bluuebunny/crossref_metadata_2025 huggingface dataset:
Spatial and Temporal Variations in the Geochemistry of Cauvery River (Tamil Nadu, India) Sediments and its Implication to Weathering
Authors: Nagendra R , Elango L , Vybhav K
Published: February 2021

South-West (SW), North-East (NE) and Post-monsoon Cauvery River sediment geochemistry characterizes the intensity of chemical weathering ascribing to the relative mobility of elements during weathering. The negative correlation between Al2O3% and SiO2% signifies that the sediments are enriched with quartz and, Al2O3% vs. TiO2% relationship deduces the granite and granodiorite are the major source rocks of Cauvery River sediment. The weathering trend of Cauvery River sediments is accounted by the incidence of illite clay minerals. The weathering intensity of SW monsoon sediments (57.73%), NE monsoon sediments (64.17%) and post-monsoon sediments (64.79%) specifies the weak to intermediate intensity of weathering, which is controlled by precipitation. The higher concentration of Ba (459.45-856.95ppm) symbolises the presence of K-feldspar.
Impact of Elevation - Glaciation - Tectonics on landscape characteristics of the watersheds in Bhagirathi valley, Garhwal Himalaya
Authors: Ahmad Sarfaraz , Khan Khatib
Published: February 2021

Terrain attributes of watersheds i.e., mean , maximum, minimum elevation, mean slope elevation, mean aspect, HI (Hypsometrical Integral), Plan and Profile curvature index were determined using ASTER DEM in Bhagirathi basin, Uttaarakhand. These attributes are used in  determine the impact of elevation, glaciations and tectonic processes on terrain characteristics of the watersheds.  The scatter diagrame between altitude and terrain attribute were used to analyse th impact of altitude and impact of glacition is revealed through Box Whisker diagram using moderate and fully glacier watersheds. The results indicated that permanent snowline altitude is important that determine the watershed  density in particular elevation and bear direct relationship with area and degree of glaciations. It is found that slope, STD of elevation in glacier basin, profile and plan curvature, relief influenced by glaciations.
Sedimentological and Geochemical Charectesization of Manaveli and Cuddalore Formations, Puducherry Basin, India
Authors: Mude Shyam Narayan , Yawale Shyam , Choudhari Vishal
Published: February 2021

Sedimentological and Geochemical Charectesization  of Manaveli and Cuddalore Formations, Puducherry Basin, India

 

Shyam N. Mude, Shyam Yawale and Vishal Choudhari

 

Department of Geology, Fergusson College (Autonomous), Pune- 411004, India

Email: shyam.mude@fergusson.edu; shyammude25@yahoo.co.in

 

Abstract: The lithostratigraphically rocks of Puducherry basin (Sub-basin of Cauvery Basin) have been classified as Valudavur, Mettuveli, Karasur, Manaveli, Cuddalore formations in ascending order of deposition. The sedimentological and geochemical studies of sediments from Manavali (Paleocene) and Cuddalore (Mio-Pliocene) formations were carried out to understand grain size variation and distribution of major oxides and trace elements. 

The sieve analysis was used to study grain size variation and on the basis of grain sizes various geo-statistical parameters were calculated to understand depositional environment. The discriminant function analysis of the sediments from the Cuddalore Formation infers that mostly the sedimentation was occurred in fluvio-deltaic environment with incursions of shallow marine environment whereas bivariate plots suggests that the deposition was occurred in riverine to deltaic environment.

The major element geochemistry of the Manaveli and Cuddalore formations have been carried out to understand the provenance, paleoclimate and source area weathering conditions. The values of CIA (Chemical Index of Alteration), CIW (Chemical Index of Weathering), ICV (Index of Compositional Variability) and PIA (Plagioclase Index of Alteration) of the sediments infer high weathering was occurred in source area of sediments for Manaveli and Cuddalore formations.  The ratio (Al2O3+K2O+Na2O)/SiO2 indicate semi-humid climatic conditions during deposition of Cuddalore Formation whereas Manaveli Formation was deposited in semi-arid climatic conditions. The discriminant function diagram (A-CN-K Plot), suggest Quartzose sedimentary provenance for Cuddalore and Mafic igneous provenance for Manaveli Formation.  

 

Keywords:  Grain Size, Geochemistry, Manaveli, Cuddalore, Puducherry Basin
Chemical Weathering, First Cycle Quartz Sand, and its bearing on Quartz Arenite
Authors: Basu Abhijit
Published: February 2021

A self-consistent set of experimentally determined rates of mineral dissolution (Francke, 2009) has been used to estimate the relative loss of common constituents of plutonic igneous rocks that supply quartz to sands to be lithified as first-cycle quartz arenite. A first-order decay equation is used setting the decay constant of calcite to one, which renders the time-steps of loss dimensionless but keeps the relative loss of each mineral constant. Calculations show that 99.33% of pure calcite would dissolve only after 5 time-steps. On a relative scale, it would take about 1250, 900, and 1040 time-steps respectively to reduce the original compositions of quartz-bearing mafic plutonic, granodioritic, and granitic rocks to leave >95% undissolved quartz as residue that will qualify as quartz-sand, the precursor to first-cycle quartz arenite. These are very large numbers indicating that chemical dissolution alone, as in chemical weathering by itself, is not sufficient to generate first-cycle quartz sand; accompanied mechanical weathering is necessary. Therefore, it is necessary to re-evaluate many explicitly stated inferences of warm, humid climate in provenance studies of first-cycle quartz arenites.
Dynamics of the deep chlorophyll maximum in the Black Sea as depicted by BGC-Argo floats
Authors: Ricour Florian , Capet Arthur , D'Ortenzio Fabrizio , Delille Bruno , Grégoire Marilaure
Published: February 2021

Abstract. The deep chlorophyll maximum (DCM) is a well-known feature of the global ocean.
However, its description and the study of its formation are a challenge, especially in the peculiar environment that is the Black Sea.
The retrieval of chlorophyll a (chl a) from fluorescence (Fluo) profiles recorded by Biogeochemical Argo (BGC-Argo) floats is not trivial in the Black Sea, due to the very high content of coloured dissolved organic matter (CDOM) which contributes to the fluorescence signal and produces an apparent increase in the chl a concentration with depth.
Here, we revised Fluo correction protocols for the Black Sea context using co-located in situ high-performance liquid chromatography (HPLC) and BGC-Argo measurements.
The processed set of chl a data (2014–2019) is then used to provide a systematic description of the seasonal DCM dynamics in the Black Sea and to explore different hypotheses concerning the mechanisms underlying its development.
Our results show that the corrections applied to the chl a profiles are consistent with HPLC data.
In the Black Sea, the DCM begins to form in March, throughout the basin, at a density level set by the previous winter mixed layer. During a first phase (April–May), the DCM remains attached to this particular layer.
The spatial homogeneity of this feature suggests a hysteresis mechanism, i.e. that the DCM structure locally influences environmental conditions rather than adapting instantaneously to external factors. In a second phase (July–September), the DCM migrates upward, where there is higher irradiance, which suggests the interplay of biotic factors.
Overall, the DCM concentrates around 45 % to 65 % of the total chlorophyll content within a 10 m layer centred around a depth of 30 to 40 m, which stresses the importance of considering DCM dynamics when evaluating phytoplankton productivity at basin scale.
Calibration of sea ice drift forecasts using random forest algorithms
Authors: Palerme Cyril , Müller Malte
Published: February 2021

Abstract. Developing accurate sea-ice drift forecasts is essential to support decision making of maritime end-users operating in the Arctic. In this study, two calibration methods have been developed for improving 10-day sea-ice drift forecasts from an operational sea-ice prediction system (TOPAZ4). The methods are based on random forest algorithms (supervised machine learning models) and have been trained using either drifting buoy or synthetic-aperture radar observations for the target variables. Depending on the calibration method, the mean absolute error is reduced, on average, between 5.9 % and 8.1 % for the direction, and between 7.1 % and 9.6 % for the speed of sea-ice drift. Overall, the algorithms trained with buoy observations have the best performances when the forecasts are evaluated using drifting buoys as reference. However, there is a large spatial variability in these results, and the algorithms trained with buoy observations have particularly poor performances for predicting the speed of sea-ice drift in the Canadian Archipelago, along the east coast of Greenland, and north of Svalbard. In these areas, the algorithms trained with SAR observations have better performances for predicting the speed of sea-ice drift.
Numerical Investigation of Aerodynamic Performance of Wind
Turbine Airfoils with Ice Accretion
Authors: Yassin Khaled , Kassem Hassan , Stoevesandt Bernhard , Klemme Thomas , Peinke Joachim
Published: February 2021

Abstract. One of the emerging problems in modern computational fluid dynamics is the simulation of flow over rough surfaces, wind turbine blades with ice on its surface for instance. An alternative method to numerically simulate rough surfaces instead of using a grid with y+
Traveling waves in cooperative predation: relaxation of sublinearity
Authors: Ghimire Srijana , Wang Xiang-Sheng
Published: February 2021

In this paper, we investigate traveling wave solutions of a diffusive predator-prey model which takes into consideration hunting cooperation. Sublinearity condition is violated for the function of cooperative predation. When the basic reproduction number for the diffusion-free model is greater than one, we find a critical wave speed below which no positive traveling wave solution shall exist. On the other hand, if the wave speed exceeds this critical value, we prove the existence of a positive traveling wave solution connecting the predator-free equilibrium to the unique positive equilibrium under a technical assumption of weak cooperative predation. The key idea of the proof contains two major steps: (i) we construct a suitable pentahedron and find inside it a trajectory connecting the predator-free equilibrium; and (ii) we construct a suitable Lyapunov function and use LaSalle invariance principle to prove that the trajectory also connects the positive equilibrium. In the end of this paper, we propose five open problems related to traveling wave solutions in cooperative predation.
Ultrasound-guided infraclavicular axillary vein cannulation: - is it a good alternative to internal jugular vein in pediatric cardiac surgery?
Authors: İbrahim Abd Elbaser İbrahim , Abdelmageed Nabil Abdelraouf , Elmorsy Mohamed
Published: February 2021

INTRODUCTION: This study was designed to compare the rate of successful first attempt and mechanical complications between internal jugular vein (IJV) and axillary vein (AXV) cannulation. METHODS: This prospective, randomized, comparative, controlled study included 220 pediatric patients with age range 1 to 12 years admitted for cardiac surgery. Patients were allocated into 2 equal groups, IJV group and AXV group. The main collected data were the rate of successful first, second and third punctures attempts and the rate of mechanical complications (arterial puncture, pneumothorax, catheter occlusion, catheter malposition, nerve injury). RESULTS: There was no statistically significant difference (P=0.053) in the first skin puncture success rate in both groups (AXV group 80% and IJV group 68%). There were no significant differences as regard the second and third skin punctures success rates. The incidence of failed vein puncture was similar (P=1.000) in IJV (3%) and AXV (2%) groups. The vein puncture and catheter insertion times were comparable in both groups. The rates of arterial puncture, pneumothorax and catheter malposition were similar in IJV and AXV groups (12% vs 11%, 4% vs 1%, 3% vs 5% respectively). Catheter occlusion with sternal retraction was significantly higher (p=0.029) in AXV than IJV group (6% vs 0%). No patient developed postoperative phrenic (IJV group) or brachial plexus nerve injury (AXV group). DISCUSSION AND CONCLUSION: Ultrasound-guided cannulation of both infraclavicular AXV and IJV were similarly associated with high success rate and low incidence of mechanical complications.
Comparison of Clinical Performance of Supraglottic Airway Devices in Elderly Patients: A Prospective Randomized Trial
Authors: Polat Reyhan , Çatalca Sibel , Ergil Julide , Baran İlkay , Tamam Aylin , Polat Yağmur
Published: February 2021

INTRODUCTION: Airway management in the elderly may be challenging. Supraglottic airway devices (SADs) may be used to provide airway security. The aim of study was to compare the efficacy and safety of different SADs, LMA classic (c-LMA), proseal LMA (p-LMA) and i-gel in anaesthetised and non-paralysed elderly patients. METHODS: The study was approved by a local ethics committee. Eighty patients, aged older than 65 years, who were scheduled to undergo elective urological or orthopaedic surgery participated in the study. Each patient was randomly allocated into 1 of 3 groups: Group C: c-LMA (n = 26), Group P: p-LMA (n = 27) or Group I: i-gel (n = 27). The primary outcome was oropharyngeal sealing pressure (OSP). Secondary outcomes included the adequacy of positive pressure ventilation, ease of insertion, success rates, time to insertion, haemodynamic response and complications such as sore throat and dysphagia. RESULTS: There were no significant differences among the groups with respect to OSP (p=0.852), whereas there was a statistically significant difference between Group I and Group C in terms of leak volume and leak fraction ( p= 0.042 and p = 0.020, respectively ). Adverse events were similar among the groups (p > 0.05). DISCUSSION AND CONCLUSION: In this study, although the leak volume and leak fraction were lower in i-gel inserted patients, it was shown that i-gel, c-LMA and p-LMA provided adequate airway in elderly patients who were not applied muscle relaxants and will be operated under general anesthesia.
Ultrasound-Guided Stellate Ganglion Block to Treat Accidental Injection of Propofol in an Anomalous Radial Artery
Authors: Hussain Sana Yasmin , Sardar Arijit , Jain Dhruv , Kashyap Lokesh
Published: February 2021

Intra-arterial drug administration is a rare but potentially dreadful condition which can result in ischemia and gangrene of the hand. In the present case we accidentally injected propofol in an anomalous radial artery during anesthesia induction. Serial ultrasound-guided stellate ganglion blocks were applied to salvage the limb of the patient by promoting arterial blood flow. This is probably the first reported case of accidental intra-arterial injection of propofol being managed with stellate ganglion block.
COVID-19 Tanısı veya Şüphesi olan Erişkin Hastalarda Kardiyopulmoner Resüsitasyon Uygulamaları
Authors: Akın Şule , Birbiçer Handan , Doruk Nurcan , Tezcan Keleş Gönül , Özbilgin Şule
Published: February 2021

Cardiopulmonary resuscitation (CPR) includes all treatment procedures during cardiac arrest. Resuscitation of patients with diagnosed or suspected of COVID-19 is particularly important in terms of protection and reducing the risk of transmission. In this review, the basic and advanced life support recommendations of Turkish Resuscitation Council for adult patients with a definite or probable diagnosis of COVID-19 are explained within the algorithm framework.
The Influence of Instagram Influencers’ Activity on Green Consumption Behavior
Authors: Jalali Sanaz Saghati , Khalid Haliyana Binti
Published: February 2021

Nowadays, environmental problems are rising due to the individuals’ consumption behaviour, which necessitates serious attention. Consumers gradually become aware of the effect of their consumption behaviour on the environment and make a difference. Social media, particularly Instagram, play a major role in increasing awareness and promoting environmentally friendly behaviour. Hence, it is crucial to investigate the impact of Instagram on green consumption intention, which is the best predictor of behaviour. By reviewing the existing literature, the current study develops a conceptual model regarding the effect of Instagram influencers’ green activity on followers’ intention. As the model proposes, green attitude and green consumption intention are shaped among followers by the Instagram influencers’ green concern, green photo content, and green word of mouth (WOM). Additionally, it is proposed that the perceived credibility of followers moderated the link between green WOM and green consumption intention. The study contributes to the body of knowledge by developing a new model that helps identify green consumption intention determinants.
Computational Thinking in Mathematics and Computer Science: What Programming Does to Your Head
Authors: Cuoco Al , Goldenberg Paul
Published: February 2021

How you think about a phenomenon certainly influences how you create a program to model it. The main point of this essay is that the influence goes both ways: creating programs influences how you think. The programs we are talking about are not just the ones we write for a computer. Programs can be implemented on a computer or with physical devices or in your mind. The implementation can bring your ideas to life. Often, though, the implementation and the ideas develop in tandem, each acting as a mirror on the other. We describe an example of how programming and mathematics come together to inform and shape our interpretation of a classical result in mathematics: Euclid's algorithm that finds the greatest common divisor of two integers.
Deterministic Republic
Authors: Green Kris
Published: February 2021

This story is an extension of the paper "Mathematics and Voter Choice" published in this same issue of the Journal of Humanistic Mathematics. It explores what elections and politics might look like from the voter perspective if some of the ideas from the paper were implemented. The story is also an attempt to highlight how mathematics and data science are done, much the way a colleague of mine refers to shows like CSI as recruiting tools that use "dramatic pipetting" in the labs to show day-to-day science in action. The story is, as you will no doubt see, heavily influenced by watching far too many episodes of the Twilight Zone
Uso de Cadeias de Markov para Otimizar o Sensoriamento Colaborativo do Espectro em Redes 5G
Authors: Ferreira Gabriel Carvalho , Barreto Priscila América Solis Mendez , Caetano Marcos Fagundes , Filho Geraldo Pereira , Vartiainen Johanna , Karvonen Heikki
Published: February 2021

Os rádios cognitivos são considerados fundamentais para melhorar o uso do espectro em redes 5G. O sensoriamento de espectro é uma tecnologia que permite que o estado do canal seja determinado de forma descentralizada. O sensoriamento colaborativo do espectro melhora a detecção ao coletar mais dados de diferentes usuários, em diferentes lugares, aumentando a quantidade de informação disponível para a toma de decisões. Este artigo apresenta uma técnica baseada em cadeias de Markov que melhora a detecção do espectro e diminui o número de notificações de sensoriamento. Dessa forma, a técnica melhora o resultado dos algoritmos de fusão clássicos para sensoriamento colaborativo no caso de acesso bem comportado. Observou-se uma redução de até ~99.67% da taxa de alarmes falsos e até ~98% do tráfego de controle associado, preservando a taxa de falsos negativos abaixo do limite tolerável de 10%, minimizando interferência ao usuário do canal.
MineCap: Detecção de Mineração de Criptomoedas em Redes Corporativas com Aprendizado de Máquina e Prevenção de Abusos com Redes Definidas por Software
Authors: Nascimento Cunha Neto Hélio , Fernandes Natalia Castro , Mattos Diogo Menezes Ferrazani
Published: February 2021

A mineração não autorizada de criptomoedas implica o uso de valiosos recursos de computação e o alto consumo de energia. Este trabalho propõe o mecanismo MineCap, um mecanismo dinâmico e em linha para detectar e bloquear fluxos de mineração não autorizada de criptomoedas, usando o aprendizado de máquina e redes definidas por software. O MineCap desenvolve a técnica de super aprendizado incremental, uma variante do super learner aplicada ao aprendizado incremental. O super aprendizado incremental proporciona ao MineCap precisão para classificar os fluxos de mineração ao passo que o mecanismo aprende continuamente com os dados recebidos. Os resultados revelam que o mecanismo alcança 98% de acurácia, 99% de precisão, 97% de sensibilidade e 99,9% de especificidade e evita problemas relacionados ao desvio de conceito. Os resultados desse trabalho foram submetidos e aceitos em um congresso internacional, um congresso nacional, um minicurso, uma revista indexada e, ainda, há um artigo em processo de revisão em uma revista.
ALERT: Um Sistema Multicamadas para a Disseminação de Informações em Redes Veiculares
Authors: Brandão Yan V. , De Souza Lucas Marchisotti , Gomides Thiago Da Silva , Guidoni Daniel  Ludovico
Published: February 2021

O crescimento do número de acidentes de trânsito tem se tornado preocupante nos centros urbanos. Em consequência do agrupamento populacional nas grandes cidades e o aumento do número de veículos, os impactos dos acidentes podem ser ainda maiores. Com o propósito de diminuir estes impactos, nós apresentamos o ALERT, um algoritmo totalmente distribuído capaz de reduzir os congestionamentos ocasionados por acidentes, contribuindo para uma mobilidade urbana eficiente em cidades inteligentes. O algoritmo realiza a detecção de acidentes e disseminação de mensagens de alerta em múltiplos saltos. Além disso, o sistema é capaz de realizar o compartilhamento de estimativas de tráfego das vias, para que os veículos saibam previamente das condições de deslocamento dos segmentos próximos. Resultados de simulação indicam que o algoritmo proposto é capaz de reduzir o tempo médio de viagem dos veículos.
AutAvailChain: Disponibilização Segura, Controlada e Automática de Dados IoT usando Corrente de Blocos
Authors: Camilo Gustavo Franco , Rebello Gabriel Antonio Fontes , De Souza Lucas Airam Castro , Duarte Otto Carlos Muniz Bandeira
Published: February 2021

A centralização da confiança utilizada nos sistemas de compartilhamento de dados atuais limita o controle do usuário proprietário sobre os próprios dados. A intervenção individual do proprietário para autorizar o acesso a seus dados a cada demanda dificulta a acessibilidade a dados muito populares. Este artigo propõe AutAvailChain, uma arquitetura baseada em corrente de blocos e redes definidas por software para prover o compartilhamento seguro, automático e distribuído de dados IoT. O protótipo desenvolvido utiliza a plataforma Hyperledger Fabric para implementar a corrente de blocos e um contrato inteligente. Os resultados mostram um desempenho satisfatório para atender, de maneira rápida e segura, dezenas de transações por segundo.
EtherYou: Ethereum-based privacy-preserving social media platform
Authors: Oyama Pedro Ivo de Castro , Ueyama Jó , Matias Paulo
Published: February 2021

Social media has become part of our daily lives. It brought significant developments in the way we communicate, but it also raised some concerns, including privacy and censorship. In this context, this work presents a social media platform -- EtherYou -- that makes use of cryptographic primitives and an Ethereum smart contract to overcome these issues. Experiments were conducted to evaluate the operating costs involved. The results showed considerable values for senders, zero for receivers, and zero maintenance costs, indicating its potential in scenarios with a reduced number of content producers and a large number of consumers. The proposal offers users privacy over their data, transparency on the system behaviour and censorship resistance.
Controle de banda global em sítios distribuídos para portabilidade de acesso à redes Wi-Fi comunitárias
Authors: Dourado Glauber L. , Martinello Magnos , Villaça Rodolfo S.
Published: February 2021

O Wi-fi Publico e o Wi-Fi comunitário se mostram como ótimas opções para promover novas adesões e retenção de clientes dentro dos provedores de internet. Os roteadores Wi-Fi residenciais oferecem uma excelente infraestrutura com um grande número de pequenas células de alta capacidade, baixo alcance e alta densidade, principalmente em ambientes urbanos. O gerenciamento de acesso a internet em redes distribuídas definidas por software ainda carece de arquiteturas prontas para uso em casos específicos como em Wi-Fi Comunitário. Este artigo apresenta uma arquitetura de gerenciamento e controle de acesso para Wi-Fi comunitário, bem como traz a implementação de um controlador de tráfego agregado entre dispositivos participantes de um mesmo contrato, permitindo que estes estejam geograficamente distantes e conectados a distintos pontos de acesso residenciais. Desta forma, um usuário pode ter certo grau de acesso ubíquo e pervasivo, conectando-se a um ponto de acesso qualquer dentro da comunidade, e com o mesmo acesso a banda como se estivesse dentro de sua propria residência. A solução foi implementada utilizando o protocolo Openflow, controlador Ryu e um orquestrador em Python, que comunica com o controlador via API REST.
Avaliação dos Serviços de Armazenamento da Amazon Web Services para Gravação e Recuperação de Checkpoints
Authors: Teylo Luan , Brum Rafaela , Arantes Luciana , Sens Pierre , Drummond Lúcia
Published: February 2021

Os provedores de nuvem oferecem vários serviços para processamento e armazenamento de dados. Alguns desses recursos são propensos a falhas ou revogações. Neste caso, a adoção de técnicas de tolerância a falhas é essencial para minimizar o impacto e o custo que estas falhas podem exercer na execução das aplicações e no orçamento dos usuários. Uma das soluções amplamente adotadas são as técnicas de checkpoint and recovery (CR), que gravam o estado atual da aplicação para que, caso ocorra falhas, esta seja reiniciada a partir do último estado gravado. Assim, essas abordagens exigem um local de armazenamento seguro e disponível ao longo de toda a execução. Felizmente, os serviços de nuvens também podem ser utilizados para este fim, uma vez que diferentes opções de armazenamento também são oferecidos. Neste trabalho, queremos avaliar três desses serviços: o Amazon Simple Storage Service (S3), o Amazon Elastic Block Store (EBS) e o Amazon Elastic File System (EFS). O objetivo é caracterizar e avaliar o desempenho desses serviços em relação a gravação e recuperação de checkpoints no contexto de falhas induzidas pela revogação de máquinas virtuais.
Amok
Authors: Wittwar Mirko
Published: February 2021

Since the so-called “Historikerstreit” centered on Ernst Nolte, the debate about the nature of National Socialism has almost come to a standstill. Mirko Wittwar wants to give a new impetus by examining the parallels between National Socialism and a seemingly much more recent phenomenon: the rampage.

In contrast to all previous interpretations, he understands National Socialism as a phenomenon of violent perpetrators, in the context of which not only the members of the SS deluded themselves and everybody else about their true motivations, "because sheer force for its own sake was not tolerable at the time" (Eugen Kogon). The success of National Socialism and the behavior of its supporters only become comprehensible if one recognizes its purpose of pure violence.
Die rechtliche Regelung der heterologen Samenspende in Deutschland und in Griechenland
Authors: Theodoridis Athina
Published: February 2021

In her work, Athina Theodoridis offers a practice-relevant comparative legal analysis of the legal regulation of heterogeneous sperm donation in Germany and Greece. The SaRegG, which came into force on July 1st, 2018, was intended to help sperm donor children to enforce their right to knowledge of their own parentage, recognized by the BVerfG since 1989. Instead of eliminating long-standing uncertainties, however, the law raises more questions than it answers. The author not only examines the need for further legislative action, but also shows possible solutions with the aid of the legal situation in Greece.
Digitalisierung, Ökologie und das Gute Leben
Authors: Mierzwa Roland
Published: February 2021

Digitalisation creates problems: supply chains that are not completely fair, massive consumption of electricity, an immense amount of e-waste, meagre efforts to recycle, etc. This is why this book argues for a more radical culture of reducing and forgoing our use of digital technologies, which all ideas about sustainability have shied away from until now. Using the post-growth movement, the concept of a ‘good life’ and the ubuntu ideology, it demonstrates how one can live one’s life without much recourse to digital technology.
The Library Of Gromma
Authors: Auerbach Zeph ,   After Dinner Conversation
Published: February 2021

Should the past be forgotten? Does it help society, and the community, to let the past go? How can we learn from the past while simultaneously letting go of it? In this work of philosophical short story fiction, a young boy has been put in charge of the machine that stores the exact collective memories of his grandmother (“Gromma”) and the community at large. His job is made more difficult because the machine is old, falling apartment, and a fire killed the previous caretaker long before his training was complete. As the story closes the boy finds out the previous fire was caused by a community member who believes the community can only move forward by destroying the machine and allowing the memories of the past to naturally fade into obscurity.
The Human Experience
Authors: Cappel Jared ,   After Dinner Conversation
Published: February 2021

It is moral to take on debts for the benefit of your unborn child that will carry over to your unborn child after you are dead? What if taking on those debts are the best way to ensure your child has the best chance for a successful life? In this work of philosophical short story fiction, a couple looking to have their first child goes to the medical clinic to discuss the cost of DNA selection packages for their yet-to-be-conceived child. How much do they want to fix the genetic lottery to help their child be smart, athletic, or driven? They have the budget to make minor improvements, but if they are willing to take out a loan they can do more. The problem is the unpaid debt carries to their unborn child if they die before it is paid in full. In the end, through the high pressure used-car-salesmanship of the company, they decide to leverage their child’s future and order the “Platinum” package.
Simon
Authors: Swanson Cory ,   After Dinner Conversation
Published: February 2021

What if the Devil were real and you could, and did, kill him? What, does the Devil stand for in society, and what might change about society in the event of his death? In this work of philosophical short story fiction, Simon is put on trial for having, literally, killed the devil. He did it through trickery, of course. He told the Devil that he (the Devil) was a cheap peddler of a product, fear. But, because he was immortal, he would never truly understand the product he pushed on others. The Devil asserts he fears nothing and, to prove it, removes his immortality from his being. Simon kills him. And now Simon is on trial. It is unethical to kill a purely evil thing? And, if the Devil is dead, why are bad things still happening in the world?
Father Dale's Drive-Thru Exorcisms
Authors: Hampton Viggy Parr ,   After Dinner Conversation
Published: February 2021

Is religious-based fear an acceptable way to ensure right behavior? Can moral behavior be created through theatre? At what age should a child be made aware of the Christian ideas of hell? Does the motivation of religious leaders make their lies acceptable? In this work of philosophical short fiction, Tina and Dale live out of their RV, scraping by, and traveling around the United States. Tina was traumatized by being made to attend an evangelical tent revival meeting as child. Now, as adults, they follow these same tent revivals around the United States offering fake exorcisms to anyone willing to pay for their service. In their opinion it doesn’t do any good, or any harm, which is more than can be said for the tent sermons. One day a family pulls up with a child asking for an exorcism. Tina and Dale obligate, however, in the process fail to realize the boy is having a genuine medical emergency. The boy dies during the “exorcism.”
Community Of Peers
Authors: Gessie Dean ,   After Dinner Conversation
Published: February 2021

To what detail do you need to know how the justice system works to support it? Would you be willing to take part in the punishment of a foreign justice system? What morality do we carry with us between cultures, and what morality are we willing to adopt from our host culture? In this work of philosophical short fiction, the narrator wanders into a remote, but seemingly civilized, village about to carry out their most severe punishment, the stoning to death of a convicted criminal. As part of their culture, if there is a stranger among them, they should be the one to cast the first stone. Our narrator only knows that the trial was fair under the laws of the culture, and the criminal was found guilty. However, he is not permitted to know what crime the criminal committed. Regardless of the narrator’s choice, the criminal will die today. The narrator decides to throw the first stone, hits the criminal squarely in the head, killing him instantly. The remaining community members drop their stones and head home, justice served.
Fossil record of a Characiform in the Monte Hermoso Formation (lower Pliocene), Buenos Aires, Argentina. Palaeobiogeographical implications
Authors: BOGAN Sergio , AGNOLIN Federico , MIRANDE Juan Marcos
Published: February 2021

The fossil record of fishes from the Farola de Monte Hermoso locality (lower Pliocene) in the southern Buenos Aires province, Argentina, shows an unusual composition. The locality at the southern boundary of the Brazilian Ichthyogeographic Realm. However, its fossil record is composed of fossil fishes that are not necessarily related to Brazilian lineages, namely indeterminate siluriforms, trichomycterid catfishes, and percomorphaceans. The aim of the present contribution is to describe and report for the first time isolated specimens belonging to Characidae fishes. In the Pampean region the fossil record of characids is restricted to Oligosarcus Günther, 1864 sp. from the late-middle Pleistocene. The present finding fills a temporal gap between the Paleogene and Quaternary reports and indicates that Brazilian fish lineages were present in the area by early Pliocene times, and may constitute an indirect evidence of the evolution of the basins in the southern Pampean Area.
Safety and Angiographic Efficacy of Intra-Arterial Fibrinolytics as Adjunct to Mechanical Thrombectomy: Results from the INFINITY Registry
Authors: Kaesmacher Johannes , Abdullayev Nuran , Maamari Basel , Dobrocky Tomas , Vynckier Jan , Piechowiak Eike I. , Pop Raoul , Behme Daniel , Sporns Peter B. , Styczen Hanna , Virtanen Pekka , Meyer Lukas , Meinel Thomas R. , Cantré Daniel , Kabbasch Christoph , Maus Volker , Pekkola Johanna , Fischer Sebastian , Hasiu Anca , Schwarz Alexander , Wildgruber Moritz , Seiffge David J. , Langner Sönke , Martinez-Majander Nicolas , Radbruch Alexander , Schlamann Marc , Mihoc Dan , Beaujeux Rémy , Strbian Daniel , Fiehler Jens , Mordasini Pasquale , Gralla Jan , Fischer Urs
Published: February 2021

Background and Purpose Data on safety and efficacy of intra-arterial (IA) fibrinolytics as adjunct to mechanical thrombectomy (MT) are sparse.Methods INtra-arterial FIbriNolytics In ThrombectomY (INFINITY) is a retrospective multi-center observational registry of consecutive patients with anterior circulation large-vessel occlusion ischemic stroke treated with MT and adjunctive administration of IA fibrinolytics (alteplase [tissue plasminogen activator, tPA] or urokinase [UK]) at 10 European centers. Primary outcome was the occurrence of symptomatic intracranial hemorrhage (sICH) according to the European Cooperative Acute Stroke Study II definition. Secondary outcomes were mortality and modified Rankin Scale (mRS) scores at 3 months.Results Of 5,612 patients screened, 311 (median age, 74 years; 44.1% female) received additional IA after or during MT (194 MT+IA tPA, 117 MT+IA UK). IA fibrinolytics were mostly administered for rescue of thrombolysis in cerebral infarction (TICI) 0-2b after MT (80.4%, 250/311). sICH occurred in 27 of 308 patients (8.8%), with an increased risk in patients with initial TICI0/1 (adjusted odds ratio [aOR], 2.3; 95% confidence interval [CI], 1.1 to 5.0 per TICI grade decrease) or in those with intracranial internal carotid artery occlusions (aOR, 3.7; 95% CI, 1.2 to 12.5). In patients with attempted rescue of TICI0-2b and available angiographic follow-up, 116 of 228 patients (50.9%) showed any angiographic reperfusion improvement after IA fibrinolytics, which was associated with mRS ≤2 (aOR, 3.1; 95% CI, 1.4 to 6.9).Conclusions Administration of IA fibrinolytics as adjunct to MT is performed rarely, but can improve reperfusion, which is associated with better outcomes. Despite a selection bias, an increased risk of sICH seems possible, which underlines the importance of careful patient selection.
Residual Risk and Its Risk Factors for Ischemic Stroke with Adherence to Guideline-Based Secondary Stroke Prevention
Authors: Pan Yuesong , Li Zixiao , Li Jiejie , Jin Aoming , Lin Jinxi , Jing Jing , Li Hao , Meng Xia , Wang Yilong , Wang Yongjun
Published: February 2021

Background and Purpose Despite administration of evidence-based therapies, residual risk of stroke recurrence persists. This study aimed to evaluate the residual risk of recurrent stroke in acute ischemic stroke or transient ischemic attack (TIA) with adherence to guideline-based secondary stroke prevention and identify the risk factors of the residual risk.Methods Patients with acute ischemic stroke or TIA within 7 hours were enrolled from 169 hospitals in Third China National Stroke Registry (CNSR-III) in China. Adherence to guideline-based secondary stroke prevention was defined as persistently receiving all of the five secondary prevention medications (antithrombotic, antidiabetic and antihypertensive agents, statin and anticoagulants) during hospitalization, at discharge, at 3, 6, and 12 months if eligible. The primary outcome was a new stroke at 12 months.Results Among 9,022 included patients (median age 63.0 years and 31.7% female), 3,146 (34.9%) were identified as adherence to guideline-based secondary prevention. Of all, 864 (9.6%) patients had recurrent stroke at 12 months, and the residual risk in patients with adherence to guidelinebased secondary prevention was 8.3%. Compared with those without adherence, patients with adherence to guideline-based secondary prevention had lower rate of recurrent stroke (hazard ratio, 0.85; 95% confidence interval, 0.74 to 0.99; P=0.04) at 12 months. Female, history of stroke, interleukin-6 ≥5.63 ng/L, and relevant intracranial artery stenosis were independent risk factors of the residual risk.Conclusions There was still a substantial residual risk of 12-month recurrent stroke even in patients with persistent adherence to guideline-based secondary stroke prevention. Future research should focus on efforts to reduce the residual risk.
Dual-Energy CT Angiography Improves Accuracy of Spot Sign for Predicting Hematoma Expansion in Intracerebral Hemorrhage
Authors: Peeters Michaël T.J. , Kort Kim J.D. de , Houben Rik , Henneman Wouter J.P. , Oostenbrugge Robert J. van , Staals Julie , Postma Alida A.
Published: February 2021

Background and Purpose Spot sign (SS) on computed tomography angiography (CTA) is associated with hematoma expansion (HE) and poor outcome after intracerebral hemorrhage (ICH). However, its predictive performance varies across studies, possibly because differentiating hyperdense hemorrhage from contrast media is difficult. We investigated whether dual-energy-CTA (DE-CTA), which can separate hemorrhage from iodinated contrast, improves the diagnostic accuracy of SS for predicting HE.Methods Primary ICH patients undergoing DE-CTA (both arterial as well as delayed venous phase) and follow-up computed tomography were prospectively included between 2014 and 2019. SS was assessed on both arterial and delayed phase images of the different DE-CTA datasets, i.e., conventional-like mixed images, iodine images, and fusion images. Diagnostic accuracy of SS for prediction of HE was determined on all datasets. The association between SS and HE, and between SS and poor outcome (modified Rankin Scale at 3 months ≥3) was assessed with multivariable logistic regression, using the dataset with highest diagnostic accuracy.Results Of 139 included patients, 47 showed HE (33.8%). Sensitivity of SS for HE was 32% (accuracy 0.72) on conventional-like mixed arterial images which increased to 76% (accuracy 0.80) on delayed fusion images. Presence of SS on delayed fusion images was independently associated with HE (odds ratio [OR], 17.5; 95% confidence interval [CI], 6.14 to 49.82) and poor outcome (OR, 3.84; 95% CI, 1.16 to 12.73).Conclusions Presence of SS on DE-CTA, in particular on delayed phase fusion images, demonstrates higher diagnostic performance in predicting HE compared to conventional-like mixed imaging, and it is associated with poor outcome.
¿Naturalizar la conciencia? Husserl y la tesis de la excepción humana
Authors: García Ruiz Pedro Enrique
Published: February 2021

Uno de los aspectos dominantes en los desarrollos de las ciencias sociales y las humanidades en la actualidad es la adaptación de enfoques naturalistas. Los programas naturalistas rechazan el estatuto de lo humano que había defendido tradicionalmente la filosofía al sostener que la conciencia es reducible a un hecho contingente y, por lo tanto, puede comprenderse desde un criterio meramente objetivista. El filósofo francés Jean-Marie Schaeffer llama a esta postura la “tesis de la excepción humana” y sostiene que la fenomenología de Edmund Husserl es el último ejemplo de esta postura. Trataremos de mostrar que el antinaturalismo tan característico de la fenomenología husserliana es sostenible pese a la crítica de Schaeffer. En este sentido, buscamos explorar brevemente la posibilidad y sentido de una fenomenología naturalizada.One of the key aspects in the development of the social sciences and humanities today is the adaptation of naturalistic approaches. Naturalists programs reject the status of the human that had traditionally defended philosophy holding that consciousness is reducible to a contingent fact and, therefore, can be understood from a purely objectivist approach. The French philosopher Jean-Marie Schaeffer calls this approach the “thesis of human exception” and argues that the phenomenology of Edmund Husserl is the latest example of this approach. Try to show that the anti-naturalism so characteristic of Husserlian phenomenology is sustainable despite criticism of Schaeffer. Here, looking briefly to explore the possibility and way of a naturalized phenomenology.
Tiempo y asociación. Acerca de la relación entre los Manuscritos de Bernau y los Análisis sobre la síntesis pasiva
Authors: Kretschel Verónica
Published: February 2021

Los Manuscritos de Bernau representan una obra clave para quien busca entender la teoría del tiempo husserliana. Tanto los intérpretes sobre el tema, como el propio Husserl indican que estos escritos constituyen su obra maestra (Hauptwerk). Pero la indiscutible relevancia de estos manuscritos no quita la dificultad que implica dar cuenta de una lectura consistente del texto. Nuestra intención aquí consistirá en evaluar la relación que pueda establecerse entre esta obra y los Análisis sobre las síntesis pasivas. La idea que guiará el trabajo será que la labor experimental encarada por Husserl entre 1917 y 1918 provocó, en el contexto del estudio de la temporalidad, el descubrimiento de nociones centrales que luego serían profundizadas bajo el tópico de la asociación. En particular, analizaremos las transformaciones que se presentan en la noción de protención y las descripciones de la modificación retencional.The Bernau Manuscripts represents a crucial work to understand the Husserlian theory of time. The interpreters of the subject, as much as Husserl himself, point out that this studies are a master piece (Hauptwerk). But the unquestionable relevance of Bernau does not minimize the implied difficulty to achieve a consistent interpretation of the text. Our intention here is to determine the relation between this text and The Analysis Concerning Passive Synthesis. The main idea of this paper will be that the experimental work performed by Husserl between 1917-1918 leads to, in the context of time studies, the discovery of key notions. The developpment of this notions will be accomplished under the topic of association. Particularly, we will analize the transformations the notion of protension presents and the descriptions of retentional modification.
Leib y tecnologías: relaciones y co-fundación
Authors: Liberati Nicola
Published: February 2021

El objetivo de este trabajo es estudiar la relación y la co-fundación entre el cuerpo viviente [Leib] y la tecnología desde una perspectiva Husserliana. Quisiera afirmar la necesidad de abandonar el concepto clásico del Leib como un ser desnudo y natural, constituyéndose a sí mismo por sus características biológicas. Estudiando la acción de la tecnología, en primer lugar como una mera extensión y después como una incorporación, la relación cofundacional entre la tecnología y el Leib se hará evidente. Sin embargo, aunque exista una fundación cultural e histórica, permanece la necesidad de un Leib natural que sea la base del nivel práctico del sujeto. Leib resulta ser natural y cultural al mismo tiempo, depende de lo que se esté buscando.The aim of this paper is to study the relation and the co-foundation between the living body [Leib] and technology in a Husserlian approach.I want to assert the necessity of abandoning the classical concept of the Leib as a naked and natural being, constituting itself by its biological features. Studying the action of technology, firstly as mere extension and secondly as incorporation, the co-foundational relation between technology and Leib will be evident. However, even if there is a cultural and historical foundation, there remains the necessity of a natural Leib being the base of the subject's practical level. Leib appears to be natural and cultural at the same time, it depends on what you are looking for.