bluuebunny/crossref_metadata_2025_split huggingface dataset:
Do Arctic mixed-phase clouds sometimes dissipate due to insufficient aerosol? Evidence from comparisons between observations and idealized simulations
Authors: Sterzinger Lucas J. , Sedlar Joseph , Guy Heather , Neely III Ryan R. , Igel Adele L. 
Published: July 2022

Abstract. Mixed-phase clouds are ubiquitous in the Arctic. These clouds can persist for days and dissipate in a matter of hours. It is sometimes unknown what
causes this sudden dissipation, but aerosol–cloud interactions may be involved. Arctic aerosol concentrations can be low enough to affect cloud
formation and structure, and it has been hypothesized that, in some instances, concentrations can drop below some critical value needed to maintain a cloud. We use observations from a Department of Energy ARM site on the northern slope of Alaska at Oliktok Point (OLI), the Arctic Summer Cloud Ocean Study (ASCOS) field campaign in the high Arctic Ocean, and the Integrated Characterisation of Energy, Clouds, Atmospheric state, and Precipitation at Summit – Aerosol Cloud Experiment (ICECAPS-ACE) project at the NSF (National Science Foundation) Summit Station in Greenland (SMT) to identify one case per site where Arctic boundary layer clouds dissipated coincidentally with a decrease in surface aerosol concentrations. These cases are used to initialize idealized large eddy simulations (LESs) in which aerosol concentrations are held constant until, at a specified time, all aerosols are removed instantaneously – effectively creating an extreme case of aerosol-limited dissipation which represents the fastest a cloud could possibly dissipate via this process. These LESs are compared against the observed data to determine whether cases could, potentially, be dissipating due to insufficient aerosol. The OLI case's observed liquid water path (LWP) dissipated faster than its simulation, indicating that other processes are likely the primary drivers of the dissipation. The ASCOS and SMT observed LWP dissipated at similar rates to their respective simulations, suggesting that aerosol-limited dissipation may be occurring in these instances. We also find that the microphysical response to this extreme aerosol forcing depends greatly on the specific case being simulated. Cases with
drizzling liquid layers are simulated to dissipate by accelerating precipitation when aerosol is removed while the case with a non-drizzling liquid layer dissipates quickly, possibly glaciating via the Wegener–Bergeron–Findeisen (WBF) process. The non-drizzling case is also more sensitive to ice-nucleating particle (INP) concentrations than the drizzling cases. Overall, the simulations suggest that aerosol-limited cloud dissipation in the Arctic is plausible and that
there are at least two microphysical pathways by which aerosol-limited dissipation can occur.
Volcanic stratospheric sulfur injections and aerosol optical depth during the Holocene (past 11 500 years) from a bipolar ice-core array
Authors: Sigl Michael , Toohey Matthew , McConnell Joseph R. , Cole-Dai Jihong , Severi Mirko 
Published: July 2022

Abstract. The injection of sulfur into the stratosphere by volcanic eruptions is the
dominant driver of natural climate variability on
interannual to multidecadal timescales. Based on a set of continuous sulfate
and sulfur records from a suite of ice cores from Greenland and Antarctica,
the HolVol v.1.0 database includes estimates of the magnitudes and
approximate source latitudes of major volcanic stratospheric sulfur
injection (VSSI) events for the Holocene (from 9500 BCE or 11 500 years BP to
1900 CE), constituting an extension of the previous record by 7000 years.
The database incorporates new-generation ice-core aerosol records with a
sub-annual temporal resolution and a demonstrated sub-decadal dating accuracy
and precision. By tightly aligning and stacking the ice-core records on the
WD2014 chronology from Antarctica, we resolve long-standing inconsistencies
in the dating of ancient volcanic eruptions that arise from biased (i.e.,
dated too old) ice-core chronologies over the Holocene for Greenland. We
reconstruct a total of 850 volcanic eruptions with injections in excess of 1 teragram of sulfur (Tg S); of these eruptions, 329 (39 %) are located in the low latitudes with bipolar
sulfate deposition, 426 (50 %) are located in the Northern Hemisphere extratropics (NHET) and 88 (10 %) are located in the Southern Hemisphere extratropics (SHET). The spatial distribution of the reconstructed eruption locations
is in agreement with prior reconstructions for the past 2500 years. In
total, these eruptions injected 7410 Tg S into the
stratosphere: 70 % from tropical eruptions and 25 % from NH
extratropical eruptions. A long-term latitudinally and monthly resolved
stratospheric aerosol optical depth (SAOD) time series is reconstructed from
the HolVol VSSI estimates, representing the first Holocene-scale
reconstruction constrained by Greenland and Antarctica ice cores. These new
long-term reconstructions of past VSSI and SAOD variability confirm evidence
from regional volcanic eruption chronologies (e.g., from Iceland) in showing
that the Early Holocene (9500–7000 BCE) experienced a higher number of
volcanic eruptions (+16 %) and cumulative VSSI (+86 %) compared with
the past 2500 years. This increase coincides with the rapid retreat of ice
sheets during deglaciation, providing context for potential future increases
in volcanic activity in regions under projected glacier melting in the 21st
century. The reconstructed VSSI and SAOD data are available at https://doi.org/10.1594/PANGAEA.928646 (Sigl et al., 2021).
The role of cyclones and potential vorticity cutoffs for the occurrence of unusually long wet spells in Europe
Authors: Röthlisberger Matthias , Scherrer Barbara , de Vries Andries Jan , Portmann Raphael 
Published: July 2022

Abstract. The synoptic dynamics leading to the longest wet spells in Europe are so far poorly investigated despite these events' potentially large societal impacts. Here we examine the role of cyclones and potential
vorticity (PV) cutoffs for unusually long wet spells in Europe, defined as
the 20 longest uninterrupted periods with at least 5 mm daily accumulated
precipitation at each ERA-Interim grid point in Europe (this set of spells
is hereafter referred to as S20). The S20 occur predominantly in summer over the eastern continent, in winter over the North
Atlantic, in winter or fall over the Atlantic coast, and in fall over the
Mediterranean and European inland seas. Four case studies reveal distinct
archetypal synoptic storylines for long wet spells: (a) a 7 d wet
spell near Moscow, Russia, is associated with a single slow-moving
cutoff–cyclone couple; (b) a 15 d wet spell in Norway features a total of
nine rapidly passing extratropical cyclones and illustrates serial cyclone
clustering as a second storyline; (c) a 12 d wet spell in Tuscany, Italy,
is associated with a single but very large cutoff complex, which is
replenished multiple times by a sequence of recurrent anticyclonic wave
breaking events over the North Atlantic and western Europe; and (d) a 17 d
wet spell in the Balkans features intermittent periods of diurnal convection in an environment of weak synoptic forcing and recurrent passages of cutoffs
and thus also highlights the role of diurnal convection for long wet spells
over land. A systematic analysis of cyclone and cutoff occurrences during
the S20 across Europe reveals considerable spatial variability
in their respective role for the S20. For instance, cyclones
are present anywhere between 10 % and 90 % and cutoffs between 20 % and 70 % of the S20 time steps, depending on the geographical region. However, overall both cyclones and cutoffs appear in a larger number and at a higher rate during the S20 compared
to climatology. Furthermore, in the Mediterranean, cutoffs and cyclones
are significantly more persistent during the S20 compared to
climatology. Our study thus documents for the first time the palette of
synoptic storylines accompanying unusually long wet spells across Europe,
which is a prerequisite for developing an understanding of how these events
might change in a warming climate and for evaluating the ability of climate
models to realistically simulate the synoptic processes relevant to these
events.
Akupuntur Dalam Mengurangi Nyeri Dan Menurunkan Tekanan Darah Pasien Hipertensi
Authors: Suryanda  , Rustati Nelly 
Published: July 2022

Jumlah penyandang hipertensi terus meningkat setiap tahunnya, diperkirakan pada tahun 2025 akan ada 1,5 Miliar orang yang terkena hipertensi, akupuntur sebagai salah satu terapi alternative perlu dilihat sejauhmana hubungannya dalam menurunkan tekanan darah dan mengurangi persepsi nyeri. Penelitian dilaksanakan diwilayah kerja UPTD Puskesmas sukaraya tahun 2021. Dari data 86 orang yang menjalankan terapi akupuntur didapatkan sebanyak 45 sampel, sesuai kriteria hipertensi dan mengalami nyeri. Hasil penelitian setelah dilakukan akuputur, sebanyak 26 (57,8%) pasien menyatakan nyeri berkurang dan 19 (42,2%) orang berkata belum berkurang atau bertambah nyeri. Pasien yang mengalami penurunan tekanan darah setelah dilakukan akupuntur sebesar 31 orang (68,9%) dan yang tidak mengalami penurunan tekanan darah sebanyak 14 orang (31,1%). Hasil analisis hubungan akupuntur dalam menurunkan tekanan darah dan mengurangi nyeri dengan Chi-square, didapatkan angka 0,091 maka disimpulkan tidak ada hubungan bermakna. Penggunaan akupuntur dalam menurunkan tekanan darah dan mengurangi nyeri relative berguna tetapi perlu penanganan dan penelitian lebih lanjut untuk lebih meningkatkan efektifitas akupuntur.
Awareness of risks and complications of obesity in school going children
Authors: Taib Daud Jabbar , Younas Ayesha , Afaq Zain , Bahadur Sher , Afridi Imtiaz , Ahmad Rauf , Saud Usama 
Published: July 2022

Introduction: Childhood obesity is increasing in Pakistan, and it mostly occurs when there is more energy-rich food intake and not enough physical activity. Not realizing the dangers, parents often encourage the children to eat as much as possible and whatever is preferred by the child.
Objective: To assess the level of awareness of school-going children of Peshawar about the risks and complications of childhood obesity.
Materials & Methods: It was a descriptive cross-sectional study conducted in two private schools of Peshawar, Khyber Pakhtunkhwa, from April - July 2017, where data were collected through consecutive sampling of all available children of classes 7 to 10. Questionnaires contained open and closed-ended questions. Data were entered in SPSS 22 and Microsoft Excel, and analyzed for descriptive statistics.
Results: Majority of children (83%) were aware of the meaning of obesity and 72% knew that obesity is an illness, and it can cause problems in their bodies. Most children (65%) thought obesity caused high cholesterol levels in the body, and 56% children thought that obesity could be controlled by exercise.
Conclusion: Majority of the school children were aware of obesity and its risks and complications.
Diagnostic accuracy of MRI in mesorectal fascial involvement
Authors: Saeed Sidra , Muhammad Ambareen , Akhtar Naheed , Adil Zeenat , Majid Abdul 
Published: July 2022

Introduction: Evaluation of mesorectal fascial involvement in rectal cancer is of prime importance in decision making regarding treatment options.
Objective: To determine diagnostic accuracy of Magnetic Resonance Imaging (MRI) in detection of mesorectal fascia involvement in rectal carcinoma patients using histopathology as gold standard.
Materials & Methods: A comparative study was performed in the Radiology department of Kuwait Teaching Hospital, Peshawar, from January 1, 2021, till December 31, 2021, on 155 patients of rectal carcinoma who had their MRI done for rectal cancer on 0.3T MR Machine. Surgical findings like mesorectal fascial involvement by the tumor, presence/absence of pelvic lymph nodes within 5mm of mesorectal fascia, and staging of the tumor were included as variables. Specimens were sent in formalin to a histopathologist, and findings were considered for comparison. Data were analyzed using SPSS version 23.
Results: Out of 155 patients, 82 patients showed mesorectal fascial involvement whereas 73 patients were Circumferential Resection Margin (CRM) negative. Out of these 7 patients were falsely labeled as CRM positive on MRI, whereas 9 patients were falsely labeled as CRM negative on MRI. Positive predictive value was 91%, with negative predictive value of 88%. Diagnostic accuracy was 89.6%. Sensitivity was 89% whereas specificity was 90.4%.
Conclusion: MRI has high sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy for detection of mesorectal fascial involvement in case of rectal carcinoma taking 5mm as cut off value.
Egen stemme
Authors: Jordet Maria , Gullestad Siri Erika 
Published: July 2022

A voice of one’s own – singing as an individuation process
Background: Vocalizing is key to the individual’s psychological development, and singing can be vital in creating a sense of community. There is, however, scant knowledge on how singing can contribute to finding a voice of one’s own in youth. Method: We explored the impact of singing in a qualitative study with Bangladeshi village girls learning folk songs. The data material includes in-depth interviews with 10 girls coming from rural areas where girls often get married off early. Results: Analysis resulted in three main themes: 1) To become oneself through singing, 2) To comfort oneself through singing, and 3) To get to know oneself through the teacher. Conclusion: Findings demonstrate that the girls discover and integrate affect through singing, giving them courage to stand up for themselves. The paper argues that singing may be a driving force in psychological individuation processes towards increased autonomy.
Keywords: voice, folk song traditions, singing, individuation, affect integration
ENSINO POR INVESTIGAÇÃO NO ENSINO DE BIOLOGIA: UMA REVISÃO SISTEMÁTICA DOS EVENTOS ENEBIO E ENPEC
Authors: Santana Ana Júlia Soares , Araújo Mota Maria Danielle , Lorenzetti Leonir 
Published: July 2022

RESUMO
O presente artigo é o produto de uma Revisão Sistemática de Literatura (RLS) sobre o Ensino por Investigação no Ensino de Biologia, cujo o objetivo é identificar as principais características do Ensino por Investigação no Ensino de Biologia nos trabalhos empíricos publicados em dois eventos nacionais de Ensino de Ciências e Ensino de Biologia, haja vista as contribuições que as práticas investigativas podem oferecer, discutindo os dados extraídos das produções analisadas a partir das concepções e pressupostos de pesquisadores que vêm explorando esta temática. A metodologia utilizada seguiu as seguintes etapas para construção da RSL: a formulação do problema, a escolha da base de dados, escolha das palavras chaves, coleta e armazenamento dos trabalhos, delimitação e aplicação dos critérios de exclusão e inclusão, análise dos artigos e trabalho com os dados. O levantamento foi realizado tendo como base de dados os anais do Encontro Nacional de Ensino de Biologia (ENEBIO), compreendidos entre 2010 e 2018, e do Encontro Nacional de Pesquisa em Educação em Ciências (ENPEC), de 2011 a 2019, sendo analisados 14 trabalhos do ENEBIO e 13 trabalhos do ENPEC. Os principais resultados demonstram que a abordagem foco deste trabalho se apresenta de forma pouco expressiva, assim como discute as características principais do Ensino por Investigação apresentado nos trabalhos analisados, que foram: temas biológicos, objeto de estudo e elementos do Ensino por Investigação.
Impact of mantra yoga and hatha yoga practices on stress and self-confidence among middle aged men
Authors: Sriram R. Vadamalai , Rajashekaran M. 
Published: July 2022

The purpose of the study is to investigate the changes of inspiratory reserve volume due to mantra yoga and hatha yoga practices among middle aged men. To achieve the purpose of this study, the study was restricted to 30 middle aged men only. The subject were taken, from in and around Annamalai University, Annamalai Nagar, Chidambaram, Tamil Nadu, India and their age ranged between 30 to 45 years only. The subjects were divided into two groups namely combination of mantra yoga and hatha yoga group, and the control group only. The groups were confined to 15 subjects each only. The training group were confined to participate in the training for a period of twelve weeks (five days per week) only. Prior to and after the training period the subjects were tested for, stress and self-confidence. stress was assessed by using Everly and Giordano stress scale and self-confidence assessed by using Rekha Agnihotry self-confidence Questionnaire. The statistical tool were used for the present study is Analysis of covariance (ANCOVA). The result of the study was a significant altered on stress and self-confidence after twelve weeks of combined yogic practices. However the different was favour of experimental groups.
Cloning and expression of native streptokinase in E. coli BL21(DE3)
Authors: Hameed Almuthana K. , Al-Hayawi Anas Y. , Buniya Harith K. 
Published: July 2022

Streptokinase (SK) is a potent plasminogen activator naturally produced by beta-hemolytic streptococcus bacteria. Streptokinase is one of the most important thrombolytic agents that was frequently employed treatment of myocardial infarction. In this study, we amplified the SK gene isolated from Streptococcus pyogenes. The sequence of SK was recorded in the NCBI database. The Accession number of the SK sequence was LC625519.1. The SK gene was digested by EcoR1 and Hindlll, ligated with the linear pGEM®-3Zf (+) vector, and then introduced into an expression host E. coli BL21(DE3). For the production of the SK protein, we induced by 1mM IPTG. SDS-PAGE was used for the evaluation of the streptokinase synthesis with a molecular weight of around 47 kDa. Using the casein lysis method and the in vitro clot lysis assay, the activity of native SK was assessed. The native SK has clot lysis activity and a clear zone in the casein plate.
O funcionamento das noções de intertextualidade e interdiscurso na textualidade de um meme
Authors: Freitas Wendell Robertt Silva , Fernandes Carolina 
Published: July 2022

O presente artigo realiza uma análise da materialidade linguística e sócio-histórica de um texto do tipo meme, publicado em uma página humorística do Facebook. Como pressuposto teórico, o artigo apoia-se na vertente materialista da Análise do Discurso (AD), através da qual podemos e refletir sobre como as noções de interdiscurso e intertextualidade mobilizadas para produzir efeitos de sentidos ao meme. A partir da análise, buscamos compreender como a materialidade textual, constituída por significantes verbais e visuais, estabelece uma relação com a materialidade histórica da construção social do sujeito-homem, ou seja, de que maneira o meme estabelece uma discursividade sobre as determinações ideológicas que constituem a forma-sujeito homem. Por fim, o artigo propõe a discussão acerca do meme como sendo uma possível materialização de um efeito de resistência à ideologia dominante que imputa padrões de comportamentos sociais. Dessa forma, observa-se que o meme, através da produção do efeito humorístico, funciona discursivamente de modo a questionar a estabilidade dos sentidos para a construção do imaginário de sujeito-homem.
Imagens da Matinta Perera em contexto amazônico
Authors: Fares Josebel Akel 
Published: July 2022

Este estudo apresenta uma pesquisa sobre a matinta perera, personagem da mítica amazônica. A urdidura do artigo compreende o processo de trabalho e a síntese das conclusões. A primeira parte apresenta os aspectos metodológicos da pesquisa, como as escolhas da personagem, do local da pesquisa, do corpus de narrativas, da composição das cenas, e, posteriormente, estuda o narrador, performance e repertórios. A parte seguinte apresenta o estudo que envolve as configurações do mito, [matintas aéreas e terrestres]; a leitura do tempo e do espaço da epifania, os elementos mágicos que protegem os locais e as pessoas da aparição, o fado e o perdão e, por fim, o assobio, como elementos variantes e invariantes. As narrativas estudadas fazem parte do corpus do Projeto “O imaginário nas formas narrativas orais da Amazônia paraense” (IFNOPAP/UFPA), e centrou-se em Bragança, município do nordeste paraense.
O narrador de A Bagaceira e a denúncia social
Authors: Lima Elaine Aparecida 
Published: July 2022

Este trabalho toma por pressuposto a linguagem como expressão ideológica, cujas características ultrapassam o plano da dicção, alçando as relações que os homens conservam com o mundo. Procura-se verificar em que medida o narrador, da obra paraibana A bagaceira, impede o resplandecer da cultura popular nordestina, sobrepondo a ela suas convicções e seus objetivos. Trata-se de um estudo que analisa, principalmente à luz da teoria dialógica de Bakhtin, como se moldam as vozes das personagens em prol da construção de um discurso social, cuja visão transforma o interior nordestino em um espaço marcado pelo passado, pelo regime feudal e pelo maniqueísmo. A obra de José Américo de Almeida é entendida como um exemplo de construção literária, na qual o autor, colocando-se na condição de erudito, se reconhece como possuidor do dever de salvação dos socialmente subalternos.
A senhora e a voz
Authors: Oliveira Sílvio 
Published: July 2022

Era uma vez uma senhora de belas e sinceras lições. Viajou muito, trabalhou bastante, encantou-se, reconheceu-se e foi feliz. Antes de continuar a história, é preciso dizer que vivemos um tempo de graves melancolias e dissidências subjetivas, apressadas e supérfluas. Um tempo em que a voz e as escrituras devem caber em dez, quinze minutos, quiçá, de audiências inquietas e ansiosas por suas próprias falas.
Entrevista com Doralice Alcoforado
Authors: Costa Edil Silva 
Published: July 2022

Desde que assumiu a Comissão Baiana de Folclore em 2004, a professora de Literatura Brasileira da Universidade Federal da Bahia DORALICE ALCOFORADO vem desenvolvendo um trabalho comprometido com a cultura popular aliado à proposta de repensar o termo “folclore” distanciando-se da visão muitas vezes preconceituosa que o associa a algo sem valor. Em entrevista a EDIL SILVA COSTA, ela fala de seu trabalho a frente da Comissão, da defesa da cultura popular e da programação para o mês de agosto em que se comemora o dia do folclore, próximo dia 22.
A morte visitada através da memória oral em Ponciá Vicêncio
Authors: Dionísio Dejair 
Published: July 2022

Ponciá mergulha nas perdas familiares de várias formas. Verificar como essas perdas são percebidas no texto de Conceição Evaristo - Ponciá Vicêncio passa a ser importante para poder entender o movimento da trama e o ritmo que o enunciador da à obra. Sem meias palavras, a personagem central (re) visita em vários momentos e de forma diferenciada, a sua vida através de várias simbologias, como: a parecença com o avô, histórias contadas pela ”griot” de sua comunidade, pela educação não oficial e pela memória oral.
Brasileiramente Macunaíma: a estilização do nacional
Authors: Bichuette Stela de Castro 
Published: July 2022

O artigo aborda a questão da linguagem, da oralidade, do folclore e das lendas brasileiras na obra Macunaíma, de Mário de Andrade. Pretende-se, dessa forma, a reflexão estética sobre o Modernismo brasileiro e sua materialização dentro da obra.
Biografias de escritores brasileiros em publicações portuguesas (1860-1890)
Authors: Augusti Valéria 
Published: July 2022

Nas últimas décadas do século XIX, o desconhecimento da literatura brasileira pela crítica portuguesa se torna tema constante nos periódicos lusitanos. Muito embora não haja, realmente, notícias significativas sobre os lançamentos literários dos escritores da ex-colônia, é notável a presença de notícias biográficas acerca de alguns deles em necrológios publicados na imprensa, bem como em material de finalidade escolar destinado a ambas as nações. Tendo isto em vista, o presente artigo pretende analisar algumas dessas notícias biográficas, publicadas entre as décadas de 1860 e 1890.