or bacterial meningitis). We assessed the accuracy of the Aronson rule by reporting metrics of diagnostic accuracy with 95% confidence intervals (CIs) at different point thresholds.RESULTS:Of 4130 included patients (780 &lt;21 days of age; 2362 boys), 87 (2.1%) had an IBI, including 65 with isolated bacteremia and 22 with meningitis. Using an Aronson cutoff score of 2 resulted in a sensitivity of 93.1% (95% CI 85.6%–97.4%), specificity of 26.6% (95% CI 25.3%–28.0%), and negative predictive value of 99.4% (95% CI 98.8%–99.8%). Six patients with IBI (3 with bacterial meningitis) were misclassified as low risk when using a threshold of 2.CONCLUSIONS:The Aronson rule demonstrates metrics of diagnostic accuracy that are comparable to the derivation study. Our findings suggest that the rule may be generalizable for the risk stratification of well-appearing febrile infants.
Analysis of shear behavior between old concrete and fiber concrete
Authors: Vavruš Martin , Koteš Peter , Bahleda František , Jošt Jozef 
Published: March 2021

AbstractConcrete structures that are influenced by degradation, overloading, the thawing, and freezing cycles, corrosion of reinforced bars, should be repaired or strengthened. Each of the mentioned influences lead to decreased load-carrying capacity of the structure or its member. Exceeding the load-carrying capacity leads to mechanical damage of members or excessive deformation. The damaged member has to be strengthened to the required level of reliability and load-carrying capacity. There exist many types and methods of strengthening the columns. This research work deals with strengthening of columns by concreting a new layer of fiber concrete. When applying that type of strengthening, it is necessary to assure the contact between the old layer and the new one. The paper deals with analysis of different types of contacts and determination of their parametric values.
Sobre el género Amorphophallus Blume ex Decne(Araceae) en Cuba
Authors: Sivilla Roeris González , Santos Isidro Eduardo Méndez 
Published: March 2021

Contexto: La presencia en distintas ciudades cubanas de plantas de Amorphophallus Blume ex Decne (Araceae), de cuyo cultivo en el país se encontraron escasas y poco explícitas evidencias en la literatura científica, motivó un estudio desde el punto de vista sistemático, fitogeográfico y etnobotánico.
Objetivo: Develar la nomenclatura, taxonomía, caracterización fenotípica, diferencias con taxones afines, distribución y utilidad de los representantes de Amorphophallus Blume ex Decne cultivados actualmente en Cuba, fuera de colecciones científicas.
Métodos: Especímenes mantenidos en jardines de la ciudad de Camagüey fueron estudiados mediante la utilización de métodos como el trabajo con colecciones, la comparación con descriptores y claves, así como la descripción e ilustración científica.
Resultados: Se confirma la presencia en Cuba del género Amorphophallus Blume ex Decne, del cual se relaciona la presencia de tres especies: A. paeoniifolius (Dennst.) Nicolson, A. konjac K. Koch y A. titanum (Becc.) Becc. ex Arcang. Se establecen precisiones sobre la nomenclatura, se describen el género y dos de las especies, a la vez que se actualiza la clave analítica para diferenciar los géneros de Araceae presentes en el país y se ofrece otra para diferenciar las dos especies descritas. Se discuten aspectos relacionados con su utilidad (comprobada o potencial), desde la perspectiva alimentaria, medicinal y para el enriquecimiento nutricional del suelo.
Conclusiones: Amorphophallus Blume ex Decne, denotado al menos por A. paeoniifolius (Dennst.) Nicolson y A. konjac K. Koch, dado su frecuente cultivo ornamental en Cuba, ha de ser en lo adelante incluido en los catálogos y publicaciones especializadas dedicadas a la flora del país. Se identifican potencialidades para una gestión sostenible de las especies.
EFEK KETERAMPILAN SOSIAL DAN JOB CRAFTING TERHADAP KETERIKATAN KERJA
Authors: Robbaanii Mega Maghfira , Baihaqi MIF , Juwitaningrum Ita 
Published: March 2021

When a company has employees with high keterikatan kerja, the company will have employees who are able to carry out and modify work according to their capabilities. The other hand, job crafting plays an important role in change management and organizational success, this is because employees will be able to overcome problems in the workplace by modifying work according to their capabilities. Job crafting is directly and positively influenced by keterampilan sosials to interact effectively and influence others in the workplace. This study used linear regression that participated by 53 employees.. The results were keterampilan sosials and job crafting had an effect on keterikatan kerja on employees by variance explained of 46.1%.
Performance evaluation of super resolution algorithms in generating high resolution images using MSE and PSNR
Authors: Murugan Palani , Kumar Gautam Vivek , Ramanathan V. 
Published: March 2021

In recent days, requirement of high spatial resolution remote sensing data in various fields has increased tremendously. High resolution satellite remote sensing data is obtained with long focal length optical systems and low altitude. As fabrication of high-resolution optical system and accommodating on the satellite is a challenging task, various alternate methods are being explored to get high resolution imageries. Alternately the high-resolution data can be obtained from super resolution techniques. The super resolution technique uses single or multiple low-resolution mis-registered data sets to generate high resolution data set. Various algorithms are employed in super resolution technique to derive high spatial resolution. In this paper we have compared two methods namely overlapping and interleaving methods and their capability in generating high resolution data are presented.
Improve Student Skills in Read Understanding Text Explanation with Using the SQ3R Method
Authors: R Delina , Mahendra Hatma Heris , Nurani Riga Zahara 
Published: March 2021

<p><em>The research has problem less reading comprehension ability explanation text in class IV. This research aims to increase reading comprehension ability using SQ3R in text explanation at IV class SDN Nantang. The researcher uses classroom action research. The result shows the use of SQ3R can increase reading comprehension ability in text explanation. Pre-test shows average scores are 45,83 with 27% complete and 73% incomplete. Cycle I with average scores are 75,67% with 60% complete and 40% incomplete and cycle II average scores 87,83 with 90% complete and 10% incomplete. The result of average is 42. Reading comprehension ability is 53%. Based on the increase in pre-test until cycle I and cycle II, the conclusion is SQ3R can increase reading comprehension ability in text explanation at IV class SDN Nantang sub-district Cigalontang regency Tasikmalaya period 2020/2021</em></p>
Epidemiology of Fractures Sustained During Electric Scooter Accidents
Authors: Shichman Ittai , Shaked Or , Factor Shai , Elbaz Etay , Khoury Amal 
Published: March 2021

Background:
The use of electric scooters (e-scooters) has dramatically increased as they become an attractive alternative for public transportation in busy metropolitan areas worldwide. Despite their benefits, e-scooters challenge the health-care system with poorly understood forms of injuries, mainly orthopaedic fractures. To our knowledge, this study is the first to investigate e-scooter-related orthopaedic fracture patterns, mechanisms of injury, and management.

Methods:
Data on 3,331 e-scooter-related admissions were retrospectively collected between May 2017 and February 2020 in a level-I trauma center. These admissions were analyzed for demographic variables, orthopaedic fracture diagnosis (using the AO/OTA classification), associated injuries, and surgical treatment.

Results:
During the study period, a total of 716 fractures were diagnosed in 563 patients, with 46.4% of the patients requiring hospitalization. Of 492 upper-limb fractures, 89.2% occurred in a rider fall mechanism; and of 210 lower-limb fractures, 15.7% occurred in rider-vehicle collisions. Fifty-nine percent of long bone fractures were complex fragmentary and/or intra-articular fractures. Orthopaedic surgeons recommended that 225 fractures undergo surgical treatment. The most common upper-limb fracture was AO/OTA class 2R1A, with open reduction and internal fixation of the distal part of the radius being the most common upper-limb procedure (n = 58). The most common lower-limb fracture was AO/OTA class 41C, with open reduction and internal fixation of the proximal part of the tibia being the most common procedure (n = 28). A total of 22 patients (3.9%) required reoperation within 1 year.

Conclusions:
This investigation provides unique information on demographic characteristics, patterns, and treatment of orthopaedic fractures secondary to the high-energy mechanism of e-scooter injuries. These new in-depth data are important, first, for health-care system preparedness with regard to management and resource allocation to treat these challenging injuries and, second, for legislators promoting safety and injury prevention strategies.
Removal of Suspended Solids Using Pumice Stone in Integrated Fixed Film Activated Sludge Process
Authors: Shehab Diala , Al Haddad Ghassan , Hadid Mahmoud 
Published: March 2021

Wastewater treatment plants operators prefer to make adjustments because they are more cost effective, to use the existing tank instead of building new ones. In this case an imported materials would be used as bio-loads to increase biomass and thus maintain efficiency as the next organic loading increases.In the present study, a local substance "pumice stone" was used as a biological carrier in the aeration tank, and the experiments were carried out in five stages: without biological carriers, filling ratio of 4%,10%,20%, and25% with pumice stone, the maximum organic loading at each stage (1.1884, 1.2144, 1.9432, 2.7768, 3.3141)g BOD /l.d respectively.Other experiments were carried out to determine the best filling ratio, the SS removal ratio was (67.57%, 69.5%,79.44%,89.61%,and 99.2%) when the filling ratio with pumice stone was (0, 4, 10, 20, and 25)% respectively, at organic loading 2 ± 0.0528 g BOD /l.d, so the best filling ratio of pumice stone was 25% .
In this case an imported materials would be used as bio-loads to increase biomass and thus maintain efficiency as the next organic loading increases.
In this research, a local substance "pumice stone" was used as a biological carrier in the aeration tank, and the experiments were carried out in five stages: without biological carriers, filling ratio of 4%,10%,20%, and25% with pumice stone, The maximum organic loading at each stage (1.1884, 1.2144, 1.9432, 2.7768, 3.3141)g BOD /l.d respectively.
The SS removal ratio was when we operatio without biological carriers and with pumice stone with a filling ratio of 4% (82.86 % and 84.96 %) respectively, at organic loading 1.15 ± 0.0384 g BOD / d, the SS removal ratio when using pumice stone with a filling ratio of 4% and 10% was (80.36%, 91.59%) respectively, at organic loading 1.25 ± 0.024 g BOD /l.d
The SS removal ratio when using pumice stone with a filling ratio of 10% and 20% was (79.44%, 91.23%) respectively, at organic loading 2 ± 0.0528 g BOD /l.d , and The SS removal ratio when using pumice stone with a filling ratio of 20% and 25% was (80.45 %, 92.28%) respectively, at organic loading 2.85 ± 0.0624 g BOD /l.d ,which means there is improvement in yield using pumice stone with filling ratio 4%,10%,20 and 25% by 2.1% ,11.23%,11.79% and 11.83%, respectively.
Intentional fallers with complex pelvic and acetabular fractures do not have worse radiological and functional outcomes than accidental fallers
Authors: Yu Yi-Hsun , Chou Ying-Chao , Yeh Bo-Yan , Hsu Yung-Heng , Chen I-Jung , Wei Lien-Chung 
Published: March 2021

Abstract
Individuals who fell from heights of > 6 m can suffer from complex pelvic and acetabular fractures. The extent to which an intentional fall correlates with prognosis and outcome after osteosynthesis is unclear. We aimed to investigate the clinical outcomes of fallers with pelvic and acetabular fractures after osteosynthesis and to compare the radiological and functional outcomes between intentional and accidental fallers. We retrospectively reviewed forty-nine fallers who fell from heights of > 6 m, developed pelvic and acetabular fractures, survived after resuscitation, and completed surgical treatments between 2014 and 2017. The fallers were divided into the intentional and accidental fallers. Sixteen patients were intentional fallers, whereas the rest of the patients fell accidentally. Psychiatric counselling was performed for each intentional fallers during their follow ups. All patients who fell intentionally had pre-existing mental disorders, and the major diagnosis was adjustment disorder. The group with intentional fallers had female sex predominance, higher injury and new injury severity scores, and longer hospital stay. However, the early loss of fixation (less than three month) and functional outcomes (Merle d'Aubigné and Majeed hip scores at 6- and 12-month follow-up) did not significantly differ between the intentional and accidental fallers. We found that the intentional fallers with pelvic and acetabular fractures might be accompanied by more severe combined injuries compared to accidental fallers. Under a standardized perioperative protocol and individualized physical and mental rehabilitation program, the functional and radiological outcomes of the intentional fallers could be comparable to those of the accidental fallers.
Acute Kidney Injuries of otherwise normal kidneys have different characteristics in different stages of COVID-19
Authors: Murt Ahmet , Dincer Mevlut Tamer , Karaca Cebrail , Trabulus Sinan , Karaali Ridvan , Balkan Ilker Inanc , Seyahi Nurhan , Altiparmak Mehmet Riza 
Published: March 2021

Abstract
BackgroundKidney involvement in COVID-19 may manifest as acute kidney injury (AKI). This study aimed to analyze and compare AKIs in different stages of COVID-19.Methods1056 hospitalized COVID-19 patients were retrospectively evaluated and 383 of them met the inclusion criteria. Eighty-nine patients who developed AKI, but didn’t have prior kidney diseases were involved in the final analysis. Patients were classified into three groups, those who had AKI on admission, those who developed AKI in the first week and those who developed AKI starting from the 7th day. Electrolytes, acid-base status and changes in the inflammatory markers were compared. ResultsPatients who developed AKI after the 7th day had higher peak CRP and D-dimer levels and lower nadir lymphocyte counts (p=0.000, 0.004 and 0.003 respectively). AKI that developed later was more related to immunologic response and had significantly higher mortality, reaching as high as 44% for those who developed AKI after 7th day. Patients who died had lower serum albumin levels than those who survived (p=0,000). Hematuria and proteinuria (p=0.001; OR: 2.4; 95% CI: 1.4 – 3.8 and p=0.015; OR: 4.34; 95% CI: 1.3 – 14.3 respectively) were more common in patients who died. Hypernatremia (p=0.000, OR: 6.5; 95% CI:3.0 – 13.9) and hyperchloremia (p=0,002, OR:3,8; 95%CI: 1,7 – 8,4) were also observed more often in patients who died.ConclusionsAKI in COVID-19 is not of one kind. When developed, AKI should be evaluated in conjunction with the disease stage and possible etiologies. AKI that develops later has a worse prognosis and is more related to electrolyte abnormalities.
High sodium ionic conductivity in PEO/PVP solid polymer electrolytes with InAs nanowire fillers
Authors: Devi Chandni , Gellanki Jnaneswari , Pettersson Håkan , Kumar Sandeep 
Published: March 2021

Abstract
Solid-state sodium ion batteries are frequently referred to as the most promising technology for future energy storage applications. However, developing a solid electrolyte with high ionic conductivity and a wide electrochemical stability window, remains a major challenge. Although solid-polymer electrolytes have attracted great interest due to their low cost, low density and very good processability, they generally have significantly lower ionic conductivity and poor mechanical strength. Here, we report on the development of a low-cost solid polymer electrolyte comprised of poly(ethylene oxide), poly(vinylpyrrolidone) and sodium hexafluorophosphate, mixed with indium arsenide nanowires. We show that the addition of 1.0 percent by weight of nanowires increases the sodium ion conductivity in the polymer to 1.50 × 10-4 Scm−1 at 40° C. This is the highest reported conductivity for any solid polymer electrolyte to date. In order to explain this remarkable characteristic, we propose a new transport model where sodium ions hop between close-spaced defect sites present on the surface of the nanowires, forming an effective complex conductive percolation network. Our work represents a significant advance in the development of novel solid polymer electrolytes with embedded ultrafast 1D percolation networks for next generations of low-cost, high-performance batteries with excellent energy storage capabilities.
Driving high capacity anode-free lithium metal batteries under unpressurized and lean electrolyte condition by an electron-deficient current collector
Authors: Kwon Hyeokjin , Lee Ju-Hyuk , Roh Youngil , Baek Jaewon , Shin Dong Jae , Yoon Jong Keon , Ha Hoe Jin , Kim Je Young , Kim Hee-Tak 
Published: March 2021

Abstract
The long-term cycling of anode-free lithium metal batteries (AF-LMBs) with a liquid electrolyte is hindered by the formation of inhomogeneous solid electrolyte interphase (SEI) on current collector and the subsequent irregular Li deposition. Here, we report the nano-window (NW) defect-enriched carbon current collector with a lowered Fermi level, which can address the critical issues. The low Fermi-level surface induces a defect-free SEI layer by alleviating electron tunneling at the interface, and leads to high Li nucleation density and lateral Li growth via Li-C orbital hybridization. DFT calculations and spectroscopic analyses elucidate that these effects are rooted in the electron deficiency of the NW defect structure. An AF-LMB employing an NCM811 cathode, NW-enriched 3D-current collector, and carbonate liquid electrolyte exhibits 90% capacity retention for over 50 cycles under unpressurized and lean electrolyte conditions. The defect chemistry presents a new design principle of tuning the electronic structure of current collectors enabling 3-dimensional Li deposition in AF-LMBs.
Financial, energy, performance and emission analysis of a repurpose used cooking oil (RUCO) diesel fuel blends
Authors: Verma Tikendra Nath , Dasore Abhishek , Shrivastava Pankaj , Ağbulut Ümit , Sarıdemir Suat , Rajak Upendra , Veza Ibham , Reddy Venguru Nageswara 
Published: March 2021

Abstract
In this study, exergy, energy, performance and emission analysis were investigated for the repurpose used cooking oil (RUCO), Jatropha curcas (JC), Pongamia Pinnata (PP) and petroleum diesel fuel (PDF) fueled compression ignition engine under various engine loads. In this study, 20% of each biodiesel was tested in single cylinder, four stroke, diesel engine, given that open literature shows the potential use of biodiesel of up to 20% in a diesel engine without modification. The diesel engine was used to investigate their performance, combustion and emission characteristics of diesel-repurpose used cooking oil, Jatropha curcas, and Pongamia Pinnata fuel samples at different compression ratios and load condition. The results showed that thermal efficiency is higher with the PDF compared to DRUCO20, DJC20, DPP20 biodiesel blends. The exhaust gas temperature decreased and specific fuel consumption of the engine were increased by adding RUCO, Jatropha curcas, Pongamia Pinnata to petroleum diesel fuel. Engine ecological analysis showed that blended fuel reduces the average hydrocarbons (HC), carbon monoxide (CO) and NO X than petroleum diesel fuel. While DRUCO20 showed better performance and reduction in ecological analysis but higher ecological of CO 2 is comparable with DCJ20 and DPP20.
Restoration of spermatogenesis in azoospermic mice by bone marrow mesenchymal stromal/stem cells conditioned medium
Authors: Zhankina Rano , Afshar Alireza , Farrar Zohreh , Khoradmehr Arezoo , Baghban Mandana , Suleiman Mahmud , Dorvash Mohammad Reza , Baghban Neda , Rahmanifar Farhad , Tanideh Nader , Hosseinabadi Omid Koohi , Monfared Ali Arabi , Zare Shahrokh , Khodabandeh Zahra , Farjam Mojtaba , Nabipour Iraj , Shirazi Reza , Zhanbyrbekuly Ulanbek , Tamadon Amin 
Published: March 2021

Abstract
One of the main cause of male infertility is non-obstructive azoospermia, which is not manageable medically. The first aim of the current research was to show the effect of extracellular vesicle-contained conditioned media (CM) instead of mesenchymal stromal/stem cells (MSCs) for treatment of non-obstructive azoospermia. In the next step, we aimed to study the differentiation potential of MSCs into spermatocytes after injection of MSCs in mice seminiferous tubules. This study has provided an applied treatment for busulfan-induced azoospermia using adipose tissue-derived (AT-MSCs) and bone marrow-derived MSCs (BM-MSCs) and bone marrow CM (BMCM) in animal models. In this regard, 30 male adult Balb/C mice (30±5g) and two female eGFP+/+ Balb/C mice (30±5g) were used to design experimental groups and to culture stem cells, respectively. Then, six groups including intact control, azoospermia, AT-MSC therapy, BM-MSC therapy, BMCM therapy, and spontaneous healing groups were considered. All groups except intact control were induced azoospermia by injecting two doses of busulfan (10 mg/kg) with 21 days’ interval. Testes of all mice were removed and studied through histomorphometry and flow cytometry analysis 60 days after treatment. Histomorphometry and flow cytometry evaluation of testes showed normal morphology of most of the seminiferous tubules of therapy groups as well as successful recovery of spermatogenesis, but spermatogenesis was not observed in the azoospermia group. It is worth notable that the results of the BM-MSC therapy group were more favorable than other therapy groups. Consequently, AT-MSC, BM-MSC and BMCM can be strongly suggested as candidates in the therapy of azoospermia.