bluuebunny/crossref_metadata_2025 huggingface dataset:
Priabonian (upper Eocene) larger foraminifera from the Helvetic Nappes of the Alps (Western Switzerland): new markers for Shallow Benthic zones 19-20
Authors: Ferrandez-Canadell Carles , Baumgartner-Mora Claudia , Baumgartner Peter O. , Epard Jean-Luc
Published: August 2023

Here, we revise and update the biostratigraphy of larger foraminiferal assemblages in three sections of the Priabonian Sanetsch Formation in the Helvetic Nappes of theWestern Swiss Alps: The SexRouge (SE) and the Sanetsch Buvette (SA) sections in the Wildhorn Nappe Complex, and the Col des Essets (ETS) section in the most external Morcles Nappe. In the SE and SA sections, the Tsanfleuron and most of the Pierredar Limestone members of the formation are assigned to SBZ 19 (early Priabonian), while the uppermost part of the formation is assigned to SBZ 20 (late Priabonian). In the external ETS section the entire Sanetsch Formation contains assemblages characteristic of SBZ 19, suggesting an earlier, middle-late Priabonian onset of the hemipelagic Stad Formation (Globigerina Marls). Since it was established in 1998, the Shallow Benthic Zones (SBZ), a biozonation based on larger foraminifera, has been a useful tool in the biostratigraphy of the Paleogene. Biozonation proposals for the late middle-late Eocene are based mainly in biometrical subdivision of lineages of nummulitids and orthophragmines,which requiresmeasurements in oriented sections of isolated specimens. Here, we define previously unreported taxa from the Sanetsch Formation, which are considered characteristic for the Priabonian. They are easy to identify in random sections and thus useful biostratigraphical markers.We also describe a new orthophragminid genus, Virgasterocylina n. gen. (Orbitoclypeidae) characterized by the presence of rods, radial thickenings of calcite along ribs; a new species of Rotorbinella, R. epardi n. sp., and a new genus and new species of difficult suprageneric attribution, Sanetschella indeprensa n. gen., n. sp. We add the new taxa to the larger foraminiferal association characterizing the Priabonian (SBZ 19-20). The revision of the literature, together with our own sample collections revealed that these new taxa occur in Priabonian rocks from different basins in the western Tethys. Virgasterocylina n. gen. also occurs in the Caribbean bioprovince in the middle and upper Eocene. In the western Tethys, Virgasterocylina ferrandezi is subdivided into two subspecies, V. f. ferrandezi (Ozcan and Less) and V. f. lessi n. ssp., which characterize the SBZ 19 and 20 biozones respectively.
A Clinical Audit: Ventriculoperitoneal Shunt for Patients with Hydrocephalus
Authors: Perdawd Khawand Saeed
Published: August 2023

Purpose: Hydrocephalus, abnormal accumulation of CSF in the ventricles, is one of the most common diseases of the brain. Ventriculoperitoneal shunting is one of the commonest procedures for management of hydrocephalus. Assessment and evaluation of the clinical outcome, following VP shunt, should be carried out to decrease rates of complications of this procedure. Clinical audit plays a vital role in identifying and developing effective methods for improving patient care. This paper sheds light on 37 neurosurgical patients with hydrocephalus who underwent ventriculoperitoneal shunt surgery. Our aim was to identify defects in steps in management of hydrocephalus by VP shunt from time of admission to discharge.

Methodology: In this audit study 37 patients with hydrocephalus were selected between November, 2021 and December, 2022 at West Erbil emergency hospital and Erbil teaching hospital. VP shunt surgery was performed for them. Information was gathered from patient records, diagnostic imaging, and operation notes, and subsequent clinical follow-up evaluations were carefully analyzed and reviewed. The gathered data encompassed demographic details, clinical manifestations, radiological studies, reasons for surgery, operative findings, and complications associated with the shunt.

Findings: The prevalent causes observed were congenital hydrocephalus (45.9%), posterior fossa tumors (13.5%), and post meningitis hydrocephalus (18.9%). A right-sided VP shunt utilizing a medium-pressure valve system emerged as the most prevalent treatment modality. Three patients exhibited symptoms and signs indicative of shunt infection. Additionally, one patient experienced an epidural hematoma at the site of the burr hole.

Unique contribution to theory, practice and policy: Patients with hydrocephalus and undergoing VP shunt surgery should be evaluated carefully and every step from time of admission to discharge is crucial in decreasing the complications which are associated with this surgery.
MARKETING TURÍSTICO, VÍA PARA PROMOCIONAR EL TURISMO EN EL ÁREA DE COCLESITO
Authors: Pedreschi Caballero Ricardo Jesús , Nieto Lara Oris Mercedes
Published: August 2023

Este artículo trata de identificar la importancia y estrategias de marketing que pueden utilizar las empresas o negocios para promocionar un destino turístico a un público objetivo. El objetivo principal de la investigación es dar a conocer a los turistas los diferentes lugares turísticos que ofrece la comunidad de Coclesito ya que como sabemos no es un lugar muy conocido en lo referente al turístico interno. El propósito del marketing turístico es identificar, categorizar y evaluar la demanda latente o real de los productos y servicios que una empresa proporciona o puede proporcionar para enfocar los esfuerzos de desarrollo, producción, marketing y ventas de un destino turístico. Un aspecto de gran importancia para marketing turístico es el de informar a los clientes potenciales sobre los beneficios de visitar un lugar en particular y al mismo tiempo brindarles opciones de viaje, por lo que resulta necesario poner en contacto a los interesados ??con personas capacitadas para brindarles un servicio de calidad.
INDIGENOUS PUBLIC MANAGEMENT IN BRAZIL
Authors: Baggio Di Sopra Fernando Ernesto , Tupari de Araujo Rosane Taynara
Published: August 2023

This article addresses aspects related to indigenous public management in Brazil, from the perspective of the ethics of understanding, theorized by Edgar Morin. Assuming that many indigenous communities have not yet been guaranteed possession of their ancestral territories, in line with the provisions of Article 231 of the Federal Constitution, this academic work aims to identify factors that may be impacting the effective guarantee of the territorial rights of native peoples. As a methodological parameter for quantitative analysis, it was decided to systematize data referring to the demarcation of indigenous lands in each government after the 1985 re-democratization. freely appointed positions within the scope of the National Foundation for Indigenous Peoples (Funai). Considering that all the recent presidents of Brazil made political concessions to the agribusiness caucus in the Federal Congress with the aim of making governability viable, it can be concluded that none of the last indigenous public administrations acted effectively in the sense of proceeding with the fulfillment of the territorial demands of the indigenous peoples, as such a measure is directly opposed to the interests of the congressional agribusiness group. Considering that ethics is configured as one of the fundamental pillars on which public management is based, this article sought to identify possible uses of private objectives, alien to the foundations of state indigenism, in the appointment of Funai leaders, who tend to overlap their particular interests to the public function of the indigenist agency.
REVIEW ABOUT TEACHERS WHO TRANSFORM MULTIMODAL LEARNING ENVIRONMENTS
Authors: Wanderley Marques Dantas Jacqueline
Published: August 2023

The book “Teachers transforming multimodal learning environments: language teaching projects” clearly and didactically presents a new look at language teaching in Basic Education, proposing pedagogical strategies and creative activities based on multimodal learning environments with the help of digital technologies in the classroom context.
EDUCAÇÃO FÍSICA E RECOMPOSIÇÃO DA APRENDIZAGEM NA RETOMADA DO ENSINO PRESENCIAL EM UM MUNICÍPIO DO CARIRI CEARENSE
Authors: Silva Lourenço Nunes Batista
Published: August 2023

O artigo contempla as questões próprias da educação (recomposição da aprendizagem) em meio ao processo de retomada do ensino presencial subsequente a maior catástrofe em saúde mundial contemporânea, a pandemia de COVID-19, de maneira específica abordando o trabalho de docentes do ensino fundamental II que atuam na educação física escolar de Juazeiro do Norte - CE. O objetivo do presente estudo foi identificar quais as estratégias metodológicas utilizadas pelos(as) professores(as) de educação física para atender a necessidade de recomposição da aprendizagem em meio à retomada do ensino presencial, utilizando-se de uma metodologia quanti-qualitativa. Foram apontadas cinco metodologias utilizadas com o intuito de atender às necessidades próprias da recomposição: revisão de conteúdos, reforço escolar (desenvolvido de maneira interdisciplinar), ludicidade, avaliação diagnóstica e atividades de cooperação.
WALKING ABILITY IN PATIENTS WITH PERIPHERAL ARTERIAL OCCLUSIVE DISEASE AND ITS ASSOCIATION WITH SOCIODEMOGRAPHIC AND CLINICAL INDICATORS
Authors: Streb Anne Ribeiro , Martins Júlia Nunes , Bertuol Cecília , Mendes Gerage Aline , Del Duca Giovani Firpo
Published: August 2023

The aim of this study was to verify the association between sociodemographic and clinical indicators with the walking ability in patients with peripheral arterial occlusive disease. A cross-sectional study examined a non-probabilistic sample of patients with PAOD. Walking ability was determined using the Walking Impairment Questionnaire. Sociodemographic and clinical indicators were explored. Spearman correlation and crude and adjusted linear regression were used in the analysis. Forty individuals (age 62.8±9.7 years) participated in the study. Only disease severity showed a strong negative correlation with total walking ability score (r=-0.75) and its items: walking distance (r=-0.73), walking speed (r=-0.69), and climbing stairs (r=-0.69). After adjustment, higher educational level (β=13.0; p=0.047) and disease severity (β=12.7; p=0.001) were associated with walking ability (R²=0.50; VIF:1.33; p≤0.001). Patients with PAOD have impairments in their walking ability, which is related to low educational level and increased severity of the diseaseO objetivo deste estudo foi verificar a associação entre indicadores sociodemográficos e clínicos com a capacidade de locomoção em pacientes com doença arterial obstrutiva periférica (DAOP). Um estudo transversal examinou uma amostra não probabilística de pacientes com DAOP. A capacidade de locomoção foi determinada usando o Walking Impairment Questionnaire. Foram explorados indicadores sociodemográficos e clínicos. Correlação de Spearman e regressão linear bruta e ajustada foram utilizadas na análise. Quarenta indivíduos (idade 62,8±9,7 anos) participaram do estudo. Apenas a gravidade da doença apresentou forte correlação negativa com o escore total da capacidade de locomoção (r=-0,75) e seus itens: distância percorrida (r=-0,73), velocidade da caminhada (r=-0,69) e subir escadas (r=-0,69). Após ajuste, maior escolaridade (β=13,0; p=0,047) e gravidade da doença (β=12,7; p=0,001) associaram-se à capacidade de locomoção (R²=0,50; VIF:1,33; p≤0,001). Pacientes com DAOP apresentam prejuízos na capacidade de locomoção, o que está relacionado com a baixa escolaridade e ao aumento da gravidade da doença.
Causes of changes in male circumcision rite among the Ameru of Imenti South Sub-County, Meru County, Kenya (1950 – 2016)
Authors: Kathio Isaac , Kagema Dickson Nkonge , Kithinji Caroline M
Published: August 2023

The purpose of this study was to establish the causes of changes from the traditional method of circumcision to the modern male initiation rite of circumcision among the Ameru of Imenti South Sub-County, Kenya. The period considered was between 1950 and 2016. The topic has been difficult to penetrate because of the secrecy of the traditional circumcision rite. The study used Modernisation Theory (MT) as a tool for analysis. Methodologically, the study used a descriptive research design. The study was carried out among the Ameru of Imenti South Sub-County, because of the modern changes in male initiation rite of circumcision. ata was collected from primary, archival and secondary sources. Interview schedules focus group discussions and observation. The target population was 61,091 adult men from Imenti South Sub-County, and the sample size comprised 50 randomly selected respondents. The main research findings were that changes in the male initiation rite of circumcision were caused by urbanisation, formal schooling, the establishment of health facilities and colonisation, all of which were intended to Christianise the operations. This research contributes to the wider comprehension of the male initiation rite of circumcision among the Ameru of Imenti South Sub-County between 1950 and 2016. The study contributes to the Ameru historiography.
O triste sonho do Eldorado contemporâneo: o impacto do garimpo ilegal na Terra Indígena Kayapó – PA
Authors: Amaral Alberto Da Silva , López Claudia Leonor
Published: August 2023

O presente trabalho apresenta os resultados obtidos durante a pesquisa desenvolvida no MPEG, onde se buscou compreender os impactos socioculturais gerados pela atividade ilegal do garimpo na terra indígena Kayapó. A partir do levantamento bibliográfico e documental, com abordagem qualitativa, e enfoque histórico e socioantropológico, buscamos compreender como a atividade garimpeira tem sido uma máquina propulsora de destruição da Amazônia, e isto pode ser observado ao longo da história da prática do garimpo ilegal na Terra Indígena Kayapó, situada na região sudeste do Estado do Pará, no Brasil. A relação do garimpo com a consequente desestruturação do modo de vida e os impactos sobre o bem-estar dos povos indígenas na América são coetâneas ao próprio processo de colonização do continente. Desde o início da invasão das terras americanas pelos Europeus, o desejo de rápida riqueza através do extrativismo de ouro, prata, de outros metais e pedras preciosas tem impulsionado processos de extermínio e desterritorialização dos povos que aqui viviam. Neste sentindo buscamos compreender que a colonização não se configura apenas como investida do passado, pois se atualiza no tempo pela colonialidadedo poder, levada a cabo pelas designações do sistema moderno/colonial, que age nos diversos aspectos da vida social, envolvendo as relações de poder nas suas múltiplas dimensões.
Planejamento territorial e assessoria jurídica popular: questões e percepções desde práticas e projetos na luta pela terra/território
Authors: Soares Gustavo Steinmetz , Gómez Jorge Ramon Montenegro
Published: August 2023

A mediação jurídica dos conflitos por terra e território no Paraná vivenciadas pelo Coletivo de extensão e pesquisa PLANTEAR (Planejamento Territorial e Assessoria Jurídica Popular) da Universidade Federal do Paraná (UFPR) têm se caracterizado por uma ação territorial, interdisciplinar e articulada com demandas de movimentos sociais. A atuação do coletivo tem possibilitado caminhos outros no tratamento desses conflitos, no marco da Campanha Despejo Zero, co-elaborando junto a movimentos do campo e da cidade propostas de planejamento territorial popular como estratégia de consolidação de comunidades em defesa dos territórios que ocupam. O objetivo deste trabalho é compartilhar algumas experiências realizadas entre 2019 e 2022. destacando a subversão de instrumentos técnicos de análise espacial para produção de documentos para processos jurídicos. Para tanto, se descrevem alguns estudos realizados a fim de compartilhar impressões e questões que podem mostrar uma potencialidade na luta pela terra e território. Embora ainda reféns da disputa da interpretação das normas, algumas ações têm desafiado essa normatividade no tratamento e mediação dos conflitos, apontando caminhos possíveis de resoluções em favor das comunidades.
Lipid Panel Screening for Adults Living With Chronic Conditions
Authors: Brett Kendra , MacDougall Danielle
Published: August 2023

Abnormal blood lipid levels are associated with increased risk of cardiovascular disease, and lipid panel screening can help health care providers make treatment decisions for adults living with chronic conditions.

We did not find any studies that met our inclusion criteria on the diagnostic test accuracy or clinical utility of nonfasting lipid panel screening for adults living with chronic conditions.

Two guidelines recommend a nonfasting lipid panel for the initial screening for cardiovascular disease risk. A fasting lipid panel is recommended if triglyceride levels are high.

One guideline recommends either fasting or nonfasting lipid panel screening before starting lipid modification therapy in people at risk of cardiovascular disease.
PENANAMAN NILAI K ARAKTER MELALUI KEGIATAN TAHFIDZ DI SDN 22 LINTAU BUO UTARA
Authors: Endriani Budi , Dayu Refni
Published: August 2023

This study aims to describe the cultivation of character values through tahfidz activities at SDN 22 Lintau Buo Utara. The research method used in this study is field research, with a qualitative approach. The data collection techniques used are observation, interviews, and documentation. Source of research data from the principal and Teacher tahfidz of the Qur'an. The data analysis technique used is an inductive data analysis technique. The validity of the data used is trianggulation. Research Results are 1) The methods used in the implementation of the cultivation of character values are habituation, supervision and attention, the methods used in the activities of tahfidz of the Qur'an i.e. the sima'i method. 2) The character values instilled through Tahfidz activities are values, religious and responsibility this can be seen from the attitudes of students who carry out duha prayers, and zuhur congregational prayers before tahfidz activities are carried out. 3) The form of implementation of the cultivation of character values through activities, namely with the addition of extracurricular tahfidz in Utaras, 4) Synergy of parents towards the cultivation of character values in students through activities, Tahfidz Al-Qur'an can be seen communication and coordination in parents at home. Obstacles faced by some students who do not like to read the Qur'an.
PEMANFAATAN GREEN HOUSE KEMBANG HARAPAN UNTUK MENINGKATKAN KEPEDULIAN LINGKUNGAN DI MI MA’ARIF GONDANG WATUMALANG
Authors: Lindi Putri , Haryanto Sri , Agus Faisal Vava Imam
Published: August 2023

This study aims to determine the application of the Green House program in science lessons in increasing student awareness of the environment. Green House is a controlled plant growing environment. The development of green houses for horticultural cultivation is very important as a guarantor for the success of growing from environmental influences such as temperature, air humidity, sun intensity, and pests and diseases. The use of greenhouses in plant cultivation is one way to provide an environment that is closer to the optimum conditions for plant growth. The research method used is a qualitative Field Research method, with data collection techniques carried out through observation, interviews and documentation. The analysis techniques are in the form of data collection, data reduction, data display and drawing conclusions. Researchers will search and find data broadly and in-depth regarding the method of utilizing the hope flower green house to increase environmental awareness for the upper class of MI Ma'arif Gondang Watumalang. The use of the Green House is a flower of hope to increase environmental awareness for the upper-class MI ma'arif Gondang Watumalang. The results of this study show an increase as marked by disposing of garbage in its place, picketing the yard of community service for all school residents, and sorting organic or non-organic waste.
O USO DAS TECNOLOGIAS DIGITAIS NO ESTÁGIO SUPERVISIONADO II DO CURSO DE LICENCIATURA EM COMPUTAÇÃO: RELATOS DE EXPERIENCIAS
Authors: Souza Marcilene Rodrigues de , Freitas Francislene Amorim de , Santos Ecrisciomara de Souza , Libório Filho João da Mata , Barbosa Luiz Sérgio de Oliveira
Published: August 2023

Este artigo relata as experiências vivenciadas durante o Estágio Supervisionado II no Curso de Licenciatura em Computação da Universidade do Estado do Amazonas. O objetivo principal do estágio foi proporcionar aos alunos conhecimentos sobre conceitos e funções de softwares de tecnologias educacionais para melhorar a compreensão e interação no processo de ensino-aprendizagem na disciplina de Cultura Digital. A pesquisa teve abordagem qualitativa e foi baseada em estudos sobre estágio supervisionado e uso de softwares educativos. As atividades foram elaboradas a partir da problemática observada durante o período de observação nas turmas do ensino médio, com o apoio do professor supervisor de estágio. Os participantes da pesquisa foram os alunos das 1ª séries do ensino médio. Foi elaborado um plano de ação para utilizar o laboratório de informática e aplicar atividades no Microsoft Power Point, com o objetivo de apresentar as ferramentas e funcionalidades do software. Os alunos foram desafiados a elaborar suas apresentações acadêmicas em formato de Power Point e expor em sala de aula. Os resultados obtidos foram gerados e discutidos com o professor titular. A utilização de tecnologia nas escolas abre opções para ensinar tecnologias educacionais digitais em qualquer área de conhecimento. A experiência do estágio supervisionado II proporcionou aos alunos a oportunidade de aplicar os conhecimentos adquiridos em sala de aula de forma prática e aprimorar suas habilidades tecnológicas.
MONITORIZAÇÃO FARMACOTERAPÊUTICA PARA O TRATAMENTO DE PRÉ-EXPOSIÇÃO AO HIV
Authors: Gonçalves Hellen do Socorro da Silva , Castro Josielen Lisbôa , Rosário Maria do Socorro Silveira do , Rivera Juan Gonzalo Bardález
Published: August 2023

O Vírus da Imunosuficiência Humana (HIV) é um grave problema mundial. Ele infecta as células do sistema imunológico, podendo levar ao desenvolvimento da Síndrome da Imunodeficiência Adquirida (SIDA). A profilaxia Pré-Exposição ao HIV, consiste na utilização de antirretrovirais, antes da exposição ao vírus do HIV a fim de reduzir o risco de infecção pelo mesmo. A monitorização farmacoterapêutica é definida como “especialidade clínica multidisciplinar que visa melhorar a assistência prestada ao paciente, ajustando individualmente a dose de medicamentos. O objetivo do presente artigo é realizar uma revisão integrativa da literatura sobre o tema: monitorização farmacoterapêutica para o tratamento de pré-exposição ao HIV. Foi realizado um levantamento bibliográfico nas bases de dados Scielo, LILACS, LA Referência e PubMed, no período de janeiro de 2013 a julho de 2023, nos idiomas português, inglês e espanhol. A análise das publicações demonstrou que os grupos de vulnerabilidade são compostos por gays e outros homens, pessoas trans, profissionais do sexo e sorodiscordantes para o HIV. As principais avaliações laboratoriais, que devem ser feitos, durante o uso da PrEp, são: teste para HIV, teste para sífilis, identificação de outras IST (clamídia e gonococo), teste para hepatite B, teste para hepatite C, monitoramento da função renal, Clearance de creatinina, dosagem de ureia e creatinina sérica, avaliação de proteinuiria, monitoramento da função hepática (enzimas hepáticas AST/ ALT) e teste de gravidez. O papel do farmacêutico na monitorização farmacoterapêutica se baseia nas condições clínicas do paciente. Conclui-se que, há poucas informações na literatura que abordem dados laboratoriais e a monitorização farmacoterapêuitica de pacientes que fazem uso da PrEP, durante o período de tratamento medicamentoso.
The important contribution of secondary formation and biomass burning to oxidized organic nitrogen (OON) in a polluted urban area: insights from in situ measurements of a chemical ionization mass spectrometer (CIMS)
Authors: Cai Yiyu , Ye Chenshuo , Chen Wei , Hu Weiwei , Song Wei , Peng Yuwen , Huang Shan , Qi Jipeng , Wang Sihang , Wang Chaomin , Wu Caihong , Wang Zelong , Wang Baolin , Huang Xiaofeng , He Lingyan , Gligorovski Sasho , Yuan Bin , Shao Min , Wang Xinming
Published: August 2023

Abstract. To investigate the sources and formation mechanism of
oxidized organic nitrogen (OON), field measurements of OON were conducted
using an iodide-adduct chemical ionization mass spectrometer equipped with a
Filter Inlet for Gases and AEROsols (FIGAERO-CIMS) during fall of 2018 in
the megacity of Guangzhou, China. Using levoglucosan as a tracer of biomass
burning emissions, the results show that biomass burning (49±23 %)
and secondary formation (51±23 %) accounted for comparable
fractions to the total particle-phase OON (pOON) but 24±25 % and 76±25 % to the gas-phase OON (gOON), respectively, signifying
the important contribution of biomass burning to pOON and secondary
formation to gOON in this urban area. Calculations of production rates of
gOON indicated that hydroxyl radical (42 %) and nitrate radical (NO3)
(49 %) oxidation pathways potentially dominated the secondary formation of
gOON. A high concentration of NO3 radicals during the afternoon was
observed, demonstrating that the daytime NO3 oxidation might be more
important than the previous recognition. Monoterpenes, found to be major
precursors of secondary gOON, were mainly from anthropogenic emissions in
this urban area. The ratio of secondary pOON to Ox ([Ox] = [O3] + [NO2]) increased as a function of relative humidity and
aerosol surface area, indicating that heterogeneous reaction might be an
important formation pathway for secondary pOON. Finally, the highly oxidized
gOON and pOON with 6 to 11 oxygen atoms were observed, highlighting the
complex secondary reaction processes of OON in the ambient air. Overall, our
results improve the understanding of the sources and dynamic variation of
OON in the urban atmosphere.
Optimal estimation retrieval of tropospheric ammonia from the Geostationary Interferometric Infrared Sounder on board FengYun-4B
Authors: Zeng Zhao-Cheng , Lee Lu , Qi Chengli , Clarisse Lieven , Van Damme Martin
Published: August 2023

Abstract. Atmospheric ammonia (NH3) is a reactive nitrogen compound
that pollutes our environment and threatens public health. Monitoring the
spatial and temporal variations is important for quantifying its emissions
and depositions and evaluating the strategies for managing anthropogenic
sources of NH3. In this study, we present an NH3 retrieval
algorithm based on the optimal estimation method for the Geostationary
Interferometric Infrared Sounder (GIIRS) on board China's FengYun-4B
satellite (FY-4B/GIIRS). In particular, we examine the information content
based on the degree of freedom for signal (DOFS) in retrieving the diurnal
NH3 in East Asia, with a focus on two source regions including the North
China Plain and North India. Our retrieval is based on the FengYun
Geostationary satellite Atmospheric Infrared Retrieval (FY-GeoAIR) algorithm
and exploits the strong NH3 absorption window of 955–975 cm−1.
Retrieval results using FY-4B/GIIRS spectra from July to December 2022 show
that the DOFS for the majority ranges from 0 to 1.0, mainly depending on the thermal contrast (TC) defined as the temperature difference between the
surface and the lowest atmospheric layer. Consistent with retrievals from
low-Earth-orbit (LEO) infrared sounders, the detection sensitivity, as
quantified by the averaging kernel (AK) matrix, peaks in the lowest 2 km
atmospheric layers. The DOFS and TC are highly correlated, resulting in a
typical “butterfly” shape. That is, the DOFS increases when TC becomes
either more positive or more negative. The NH3 columns from FY-4B/GIIRS
exhibit significant diurnal cycles that are consistent with the day–night
gradient from the collocated IASI retrievals in the North China Plain and North
India for the averages in July–August, September–October, and
November–December, respectively. A collocated point-by-point intercomparison
with the IASI NH3 dataset shows generally good agreement with a small
systematic difference in the summer months that may be attributed to the
slight difference in a priori profiles. This study demonstrates the
capability of FY-4B/GIIRS in capturing the diurnal NH3 changes in East
Asia, which will have the potential to improve regional and global air
quality and climate research.
SPARCLE 2: A new optical particle counter to measure particle size and refractive index
Authors: Romadhon Moch Syarif , Peters Daniel , Grainger Roy Gordon
Published: August 2023

Abstract. In the last few decades, there has been an increasing need to improve in situ aerosol measurements to better understand the role of atmospheric aerosol on the Earth’s climate system and to assess the quality of ambient air. At the moment, in situ optically based aerosol photometers assume the refractive index of measured particles to give a size estimate. This assumption can result in large errors in estimated size. This study describes an instrument, called SPARCLE 2, that addresses this problem by simultaneously measuring the particle size and refractive index. SPARCLE 2 has two detectors to measure the pattern of aerosol-scattered light. The first is a detector with high sensitivity and high temporal resolution mainly to detect the presence of particles in the sensing volume. The second is a detector with high angular resolution to capture the pattern of scattered light. SPARCLE 2 is designed to measure particles whose diameters lie in the range 500 nm to 2,500 nm typical of the accumulation mode of troposphere aerosol. A theoretical lower particle size limit of 300 nm is determined by the optical and electronic noise. In practice, stray light limits the lower limit to a particle diameter of 800 nm. SPARCLE 2’s accuracy was tested using four monodisperse aerosols formed from non-absorbing polystyrene latex beads. The mean diameters of the test particles were 1,100 nm, 1,800 nm, 2,000 nm and 3,000 nm and their refractive index were 1.59. The standard deviation between SPARCLE 2’s measurement and the manufacturer’s stated size was 13 % for the 1,100 nm size particles and less than 3 % for the three larger sizes. The refractive index deviation was less than 1.25 % for all sizes. SPARCLE 2 was used to measure ambient Oxford (UK) city air. The size distributions measured by SPARCLE 2 were similar to those measured by a commercial optical particle counter. The refractive index distribution was consistent with the most abundant aerosol compositions around Oxford which are NO3−, NH4+ and SO42−.
Lidar depolarization characterization using a reference system
Authors: Papetta Alkistis , Marenco Franco , Mamouri Rodanthi-Elisavet , Nisantzi Argyro , Popovici Ioana Elisabeta , Goloub Philippe , Kezoudi Maria , Victori Stephane , Sciare Jean
Published: August 2023

Abstract. In this study, we will present a new approach for the determination of depolarization parameters of the Nicosia CIMEL CE376 lidar system, using the PollyXT in Limassol as a reference instrument. The method is applied retrospectively to the valuable measurements obtained during the 2021 Cyprus Fall campaign. Lidar depolarization measurements represent valuable information for aerosol typing and for the quantification of some specific aerosol types such as dust and volcanic ash. An accurate characterization is required for quality measurements and to remove instrumental artefacts. This article uses the PollyXT reference calibrated depolarization lidar to evaluate our system's gain ratio and channel cross-talk. This approach uses observations of transported dust from desert regions, with layers in the free troposphere. Above the boundary layer and the highest terrain elevation of the region, we can expect that for long transport aerosols local effects should not affect the aerosol mixture so that we can expect similar depolarization properties at the two stations (separated by ∼60 km). Algebraic equations are used to derive depolarization parameters from the comparison of the volume depolarization ratio measured by the two systems. The applied methodology offers a promising opportunity to evaluate the depolarization parameters of a lidar system, in cases where a priori knowledge of the cross-talk parameters is not available.
Evaluating marine dust records as templates for optical dating of Oldest Ice
Authors: Ng Jessica , Severinghaus Jeffrey , Bay Ryan , Tosi Delia
Published: August 2023

Abstract. The continuous ice core record extends 800,000 years into the past, covering the period of 100,000-year glacial cycles, but not the transition from 40,000-year glacial cycles (the Mid-Pleistocene Transition, 1.2–0.7 million years ago). A primary goal of the International Partnership in Ice Core Sciences is therefore to retrieve a 1.5-million-year-old continuous ice core, increasing our understanding of this major change in the climate system and thus of fundamental climate forcings and feedbacks. However, complex glacial processes, limited bedrock data, and surprisingly young basal ice in previous cores necessitate careful reconnaissance studies before extracting a full core. Ice borehole optical logging reflects the ice dust content and may be used to date ice quickly and inexpensively if a reference record is known. Here we explore the relationship between ice dust records and well-dated marine dust records from sediment cores in the southern Atlantic and Pacific Oceans, which lie along paths of dust sources to Antarctica. We evaluate how representative these records are of Antarctic dust both through the existing ice core record and during the older target age range, suggesting that a newly published 1.5 million year record from site U1537 near South America is likely the most robust predictor of the Oldest Ice dust signal. We then assess procedures for rapid dating of potential Oldest Ice sites, noting that the ability to detect dating errors is an essential feature. We emphasize that ongoing efforts to identify, recover, date, and interpret an Oldest Ice core should use care to avoid unfounded assumptions about the 40 kyr world based on the 100 kyr world.
Organosulfate Produced from Consumption of SO3 Speeds up Sulfuric Acid-Dimethylamine Atmospheric Nucleation
Authors: Zhang Xiaomeng , Lian Yongjian , Tan Shendong , Yin Shi
Published: August 2023

Abstract. Although sulfuric acid (SA) and dimethylamine (DMA) driven nucleation mainly dominants the new particle formation (NPF) process in the atmosphere, seeking the involvement of other gaseous species remains crucial to better understand the NPF. Organosulfate has been detected in gas phase and abundantly in atmospheric fine particles. However, its molecular formation mechanism and its impact on the NPF are still much less understood. Here, we explored the gas phase reaction of Glycolic acid (GA) with SO3, and evaluated the enhancing potential of its products on the SA-DMA driven NPF using a combination of quantum chemical calculations and kinetics modeling. We found that the considerable concentration of glycolic acid sulfate (GAS) is thermodynamically accessible from the reaction of GA with SO3, efficiently catalyzed by SA or H2O molecules. The produced GAS can form stable clusters with SA and DMA, and speeds up the nucleation rate of SA-DMA system obviously. Notably, the enhancement by GAS on the SA-DMA-based particle formation rate can be up to ~ 800 times in the region where the concentration of SA is about 104 molecules cm-3. Supported by observations of atmospheric NPF events at Mt. Tai in China, our proposed ternary GAS-SA-DMA nucleation mechanism further indicates that the organosulfates produced from the consumption of SO3 may play an important role for the unexpected high NPF rates observed in areas with relatively low concentrations of SA. The presented reaction and nucleation mechanisms provide a new feasible source of organosulfates in atmospheric new particles. Based on our findings, the impact of organosulfates on the atmospheric NPF in multiple regions around the world was estimated and discussed.
Explaining the green volcanic sunsets after the 1883 eruption of Krakatoa
Authors: von Savigny Christian , Lange Anna , Hoffmann Christoph , Rozanov Alexei
Published: August 2023

Abstract. Volcanic sunsets are usually associated with extended and enhanced reddish colours typically complemented by purple colours at higher elevations. However, many eyewitnesses reported remarkably clear and distinct green twilight colours after the eruption of Krakatoa (Sunda Strait, Indonesia) on August 27, 1883. To our best knowledge, no earlier studies exist providing an explanation for this unusual phenomenon. In the current work we employ simulations with the SCIATRAN radiative transfer model to investigate the processes leading to green volcanic sunsets. Green sunsets can be simulated based on plausible assumptions by anomalous scattering on stratospheric sulfate aerosols. We investigate the sensitivity of the twilight colours to relevant parameters such as aerosol optical depth, the parameters of the particle size distribution and the amount of ozone. The main requirements for the occurrence of green twilights are a sufficiently large aerosol optical depth combined with particle radii of about 500 – 700 nm (assuming stratospheric sulfate aerosols) and a preferably narrow aerosol particle size distribution. The occurrence of green twilights after historic eruptions provides important constraints on the particle size of volcanic aerosols.
Variations in Boundary Layer Stability Across Antarctica: A Comparison Between Coastal and Interior Sites
Authors: Dice Mckenzie June , Cassano John , Jozef Gina Clara , Seefeldt Mark
Published: August 2023

Abstract. The range of boundary layer stability profiles, from the surface to 500 m above ground level, present in radiosonde observations from two continental interior (South Pole and Dome Concordia) and three coastal (McMurdo, Georg von Neumayer III, and Syowa) Antarctic sites, is examined using the self-organizing maps (SOMs) neural network algorithm. A wide range of potential temperature profiles is revealed, from shallow boundary layers with strong near-surface stability to deeper boundary layers with weaker or near-neutral stability, as well as profiles with weaker near-surface stability and enhanced stability aloft, above the boundary layer. Boundary layer regimes were defined based on the range of profiles revealed by the SOM analysis. Twenty boundary layer regimes were identified to account for differences in stability near the surface as well as above the boundary layer. Strong, very strong, or extremely strong stability, with vertical potential temperature gradients of 5 to in excess of 30 K (100 m)-1, occurred more than 80 % of the time at South Pole and Dome Concordia in the winter. Weaker stability was found in the winter at the coastal sites, with moderate and strong stability (vertical potential temperature gradients of 1.75 to 15 K (100 m)-1) occurring 70 % to 85 % of the time. Even in the summer, moderate and strong stability is found across all five sites, either immediately near the surface or aloft, just above the boundary layer. While the mean boundary layer height at the continental interior sites was found to be approximately 50 m, the mean boundary layer height at the costal sites was deeper, around 110 m. Further, a commonly described two stability regime system in the Arctic associated with clear or cloudy conditions was applied to the 20 boundary layer regimes identified in this study to understand if the two-regime behavior is also observed in the Antarctic. It was found that moderate and strong stability occur more often with clear than cloudy sky conditions, but weaker stability regimes occur almost equally for clear and cloudy conditions.
Tracking slow-moving landslides with PlanetScope data: new perspectives on the satellite’s perspective
Authors: Mueting Ariane , Bookhagen Bodo
Published: August 2023

Abstract. PlanetScope data with daily temporal and 3-m spatial resolution hold an unprecedented potential to quantify and monitor surface displacements from space. Slow-moving landslides, however, are complex and dynamic targets that alter their topography over time. This leads to orthorectification errors, resulting in inaccurate displacement estimates when images acquired from varying satellite perspectives are correlated. These errors become particularly concerning when the magnitude of orthorectification error exceeds the signal from surface displacement which is the case for many slow-moving landslides with annual velocities of 1–10 m/yr. This study provides a comprehensive assessment of orthorectification errors in PlanetScope imagery and presents effective mitigation strategies for both unrectified L1B and orthorectified L3B data. By implementing these strategies, we achieve sub-pixel accuracy, enabling the estimation of realistic and temporally coherent displacement over landslide surfaces. The improved signal-to-noise ratio results in higher-quality disparity maps, allowing for a more detailed analysis of landslide dynamics and their driving factors.
A genetic particle filter scheme for univariate snow cover assimilation into Noah-MP model across snow climates
Authors: You Yuanhong , Huang Chunlin , Wang Zuo , Hou Jinliang , Zhang Ying , Xu Peipei
Published: August 2023

Abstract. Accurate snowpack simulations are critical for regional hydrological
predictions, snow avalanche prevention, water resource management, and
agricultural production, particularly during the snow ablation period. Data
assimilation methodologies are increasingly being applied for operational
purposes to reduce the uncertainty in snowpack simulations and to enhance their
predictive capabilities. This study aims to investigate the feasibility of
using a genetic particle filter (GPF) as a snow data assimilation scheme
designed to assimilate ground-based snow depth (SD) measurements across
different snow climates. We employed the default parameterization scheme
combination within the Noah-MP (with multi-parameterization) model as the model operator in the snow data
assimilation system to evolve snow variables and evaluated the assimilation
performance of the GPF using observational data from sites with different snow
climates. We also explored the impact of measurement frequency and particle
number on the filter updating of the snowpack state at different sites and
the results of generic resampling methods compared to the genetic algorithm
used in the resampling process. Our results demonstrate that a GPF can be used
as a snow data assimilation scheme to assimilate ground-based measurements
and obtain satisfactory assimilation performance across different snow
climates. We found that particle number is not crucial for the filter's
performance, and 100 particles are sufficient to represent the high
dimensionality of the point-scale system. The frequency of measurements can
significantly affect the filter-updating performance, and dense ground-based
snow observational data always dominate the accuracy of assimilation
results. Compared to generic resampling methods, the genetic algorithm used
to resample particles can significantly enhance the diversity of particles
and prevent particle degeneration and impoverishment. Finally, we concluded
that the GPF is a suitable candidate approach for snow data assimilation and
is appropriate for different snow climates.
Pengaruh Sosialisasi Perpajakan, Sanksi Pajak, Dan Kualitas Layanan Perpajakan Terhadap Kepatuhan Wajib Pajak Hotel, Restoran, Dan Hiburan Di Kota Makassar
Authors: Mansyur Yusran , Sjarlis Sylvia , Abidin Zainal
Published: August 2023

This study aims to determine and analyze the effect of tax socialization, tax sanctions and taxpayer compliance at the Makassar City Regional Revenue Agency. The type of research is quantitative with a survey approach. This research was conducted at the Regional Revenue Agency with a research time of 2 months. This study used a survey by distributing questionnaires. The population used is the taxpayers. The sampling technique used the Hair formula where 360 samples were obtained. The analytical method used is Multiple Linear Regression Analysis. The results of this study prove that tax socialization, tax sanctions and taxpayer compliance have a positive and significant effect on taxpayer compliance in Makassar City. The coefficient of determination in this study is 14.1%.
Aceptación de la tecnología y su relación con el desempeño laboral de los teletrabajadores
Authors: García-Salirrosas Elizabeth Emperatriz , Millones-Liza Dany Yudet
Published: August 2023

La pandemia ha intensificado el uso de la tecnología en los entornos laborales, representando un desafío para los trabajadores desarrollar habilidades tecnológicas para cumplir con sus funciones. Es por ello, que el presente estudio se propuso determinar la relación entre la aceptación de la tecnología y el desempeño laboral de los trabajadores que realizan sus actividades a través del uso de la tecnología de información y comunicación (teletrabajadores). Para lo cual se encuestó a 308 personas que manifestaron estar laborando mediante el teletrabajo. A partir de un análisis de correlación Rho de Spearman, los resultados demostraron una relación positiva y significativa (Rho = 0.475, sig. = 0.000) entre la aceptación tecnológica y el desempeño laboral de los teletrabajadores. Finalmente, se concluye que para que una empresa logre un buen desempeño de los trabajadores en la modalidad del teletrabajo es necesario que los líderes empresariales deben realizar programas de capacitación y sensibilización para lograr una buena aceptación de la tecnología por parte de su personal, con el fin de alcanzar un buen desempeño laboral y alcanzar sus objetivos organizacionales.
Toma de decisiones estratégicas en empresas: Innovación y competitividad
Authors: Nuñez-Lira Luis Alberto , Alfaro Bernedo Juan Oswaldo , Aguado Lingan Aracelli Mónica , González Ponce de León Erica Rojana
Published: August 2023

En la actualidad, el mundo empresarial se caracteriza por la creciente competencia, la velocidad de los cambios tecnológicos y la necesidad de innovación constante. Las empresas se enfrentan a un entorno altamente dinámico y cambiante, en el que los mercados se globalizan y las expectativas de los consumidores evolucionan rápidamente, dificultando de esta manera sostener la competitividad. El presente trabajo se propone describir la relación entre la toma de decisiones estratégicas y el éxito de la innovación y la competitividad empresarial a partir de un estudio teórico-documental de diversas fuentes bibliográficas de la materia. Se identifican cuatro estrategias fundamentales para la aplicación adecuada de la toma de decisiones estratégicas: La evaluación exhaustiva del entorno empresarial y de la competencia en el mercado, fomentar una cultura de innovación y creatividad, establecer objetivos claros y medibles, y tomar riesgos y experimentar con nuevas ideas y enfoques. Las empresas deberán incorporar cada vez más tecnologías avanzadas, como el aprendizaje automático y la inteligencia artificial, para tomar decisiones más precisas y rápidas con manejo de volúmenes más altos de información. Además, las empresas pueden integrar cada vez más enfoques de sostenibilidad en sus estrategias empresariales, abordando los impactos ambientales y sociales de sus operaciones.