bluuebunny/crossref_metadata_2025_split huggingface dataset:
Lightning Behaviour during the COVID-19 Pandemic
Authors: Yusfiandika Fazandra , Lim Siow Chun , Gomes Chandima , Chockalingam Aravind , Cheng Pay Lee 
Published: October 2021

Background COVID-19 has drastically dampened human activities since early 2020. Studies have shown that this has resulted in changes in air temperature and humidity. Since lightning activities are dependent on air temperature and humidity, this study is conducted to evaluate the correlation between the intensity of lightning activities with the atmospheric changes, and investigates the changes, in lightning activities due to atmospheric changes during the COVID-19 pandemic. Methods The hypothesis was tested through a t-test and Pearson’s correlation study. The variation trend of lightning strikes count (LSC) in Europe and Oceania during the five months COVID-19 lockdown period (March – July) compared to the same period in the previous five years from 2015 to 2019 is investigated. Results Statistical analysis shows the LSC in Europe and Oceania during the lockdown period dropped significantly by more than 50% and 44% respectively compared to the same period in previous five years. Furthermore, LSC was found to be positively correlated with air temperature and relative humidity in Europe. However, in Oceania, LSC seems to be only positively correlated with air temperature but negatively correlated with relative humidity. Conclusions This study seems to suggest that lightning activities have significantly changed during this pandemic due to reduction in human activities.
Production and characteristics of sailfin catfish (Pterygoplichthys pardalis) protein hydrolysate
Authors: Prihanto Asep Awaludin , Nurdiani Rahmi , Sari Lina Widya 
Published: October 2021

Background: The sailfin catfish (Pterygoplichthys pardalis) is a freshwater fish from the Loricariidae family, and is considered an invasive species in Indonesia. The fish is usually neglected and discarded. Its protein hydrolysate is the product of the breakdown of proteins into amino acids through the hydrolysis of acids, bases, or enzymes. Therefore, this study aims to determine the hydrolysate characteristics of sailfin catfish (Pterygoplichthys pardalis) proteins, produced with different pH and hydrolysis durations. Methods: The hydrolysis was carried out with variable pH (control, 5, 7, 9) and hydrolysis durations (12 and 24 hours) in three replicates. Results: The hydrolysis duration, pH, and interaction of both variables had significant effects (p<0.05) on the parameters of yield, antioxidant activity, degree of hydrolysis, protein levels, and ash content. Similarly, the moisture content, hydrolysis duration, and pH were significantly affected (p<0.05), while their interactions were not (p>0.05). The pH treatment had a significant effect on fat content (p<0.05), while the hydrolysis length and the interaction between the two had no significant effect (p>0.05). Based on this study, the best resulting production of fish protein hydrolysate (FPH) from sailfin catfish were a for a combination of pH 9 and a hydrolysis duration of 24 hours. The characteristics of FPH produced were as follows: a yield of 57.39%, antioxidant activity 63.99%, degree of hydrolysis 40.67%, water content 7.28%, ash content 7.63%, fat content 5.10%, protein content 34.51%, molecular weight 6.14 -118.17 KDa, total essential amino acids 49.30%, and nonessential amino acids 50.71%. Conclusions: Two factors affected FPH characteristics in sailfin catfish (Pterygoplichthys pardalis). The best processing conditions to obtain optimal characteristics for FPH were a yield of 57.39%, antioxidant levels of 63.99%, a DH of 40.67%, a moisture content of 7.28%, ash content of 7.63%, fat content of 5.10%, and protein content of 34.51%.
Data assimilation and agent-based modelling: towards the incorporation of categorical agent parameters
Authors: Ternes Patricia , Ward Jonathan A , Heppenstall Alison , Kumar Vijay , Kieu Le-Minh , Malleson Nick 
Published: October 2021

This paper explores the use of a particle filter—a data assimilation method—to incorporate real-time data into an agent-based model. We apply the method to a simulation of real pedestrians moving through the concourse of Grand Central Terminal in New York City (USA). The results show that the particle filter does not perform well due to (i) the unpredictable behaviour of some pedestrians and (ii) because the filter does not optimise the categorical agent parameters that are characteristic of this type of model. This problem only arises because the experiments use real-world pedestrian movement data, rather than simulated, hypothetical data, as is more common. We point to a potential solution that involves resampling some of the variables in a particle, such as the locations of the agents in space, but keeps other variables such as the agents’ choice of destination. This research illustrates the importance of including real-world data and provides a proof of concept for the application of an improved particle filter to an agent-based model. The obstacles and solutions discussed have important implications for future work that is focused on building large-scale real-time agent-based models.
Natural and anthropogenic radioactivity in some vegetables and fruits commonly consumed in the Western Black Sea region of Turkey
Authors: Altamemi Raghda A. A. , Turhan Şeref , Kurnaz Asli 
Published: October 2021

Abstract
In this study, the activity concentration of 226Ra, 232Th, 40K, and 137Cs in some vegetable and fruit samples frequently consumed in Kastamonu province located in the West Black Sea region of Turkey were determined using a gamma-ray spectrometer. The activity concentrations of 226Ra, 232Th and 40K varied from 0.8 ± 0.1 to 32.8 ± 1.3, 0.7 ± 0.1 to 41.3 ± 21 and 391.8 ± 18.3 to 4679.0 ± 311.4 Bq kg−1 (dw), respectively, in twenty-eight vegetables and 1.3 ± 0.1 to 12.6 ± 0.4, 1.4 ± 0.1 to 15.0 ± 0.5 and 133.0 ± 84 to 777.0 ± 69.4 Bq kg−1 (dw), respectively, in seven fruit samples. The highest activity concentration of 226Ra and 232Th was measured in the garlic sample, while the highest activity concentration of 40K was measured in the spinach sample. Artificial radionuclide 137Cs was measured only in four vegetable samples; its activity concentration in garlic, eggplant, cucumber and carrot samples was determined as 9.6 ± 0.3, 3.1 ± 0.1, 3.1 ± 0.1 and 2.2 ± 0.1 Bq kg−1 (dw), respectively. The results obtained were compared with the results of similar studies in the literature. Annual effective radiation dose to adults due to the internal irradiation caused by ingestion of the investigated vegetable and fruit samples, and the corresponding excess lifetime cancer risk were estimated as 201 µSv and 8.9 × 10−5, respectively. The contribution of 40K to the total annual effective radiation dose was found as approximately 70%.
Microsporogénesis y micromorfología del polen de la planta Alcea rosea (Malvaceae)
Authors: Rincón-Barón Edgar Javier , Torres-Rodríguez Gerardo Andrés , Passarelli Lilian M. , Zarate Diego A , Cuarán Viviana Lucia , Plata-Arboleda Sayonara 
Published: October 2021

Introducción: Los estudios sobre microsporogénesis, micromorfología y estructura de los granos de polen en Malvaceae son escasos. Objetivos: Describir el proceso de microsporogénesis y aspectos micromorfológicos de los granos de polen en A. rosea. Métodos: Se procesaron más de 30 andróforos de acuerdo con los protocolos estándar para incrustar y seccionar en parafina. Las secciones obtenidas se tiñeron con azul de Safranina-Alcian, las anteras inmaduras y no fijadas se tiñeron con azul de anilina. Se procesaron secciones de resina adicionales de los andróforos y se tiñeron con azul de toluidina. Se observaron secciones ultrafinas con microscopía electrónica de transmisión (TEM). Para la observación con microscopía electrónica de barrido (SEM), el material se fijó y deshidrató en 2,2 dimetoxipropano, luego se secó hasta un punto crítico y se recubrieron con oro. Resultados: las anteras se diferencian de una masa celular en los extremos distales de los filamentos del estambre. La pared de la antera madura presenta una capa externa de células epidérmicas y una capa interna, el endotecio. Las células madre de microesporas se dividen por mitosis y luego experimentan meiosis para formar tétradas. El tapete es inicialmente celular y forma una sola capa de células y luego pierde integridad celular al invadir el lóculo de microsporangio, formando un periplasmodio. Durante la formación de la esporodermis, primero se deposita la exina y luego la intina. Para el momento de la liberación de los granos de polen, el tapete se ha degenerado por completo. Los granos de polen son pantoporados, apolares, con simetría radial, esferoidales, con espinas, bacula, gránulos y microgránulos. El tectum está perforado con foveolea dispuesta homogéneamente en toda la superficie y con polenkit. La exina es ancha (5-6 µm) y consta de una endexina gruesa de 3.5 a 4 µm y una ektexina fina (0.6-0.7 µm). La ultraestructura muestra columelas claramente definidas formando el infratectum. Se aprecian tricomas nectaríferos unicelulares glandulares capitados (TG) cubriendo toda la superficie de los filamentos de los estambres. Conclusiones: La estructura y desarrollo de las anteras sigue los patrones conocidos de las angiospermas. La microsporogénesis simultánea y el depósito centrípeto de la esporodermis se han descrito previamente para Malvaceae.
A FICÇÃO CIENTÍFICA E O ENSINO DE CIÊNCIAS
Authors: Chimes Fabiana Gama , Vieira Valéria Da Silva 
Published: October 2021

A ciência pode ser considerada uma construção humana, histórica e que está sempre em transformação, e assim deve ser incorporada ao processo ensino-aprendizagem. Dessa forma, se faz necessário buscar diferentes métodos de ensino que aproximem os aprendizes ao mundo científico, despertando o processo de apropriação e aprimoramento do conhecimento. O uso de filmes pode uma efetiva ferramenta de ensino para apropriação do conhecimento científico, facilitando de forma lúdica as situações de troca, estabelecendo relações entre o estudo científico e a realidade. O presente trabalho tem como objetivo utilizar uma temática apresentada por filmes comerciais como ferramenta de aprendizagem significativa no ensino de ciências. Assim como, tem como objetivos específicos analisar os filmes “Jurassic Park – O Parque dos Dinossauros” e “Jurassic World – O mundo dos Dinossauros”, para identificar possíveis conteúdos do ensino de ciências; realizar análise crítica dos conteúdos identificados para compreensão correta dos conceitos Biológicos e construir um catálogo descritivo, para a utilização desses filmes de ficção científica como possíveis organizadores prévios no ensino de disciplinas afins. A metodologia possui uma abordagem qualitativa, analisando os filmes por uma abordagem descritiva para compreender como os conceitos cinematográficos podem estar presentes no ensino de ciências. Os resultados da análise descritiva, da sequência de filmes Jurassic Park/World, levaram a criação de um catálogo que poderá ser utilizado como ferramenta de aprendizagem, abordando áreas presentes na matriz curricular do Ensino Médio. Conclui-se que este trabalho obteve resultados suficientes para sugerir a utilização de filmes comerciais como organizadores prévios. Contudo é importante ressaltar que o professor precisa identificar o direcionamento dessas mídias para o entretenimento, sabendo extrair delas fragmentos que poderão ser aproveitados em uma aprendizagem significativa no ensino de ciências.
Palavras-chave: Genética; Ensino de ciências; Organizadores prévios; Filmes de ficção científica.
Long-term results of treatment of pharmacoresistant temporal lobe epilepsy
Authors: Krylov V. V. , Gekht A. B. , Trifonov I. S. , Kordonskaya O. O. , Sinkin M. V. 
Published: October 2021

The aim of the study wasto evaluate the long-term results ofsurgicaltreatment of patients with pharmacoresistant epilepsy.Materials and methods. A retrospective analysis of treatment outcomes in patients with drug-resistant temporal lobe epilepsy was performed. According to the inclusion and exclusion criteria, 96 patients were selected for the study. Group 1 contained 49 operated patients with MR-positive epilepsy and Group 2 contained 47 operated patients with MR-ne‑ gative epilepsy. The control group consisted of 53 unoperated patients. The outcomes ofsurgical treatment were assessed after 6, 12, and 24 months. Results. Unfavorable outcomes occurred more frequently among nonoperated patients compared to both surgical groups (p <0.001). The probability of the 2-year remission after surgery in operated MRI positive patients was 60 %, in MRI negative group was 45 %, and in conservative group – only 2 %. The mean duration of the seizures-free period was greatest̆in the MRI positive surgical group (15.4 ± 1.5 months), and shortest in the control group (3.3 ± 0.9 months).Conclusion. The presented results prove the effectiveness and safety of surgical treatment of patients with temporal lobe epilepsy.
Features of intraoperative neuromonitoring of the supplementary motor area of the brain. Literature review and case report
Authors: Kanshina D. S. , Podgurskaya M. G. , Yakovleva D. V. , Malysheva O. V. , Chemodakova K. A. , Zuev A. A. 
Published: October 2021

Introduction. Supplementary motor area (SMA) syndrome is a symptom complex resulting from damage to the premotor cortex and it’s subcortical projection. There is no generally accepted protocol for functional mapping of SMA during neurosurgical intervention in this area.The objective of the publication is to present a review of the literature and clinical cases from practice that describes the treatment of two patients with glioblastomas in the posterior regions of the superior frontal gyrus with IOM. Given the localization of the tumor in the dominant hemisphere, one operation was performed with awakening, the other according to the protocol of total intravenous anesthesia with mapping of only motor representative areas.Clinical cases. In both cases, during intraoperative direct electrical stimulation of the cortex subjected to resection, evoked motor responses were not recorded. The modalities used made it possible to continuously evaluate the viability of the cortico‑spinal tract. During the surgery with awakening, episodes of an instantaneous termination of the initia‑ tion of speech and counter directional movements in the arm were recorded – in the subcortical projection of the SMA at a current strength of 1–2 mA. Both patients in the early postoperative period showed the development of a gross transient neurological deficit in the form of hemiparesis and sensorimotor aphasia, which was a manifestation of pos‑ tresection SMA syndrome. During the follow‑up (control) examination 6–7 months after the operation, the following was observed in the clinical picture: mild hemiparesis up to 4–5 points, impaired bimanual coordination; difficulty the ini‑ tiation of speech spontaneous speech.Conclusion. When mapping the cortex and subcortical structures, the localization of SMA can be assumed in the event of a negative motor response of the cerebral cortex using the protocol of low‑frequency 1 Hz stimulation under EcoG control. Standardization of the SMA mapping protocol would be useful in clinical practice for determining the bounda
Comparison of effectiveness of Cawthorne Cooksey exercise with Brandt Daroff exercise in managing post Epley’s residual dizziness in patients with posterior canal benign paroxysmal positional vertigo
Authors: Bhadouriya Sunil K. S. , Priyamvada Shaili , Singh Hukam 
Published: October 2021

<p class="abstract"><strong>Background:</strong> Benign paroxysmal positional vertigo (BPPV) is the most common cause of peripheral vertigo. Vertigo and balance disorders are among the most common symptoms experienced in patients who visit ENT outpatient department. BPPV is a common vestibular disorder leading to significant morbidity and psychosocial impact. Residual dizziness is a common condition that manifests as persistent disabling imbalance after successful repositioning maneuvers for BPPV.</p><p class="abstract"><strong>Methods: </strong>In this study we analysed and compared the effectiveness of Cawthorne Cooksey Exercise with Brandt Daroff Exercise to treat residual dizziness after successful Epley’s maneuver for posterior canal benign paroxysmal positional vertigo. A total of 30 subjects with residual dizziness after successful Epley’s maneuver for posterior canal BPPV were included in our study, 10 were male and 20 were female. The Group A received the Cawthorne Cooksey exercise post Epley’s maneuver and Group B received the Brandt Daroff exercise post Epley’s maneuver. </p><p class="abstract"><strong>Results:</strong> We conclude that both the groups have significant improvement in their symptoms and balance. This was indicated by the results. Despite the significant results within the groups, there was no significant difference between the groups, means both exercises showed almost equal improvement in their respective group.</p><p><strong>Conclusions: </strong>This<strong> </strong>study concludes that both Cawthorne Cooksey exercise and Brandt Daroff exercise are helpful in treating residual dizziness after successful Epley’s maneuver in posterior canal BPPV patients. These exercises are safe and able to reduce subjective symptoms and imbalance hence, any of these can be recommended for treating post Epley’s residual dizziness in patients with posterior canal BPPV. </p>
Study of mid and long term outcome of hip fracture in elderly operated within 48 hours versus conservative management
Authors: Marshall Delis S. , Ch’ng Alan S. W. , Looi Irene 
Published: October 2021

<p class="abstract"><strong>Background: </strong>Hip fractures are commonly associated with high morbidities and mortalities. This study aimed to determine post-hip fracture outcomes and survival among patients who underwent operation within 48 hours of fracture diagnosis and among those being treated conservatively.</p><p class="abstract"><strong>Methods: </strong>This retrospective cohort study was conducted at the Hospital Seberang Jaya among patients diagnosed with hip fracture from January to December 2016; confirmed clinical and radiological method. Descriptive analysis was conducted using Statistical package for social sciences (SPSS) version 23.</p><p class="abstract"><strong>Results: </strong>The mean (SD) age of the 61 operated patients was 74 (7.7) years and for the 19 conservatively managed patients 79 (8.0) years. At 12 months, 30 (37.5%) of operated ones, required assisted mobility compared to 8 (10%) of conservatively managed patients. Other outcomes comparable between operated and conservative patients at 12 months post-intervention include: ability to feed on own 46 (57.5%) versus 7 (8.8%), able to dress on own, 45 (56.3%) versus 6 (7.5%); able to bathe on own; 43 (53.8%) versus 2 (2.5%), and independently attending to own toilet needs 44 (55.0%) versus 1 (1.3%). Our study revealed, overall survival were comparatively better among those operated to conservative at 12 months; 52 (85%) versus 9 (47.4%). The mortality at 12 months in the conservative group is much higher than operative group.</p><p class="abstract"><strong>Conclusions:</strong> Ambulatory mobility and survival are significantly better at 12 months post-fracture among the operated patients. Hip fracture must be treated as an emergency and its surgical management given priority.</p><p class="abstract"> </p>
A review of pediatric femoral fracture patterns, surgical managements, and outcomes
Authors: Almigdad Ahmad K. , Banimelhem Khalid A. , Almanasir Ghandi K. , Altaani Ehab M. , Al-Qudah Ala K. 
Published: October 2021

<p class="abstract"><strong>Background: </strong>Femoral fractures are the most common pediatric orthopedic fractures that require hospitalization. The non-accidental injury should be suspected in early infancy and non-ambulatory children. Treatment of pediatric femoral fractures is widely variable and depends on intrinsic and extrinsic factors. This study presents pediatric femoral fracture epidemiology and outcomes and reviews the literature regarding best practices in pediatric femoral fractures.</p><p class="abstract"><strong>Methods:</strong> This retrospective study reviewed the clinical and radiological records of forty-sevens femur fractures in the pediatric age group from September 2020 until June 2021 in Prince Rashid bin AL Hassan Military Hospital in Jordan.</p><p class="abstract"><strong>Results:</strong> Males form 80.9% of patients. The mean age for the patients was equal to 6.70 years (±3.91). Falling is responsible for the majority of the injury. The middle femur shaft was fractured in 46.8%, and the pathological fracture was found in 17% of patients. Non-operative treatment by cast represents 42.6%. All fractures were healed at 7.90 weeks (±2.37).</p><p class="abstract"><strong>Conclusions: </strong>Pediatric femur fracture lacks standardized treatment. Nevertheless, most fractures healed with satisfactory results. Younger age groups are more likely to be treated non-operatively. Non-surgical treatment is more prone to shortening, angulation, and later return to weight-bearing and activity. Children older than eight years treated by plating demonstrated faster healing, return to full weight-bearing, and lower complication rate. </p>
Hip fractures: mortality and correlation with preoperative comorbidities in Indian elderly population
Authors: Padhi Prashant Pratim , Rai Pankaj 
Published: October 2021

<p class="abstract"><strong>Background:</strong> Hip fractures are an emerging health care problem due to increase in the elderly population all over the world and the associated complications, morbidity and mortality. The objective of this study is to find out the mortality rates in Indian elderly population with hip fractures and to establish an association between various related complications pre and post operatively for a better risk stratification.</p><p class="abstract"><strong>Methods: </strong>A prospective observational cohort study, was carried out at a high-volume orthopaedic centre from 2009 to 2018. And all patients managed for hip fractures were followed up till death or 05 years.</p><p class="abstract"><strong>Results: </strong>The age adjusted first-year mortality was found to be 33% with statistically significant increase in the mortality in individuals with three or more pre-op comorbidities. The significantly associated co-morbidities were chronic renal failure (Hazard ratio 2.32 with CI 1.65- 3.24) and diabetes mellitus (Hazard ratio 1.66 with CI 1.25 – 2.21). There has been a significant dip in the cumulative survival rates of these individuals irrespective of age, sex, preop anaemia.</p><p class="abstract"><strong>Conclusions: </strong>A knowledge about the comorbidities/ risk factors and the extent to which they influence the long-term survival in the geriatric hip fracture patients can help treating physician to effectively prioritise and plan management in coordination with allied specialities. </p>
¿Populismo petrolero? Experiencias recientes en México y Ecuador.
Authors: García Chediak Rosa 
Published: October 2021

El presente texto presenta un abordaje a las determinantes clave del concepto original de populismo latinoamericano; sobre esa base discute la pertinencia de su aplicación en la época actual. Basándose en los casos de México y Ecuador y su manejo de los recursos petroleros, el artículo propone elconcepto de “populismo petrolero” como subcategoría del concepto clásico. Finalmente, se destaca el modo en que las políticas petroleras de ambos países han desatado relaciones complejas con los sectores populares, donde la adhesión está lejos de ser la nota distintiva o bien prende de frágiles acomodos,mientras su participación en la política nacional -cuando acontece- más que subordinada, tiende a ser coyuntural.