bluuebunny/crossref_metadata_2025 huggingface dataset:
Chemical properties and single-particle mixing state of soot aerosol in Houston during the TRACER campaign
Authors: Farley Ryan N. , Lee James E. , Rivellini Laura-Hélèna , Lee Alex K. Y. , Dal Porto Rachael , Cappa Christopher D. , Gorkowski Kyle , Shawon Abu Sayeed Md , Benedict Katherine B. , Aiken Allison C. , Dubey Manvendra K. , Zhang Qi
Published: April 2024

Abstract. A high-resolution soot particle aerosol mass spectrometer (SP-AMS) was used to selectively measure refractory black carbon (rBC) and its associated coating material using both the ensemble size-resolved mass spectral mode and the event trigger single particle (ETSP) mode in Houston, Texas, in summer 2022. This study was conducted as part of the Department of Energy Atmospheric Radiation Measurement (ARM) program's TRacking Aerosol Convection interactions ExpeRiment (TRACER) field campaign. The study revealed an average (±1σ) rBC concentration of 103 ± 176 ng m−3. Additionally, the coatings on the BC particles were primarily composed of organics (59 %; 219 ± 260 ng m−3) and sulfate (26 %; 94 ± 55 ng m−3). Positive matrix factorization (PMF) analysis of the ensemble mass spectra of BC-containing particles resolved four distinct types of soot aerosol, including an oxidized organic aerosol (OOABC,PMF) factor associated with processed primary organic aerosol, an inorganic sulfate factor (SO4,BC,PMF), an oxidized rBC factor (O-BCPMF), and a mixed mineral dust–biomass burning aerosol factor with significant contribution from potassium (K-BBBC,PMF). Additionally, K-means clustering analysis of the single-particle mass spectra identified eight different clusters, including soot particles enriched in hydrocarbon-like organic aerosol (HOABC,ETSP), sulfate (SO4,BC,ETSP), two types of rBC, OOA (OOABC,ETSP), chloride (ClBC,ETSP), and nitrate (NO3,BC,ETSP). The single-particle measurements demonstrate substantial variation in BC coating thickness with coating-to-rBC mass ratios ranging from 0.1 to 100. The mixing state index (χ), which denotes the degree of homogeneity of the soot aerosol, varied from 4 % to 94 % with a median of 40 %, indicating that the aerosol population lies in between internal and external mixing but has large temporal and source type variability. In addition, a significant fraction of BC-containing particles, a majority enriched with oxidized organics and sulfate, exhibit sufficiently high κ values and diameters conducive to activation as cloud nuclei under atmospherically relevant supersaturation conditions. This finding bears significance in comprehending the aging processes of rBC-containing particles and their activation into cloud droplets. Our analysis highlights the complex nature of soot aerosol and underscores the need to comprehend its variability across different environments for accurate assessment of climate change.
Simulation of ozone–vegetation coupling and feedback in China using multiple ozone damage schemes
Authors: Cao Jiachen , Yue Xu , Ma Mingrui
Published: April 2024

Abstract. As a phytotoxic pollutant, surface ozone (O3) not only affects plant physiology but also influences meteorological fields and air quality by altering leaf stomatal functions. Previous studies revealed strong feedbacks of O3–vegetation coupling in China but with large uncertainties due to the applications of varied O3 damage schemes and chemistry–vegetation models. In this study, we quantify the O3 vegetation damage and the consequent feedbacks to surface meteorology and air quality in China by coupling two O3 damage schemes (S2007 vs. L2013) into a fully coupled regional meteorology–chemistry model. With different schemes and damaging sensitivities, surface O3 is predicted to decrease summertime gross primary productivity by 5.5 %–21.4 % and transpiration by 5.4 %–23.2 % in China, in which the L2013 scheme yields 2.5–4 times of losses relative to the S2007 scheme. The damage to the photosynthesis of sunlit leaves is ∼ 2.6 times that of shaded leaves in the S2007 scheme but shows limited differences in the L2013 scheme. Though with large discrepancies in offline responses, the two schemes yield a similar magnitude of feedback to surface meteorology and O3 air quality. The O3-induced damage to transpiration increases national sensible heat by 3.2–6.0 W m−2 (8.9 % to 16.2 %), while reducing latent heat by 3.3–6.4 W m−2 (−5.6 % to −17.4 %), leading to a 0.2–0.51 °C increase in surface air temperature and a 2.2 %–3.9 % reduction in relative humidity. Meanwhile, surface O3 concentrations on average increase by 2.6–4.4 µg m−3, due to the inhibitions of stomatal uptake and the anomalous enhancement in isoprene emissions, the latter of which is attributed to the surface warming by O3–vegetation coupling. Our results highlight the importance of O3 control in China due to its adverse effects on ecosystem functions, global warming, and O3 pollution through O3–vegetation coupling.
Aerosol and cloud data processing and optical property retrieval algorithms for the spaceborne ACDL/DQ-1
Authors: Dai Guangyao , Wu Songhua , Long Wenrui , Liu Jiqiao , Xie Yuan , Sun Kangwen , Meng Fanqian , Song Xiaoquan , Huang Zhongwei , Chen Weibiao
Published: April 2024

Abstract. The new-generation atmospheric environment monitoring satellite DQ-1, launched successfully in April 2022, carries the Aerosol and Carbon Detection Lidar (ACDL), which is capable of globally profiling aerosol and cloud optical properties with high accuracy. The ACDL/DQ-1 is a high-spectral-resolution lidar (HSRL) that separates molecular backscatter signals using an iodine filter and has 532 nm polarization detection and dual-wavelength detection at 532 and 1064 nm, which can be utilized to derive aerosol optical properties. The methods have been specifically developed for data processing and optical property retrieval according to the specific characteristics of the ACDL system and are introduced in detail in this paper. Considering the different signal characteristics and different background noise behaviors of each channel during daytime and nighttime, the procedures of data pre-processing, denoising process and quality control are applied to the original measurement signals. The aerosol and cloud optical property products of the ACDL/DQ-1, including the total depolarization ratio, backscatter coefficient, extinction coefficient, lidar ratio and color ratio, can be calculated by the retrieval algorithms presented in this paper. Two measurement cases with use of the ACDL/DQ-1 on 27 June 2022 and the global averaged aerosol optical depth (AOD) from 1 June to 4 August 2022 are provided and analyzed, demonstrating the measurement capability of the ACDL/DQ-1.
Post-hercynian ultra-high temperature tectono-metamorphic evolution of the Middle Atlas lower crust (Central Morocco) revealed by metapelitic granulites xenoliths
Authors: El Maz Abdelkader , Vauchez Alain , Dautria Jean-Marie
Published: April 2024

Abstract. The study of metapelitic sillimanite- and garnet-bearing granulite xenoliths brought to the surface by the basanite of the 650 ka Tafraoute maar shed new light on the lower crust of the Tabular Middle Atlas (Morocco). Two main types of granulites are distinguished: (1) layered quartzo-feldspathic and (2) unlayered restitic. Mineralogy, petrology, P-T estimates and EBSD data support that these granulites underwent two successive tectono-metamorphic events, before their entrapment in lava. During the first event, probably the Hercynian orogeny, the Tafraoute lower crust acquired its foliation and primary paragenesis likely including kyanite: it yields P, T conditions of 1.1 ± 0.1 GPa and 850–880 °C. The second event corresponds to a reheating up to ultrahigh temperatures (1050 ± 50 °C) under slightly lower pressure conditions (0.9 ± 0.1 GPa). This led first to the transformation of kyanite into large prismatic sillimanite. The latter displays uncommon evidence of dislocation-creep deformation of moderate intensity that points to a tectonic episode occurring after their formation. After deformation has stopped, a reaction between sillimanite and garnet resulted in the crystallization of orthopyroxene and spinel deformation-free coronas around garnets. Approaching the peak of temperature, anhydrous partial melting of quartzo-feldspathic layers likely occurred and the resulting felsic melt spread into the rocks. This reheating event might be the consequence of the Late Permian to Mid-Jurassic rifting that preceded the formation of the Middle Atlas range, possibly associated with underplating of hot gabbroic magma. This event was followed by gradual cooling down to ~800 °C, leading to static crystallization of the felsic melt in the quartzo-feldspathic granulites. The last event susceptible to have affected the lower crust is the alkali magmatism active in the Middle Atlas during the Mio-Plio-Quaternary. In this context, the origin of restitic granulites is questionable. It may result either from the thermal event associated to the pre-alpine rifting, or from the emplacement of basaltic dykes in the lower crust before the quaternary eruption of the Tafraoute volcano. During this eruption, the studied granulites were entrapped in the ascending lava and very quickly transferred up to the surface, triggering the formation of small vesicular glass pockets. This study highlights the contrasted post-Hercynian evolution of the lower crust in the northern coastal alpine orogen (Rif) and the Tabular Middle Atlas: the first one underwent a tectonic exhumation without reheating during the Alpine orogeny, while the second one is characterized by a reheating to ultra-high temperature, probably during the pre-alpine rifting, but was probably not or very little affected by the alpine events.
High Altitude Aerosol Chemical Characterization and Source Identification: Insights from the CALISHTO Campaign
Authors: Zografou Olga , Gini Maria , Fetfatzis Prodromos , Granakis Konstantinos , Foskinis Romanos , Manousakas Manousos Ioannis , Tsopelas Fotios , Diapouli Evangelia , Dovrou Eleni , Vasilakopoulou Christina N. , Papayannis Alexandros , Pandis Spyros N. , Nenes Athanasios , Eleftheriadis Konstantinos
Published: April 2024

Abstract. The Cloud-AerosoL InteractionS in the Helmos background TropOsphere (CALISHTO) campaign took place in autumn 2021 at the NCSR Demokritos background high-altitude Helmos Hellenic Atmospheric Aerosol & Climate Change station (HAC)2 to study the interactions between aerosols and clouds. The current study presents the chemical characterization of the Non-Refractory (NR) PM1 aerosol fraction using a Time-of-Flight Aerosol Chemical Speciation Monitor (ToF-ACSM). A comparative offline aerosol filter analysis by a High-Resolution Time-of-Flight Aerosol Mass Spectrometry (HR-ToF-AMS) showed consistent results regarding the species determined. Source apportionment applied on both datasets (ACSM-ToF and offline AMS analysis on filter extracts) yielded the same factors for the organic aerosol (one primary and two secondary factors). Additionally, the Positive Matrix Factorization (PMF) model was applied on the total PM1 fraction by the ToF-ACSM (including both organic and inorganic ions). Five different types were identified, including a primary organic factor, ammonium nitrate, ammonium sulphate, and two secondary organic aerosols; one more and one less oxidized. The prevailing atmospheric conditions at the station, i.e. cloud presence, influence from emissions from the Planetary Boundary Layer (PBL) and air mass origin were also incorporated in the study. The segregation between PBL and Free Troposphere (FT) conditions was made by combining data from remote sensing and in-situ measurement techniques. The types of air masses arriving at the site were grouped as continental, marine, dust and marine-dust based on back trajectories data. Significant temporal variability in the aerosol characteristics was observed throughout the campaign; in September, air masses from within the PBL were sampled most of the time, resulting in much higher mass concentrations compared to October and November when concentrations were reduced by a factor of 5. Both in-cloud and FT measurement periods resulted in much lower concentration levels, while similar composition was observed in PBL and FT conditions. We take advantage of using a recently developed “virtual filtering” technique to separate interstitial from activated aerosol sampled from a PM10 inlet during cloudy periods. This allows the determination of the chemical composition of the interstitial aerosol during in-cloud periods. Ammonium sulphate, the dominant PMF factor in all conditions, contributed more when air masses were arriving at (HAC)2 during Dust events, while higher secondary organic aerosol contribution was observed when air masses arrived from continental Europe.
Advancing understanding of lake–watershed hydrology: a fully coupled numerical model illustrated by Qinghai Lake
Authors: Shu Lele , Li Xiaodong , Chang Yan , Meng Xianhong , Chen Hao , Qi Yuan , Wang Hongwei , Li Zhaoguo , Lyu Shihua
Published: April 2024

Abstract. Understanding the intricate hydrological interactions between lakes and their surrounding watersheds is pivotal for advancing hydrological research, optimizing water resource management, and informing climate change mitigation strategies. Yet, these complex dynamics are often insufficiently captured in existing hydrological models, such as the bi-direction surface and subsurface flow. To bridge this gap, we introduce a novel lake–watershed coupled model, an enhancement of the Simulator of Hydrological Unstructured Domains. This high-resolution, distributed model employs unstructured triangles as its fundamental hydrological computing units (HCUs), offering a physical approach to hydrological modeling. We validated our model using data from Qinghai Lake in China, spanning from 1979 to 2018. Remarkably, the model not only successfully simulated the streamflow of the Buha River, a key river within the Qinghai Lake basin, achieving a Nash–Sutcliffe efficiency (NSE) of 0.62 and 0.76 for daily and monthly streamflow, respectively, but also accurately reproduced the decrease–increase U-shaped curve of lake level change over the past 40 years, with an NSE of 0.71. Our model uniquely distinguishes the contributions of various components to the lake's long-term water balance, including river runoff, surface direct runoff, lateral groundwater contribution, direct evaporation, and precipitation. This work underscores the potential of our coupled model as a powerful tool for understanding and predicting hydrological processes in lake basins, thereby contributing to more effective water resource management and climate change mitigation strategies.
Climatology of large hail in Europe: characteristics of the European Severe Weather Database
Authors: Hulton Faye , Schultz David M.
Published: April 2024

Abstract. Large hail (greater than 2 cm in diameter) can cause devastating damage to crops and property and can even cause loss of life. Because hail reports are often collected by individual countries, constructing a Europe-wide large-hail climatology has been challenging to date. However, the European Severe Storm Laboratory's European Severe Weather Database provides the only pan-European dataset for severe convective-storm reports. The database is comprised of 62 053 large-hail reports from 40 CE to September 2020, yet its characteristics have not been evaluated. Thus, the purpose of this study is to evaluate hail reports from this database for constructing a climatology of large hail. For the period 2000–2020, large-hail reports are most prominent in June, whereas large-hail days are most common in July. Large hail is mostly reported between 13:00–19:00 local time, a consistent pattern since 2010. The intensity, as measured by maximum hail size, shows decreasing frequency with increasing hailstone diameter and little change over the 20-year period. The quality of reports by country varies, with the most complete reporting being from central European countries. Thus, results suggest that despite its short record, many indications point to the dataset representing some reliable aspects of the European large-hail climatology, albeit with some limitations.
Does a convection-permitting regional climate model bring new perspectives on the projection of Mediterranean floods?
Authors: Poncet Nils , Lucas-Picher Philippe , Tramblay Yves , Thirel Guillaume , Vergara Humberto , Gourley Jonathan , Alias Antoinette
Published: April 2024

Abstract. Floods are the primary natural hazard in the French Mediterranean area, causing damages and fatalities every year. These floods are triggered by heavy precipitation events (HPEs) characterized by limited temporal and spatial extents. A new generation of regional climate models at the kilometer scale have been developed, allowing an explicit representation of deep convection and improved simulations of local-scale phenomena such as HPEs. Convection-permitting regional climate models (CPMs) have been scarcely used in hydrological impact studies, and future projections of Mediterranean floods remain uncertain with regional climate models (RCMs). In this paper, we use the CNRM-AROME CPM (2.5 km) and its driving CNRM-ALADIN RCM (12 km) at the hourly timescale to simulate floods over the Gardon d'Anduze catchment located in the French Mediterranean region. Climate simulations are bias-corrected with the CDF-t method. Two hydrological models, a lumped and conceptual model (GR5H) and a process-based distributed model (CREST), forced with historical and future climate simulations from the CPM and from the RCM, have been used. The CPM model confirms its ability to better reproduce extreme hourly rainfall compared to the RCM. This added value is propagated on flood simulation with a better reproduction of flood peaks. Future projections are consistent between the hydrological models but differ between the two climate models. Using the CNRM-ALADIN RCM, the magnitude of all floods is projected to increase. With the CNRM-AROME CPM, a threshold effect is found: the magnitude of the largest floods is expected to intensify, while the magnitude of the less severe floods is expected to decrease. In addition, different flood event characteristics indicate that floods are expected to become flashier in a warmer climate, with shorter lag time between rainfall and runoff peak and a smaller contribution of base flow, regardless of the model. This study is a first step for impact studies driven by CPMs over the Mediterranean.
Lahar events in the last 2000 years from Vesuvius eruptions – Part 1: Distribution and impact on densely inhabited territory estimated from field data analysis
Authors: Di Vito Mauro Antonio , Rucco Ilaria , de Vita Sandro , Doronzo Domenico Maria , Bisson Marina , de' Michieli Vitturi Mattia , Rosi Mauro , Sandri Laura , Zanchetta Giovanni , Zanella Elena , Costa Antonio
Published: April 2024

Abstract. Lahars represent some of the most dangerous phenomena in volcanic areas for their destructive power, causing dramatic changes in the landscape with no premonitory signs and impacting the population and infrastructure. In this regard, the Campanian Plain turns out to be very prone to the development of these phenomena, since the slopes of the Somma–Vesuvius and Campi Flegrei volcanoes, along with the Apennine reliefs, are mantled by pyroclastic deposits that can be easily remobilized, especially after intense and/or prolonged rainfall. This study focuses on the analysis of pyroclastic fall and flow deposits and of the syn- and post-eruptive lahar deposits related to two sub-Plinian eruptions of Vesuvius in 472 CE (Pollena) and 1631. To begin with, historical and field data from the existing literature and from hundreds of outcrops were collected and organized into a database, which was integrated with several new pieces of data. In particular, stratigraphic, sedimentological (facies analysis and laboratory), and archeological analyses were carried out, in addition to rock magnetic investigations and impact parameter calculations. The new data are also referenced to the finding of ash beds in more distal areas, which were included in new isopach maps for the two sub-Plinian eruptions. The results show that for both eruptions the distribution of the primary deposits is wider than previously known. A consequence of these results is that a wider areal impact should be expected in terms of civil protection, as the sub-Plinian scenario is the reference one for a future large eruption of Vesuvius. Such a distribution of the pyroclastic deposits directly affects the one of the lahar deposits, also because a significant remobilization took place during and after the studied eruptions, which involved distal phreatomagmatic ash. From these integrated analyses, it was possible to constrain the timing of the deposition and the kind of deposits remobilized (pyroclastic fall vs. flow), and it was possible to calculate the velocities and dynamic pressures of the lahars and ultimately infer the lahar transport and emplacement mechanisms. The multidisciplinary approach adopted in this work shows how it is crucial to assess the impact of lahars in densely populated areas even at distances of several to tens of kilometers from active volcanoes. This especially applies to large parts of the densely populated areas around Somma–Vesuvius up to the nearby Apennine valleys.
Lahar events in the last 2000 years from Vesuvius eruptions – Part 2: Formulation and validation of a computational model based on a shallow layer approach
Authors: de' Michieli Vitturi Mattia , Costa Antonio , Di Vito Mauro A. , Sandri Laura , Doronzo Domenico M.
Published: April 2024

Abstract. In this paper we present a new model for the simulation of lahars based on the depth-averaged code IMEX-SfloW2D with new governing and constitutive equations introduced to better describe the dynamics of lahars. A thorough sensitivity analysis is carried out to identify the critical processes (such as erosion and deposition) and parameters (both numerical and physical) controlling lahar runout using both synthetic and real case topographies. In particular, an application of the model to a syn-eruptive lahar from a reference size eruption from Somma–Vesuvius, affecting the Campanian Plain (southern Italy), described in Di Vito et al. (2024), is used in this work for the sensitivity analysis. Effects of erosion and deposition are investigated by comparing simulations with and without these processes. By comparing flow thickness and area covered by the flow and their evolution with time, we show that the modelling of both the processes is important to properly simulate the effects of the bulking and debulking as well as the associated changes in rheology. From a computational point of view, the comparisons of simulations obtained for different numerical grids (from 25 to 100 m), scheme order, and grain size discretization were useful to find a good compromise between resolution and computational speed. The companion paper by Sandri et al. (2024) shows an application of the presented model for probabilistic volcanic hazard assessment for lahars from Vesuvius deposits in the Neapolitan area.
Analysing 23 years of warm-season derechos in France: a climatology and investigation of synoptic and environmental changes
Authors: Fery Lucas , Faranda Davide
Published: April 2024

Abstract. Derechos are severe convective storms known for producing widespread damaging winds. While less frequent than in the United States of America (USA), derechos also occur in Europe. The notable European event on 18 August 2022 exhibited gusts exceeding 200 km h−1, spanning 1500 km in 12 h. This study presents a first climatology of warm-season derechos in France, identifying 38 events between 2000 and 2022. Typically associated with a southwesterly mid-level circulation, warm-season derechos in France generally initiate in the afternoon and exhibit peak activity in July, with comparable frequencies in June and August. Predominantly impacting the northeast of France, these events exhibit a maximum observed frequency of 0.65 events per year, on average, within a 200 km by 200 km square region. These characteristics are similar to those observed in Germany, with notable differences seen in the USA, where frequencies can attain significantly higher values. The study also examines synoptic and environmental changes linked with analogues of the 500 hPa geopotential height patterns associated with past warm-season derechos, comparing analogues from a relatively distant past (1950–1980) with a recent period (1992–2022). For most events, a notable increase in convective available potential energy (CAPE) is observed, aligning with trends identified in previous studies for southern Europe. However, no consistent change in 0–6 km vertical wind shear is observed in the recent period. These environmental shifts align with higher near-surface temperatures, altered mid-level atmospheric flow patterns and often increased rainfall. The role of anthropogenic climate change in these changes remains uncertain, given potential influences of natural variability factors such as the El Niño–Southern Oscillation (ENSO) or the Atlantic Multidecadal Oscillation (AMO).
Teaching Zora Neale Hurston’s Their Eyes Were Watching God in First-Year Composition
Authors: Conner Samantha Prillaman
Published: April 2024

My teaching note explores how to teach Zora Neale Hurston's Their Eyes Were Watching God in first-year composition classrooms. I discuss the demographics of my classroom in a rural public university, and my students' reactions to reading the novel. This article highlights the successes and challenges of my classroom discussions and activities relating to reader comprehension and code switching. In addition, I explore ways to implement antiracist and feminist pedagogies while keeping students out of the "panic zone."
Peran Kreativitas dalam Penggunaan Media Alat Peraga dan Teknik Berhomili di Stasi Santo Bonaventura Situnggaling, Paroki Santo Fransiskus Asisi Saribudolok
Authors: Thomas N. Tarigan  , Paulinus Tibo  , Gurning Livo Novita Gurnin , Ona Sastri Lumban Tobing
Published: April 2024

Kreativitas pengurus Gereja dalam berhomili di Stasi Santo Bonaventura Situnggaling Paroki Santo Fransiskus Asisi Saribudolok menjadi orientasi atau konsen dalam penelitian ini karena Gereja Keuskupan Agung Medan berusaha mendidik umat awam melalui tenaga-tenaga fungsionaris pastoral ambil bagian secara aktif terutama memimpin perayaan sabda pada hari minggu tanpa iman dan memberikan homili. Pelaksanaan pengumpulan data peneliti menggunakan pendekatan fenomenologi kualitatif. pendekatan ini menggunakan tiga teknik meliputi wawancara kepada informan secara langsung dengan teknik mendengarkan, pengumpulan data melalui observasi dan dokumen-dokumen pendukung sebagai bagian dari dokumentasi. Tahapan analisis data diawali dengan reduksi data, melakukan display data dan menguji kebenaran data dengan triangulasi teknik dan sumber. Upaya dilakukan dengan pendekatan ini menemukan dua aspek penting tentang kreativitas pengurus Gereja dalam berhomili yang dijadikan sebagai temuan meliputi: (1) Pengurus Gereja memiliki kreativitas dalam membawakan homili terutama penggunaan alat peraga meskipun belum maksimal, bahasa tubuh: ekspresi wajah, gestur tubuh, intonasi suara dan kontak dialog dengan umat. (2) Homili berbuah bagi umat beriman di paroki ini seperti: Umat mengalami pemahaman mendalam akan makna sabda Allah bagi hidup, mengalami kehadiran Allah dalam hidup sekarang dan mengubah hidup dalam pertobatan sejati. Umat merasakan kesejahteraan dalam hidup. Walaupun masih banyak umat di Stasi ini belum mampu menjadikan homili sebagai buah yang baik dalam kehidupan sehari-hari.
Membangun Semangat Pelayanan Calon Katekis dalam Kegiatan Rohani di Lingkungan
Authors: Hemma Gregorius Tinenti  , Emilia Barek Ola
Published: April 2024

Masalah utama yang menjadi latar belakang dalam penelitian ini yaitu keprihatinan penulis terhadap minimnya keterlibatan calon katekis secara aktif dalam kegiatan rohani di lingkungan. Ketidakaktifan para calon katekis akan mempengaruhi tugas pokoknya di masa depan sebagai seorang katekis profesional. Persoalan yang menjadi fokus penelitian ini yaitu minimnya kehadiran mereka dalam kegiatan rohani serta minimnya kesadaran akan tugas pokok dari seorang katekis. Penelitian ini bertujuan agar lembaga pendidikan formal yang mendidik para calon katekis lebih fokus dalam mendidik dan mempersiapkan mahasiswa untuk menjadi katekis profesional di tengah umat. Sasaran lainnya adalah meningkatkan kesadaran sejak dini para calon katekis akan tugas pokok yang akan mereka emban. Penulis melakukan wawancara dengan informan-informan penelitian untuk menggali data. Subyek utama dari penelitian ini adalah mahasiswa, sedangkan subyek pendukungnya adalah para pemimpin umat atau pengurus lingkungan. Penulis menggunakan teknik wawancara terbuka untuk berkomunikasi dan menggali data dari para informan. Temuan dalam penelitian ini yaitu minimnya keaktifan dan ketidaktahuan para calon katekis akan tugas yang mereka emban. Menindaklanjuti penelitian ini, maka perlu adanya kontrol dari kampus ke para calon katekis dalam bentuk penugasan dan praktik di lingkungan yang sifatnya berkelanjutan selain itu perlu ditingkatkannya koordinasi antar lembaga pendidikan yang membina para calon katekis dengan Gereja atau paroki.
A identidade profissional de professoras dos anos iniciais do Ensino Fundamental: narrativas de trajetórias
Authors: Guimarães Augustto de Paula , Nacarato Adair Mendes
Published: April 2024

Neste texto, teve-se como foco a identidade profissional de professoras pedagogas atuantes nos anos iniciais do Ensino Fundamental. Visou-se responder à seguinte questão: O que as professoras narram sobre sua trajetória profissional e a constituição de seu ideário pedagógico? Buscou-se investigar os aspectos que interferem na constituição da identidade da professora pedagoga, considerando as narrativas produzidas por cinco docentes. O material empírico consistiu em entrevistas, na modalidade narrativa, com cinco docentes pedagogas. A análise, na perspectiva compreensivo-interpretativa, aponta indícios de marcas das experiências vividas como estudantes em seu modo de conceber o ensino e a aprendizagem dos alunos; desvela a influência das relações de afetividade experienciadas na escolha da docência; deixa ver os desafios do início da docência e os modos de superá-los, narrados pelas professoras; revelam o quanto isso contribui para a constituição identitária. As professoras consideraram-se em constante processo de formação, assumindo-se como sujeitos inacabados.
Work Loyalty, Communication, and Supervision Their Influenc on Work Ethic and Performance of Police Members in the Criminal Investigation Unit of the Bone Bolango Police Resort
Authors: Ibrahim Meimoon , Yakup Yakup , Karundeng Deby Rita , Abdillah Mohamad Rizal
Published: April 2024

The aim of this study is to analyze the influence of job loyalty, communication, and supervision on the work spirit and performance of members of the Criminal Investigation Unit (Satuan Reserse dan Kriminal) of Bone Bolango District Police. The population of the study consisted of 127 respondents selected using a census method. The analytical technique used to address the research problem and test hypotheses was Path Analysis, aided by Statistical Product Service Solution (SPSS) and Lisrel software for data analysis. The findings of this research are as follows: (1) job loyalty has a positive and significant direct effect on work spirit, (2) communication has a positive and significant direct effect on work spirit, (3) supervision has a positive and significant direct effect on work spirit, (4) job loyalty has a positive and significant direct effect on performance, (5) communication has a positive and significant direct effect on performance, (6) supervision has a positive and significant direct effect on performance, (7) work spirit has a positive and significant direct effect on performance, (8) job loyalty has a positive and significant indirect effect on performance through work spirit, (9) communication has a positive and significant indirect effect on performance through work spirit, (10) supervision has a positive and significant indirect effect on performance through work spirit.
Assessing the Impact of Social Distance on Skin Condition during COVID-19 Pandemic Based on an Online Survey
Authors: Korrapati Naga Harika , Bhowmik Priyanka , Balakrishnan Pavithra , Shah Jahnvi , Gabunia Luiza
Published: April 2024

Abstract - After the declaration of the pandemic in March 2020, Governments around the world made social distancing a mandatory rule to practice to prevent the spread of coronavirus infection (covid-19). This action has impacted our lives in several ways, it can be stated that it might also have an impact on skin conditions or lead to skin conditions. The purpose of this survey was to assess if individuals practicing social distancing have experienced any dermatological changes. An online survey consisting of 16 questions was conducted to find out if the prolonged practice of social distancing has led to any skin conditions. 39.7 %( n=93) of individuals who took the survey stated that they have observed changes in their skin, hair, and nails, they stated that these skin changes were observed post-pandemic (p=0.00037). 33.8% (n=79) of participants stated that they are experiencing hair loss and 4.7% (n=11) of individuals noted to have observed vertical lines in their nails. Along with several factors like changes in the skincare routine, diet changes, mood changes, wearing masks, and excessive sanitization, the practice of social distancing has shown to impact changes in dermatological conditions in the pandemic. These conditions can be prevented with the right precautionary measures and can be treated under the care of a dermatologist while still practicing social distancing.
Prévalence de la Dépendance à l’Exercice Physique Chez les Sportifs en Salle d’Antananarivo
Authors: RAZAFILISY Jockman Ludger , RATOBIMANANKASINA Hiarenantsoa Herilanja , ALSON Ravonirina Eric , RAZAKANDRAINY Holy Ainamalala , RAJAONARISON Bertille Hortense , RASOLONJATOVO Jean De la Croix , RAHARIVELO Adeline
Published: April 2024

PREVALENCE OF PHYSICAL EXERCISE DEPENDENCE AMONG THE CLIENT OF FITNESS ROOM IN ANTANANARIVOIntroduction: We wanted to describe the prevalence of exercise dependence among the client of fitness room in Antananarivo.Methods: This was a cross-sectional study carried from 15 November 2019 to 24 December 2020 among fitness room users in Antananarivo. Means of measure was EDS-R French Version.Results: Were retained 384 participants, mean age was 24,84 years old with female predominance (59,90%). In the majority of the cases, participants are single (54,69%) and young adults between 20 to 30 years old (63,28%). We retained that 11,72% are unemployed. In this study the prevalence of exercise dependence was 15,63% with a male predominance.Conclusion: A significant prevalence of physical exercise dependance was found.
The Use Of Agricultural Waste In Solving Of Environmental Problems In Democratic Republic Of The Congo
Authors: Muanda Meschack Mukunga , Farag Hassan , Malash Gihan
Published: April 2024

The presence of chromium in wastewaters produced from mining industries in Democratic Republic of the Congo is harmful for the environment. As a promising and polishing method for heavy metals removal from wastewaters, adsorption has been used with agricultural waste as low adsorbent. In this study, the use of sugar beet pulp has been investigated for the removal of hexavalent chromium from aqueous in batch adsorption mode. Adsorption experiments were conducted to obtain the optimal conditions combinations for the highest percent removal. Four parameters were studied such as contact time (30–180min), initial chromium concentration (10-50mg/L), pH (2-9) and solid to liquid ratio (0.25 g/100 mL-3 g/100 mL). However, the agitation rate was equal to 100 rpm and the room temperature was considered. The highest percent removals of 90.53% for 10 ppm concentration and 76.34% for 50 ppm concentration were achieved at the following conditions: pH 2, contact time 90 min, S/L ratios of 2 g/100 mL and 3 g/100 mL respectively. Langmuir and Freundlich adsorption isotherms were used for the mathematical description of adsorption equilibrium. Freundlich isotherm fitted well the equilibrium data. The maximum capacity (Qmax) from the Langmuir isotherm was found to be 11.299 mg/g. These results indicated that sugar beet pulp can be used as low cost adsorbent for the removal of chromium from mining industries wastewater to avoid environmental problems
Calculation Analysis Break Even Point on Profit Planning Case Study At Ladang Online 2022
Authors: Sopyan Muhamad Bagas , Setiawan Hendra
Published: April 2024

Ladang Online  is a business in the home industry that produces various types of shoes. This study aims to find out how to calculate the Break Even Point as well as further studies to find out what the operating breakeven point is, the amount of contribution margin, Margin of Safety, to further studies related to cost sensitivity analysis. This research is necessary considering the very dynamic conditions of the business world which require business actors to know how the business conditions they are running, whether they are in a profitable condition or are in a loss condition. The data analysis method used in this research is descriptive analysis method with a quantitative quantitative approach. The data analyzed and used in this study are in the form of interview results and documentation which will be processed first.The results of the research in the Break Even Point analysis at the Toko Sepatu Ladang Online have been able to optimize their performance so that they have been able to obtain sales above the Break Even Point, which means that the Ladang Online Shoe Store has been able to achieve maximum profits every year with predetermined profit target.
Information Dissemination of Indonesia’s FoLU Net Sink (IFNETS) 2030 Program: Production Process of IFNETS 2030 Press Release by Public Relations of the Ministry of Environment and Forestry
Authors: Fadillah Atisah Raihan , Santoso Hudi , Astuti Vivien Febri , Bachtiar Willy
Published: April 2024

Public relations of the Ministry of Environment and Forestry play a role in disseminating information related to the IFNETS 2030 program. One of the means used by public relations of the Ministry of Environment and Forestry is press releases. The IFNETS 2030 program press release that has been written by public relations will be distributed through the PPID website with a ppid.menlhk.go.id URL and sent to various media that have collaborated with the Ministry of Environment and Forestry to be published in their respective media. This is so that information related to the IFNETS 2030 program can be conveyed widely and quickly. This study aims to explain the process of disseminating information on the IFNETS 2030 program through a press release by the Public Relations of the Ministry of Environment and Forestry. The method used is field research which is strengthened by literature studies. Primary data were collected through active participation, direct observation, and in-depth interviews to obtain in-depth information regarding the IFNETS 2030 program information dissemination process through press releases from key informants with a descriptive analysis approach. The process of disseminating IFNETS 2030 program information through press releases consists of three stages, namely pre-production, production, and post-production.
Revenue Of Local Revenue Of Padang City With The Development Of Local Food-Based Culinary Tourism
Authors: Yanti Budi , Nurlina Nurlina , Rahmasari Nisya Cesaryani
Published: April 2024

The purpose of this study was to determine the effect of hotel tax revenue, restaurants, entertainment, tourist attraction levies, billboards, parking and street lighting on the revenue of Padang city's original income partially and simultaneously. Secondary research data sources in the form of panel data collected from library research. The research population is 12 regencies and 9 cities in West Sumatra province. The sample was determined by purposive sampling, namely Padang city. The multiple linear regression equation obtained Y = -897,973 + 7,869X1 + 5,492X2 + 498,735X 3 + 519,704 X 4 + 11,817X 5 + 10,249 X6 + 991,473X7 + e. The results showed that hotel, restaurant, entertainment, tourist attraction levies, billboards, parking and street lighting taxes had a significant positive effect on the PAD revenue of Padang city partially and simultaneously. Keywords - Local Revenue, Culinary Tourism and Local Food
The Resources Ownership And Livelihood Strategies Of Rubber Farmers In Nagari Tanjung Bonai Indonesia
Authors: Astuti Nuraini Budi , Sari Yelfi Novita , Analia Devi
Published: April 2024

A livelihood strategy contains steps to do something wisely and appropriately to achieve goals. To survive, rubber farmers cannot rely solely on rubber plantations; they must look for alternatives outside rubber farming. This study aimed to describe the livelihood resources and analyze the livelihood strategies of rubber farmers' households in Nagari Tanjung Bonai Aur Selatan during the rainy season. This study used a survey method, and the respondents were rubber farmers in Nagari Tanjung Bonai Aur Selatan, with a total of 40 respondents. The data analysis employed for this research was a quantitative and qualitative descriptive analysis. The results showed that the ownership of resources among rubber farmers in Nagari Tanjung Bonai Aur Selatan was in the medium category. In the rainy season, the livelihood strategy was primarily focused on increasing yields by intensifying agricultural land through clearing. The extensification strategy was carried out by becoming laborers, accounting for  13 (32,5%) households, while the diversification strategy involved activities such as sand collection and fish catching, representing 8 (20%) households of the respondents. However, migration was not a chosen strategy among rubber farmers in Nagari Tanjung Bonai Aur Selatan.
The Tiger Grouper Hatchery Techniques In The Lampung Marine Aquaculture Centre, Indonesia
Authors: Ryan Monica , Harminto Harminto , Amalia Ayu Rizki , Agusta Romi , Yernawilis Yernawilis
Published: April 2024

The tiger grouper (Epinephelus fuscoguttatus) exhibits characteristics ideal for cultivation due to its rapid growth rate and ability to be mass produced to satisfy market demand. The aim of this study is to implement the Tiger Grouper Hatchery Technique and measure the Fecundity, Fertilization Rate (FR), Hatching Rate (HR), and Survival Rate (SR) at the Tiger Grouper (Epinephelus fuscoguttatus) Hatchery located at Balai Besar Lampung Mariculture Fisheries. The chosen survey method allows for the collection of relevant data for the aforementioned parameters. Data can be collected through primary and secondary sources, as well as observation, literature review, and documentation. Hatchery techniques for Epinephelus fuscoguttatus, include the selection of parent fish, brood rearing, spawning, egg handling, larval rearing, harvesting, maintenance and transportation of seeds. The quantity of eggs laid was 3,292,475, with an average fertilization rate of 88.76%, an average hatching rate of 22.57%, and 350,000 larvae stocked, leading to 21,000 individuals or 6% survival ratio, measuring 1-3 cm in size.
Students' Ability To Interpret Pattern Imagessocial Cultural Spatial Of The Google Maps Application
Authors: Rina Ririn Posma , Sinaga Risma , Widodo Sugeng
Published: April 2024

Spatial pattern material in learning requires strong visualization so that students can understand complex concepts. However, the use of conventional media that does not support interactive visualization can make it difficult for students to understand the material and develop interpretation skills. This research aims to overcome this problem by using the Google Maps application in interpreting images of socio-cultural spatial patterns for students at SMA Negeri 1 Kalianda.The research was conducted in class The research results showed that 33 students or 94.29% could use the Google Maps application very well, 29 students or 82.86% were able to interpret the spatial patterns around their respective students' residences, 28 students or 80% were able to interpret socio-cultural spatial characteristics , and 30 students or 85.71% were able to conclude the spatial pattern of their area.Thus, the use of the Google Maps application in interpreting images of socio-cultural spatial patterns has the potential to improve students' ability to interpret spatial patterns that are spread out, clustered and elongated, but further efforts are still needed to increase the number of students who achieve adequate interpreting criteria. This research has implications that learning approaches involving interactive applications such as Google Maps can be an effective alternative in developing students' interpreting skills in the field of geography.
Utilisation De Moustiquaire Imprégnée D’Insecticide A Longue Durée D’action Sur La Prévalence De Paludisme Dans La Zone De Sante Karawa
Authors: NENGOWE Isaac AKUGBANGA , ONASAKA Léon SHONGO , MAZONGELE Baudouin MOGBOTO , MANGBANGA Marcel LIBITO , MABONDA Gérard LIKOMA
Published: April 2024

Evaluer l’efficacité de l’utilisation des moustiquaires imprégnées d’insecticide à longue durée sur la prévalence du  paludisme avant et après la distribution des MIILDA dans les ménages. La quantité de MIILDA reçue par le Bureau central de la Zone de santé a été de 149037 pièces et quantité distribuée était 148119, taux de couverture en MIILD a été de 99,4 %. Une étude d’évaluation, recherche documentaire a été menée auprès de  288 responsables. Les parents dormaient sous la MIILDA plus que les enfants de 0 à 5 ans, 86,2% et les enfants 10,3 %. La prévalence du paludisme avant la distribution des MIILDA était de 6 % contre une prévalence de 4,6%. La létalité avant la distribution a été 2% contre 0,7%.
Utilisation De La Consultation Prénatale Dans Les Structures De Soins De L’Armée Du Salut A Kinshasa De 2020 A 2022
Authors: NSITA ZAYA-NSITA Par Bienvenu , NZITA KIKHELA Paul Denis , MIAKALA mia NDOLO Jean-Honoré , KIYOMBO MBELA Guillaume
Published: April 2024

Malgré des forts investissements faits pour les soins prénatals dans les pays en développement comme en RDC, les femmes n’utilisent pas toujours de façon optimale les services qui leur sont offerts. En effet, le taux d’utilisation de la consultation prénatale (CPN) reste très faible : seulement 35,93% des femmes ont réalisé au moins les 4 visites prénatales en 2022(DHS2). Il est donc de bonne politique, plusieurs temps après, que des états de lieux soient faits pour estimer contribuer à l’amélioration de la santé maternelle.Ainsi, dans cette recherche théorique, qui vise à vérifier et décrire le niveau d’utilisation de la CPN dans les structures de soins salutistes de 2019 à 2022 ; il se dégage que l’utilisation de la CPN dans le réseau sanitaire salutiste, partenaire important du système national de santé, reste encore faible avec un taux moyen de CPN 4 allant de 14 à 22% entre 2019 et 2022. Il faut reconnaître que les structures qui disposent d’une maternité sont mieux utilisées en CPN, soit La maternité de BOMOI avec plus de 150% et CS AMBA avec plus de 26% de taux d’utilisation de CPN4. En outre, les conditions socio-économiques des femmes seraient une condition indispensable de l'utilisation de la CPN.