bluuebunny/crossref_metadata_2025 huggingface dataset:
Pemanfaat Edmodo Sebagai Media Pembelajaran Pendidikan Pancasila dan Kewarganegeraan di SMK Negeri 1 Dompu
Authors: Fitriani  , Faujiah
Published: June 2022

This study aims to determine the extent of the use of Edmodo as a Learning Media for Pancasila and citizenship education in SMK Negeri 1 Dompu. The method used in writing this article is a descriptive qualitative method with data collection techniques, namely centralized interviews and document/text studies. The results of this paper show that Edmodo is a free personal social networking platform that resembles Facebook and is used as a learning medium by teachers and students at SMK Negeri 1 Dompu. The existence of learning media not only helps students understand the learning material, but the use of learning media makes it easier for students to carry out learning and can attract students' interest in learning. Pancasila education and citizenship as a subject has a very complex material content. So that there are Edmodo learning media, students can more easily understand the material conveyed by the teacher easily. The existence of Edmodo as a learning medium in Pancasila and Citizenship Education enables students to gain knowledge and skills in using it. In addition, Edmodo as a learning media can offer convenience for its users.
Pemahaman Guru Bahasa Indonesia SMP, SMPIT, dan MTs tentang Pembelajaran Bahasa Indonesia di Kecamatan Sekongkang Kabupaten Sumbawa Barat
Authors: Fahmi Fahlizi  , Johan Mahyudi  , Burhanuddin
Published: June 2022

Penelitian ini bertujuan untuk memperoleh informasi mengenai pemahaman guru bahasa indonesia SMP, SMPIT, dan MTs di Kecamatan Sekongkang Kabupaten Sumbawa Barat terhadap pembelajaran bahasa Indonesia berbasis teks. Jenis penelitian ini merupakan penelitian deskriptif dengan menggunakan pendekatan kualitatif dan kuantitatif. Sasaran dalam penelitian ini adalah guru bahasa Indonesia SMP, SMPIT, dan MTs di Kecamatan Sekongkang Kabupaten Sumbawa Barat. Metode yang digunakan dalam proses pengumpulan data dalam penilitian ini yaitu metode simak dan metode cakap. Sedangkan metode yang digunakan dalam analisis data adalah metode padan intralingual teknik HBB, HBS, dan HBSP. Berdasarkan hasil analisis diperoleh hasil bahwa pemahaman guru bahasa Indonesia SMP, SMPIT, dan MTs terhadap pembelajaran bahasa Indonesia berbasis teks berkategori sudah mampu memahami jenis-jenis teks berdasarkan genrenya. Dari sudut pandang struktur teks guru juga sudah mampu memahami struktur teks berdasarkan genrenya. Pemahaman   guru bahasa Indonesia SMP, SMPIT, dan MTs terhadap pembelajaran bahasa Indonesia berbasis teks kurang mampu memahami penggunaan piranti kebahasaan dalam teks. Dan terakhir, pemahaman guru bahasa Indonesia SMP, SMPIT, dan MTs terhadap pembelajaran bahasa Indonesia berbasis teks sudah mampu memahami tujuan sosial dalam teks, karena sebagian besar responden mampu mendeskripsikan pemahamannya dalam teks berdasarkan genrenya.
Maden Sahasının İnsansız Hava Aracı Yardımıyla Fotogrametrik Yöntemle Haritalanması
Authors: KABADAYI Adem
Published: June 2022

Uzaktan algılama ve fotogrametri tekniği yardımıyla üretilen veriler her alanda kullanılmaktadır. Teknolojinin gelişmesiyle birlikte farklı bir platform olarak insansız hava araçları (İHA) ile veriler üretilmeye başlandı. Özellikle küçük alanlarda tercih edilmesinde tekrarlanabilir uçuş kabiliyeti, hızı, yüksek çözünürlüğü ve düşük maliyeti gibi nedenler önemli rol oynamaktadır. Ayrıca insan ulaşımında güçlük çekilen alanlarda, kayalık ve eğimin çok yüksek olduğu alanlarda da İHA'lar etkin bir şekilde kullanılmaktadır. Optik hataları (eğrilik, döndürme ve yükseklik farkı gibi) fotogrametri tekniği ile ortadan kaldırarak ve dikey izdüşüm haline getirerek 3 boyutlu, koordineli sayısal veriler üretilmektedir. Bu çalışmada, açık maden ocağında İHA tabanlı haritalama uygulaması yapılmış ve İHA uygulamalarının avantajlarına yer verilmiştir. Bu kapsamda İHA fotogrametrisi ile üretilen ortofoto haritalar ve Sayısal Yükseklik Modelleri (DEM) verileri yardımıyla açık maden ocağının haritalanması gerçekleştirilmiştir.
Global initiatives on implementation of zero hunger policy
Authors: Kotykova Olena , Babych Mykola , Iagodzinska Anna , Tabatskova Anna
Published: June 2022

Purpose. The study aims to analyze critically the system and functions of specialized agencies, programs and United Nations (UN) funds that ensure the implementation of the second goal of sustainable development (GSD2), to identify the components of global initiatives for the successful implementation of the Zero Hunger Policy.

Methodology / approach. The methodological approach of the study are theoretical provisions and practical recommendations for the formation of the food supply system, economic theory, which determines the patterns of food distribution, scientific works of domestic and foreign scientists on sustainable development of the agricultural sector to achieve Zero Hunger. The following methods were used in the research process: statistical (regression analysis of the assessment of factor’s impact on the level of daily energy value of food consumed in households in Ukraine), monographic (mechanism of GSD2 implementation in the global dimension), historical method (the UN’s composition and function in guaranteeing GSD2 implementation), systematic analysis (composition and roles of international institutions within the United Nations in guaranteeing GSD2 implementation), direct analysis and synthesis (areas of FAO’s activities in ensuring the implementation of GSD2 at the national level) etc.

Results. The study found that global initiatives for successful implementation of the Zero Hunger Policy are based on three components: regulatory support, the activities of international organizations coordinated by the UN, and the implementation of the GSD2 framework and programs at the national level, which support most countries across the globe interaction with the Food and Agriculture Organization (FAO).

Originality / scientific novelty. Theoretical provisions regarding global initiatives for the implementation of Zero Hunger Policy have further developed: the main functions of specialized agencies, programs and UN funds that ensure the implementation of GSD2 were systematized, the degree of their spread and influence was determined; it was proved that FAO had a significant potential comparative advantage in assisting countries to meet new challenges in GSD2 monitoring; it was found that the activities of FAO together with partners to ensure global processes for the implementation of GSD2 include different areas.

Practical value / implications. The obtained results are important for building a network of institutional and international cooperation for the successful implementation of Zero Hunger government policies.
The Effect Of Work Motivation And Knowledge Management On Increasing Innovativeness
Authors: Budi Santoso Arief , Moeins Anoesyrwan , Sunaryo Widodo
Published: June 2022

This study aims to analyze the effect of work motivation and knowledge management on increasing the innovation of ASN at the Central Ministry of Transportation. The number of samples in this study were 249 respondents using the slovin technique from all units in the Ministry of Transportation. Data was collected using questionnaires, observations and interviews with related parties. The data analysis technique used is the mix method with multiple linear regression analysis and indicator analysis.The results showed that the variables of Work Motivation and knowledge management partially and simultaneously had a positive effect on Employee Innovativeness at a significance level of 0.05 with a regression coefficient of respectively.The value of the regression equation is Y 42.013 0.490X1 0.166X 2 , this indicates that an increase in one level of Work Motivation will result in an increase in Innovativeness of 0.528 at a constant 42.013, and each increase in one level of Knowledge Management will result in an increase in Innovativeness 0.132 at a constant 42.013. With an adjusted R-Square value of 0.282, it means that the effect is 28.2%. Thus, strengthening work motivation and knowledge management together with innovation will increase employee innovativeness.
Ledare
Authors: Svenungsson Jayne
Published: June 2022

N/A
Åke Gafvelin & Lapo Lappin (red.), Filosofi och pandemi
Authors: Appelros Erica
Published: June 2022

N/A
Johannes Ljungberg, Alexander Maurits & Erik Sidenvall (red.), Cultures in Conflict: Religion, History and Gender in Northern Europe c. 1800–2000
Authors: Nausner Michael
Published: June 2022

N/A
Phytochemical screening and in vivo evaluation of anti-inflammatory potential of methanolic extract of Gleditsia triacanthos
Authors: Belkhodja Hamza , Saidi Imane , Mehali Soumia , Zizi Fetta
Published: June 2022

Plants contain many phytochemical constituents that show various biological activities. The primary objective of this study is to determine the bioactive compounds of the extract of the pods (fruits) of Gleditsia triacanthos (honey locust); which is widely used in medicine. In the second step, the anti-inflammatory activity of these compounds was determined in vivo on Wistar rats. Phytochemical screening tests showed that the extracts of G. triacanthos are rich in a few groups mainly: total tannins, flavonoids, coumarins and saponosids. The results of the quantitative analysis showed that the methanolic extract is rich in polyphenolic compounds with significant contents of the total polyphenols of 14.73 ± 2.51 mg GAE / g, flavonoids of 9.65 ± 0.52 mg QE / g and condensed tannins of 6.95 ± 2.64 mg CE / g. The results of the in vivo evaluation of anti-inflammatory activity showed that methanolic extract resulted in a reduction in inflammatory reaction in the dextran induction model. It is manifested by an inhibition percentage of inflammation ranging from 6.56 to 10.76%. The present study showed that extract of G. triacanthos has an anti-inflammatory activity justifying their use in traditional medicine. It is therefore of considerable therapeutic interest as an alternative compound for the prevention of inflammation.
Comparative Study of the Environmental Impact Assessment System in the State of Kuwait with International Best Practice using Gap Analysis Approach
Authors: Al-Hamdan Aisha Salem , Abdo Anwar Sheekheldeen , Al-Sammak Amir
Published: June 2022

This study addresses the issue of the Environmental Impact Assessment (EIA)in the State of Kuwait, which has become inherent in many development projects. Numerous international and local institutions require assessment of environmental impacts prior to final approval of project implementation. In addition, item number (1) of Law No. 16 of 1996 amended provisions of Law No. 21 of 1995 issued by the General Authority for Environment stipulates the need for an environmental impact assessment, which became incumbent on everyone before the implementation and operation of any facility, whether industrial or recreational. The study aims to evaluate the methodology of the Kuwaiti Environmental Impact Assessment system, with regards to its stages and mechanism of follow-up procedures. And to compare it with the components, methods, criteria and policies of the current best global practices implemented by the World Bank and environmental impact assessment systems in Bahrain, Sultanate of Oman and Egypt. The study aims also to identify deficiencies and policy draw backs of EIA system in Kuwait, and to propose procedures that improve the application of environmental impact assessment methodologies. To achieve the objectives of the study an analysis of the data gathered from reports, scientific assessments, as well as from private consultancy offices was performed. The use of Gap approach enabled the researchers to identify the various gaps and limitations in the current practices and application of EIA procedures in the State of Kuwait. The EIA procedures and policies of the World Bank were the basic references of the study. The findings of the analysis show that: there is a gap between the environmental policies in Kuwait and how thoroughly these policies are applied in the field. This gap led to an imbalance in the practice of environmental impact assessment procedures. Public participation was weak in the stages (Scoping and Review) of environmental impact assessment. Participation is considered an effective part of the environmental assessment planning processes. The study proposed several recommendations for improving the EIA system in the State of Kuwait including: preparation of new procedural guidelines that will provide the basis to be applied by the General Authority for Environment during the audit of the environmental impact assessment reports, up-grading of the consultancy offices and encourage the active participation of the public in the stages of environmental impact assessment planning processes.
Trend of Hilsa Shad, Tenualosa ilisha Fishery in Iraqi Marine Waters Northwest Arabian Gulf
Authors: Mohamed Abdul Razak Mahmoud , Qasim Audai Mohamed Hassan
Published: June 2022

The trend of Hilsa shad Tenualosa ilisha fishery for the artisanal sector in the Iraqi marine water, Northwest of the Arabian Gulf was described for the period from November 2012 to October 2013. The data on shad landing, interviews and a questionnaire for the fishermen as well as demo fishing were attained. Shad landings varied from 4t in February to 95t in April. Shad amounts formed 11.44% of the total catch Shad landing correlated negatively with salinity of water. The catch per unit of effort of shad for fishermen who was involved in the questionnaire ranged between 1.3-5.1 kg/h/1000m to 0.02-3.42 kg/h/1000m for demo fishing. There are several reasons behind the proposed reduction in shad landings in recent years, including the decline in discharges of Shatt Al-Arab River, overfishing and no regulations to protect and manage marine resources
Developing and Implementing a Model to Evaluate the Effect of Technological Changes on Productivity
Authors: Abdel-Razek Refaat Hassan , Sayyar Reem , Suliman Saad
Published: June 2022

Productivity is an important indicator of organizational performance and a prerequisite for national development. However, there are few published empirical studies that have provided and implemented a methodology to quantify the impact of technology changes on total productivity and partial productivities. This paper evaluates and quantifies the effects of technological changes on the productivity of (BALEXCO), as the largest aluminum extrusion company in Bahrain and one of the largest in the Arab countries. The technological changes in the company’s three extrusion presses 1, 2 and 3 - that were established in 1976, 1994 and 1996 respectively, were analyzed, compared and identified. Data covering a period of ten years were collected and a differentiation technology model capable of evaluating the effect of technology changes on productivity was developed, validated and implemented. The results showed that the total and partial productivities improved dramatically as technologies were upgraded. It is concluded that the technology improvements have had positive effects on the total and partial productivities and that the developed model is capable of evaluating the effect of technological changes on total and partial productivities.
The Effects of Apelin on Myocardial Function after Resuscitation of Hemorrhagic Shock in Rats
Authors: Soliman Mona
Published: June 2022

Apelin is a novel peptide that has recently been established as the only known ligand for the APJ receptor. Apelin has an important regulatory role in cardiovascular homeostasis. Despite recent advances in the understanding of the cardiovascular effects of the apelin-APJ system, the myocardial protective effects of treating with apelin before resuscitation following hemorrhagic shock has not been investigated. The present study investigated the myocardial protective effects of apelin on preventing myocardial contractile dysfunction after hemorrhagic shock.

Methods: Male Sprague Dawley rats (300-350 gm) were assigned to 3 experimental groups (n= 6 per group): Normotensive rats (N); Hemorrhagic shock rats (HS); Hemorrhagic shock rats treated with apelin-13 (HS-AP). Rats were hemorrhaged over 60 min to reach a mean arterial blood pressure of 40 mmHg. Rats were treated with 1 ml of 10 nm /L apelin-13 intra-arterially after 60 min hemorrhagic shock. Resuscitation was performed in vivo by the reinfusion of the shed blood for 30 min to restore normo-tension. Left ventricular contractile function was measured in the isolated hearts following hemorrhage and in vivo resuscitation using the Langendorff apparatus. Results. Hemorrhagic shock rats treated with AP exhibited a significant increase in left ventricular generated pressure LVGP (111.20 ± 9.19 mmHg) and + dP/dtmax (589.6 ± 110.68 mmHg/sec) compared with the untreated group.

Conclusion.Treatment with apelin before resuscitation improved myocardial contractile function in a hemorrhagic shock model in rats.
Semi Automated Rack Collection of Brachyuran Crab Zoea in a Spawner Unit
Authors: Al-Aidaroos Ali Mohamed , Kitto Muthunayagam Rufus
Published: June 2022

The design and operation of a small research scale berried female rearing system for the collection of brachyuran first formed zoea in high quality and quantity are described in the present paper. The envisaged novel zoea collection system discloses a tray shelf system with an aqua terrarium on the upper shelf with provision of an accessible dry zone for the crab facilitating movement of between the body of water and the terrarium gravel pile. As larval aggregation in the bottom of the tanks will certainly cause ‘‘tangling’’, damage larval appendages or even the death of the larvae, this immediate auto separation through a photo exposure regime design holds promise.
Toxic Effect of Benzene, Toluene and Formaldehyde to Response Behavior of Nematode (Caenorhabditis elegans) using Image Processing System
Authors: Mortuza Golam , Al-Misned Fahad Abdulmohsin
Published: June 2022

Toxic Response behavior of nematode by exposure toxic chemicals is assessed using automatic recognition of line movement through image processing system under the microscope. The nematode Caenorhabditis elegans was exposed in different toxic chemicals to determine the toxic response. Toxicity of formaldehyde, benzene and toluene might affect on the movement behavior of nematodes. Toxic response behavior of nematode in three toxic chemicals have found to be similar. This study is identified some sequential line-movements of nematode that could be used as an alternative tool for the real-time monitoring of toxic substances in aquatic ecosystems in the future.
Japan-France Relationship under Abe: An Analysis of Security Trends for the Indo-Pacific Region
Authors: Dello Spedale Venti Mattia
Published: June 2022

Since the Meiji Restoration, Japan and France have experienced a special relationship led by strong cultural and economic ties. The present paper analyses their relationship during the second administration of the former prime minister of Japan, Abe Shinzō. The paper focuses on their respective security trends. Security is studied as a(n inter-)subjective and dynamic process. For this reason, the Copenhagen School’s ‘securitisation’ will serve as a theoretical framework to investigate discursive and material practices of both nations. The article has two complementary goals. First, it studies whether and to what extent securitised issues and securitising moves of Japan and France converge to their approach to the Indo-Pacific region. To this end, the article extensively examines official documents and speeches of the two governments, including Japan’s annual ‘White Paper’ and ‘Diplomatic Bluebook’, and France’s strategic documents. Second, by examining transformations of their mutual relations, the paper investigates whether Japan and France have improved their synergy, especially in the defense domain, during Abe’s second administration. The paper concludes that Japan and France have a similar view on the security environment of the Indo-Pacific and, for this reason, they share similar concerns and interests. The result was an improvement of their relations which became increasingly more symbiotic towards the region.
OBSERVASI PENGAWAS SEKOLAH TERHADAP PENERAPAN MODEL PEMBELAJARAN SQ3R DI SMAN 1 BELINYU BANGKA
Authors: AMIRULLAH AMIRULLAH
Published: June 2022

From the analysis, it is found that the SQ3R learning model has a positive impact on improving teacher performance, which is marked by an increase in student learning mastery at SMAN 1 Belinyu, Bangka Belitung Regency in each stage, namely stage I (66.67%), stage II (77.78%), stage III (88.89%). And the application of the SQ3R model learning method has a positive influence, namely it can increase the learning motivation of SMAN 1 Belinyu Bangka students, Bangka Bangka Belitung Regency which is shown by the results of interviews with several students, the average answer states that students are interested and interested in the SQ3R learning method so that they be motivated to learn. To implement the SQ3R model learning method requires sufficient preparation, so the teacher must be able to determine or choose a topic that can actually be applied by learning the SQ3R model in the teaching and learning process so that optimal results are obtained.
ABSTRAKDari analisis diperoleh Pembelajaran  model  SQ3R memiliki dampak positif dalam meningkatkan Kinerja Guru yang ditandai dengan peningkatan ketuntasan belajar siswa SMAN 1 Belinyu Kabupaten Bangka  Bangka Belitung dalam setiap tahap, yaitu tahap I (66,67%), tahap II (77,78%), tahap III (88,89%). Dan Penerapan metode pembelajaran  model  SQ3R mempunyai pengaruh positif, yaitu dapat meningkatkan motivasi belajar siswa SMAN 1 Belinyu Bangka  Kabupaten Bangka  Bangka Belitung yang ditunjukan dengan hasil wawancara dengan beberapa siswa, rata-rata jawaban menyatakan bahwa siswa tertarik dan berminat dengan metode pembelajaran  model  SQ3R sehingga mereka menjadi termotivasi untuk belajar. Untuk melaksanakan metode pembelajaran  model  SQ3R memerlukan persiapan yang cukup matang, sehingga guru harus mampu menentukan atau memilih topik yang benar-benar bisa diterapkan dengan  pembelajaran model  SQ3R dalam proses belajar mengajar sehingga diperoleh hasil yang optimal.
Daily evolution of VOCs in Beijing: chemistry, emissions, transport, and policy implications
Authors: Panagi Marios , Sommariva Roberto , Fleming Zoë L. , Monks Paul S. , Lu Gongda , Marais Eloise A. , Hopkins James R. , Lewis Alastair C. , Zhang Qiang , Lee James D. , Squires Freya A. , Whalley Lisa K. , Slater Eloise J. , Heard Dwayne E. , Woodward-Massey Robert , Ye Chunxiang , Vande Hey Joshua D.
Published: June 2022

Abstract. Volatile organic compounds (VOCs) are important precursors to the formation of ozone (O3) and secondary organic aero-sols (SOA) and can also have direct human health impacts. Generally, given the range and number of VOC species, their emissions are poorly characterised. The VOC levels in Beijing during two campaigns (APHH) were investigated using a dispersion model (NAME), and a chemical box model (AtChem2) in order to understand how chemistry and transport affect the VOC concentrations in Beijing. Emissions of VOCs in Beijing and contributions from outside Beijing were modelled using the NAME dispersion model combined with the emission inventories and were used to initialize the AtChem2 box model. The modelled concentrations of VOCs from the NAME-AtChem2 combination were then compared to the output of a chemical transport model (GEOS-Chem). The results from the emission inventories and the NAME air mass pathways suggest that industrial sources to the south of Beijing and within Beijing both in summer and winter are very important in con-trolling the VOC levels in Beijing. A number of scenarios with different nitrogen oxides to ozone ratios (NOx / O3) and hydroxyl (OH) levels were simulated to determine the changes in VOC levels. In Beijing over 80 % of VOC are emitted locally during winter, while during summer about 35 % of VOC concentrations (greater for some individual species) are transported into Beijing from the surrounding regions. Most winter scenarios are in good agreement with daily GEOS-Chem simulations, with the best agreements seen for the modelled concentrations of ethanol, benzene and propane with correlation coefficients of 0.67, 0.63 and 0.64 respectively. Furthermore, the production of formaldehyde within 24 hours air travel from Beijing was investigated, and it was determined that 90 % of formaldehyde in the winter and 83 % in the summer in Beijing is secondary, produced from oxidation of non-methane volatile organic compounds (NMVOCs). The benzene / CO and toluene / CO ratios during the campaign is very similar to the ratio derived from literature for 2014 in Beijing, however more data are needed to enable investigation of more species over longer timeframes to determine whether this ratio can be applied to predicting VOCs in Beijing. The results suggest that VOC concentrations in Beijing are driven predominantly by sources within Beijing and by local atmospheric chemistry during the winter, and by a combination of transport and chemistry during the summer. Moreover, the relationship of the NOx / VOC and O3 during winter and summer shows the need for season-specific policy measures.
Aerosol activation characteristics and prediction at the central European ACTRIS research station Melpitz, Germany
Authors: Wang Yuan , Henning Silvia , Poulain Laurent , Lu Chunsong , Stratmann Frank , Wang Yuying , Niu Shengjie , Pöhlker Mira L. , Herrmann Hartmut , Wiedensohler Alfred
Published: June 2022

Abstract. Understanding aerosol particle activation is essential for evaluating aerosol indirect effects (AIEs) on climate. Long-term measurements on aerosol particle activation help to understand the AIEs and narrow down the uncertainties of AIEs simulation; however, they are still scarce. In this study, more than 4-year aerosol comprehensive measurements were utilized at the central European research station Melpitz, Germany, to gain insight into the aerosol particle activation and provide recommendations on improving prediction. The overall characteristics of aerosol particle activation at Melpitz are first summarized. For supersaturation (SS) levels of 0.1 %, 0.2 %, 0.3 %, 0.5 %, and 0.7 %, the mean cloud condensation nuclei (CCN) number concentration (NCCN) increases with the increase of SS from 513 to 2477 cm-3, which represents 11 % to 52 % of the total particle number concentration with diameter ranging from 10 to 800 nm, while the hygroscopicity factor (k) and the critical diameter (Dc) decrease from 0.28±0.08 (mean value ± one standard deviation) to 0.20±0.09 and from 177±19 to 54±8 nm, respectively. Aerosol particle activation is highly variable across seasons, especially at low SS conditions. At SS = 0.1 %, the seasonal mean NCCN is 681 cm-3 in winter, which is almost twice higher than the summer value (347 cm-3); the seasonal mean activation ratio (AR) in winter (0.18) is three times higher than the summer one. Subsequently, size dependency of both k and the state of mixing were investigated. As the particle diameter (Dp) increases, k increases at Dp of ~40 to 100 nm and almost stays constant at Dp of 100 to 200 nm, whereas the degree of the external mixture keeps decreasing at Dp of ~40 to 200 nm. The relationships of k vs. Dp and mixture degree vs. Dp were both fitted well by the power-law function for each season. Finally, we recommend applying the k - Dp power-law fit for NCCN prediction, which can narrow down the median uncertainty within 10 % for different SS conditions and seasons at Melpitz; it also could be applied to predict NCCN at other rural and continental regions with a similar aerosol background. Additionally, the mean k value over Dp of 100 to 200 nm also works well on the NCCN prediction when SS is less than 0.2 %.
A sulfuric acid nucleation potential model for the atmosphere
Authors: Johnson Jack S. , Jen Coty N.
Published: June 2022

Abstract. Observations over the last decade have demonstrated that the
atmosphere contains potentially hundreds of compounds that can react with
sulfuric acid to nucleate stable aerosol particles. Consequently, modeling
atmospheric nucleation requires detailed knowledge of nucleation reaction
kinetics and spatially and temporally resolved measurements of numerous
precursor compounds. This study introduces the Nucleation Potential Model
(NPM), a novel nucleation model that dramatically simplifies the diverse
reactions between sulfuric acid and any combination of precursor gases. The NPM
predicts 1 nm nucleation rates from only two measurable gas concentrations,
regardless of whether all precursor gases are known. The NPM describes sulfuric
acid nucleating with a parameterized base compound at an effective base
concentration, [Beff]. [Beff] captures the ability of a compound
or mixture to form stable clusters with sulfuric acid and is estimated from
measured 1 nm particle concentrations. The NPM is applied to experimental and
field observations of sulfuric acid nucleation to demonstrate how
[Beff] varies for different stabilizing compounds, mixtures, and
sampling locations. Analysis of previous field observations shows distinct
differences in [Beff] between locations that follow the emission
sources and stabilizing compound concentrations for that region. Overall,
the NPM allows researchers to easily model nucleation across diverse
environments and estimate the concentration of non-sulfuric acid precursors
using a condensation particle counter.
Observation of secondary ice production in clouds at low temperatures
Authors: Korolev Alexei , DeMott Paul , Heckman Ivan , Wolde Mengistu , Williams Earle , Smalley David J. , Donovan Michael F.
Published: June 2022

Abstract. Ice particles play an important role in precipitation formation and radiation balance. Therefore, an accurate description of ice initiation in the atmosphere is of great importance for weather prediction models and climate simulations. Despite the abundance of ice crystals in the atmosphere, the mechanisms for their formation remain not well understood. There are two major sets of mechanisms of ice initiation in the atmosphere: primary nucleation and secondary ice production. Secondary ice production occurs in the presence of preexisting ice, which results in an enhancement of the concentration of ice particles. Until present, secondary ice production was mainly associated with the rime-splintering mechanism, known as the Hallett-Mossop process, which is active in a relatively narrow temperature range from -3 °C to -8 °C. The existence of the Hallett-Mossop process was well supported by in-situ observations. The present study provides the first in-situ observation of secondary ice production at temperatures as low as -27 °C, which is well outside the range of the Hallett-Mossop process. This observation expands our knowledge of the temperature range of initiation of secondary ice in clouds. The obtained results are intended to stimulate laboratory and theoretical studies to develop physically based parameterizations for weather prediction and climate models.
Impact of the sampling procedure on the specific surface area of snow measurements with the IceCube
Authors: Martin Julia , Schneebeli Martin
Published: June 2022

Abstract. The specific surface area (SSA) of snow is directly measured by X-ray computed tomography or indirectly using the reflectance of near-infrared light. The IceCube is a well-established spectroscopic instrument using a near-infrared wavelength of 1310 nm. We compared the SSA of six snow types measured with both instruments. The IceCube measured significantly higher values with a relative percentage difference between 20 to 52 % for snow types with an SSA between 5 to 25 m2 kg−1. There is no significant difference for snow with an SSA between 30 to 80 m2 kg−1. The difference is statistically significant between snow types but not uniquely related to the SSA. We suspected that artificially created particles were the source of the difference. These were sampled, measured and counted. Numerical simulations with radiation transfer solver TARTES confirm the observation.
Rescue and quality control of historical geomagnetic measurement at SheShan Observatory, China
Authors: Zhang Suqin , Fu Changhua , Wang Jianjun , Zhu Guohao , Chen Chuanhua
Published: June 2022

Abstract. The Sheshan geomagnetic observatory (IAGA code SSH), China was built in Xujiahui, Shanghai in 1874 and moved to Sheshan, Shanghai at the end of 1932. So far, SSH has a history of nearly 150 years. It is one of the earliest geomagnetic observatory in China and one of the geomagnetic stations with the longest history in the world.In this paper, we present the rescue and quality control of the historical data at Sheshan observatory (SSH) from 1933 to 2019. The rescued data are the absolute hourly mean values of D, H and Z components. Some of these data are paper-based records, and some are stored in a floppy disk in BAS, DBF, ACCESS and other file formats. After digitization and format transformation, we imported the data into the Toad database to achieve the unified data management. We performed statistics of continuity rate, visual analysis, outliers detects and data correction on the stored data. Then we conducted the consistency test of daily variation and secular variation by comparing the corrected data with these of the reference observatory data, and the computational data of the COV-OBS model, respectively. The consistency test revealed fairly good agreement. However, the individual data should be used with caution, because these data are suspicious values, but there is not any explanation or change registered in the available metadata and logbooks. Finally we present an example of the datasets in discriminating geomagnetic jerks. The digitized and quality-controlled AHMVs data are available at: https://doi.org/10.5281/zenodo.6584285 (Zhang et al, 2022).
Linear stability analysis of plane beds under flows with suspended load
Authors: Ohata Koji , Naruse Hajime , Izumi Norihiro
Published: June 2022

Abstract. Plane beds develop under flows in fluvial and marine environments; they are recorded as parallel lamination in sandstone beds, such as those found in turbidites. However, whereas turbidites typically exhibit parallel lamination, they rarely feature dune-scale cross lamination. Although the reason for the scarcity of dune-scale cross-lamination in turbidites is still debated, the formation of dunes may be dampened by suspended load. Here, we perform, for the first time, linear stability analysis to show that flows with suspended load facilitate the formation of plane beds. For a fine-grained bed, suspended load can promote the formation of plane beds and dampen the formation of dunes. These results of theoretical analysis were verified with observational data of plane beds under open-channel flows. Our theoretical analysis found that suspended load promotes the formation of plane beds, which suggests that the development of dunes under turbidity currents is suppressed by the presence of suspended load.
Variational inverse modeling within the Community Inversion Framework v1.1 to assimilate δ13C(CH4) and CH4: a case study with model LMDz-SACS
Authors: Thanwerdas Joël , Saunois Marielle , Berchet Antoine , Pison Isabelle , Vaughn Bruce H. , Michel Sylvia Englund , Bousquet Philippe
Published: June 2022

Abstract. Atmospheric CH4 mole fractions resumed their increase in 2007 after a plateau during the 1999–2006 period, indicating relative changes in the sources and sinks. Estimating sources by exploiting observations within an inverse modeling framework (top-down approaches) is a powerful approach. It is, nevertheless, challenging to efficiently differentiate co-located emission categories and sinks by using CH4 observations alone. As a result, top-down approaches are limited when it comes to fully understanding CH4 burden changes and attributing these changes to specific source variations. δ13C(CH4)source isotopic signatures of CH4 sources differ between emission categories (biogenic, thermogenic, and pyrogenic) and can therefore be used to address this limitation. Here, a new 3-D variational inverse modeling framework designed to assimilate δ13C(CH4) observations together with CH4 observations is presented. This system is capable of optimizing both the emissions and the associated source signatures of multiple emission categories at the pixel scale. To our knowledge, this represents the first attempt to carry out variational inversion assimilating δ13C(CH4) with a 3-D chemistry transport model (CTM) and to independently optimize isotopic source signatures of multiple emission categories. We present the technical implementation of joint CH4 and δ13C(CH4) constraints in a variational system and analyze how sensitive the system is to the setup controlling the optimization using the LMDz-SACS 3-D CTM. We find that assimilating δ13C(CH4) observations and allowing the system to adjust isotopic source signatures provide relatively large differences in global flux estimates for wetlands (−5.7 Tg CH4 yr−1), agriculture and waste (−6.4 Tg CH4 yr−1), fossil fuels (+8.6 Tg CH4 yr−1) and biofuels–biomass burning (+3.2 Tg CH4 yr−1) categories compared to the results inferred without assimilating δ13C(CH4) observations. More importantly, when assimilating both CH4 and δ13C(CH4) observations, but assuming that the source signatures are perfectly known, these differences increase by a factor of 3–4, strengthening the importance of having as accurate signature estimates as possible. Initial conditions, uncertainties in δ13C(CH4) observations, or the number of optimized categories have a much smaller impact (less than 2 Tg CH4 yr−1).
Rapid fragmentation of Thwaites Eastern Ice Shelf
Authors: Benn Douglas I. , Luckman Adrian , Åström Jan A. , Crawford Anna J. , Cornford Stephen L. , Bevan Suzanne L. , Zwinger Thomas , Gladstone Rupert , Alley Karen , Pettit Erin , Bassis Jeremy
Published: June 2022

Abstract. Ice shelves play a key role in the dynamics of marine ice sheets by
buttressing grounded ice and limiting rates of ice flux to the oceans. In
response to recent climatic and oceanic change, ice shelves fringing the
West Antarctic Ice Sheet (WAIS) have begun to fragment and retreat, with
major implications for ice-sheet stability. Here, we focus on the Thwaites
Eastern Ice Shelf (TEIS), the remaining pinned floating extension of
Thwaites Glacier. We show that TEIS has undergone a process of fragmentation
in the last 5 years, including brittle failure along a major shear zone,
formation of tensile cracks on the main body of the shelf, and a release of
tabular bergs on both the eastern and western flanks. Simulations with the
Helsinki Discrete Element Model (HiDEM) show that this pattern of failure is
associated with high backstress from a submarine pinning point at the distal
edge of the shelf. We show that a significant zone of shear, upstream of the
main pinning point, developed in response to the rapid acceleration of the
shelf between 2002 and 2006, seeding damage on the shelf. Subsequently,
basal melting and positive feedback between damage and strain rates
weakened TEIS, allowing damage to accumulate. Thus, although backstress on
TEIS has likely diminished over time as the pinning point shrunk,
accumulation of damage has ensured that the ice in the shear zone
remained the weakest link in the system. Experiments with the BISICLES ice-sheet model indicate that additional damage to or unpinning of TEIS is
unlikely to trigger significantly increased ice loss from WAIS, but the
calving response to the loss of TEIS remains highly uncertain. It is widely
recognised that ice-shelf fragmentation and collapse can be triggered by
hydrofracturing and/or unpinning from ice-shelf margins or grounding points.
Our results indicate a third mechanism, backstress triggered failure, that can occur if and when an ice
shelf is no longer able to withstand stress imposed by pinning points. In
most circumstances, pinning points are essential for ice-shelf stability,
but as ice shelves thin and weaken, the concentration of backstress in
damaged ice upstream of a pinning point may provide the seeds of their
demise.
Defining and assessing artistic co-creation: the TRACTION proposal
Authors: Matamala Anna , Soler-Vilageliu Olga
Published: June 2022

This article presents research developed within the framework of the European project TRACTION, which aims to co-create operas in three different environments incorporating technological elements and with the ultimate objective of generating a social transformation. Through 19 interviews carried out in three different countries (Spain, Ireland, Portugal), a map of indicators that can be used to evaluate artistic co-creation is proposed. The value of the proposal is that the indicators are validated through a focus group with representatives from three diverse co-creation processes—in the Raval neighborhood in Barcelona, in different areas of Ireland, in a prison in Leiria—and serve as a general framework for very diverse environments. Likewise, the work contributes to the debate on the concept of co-creation through a thematic analysis of the definitions provided by the different interviewees. Central topics in the thematic analysis of the definitions are: collaboration, participant profile and role, goal and value, origin and development, and ethical and social aspects.
Establishing assessment criteria and breakthrough points for drawing ability
Authors: Hsiao Ying Ma
Published: June 2022

The "ability of realistic drawing" especially realistic drawing ability has been an important measure in assessing the spiritual world of humankind; However, several points in individual teaching strategy remain yet to be clarified in the established practice of group teaching how to draw: 1. How does one assess the artist's skill level? 2. Which abilities should be included in the scale used to assess drawing ability? 3. Of these abilities, which ones can be learned in a short time and which ones require a long time? 4. How does drawing ability evolve to reflect quantitative and qualitative changes as the learning time accumulates? This study attempts to answer the four questions posed above in an analytical and quantifiable way by obtaining empirical data from three drawing experts and four student groups with the aim to establish a set of assessment criteria for drawing ability. With a comprehensive and effective set of assessment criteria established for drawing ability, that the contributions from this study could enable teachers to assist learners not only save time on guesswork, but also provide tailored and specific breakthrough teaching strategies.
Club 49, una ventana abierta al descubrimiento de la cultura japonesa
Authors: Gómez-Pradas Muriel
Published: June 2022

La asociación Club 49 surgió en Barcelona a finales de la década de 1940, y fue uno de los elementos clave de reconstrucción y promoción del panorama artístico y cultural de la ciudad, así como un claro ejemplo del circuito de la cultura catalana en el periodo de la dictadura. El principal objetivo de este artículo es mostrar un caso de estudio concreto y exponer como Club 49 fue como una pequeña ventana al exterior, así como revelar que gracias a Eudald Serra (1911-2001) se organizaron algunas exposiciones y conferencias sobre arte japonés en Barcelona durante las décadas de 1950 y 1960. La reconstrucción de una microhistoria que nos permitirá poner en valor la figura de Serra como un verdadero mediador cultural, conectando culturas, creando y organizando espacios de confluencia. Para llevar a cabo esta investigación hemos trabajado con material inédito de archivos personales de diversos miembros de Club 49, que nos ha permitido documentar la génesis de dichas actividades, así como la recepción que tuvieron. Poniéndose así de relieve la importancia del material de ephemera (invitaciones, folletos, etc.) como objetos de memoria en la valoración y reconstrucción de la historia anónima, así como de la práctica cultural del momento.
Panorámica de los envases contemporáneos de vidrio para perfume de origen español
Authors: Villegas-Broncano Mª Ángeles , Pinilla-Gisbert Alejandro
Published: June 2022

Se lleva a cabo un recorrido por las empresas de perfumería de origen español, tanto las ya desaparecidas o absorbidas por otras empresas como las que continúan su trayectoria comercial independiente incluso a nivel internacional, y los envases de vidrio de sus productos más representativos fundamentalmente durante el siglo XX. En base a una metodología bibliográfica complementada con la información disponible en la web y con la observación directa de objetos del entorno próximo de los autores, se estudian las tipologías de los frascos de vidrio, su evolución temporal y su relación con los conceptos asociados a los perfumes y las características culturales del momento. Se discute la importancia del diseño del envase de vidrio y el papel que desempeña en las campañas publicitarias más allá de las propiedades olfativas de los perfumes. La idoneidad del vidrio como material para los envases de los perfumes queda demostrada por su larga trayectoria histórica y artística, que ha permitido y permite una imagen impecable y susceptible de múltiples diseños creativos, a la vez que ofrece las mejores propiedades requeridas para la correcta conservación de los perfumes.
La imagen faltante. Muerte y duelo en la fotografía latinoamericana.
Authors: Roca-Leiva Macarena
Published: June 2022

Reseña de la obra La imagen faltante. Muerte y duelo en la fotografía latinoamericana de Pamela Martínez Rod y Javier Gacharná (2018). Publicaciones de la Universitat de Barcelona. Colección Periodismo Activo 13. Editor Roberto Herrscher. ISBN 978-84-9168-062-8
Bibliotheca Geométrica. Bibliografía histórica para la Geometría Descriptiva y el Dibujo Arquitectónico hasta 2001
Authors: Gámiz-Gordo Antonio
Published: June 2022

Reseña de la obra Bibliotheca Geométrica. Bibliografía histórica para la Geometría Descriptiva y el Dibujo Arquitectónico hasta 2001 de Gentil Baldrich, José María. Universidad de Sevilla, HUM976. Expregráfica. Lugar,Arquitectura y Dibujo, 2021, 2.075 Pp., I.S.B.N.: 978-84-09-36137 https://hdl.handle.net/11441/128665
Aprendizaje humanista a través de la historia
Authors: Chavarría-Aznar M. Ángeles
Published: June 2022

Reseña de la obra Aprendizaje humanista a través de la historia de Penadés, A. (2020). Viaje a la Grecia clásica. Del monte Athos a Termópilas. Córdoba. Almuzara. 380 páginas. ISBN: 978-84-18089-85-5
Umayyad and early Abbasid inscriptions in the Prophet’s Mosque in Medina
Authors: Munt Harry
Published: June 2022

This article offers a translation and discussion of a chapter of a relatively little known late third/ninth- or early fourth/tenth-century text that contains a transcription of the inscriptions that could be seen around the Prophet’s Mosque in Medina after the renovation work undertaken there on the orders of the third Abbasid caliph, Muḥammad al-Mahdī. This text thus adds significantly to our corpus of known inscriptions from early Abbasid imperial monuments. The article discusses the sources of information about these inscriptions in the Prophet’s Mosque, the fate of the Umayyad-era inscriptions in the early Abbasid period, and what the new Abbasid-era inscriptions have to tell us about the Abbasids’ claims to authority in the decades immediately following their seizure of power.