bluuebunny/crossref_metadata_2025 huggingface dataset:
Dispositifs de monstration et rapport à l’objet : des lathouses au virtuel de l’œuvre d’art
Authors: Pitel Olivier , Martin-Mattera Patrick
Published: May 2023

La circulation de l’œuvre d’art au sein de dispositifs numériques confère à son objet des caractéristiques nouvelles. Ces caractéristiques permettent-elles de considérer l’œuvre d’art virtuelle comme le contraire de l’objet lathouse, marchandise clinquante, illusoire et éphémère, avidement offerte à une jouissance toujours insatisfaite ? Car l’œuvre d’art virtuelle, parce qu’elle tente de défaire le voir, puise son pouvoir dans le réel et vise un au-delà de l’objet, alors élevé par la sublimation à la dignité de la Chose. Déjà, au milieu du XXe siècle, le ready-made, par un coup d’avance, avait résisté aux dispositifs de l’objet d’art établi, œuvrant par-là à une esthétique de l’absence. L’unicité perdue de l’œuvre d’art s’en trouvait alors restaurée par un dispositif artistique paradoxal, qui éclairait d’une aura renouvelée les plus communs des objets. Mais qu’en est-il aujourd’hui, époque de fusion intense entre les discours de l’art, de la science et du capitalisme, où se développent les Non Fungible Tokens (NFTs), objets d’art numériques par principe infiniment reproductibles, mais dont l’unicité originale se trouve pourtant garantie à prix d’or via la blockchain ?
La déshumanisation, une potentialité humaine. Outils pour la Kulturarbeit
Authors: De Rosa Barbara
Published: May 2023

Ce travail explore la question de la relation à l’objet et de ses potentialités déshumanisantes, c’est-à-dire désobjectalisantes et désubjectivantes, à partir de la lentille grossissante de la situation extrême, au niveau collectif (notamment dans le trauma historique la Shoah) et individuel (la clinique des tueurs en série). Il tente de montrer combien cette potentialité est présente, voire plus ou moins réalisée a minima, dans le modèle contemporain de la relation à l’objet alimenté par la collusion de plusieurs facteurs, parmi lesquels la logique néolibérale étendue à l’humain, la présence envahissante des relations virtuelles et la tendance « humaine trop humaine » vers le narcissisme mortifère. En dialogue avec la psychanalyse, nous nous appuyons sur la pensée philosophique d’Agamben sur le concept de dispositif et la perspective de Han sur la contemporanéité.
Les effets de l’assimilation culturelle sur les liens intergénérationnels, la structure familiale et la relation mère-enfant
Authors: Ledrait Alexandre
Published: May 2023

Cet article traite de l’origine de la tendance assimilationniste de la France ainsi que de la perspective civilisationniste qui a été appliquée aussi bien aux autochtones, qu’aux esclaves et colonisés qu’aux migrants dans une quête de l’idéologie du même à travers un idéal sociétal. Cette idéologie du même contribue à la quête du semblable comme son double narcissique au sens où Lasch, philosophe américain, l’entend au détriment de la diversité culturelle, de la différence et de l’altérité. Cet idéal culturel traditionnel a été progressivement supplanté par celui de la science notamment dans la maternité, le maternage contribuant à la rupture de transmission intergénérationnelle dans le lien mère-fille, mais avec la même quête d’un idéal sociétal scientiste au détriment de la singularité du sujet et de sa subjectivité.

Les effets de ce modèle assimilationniste dans la rupture de transmission ont été étudiés à la lumière de la représentation culturelle de la femme légitimée par la science, du clivage entre le féminin et le maternel, du lien mère-fille et de la place de l’enfant, dans la région normande. Les conséquences qui en résultent de cette assimilation culturelle idéologique et scientiste mettent en évidence, à travers une vignette clinique, une violence intergérationnelle entre mère et fille exposant l’enfant à la maltraitance.

Compte tenu que la représentation de la femme est négative, l’article montre que le lien intergénérationnel mère-fille est imprégné d’une culpabilité, d’une haine, et qui entrave les processus psychiques intersubjectifs dans la traversée du ravage au sens lacanien du terme pour favoriser la persécution et la destruction.
Trauma, subjectivation et gouvernabilité dans la pandémie du coronavirus
Authors: Birtnan Joël
Published: May 2023

Cet essai a l’intention de problématiser les effets de la pandémie du Coronavirus sur les singularités dans un registre éminemment psychique, en articulant l’expérience traumatique à des formes de subjectivation et de gouvernabilité. Ainsi, le trauma peut être vu comme étant une production à la fois singulière et collective.
Freud, Lou, Rilke et le deuil Impossible
Authors: Yankelevich Hector
Published: May 2023

« Le texte de Freud “Vergänglichkeit” écrit deux ans après sa rencontre avec Rilke s’est avéré être le noyaux de “Deuil et Mélancolie”. Mais une lecture soignée des poèmes de Rilke, de sa correspondance avec Lou Andreas et de ce qu’elle-même a écrit à Freud là-dessus, permettent non seulement d’affiner le diagnostic de Freud, mais d’élargir, grâce à Lou, la théorie analytique du deuil. En infirmant que celui-ci doit déclarer perdu “tout” “alles” ce qui concernait celui qui est mort ou disparu de la vie. »
William Shakespeare et Sigmund Freud. Aux origines de « Deuil et mélancolie »
Authors: Allen David Frank , El-Khattabi Seloua
Published: May 2023

La recherche commence avec les remarques d’Isaac Ray sur l’importance de Shakespeare dans la clinique de la folie. Il est précisé l’influence de Bright sur Shakespeare, y compris dans la construction du personnage d’Hamlet qui paraphrase le Traité de Bright (1586) plusieurs fois. Freud était peut-être troublé par l’influence de Shakespeare sur sa propre pensée, il était même préoccupé par la « Looney » théorie. Plusieurs chercheurs, J. Freire, B. Sichère et autres, pensent que Shakespeare était presque l’Autre de Freud.
The effect of time resolution on the modelling of domestic solar energy systems
Authors: Browne Miles H. , Williams Arthur A.
Published: May 2023

This paper investigates the modelling accuracy of small-scale solar energy systems, in particular the effect of changing the time resolution. Accurate modelling of solar energy systems is important in designing cost-effective solutions and in research into micro-grid functionality. Currently, most modelling uses a resolution of one hour when simulating the energy in small scale renewable energy systems. Within each hour, these models take an average of the load demand and solar generation values. An hourly time resolution is ignorant of the large variations in a daily load profile that result from high power appliances and also misses short-term variations in solar generation. Few researchers using hourly modelling consider the implications in terms of the simulation accuracy. In this paper, 3 load profiles are modelled with grid connected solar systems, one with and one without a battery, totalling 6 models. Each model is simulated for 4 seasons of the year, modelled at hourly, 5 min and 1 min time resolution. The results show that the hourly model was a poor predictor of battery behaviour, over-estimating the battery state of charge (SoC) by up to 10%. It is also shown that, for systems without battery, the quantity of energy exported and self-consumed changed by an average of 5% and 8% respectively. The study concludes that increasing time resolution from hourly to 5-min resolution in energy models would be advantageous, increasing their accuracy in terms of battery behaviour and predicted self-consumption of solar energy. In particular, modelling at 5-min instead of hourly resolution shows the full benefits of installing battery storage with solar systems.
Krise als Teil des Lebens – psychodynamische Perspektiven
Authors: Wöller Wolfgang
Published: May 2023

Krisen sind ein Teil des Lebens. Sie können aber, wenn die gewohnten Fähigkeiten, herausfordernde Lebenssituationen zu bewältigen, nicht im notwendigen Umfang zur Verfügung stehen, mit erheblichen Gefühlen der Überforderung und emotionalen Überlastung einhergehen und professionelle Hilfe in Form von Krisenintervention notwendig machen.
Verbitterungsstörungen in Krisenzeiten – eine therapeutische Herausforderung
Authors: Lieberei Barbara
Published: May 2023

Verbitterungsreaktionen treten nach ungerecht und kränkend erlebten Lebensereignissen auf und stellen in der Praxis psychotherapeutische Herausforderungen dar. Es wird dargestellt, wie Verbitterungsstörungen von Depressionen abgegrenzt werden können und therapeutische Klippen im Umgang mit Betroffenen zu meistern sind. Es werden Behandlungsansätze vorgestellt, die sich in der Einzel- und Gruppenpsychotherapie bewährt haben.
Präokkupation als neues Symptom der Psychopathologie: Ein Überblick
Authors: Eberle David J. , Maercker Andreas
Published: May 2023

Präokkupation bezeichnet eine zeitintensive gedankliche Beschäftigung mit vergangenen Lebensereignissen und deren Implikationen. Präokkupation wurde im ICD-11-Diagnosesystem neu eingeführt und verfügt bisher über keine umfangreiche klinische Konzeptualisierung. Erste Einordnungsversuche deuten aber darauf hin, dass sich Präokkupation von anderen Symptomen in vielerlei Hinsicht unterscheidet und einer maßgeschneiderten Behandlung bedarf.
Zukunftsängste bei Jugendlichen: Ein Vergleich aus 25 Ländern
Authors: Seiffge-Krenke Inge
Published: May 2023

Zukunftsängste von Jugendlichen haben stark zugenommen und sich über die Jahrzehnte inhaltlich verändert. Sie zeigen eine immer stärkere Bezogenheit auf gesamtgesellschaftliche Bedrohungen. Im Folgenden wird eine Studie an Jugendlichen in 25 Ländern dargestellt, die Ängste und Bewältigungsstrategien international erfasst hat.
Digitale Gesundheitsanwendungen (DiGA) – Nutzen für die Psychotherapie
Authors: Böttcher Johanna , Schäuffele Carmen , Knaevelsrud Christine
Published: May 2023

Seit 2020 können Psychotherapeut*innen in Deutschland sog. Digitale Gesundheitsanwendungen (DiGA) verordnen. Damit wurde erstmals die Voraussetzung geschaffen, dass Menschen mit psychischen Störungen im Rahmen ihrer gesetzlichen Krankenversicherung digitale Angebote nutzen. Aber was sind DiGA, welche gibt es überhaupt und welchen Nutzen können sie in der psychotherapeutischen Versorgung haben?
Oberarm-Basilica-Shunt ohne Vorverlagerung
Authors: Krönung Gerhard
Published: May 2023

Die Vorverlagerung der arterialisierten Vena basilica macht diese für eine einfache Punktion leicht zugänglich. Zusätzlich verhindert sie Verletzungen benachbarter leitender Strukturen wie Nerven, Arterien und Venen bei Fehlpunktionen und sollte deshalb grundsätzlich und vor der regelmäßigen Shuntpunktion, auch bei schlanken Patienten, durchgeführt werden.
Peritonealdialyse assoziierte Peritonitis
Authors: Vychytil Andreas
Published: May 2023

Im Jahr 2022 wurden die neuen Leitlinien der International Society for Peritoneal Dialysis (ISPD) zur Diagnostik, Prophylaxe und Therapie der Peritonitis publiziert. Die maximal tolerierbare Peritonitisrate pro Zentrum wurde auf 0,4 Episoden/ Jahr herabgesenkt, wobei weniger als 15 % der Peritonitisfälle kulturnegativ sein sollten. Es wird empfohlen, auch die Peritonitisfälle, die vor Beginn der Peritonealdialyse (PD) auftreten, separat zu analysieren. Eine antibiotische Prophylaxe wird vor Katheterimplantation sowie vor Kolonoskopien und invasiven gynäkologischen Prozeduren empfohlen. Besondere hygienische Maßnahmen sind erforderlich, wenn Haustiere vorhanden sind. Anstelle einer Kombinationstherapie kann zur Abdeckung des gramnegativen und grampositiven Keimspektrums auch eine Monotherapie mit einem Cephalosporin der 4. Generation verwendet werden. Bei Wahl eines Aminoglykosids wird eine additive Therapie mit N-Azetylcystein zur Verhinderung der Ototoxizität empfohlen. Sollte 48 h nach Therapiebeginn keine Besserung eintreten, müssen weitere diagnostische Maßnahmen wie etwa die Abnahme neuerlicher Kulturen und Computertomografie des Abdomens durchgeführt werden.
Konnektivitäts-basierte Prädiktion von Neurostimulationseffekten bei Patienten mit
tiefer Hirnstimulation
Authors: Reich Martin M.
Published: May 2023

Projekthintergründe

Mit der tiefen Hirnstimulation steht für die neurologische Erkrankungen der
Bewegungsstörung eine hocheffektive Behandlungsmethode zur
Verfügung, welche aufgrund seiner Effektivität bei schwerem Tremor
und Dystonien sowie bei der fortgeschrittenen Parkinson-Erkrankung einen zunehmend
hohen klinischen Stellenwert genießt. Verbesserung um 60–80
% in den jeweiligen motorischen Skalen führte zur
Leitlinien-gerechten Zulassung der entsprechenden Therapien. Gegenläufig zu
dem initialen Gedanken einer sofort einsetzenden Wirkung auf die motorischen
Symptome kristallisierten sich insbesondere in den letzten Jahren
verzögerte, fraglich neuroplastische Effekte der tiefen Hirnstimulation
heraus. Wahrscheinlich ist hierfür nicht der Stimulationsort an sich
verantwortlich, sondern verbundene, entfernte Hirnregionen. Nicht nur deren der
primären Effekt auf die motorischen Symptome der Erkrankung ist betroffen,
sondern auch Nebenwirkungen durch versehentliche Mitstimulation naheliegender
Strukturen und Fasertrakte.
Late Effects: Auf welche potentiellen Folgen einer Krebstherapie im Kindesalter müssen wir bei Erwachsenen achten?
Authors: Vachek Jana , Gebauer Judith
Published: May 2023

Was ist neu?

Spätfolgen einer Krebserkrankung In den letzten Jahrzehnten hat
sich das Langzeitüberleben nach einer Krebserkrankung im Kindes-/Jugendalter stetig verbessert
und liegt mittlerweile entitätenübergreifend bei ca. 80%. In zahlreichen Studien konnte
gezeigt werden, dass über zwei Drittel dieser Langzeitüberlebenden Jahre bis Jahrzehnte nach
Ende der Krebstherapie neue Erkrankungen, sogenannte Spätfolgen, entwickeln. Um diese
rechtzeitig diagnostizieren und behandeln zu können, werden risikoadaptierte
Vorsorgeuntersuchungen empfohlen, die aufgrund des breiten Spektrums an möglichen
Folgeerkrankungen von interdisziplinären Nachsorge-Teams angeboten werden.

Neue Nachsorge-Empfehlungen Aufgrund eines erhöhten
Brustkrebsrisikos sollten Patientinnen nach thorakaler Radiatio in intensivierte
Vorsorgeprogramme eingeschlossen werden. Dies schließt nun auch Patientinnen ab einer
Strahlendosis von 10 Gray ein. Verschiedene Krebstherapien erhöhen das Risiko für eine
niedrige Knochendichte. Daher sollten diese Patient*innen frühzeitig eine
Knochendichte-Messung erhalten. Psychische Erkrankungen können auch Jahre bis Jahrzehnte nach
einer Krebserkrankung auftreten und sollten in der Nachsorge regelhaft adressiert
werden.

Wie sollte die optimale Langzeitnachsorge aussehen? Im
Mittelpunkt der Nachsorge steht ein Kernteam aus Internist*innen, pädiatrischen Onkolog*innen,
psychosozialen Mitarbeiter*innen und Case Manager*innen. Alle ehemaligen Patient*innen sollten
spätestens nach Abschluss der regulären onkologischen Nachsorge, im Gespräch mit den
betreuenden Kinderonkolog*innen über Spätfolgen und Langzeitnachsorge aufgeklärt werden, über
Bedürfnisse und Bedenken zum Thema Nachsorge sprechen können und einen individuellen
Nachsorgeplan nach Risikostratifizierung erhalten.
Veranstaltungsbericht
Authors: Bundschu Marion , Keller Frieder
Published: May 2023

Wir blicken auf eine sehr erfolgreiche Veranstaltung zurück. Die Tagung war sehr gut besucht (
Abb. 1
), es waren akut zusätzliche Stuhlreihen und Stehplätze notwendig. Die Teilnehmer kamen bundesweit aus ambulanten und stationären Einrichtungen und aus Luxemburg, Österreich, Schweiz und Italien.
Migräne und Hormonbehandlung
Authors: Segerer Sabine , Evers Stefan , Holle-Lee Dagny , Keck Christoph
Published: May 2023

Migräne mit Aura erhöht bei Frauen unter 45 Jahren das Risiko für einen Schlaganfall um ca. das Doppelte. Diese Information sollte in die Beratung dieser Frauen einfließen, insbesondere wenn sie weitere behandelbare vaskuläre Risikofaktoren aufweisen. Frauen mit Migräne mit Aura sollten dementsprechend hormonale Kontrazeptiva mit einem Estradiolanteil von >35 µg nicht einnehmen. Häufigkeit und Intensität von Migräneattacken bei Frauen werden maßgeblich durch Östradiolschwankungen im Serum beeinflusst. In der fertilen Lebensphase kommt es durch die physiologischen zyklischen Schwankungen häufig zu Migräne, ebenso in der Perimenopause. In der Postmenopause liegen konstant niedrige Östradiolserumspiegel vor, dies führt eher zur Abnahme der Häufigkeit und Intensität der Migräne. Die transdermale Östrogentherapie ist im Vergleich zur oralen Östrogengabe mit einem geringeren Migränerisiko assoziiert. Bei der Indikationsstellung zur Hormontherapie bei Frauen mit Migräne muss vor allem das erhöhte Thrombembolierisiko beachtet und bei der Auswahl des Hormon-Präparates sowie der Wahl der Applikationsweise (oral versus transdermal) berücksichtigt werden. Eine generelle Kontraindikation zur Hormontherapie bei Frauen mit Migräne besteht nicht. Migräne stellt möglicherweise einen leichtgradigen Risikofaktor für einen Herzinfarkt dar. Hierbei gibt es keine Hinweise, dass das Vorliegen einer Migräneaura oder die Einnahme einer hormonalen Kontrazeption eine Rolle spielen.
Migräne in speziellen hormonellen Situationen
Authors: Segerer Sabine , Evers Stefan , Israel-Willner Heike , Raffaelli Bianca
Published: May 2023

Bei der menstruellen Migräne gibt es verschiedene spezifische Therapieoptionen. So kann ca. 4–5 Tage vor dem erwarteten Menstruationsbeginn ein Östradiolpflaster mit 50 µg pro Tag für wenigstens 7 Tage als Kurzzeitprophylaxe ausprobiert werden; bei Unwirksamkeit kann dies mit 100 µg pro Tag wiederholt werden. Eine hormonelle Kontrazeption mit einem Mischpräparat oder Mehrphasenpräparat kann probatorisch abgesetzt werden. In besonderen Fällen ist eine durchgehende hormonelle Kontrazeption bis zu 2 Jahre sinnvoll.

Patientinnen mit Migräne und Endometriose zeigen während der Menstruation höhere CGRP-Werte als in der Zyklusmitte, wohingegen dies bei Frauen ohne Migräne und Kontrollprobandinnen umgekehrt ist. Dies deutet auf eine mögliche Rolle von CGRP in den perimenstruellen Schmerzattacken hin. Weiterhin ist die Lebensqualität bei Patientinnen mit Migräne und Endometriose deutlich stärker beeinträchtigt als bei nur einer Erkrankung. Daher ist es klinisch relevant, diese Komorbidität zu berücksichtigen.

Eine hormonelle Frau-zu-Mann-Transition geht mit signifikant mehr Kopfschmerzen einher als die umgekehrte Transition. Bei der Mann-zu-Frau-Transition scheint sich dagegen häufiger eine Migräne zu bilden, insbesondere mit Aura. Die Behandlung der Kopfschmerzen und der Migräne erfolgt wie bei anderen Betroffenen auch, allerdings muss die erhöhte Thromboseneigung durch die Hormonbehandlung berücksichtigt werden.
Ökologische Transformation der medizinischen Rehabilitation:
Was können wir wissen und was müssen wir tun?
Authors: Worringen U , Becker P , Reusch A , Küffner R , Reudelsterz C , Pawel A , Weimann E.
Published: May 2023

Klimakrise und schwindende Biodiversität haben auch eine Bedeutung
für die medizinische Rehabilitation in Deutschland.
Rehabilitationseinrichtungen haben zum einen die Folgen der Naturzerstörung
und des Wildtierhandels zu bewältigen, tragen zum anderen aber durch ihr
Verhalten auch zur Erderwärmung und abnehmenden Artenvielfalt bei. National
und international wurden in den letzten Jahrzehnten Handlungsstrategien entwickelt,
um die Klimakrise auszubremsen und deren Folgen zu mildern.
Rehabilitationseinrichtungen haben nur noch wenige Jahre Zeit, um ihren Anteil zu
leisten, der irreversiblen Vernichtung unserer natürlichen Lebensgrundlagen
entgegenzuwirken. Die Deutsche Rentenversicherung als Kosten- und
Leistungsträger der medizinischen Rehabilitation kann die
Rehabilitationseinrichtungen bei dieser großen Herausforderung finanziell
und strategisch unterstützen. Gelingt die ökologische Transformation
nicht, wird Krisenmanagement auch den Rehabilitationsalltag langfristig
bestimmen.
Early Muscle MRI Findings in a Pediatric Case of Emery-Dreifuss Muscular Dystrophy Type 1
Authors: Panicucci Chiara , Casalini Sara , Traverso Monica , Brolatti Noemi , Baratto Serena , Raffaghello Lizzia , Pedemonte Marina , Doglio Luca , Derchi Maria , Tasca Giorgio , Damasio Beatrice M. , Fiorillo Chiara , Bruno Claudio
Published: May 2023

Emery-Dreifuss muscular dystrophy (EDMD) is a rare disease characterized by early contractures, progressive muscle weakness, and cardiac abnormalities. Different subtypes of EDMD have been described, with the two most common forms represented by the X-linked EDMD1, caused by mutations in the EMD gene encoding emerin, and the autosomal EDMD2, due to mutations in the LMNA gene encoding lamin A/C. A clear definition of the magnetic resonance imaging (MRI) pattern in the two forms, and especially in the rarer EDMD1, is still lacking, although a preferential involvement of the medial head of the gastrocnemius has been suggested in EDMD2. We report a 13-year-old boy with mild limb girdle muscle weakness, elbow and ankle contractures, with absence of emerin at muscle biopsy, carrying a hemizygous frameshift mutation on the EMD gene (c.153dupC/p.Ser52Glufs*9) of maternal inheritance. Minor cardiac rhythm abnormalities were detected at 24-hour Holter electrocardiogram and required β-blocker therapy. MRI scan of the thighs showed a mild diffuse involvement, while tibialis anterior, extensor digitorum longus, peroneus longus, and medial gastrocnemius were the most affected muscles in the leg. We also provide a review of the muscular MRI data in EDMD patients and highlight the relative heterogeneity of the MRI patterns found in EDMDs, suggesting that muscle MRI should be studied in larger EDMD cohorts to better define disease patterns and to cover the wide disease spectrum.
Eco-tourism, climate change, and environmental policies: empirical evidence from developing economies
Authors: Shang Yunfeng , Bi Chunyu , Wei Xinyu , Jiang Dayang , Taghizadeh-Hesary Farhad , Rasoulinezhad Ehsan
Published: May 2023

Developing ecotourism services is a suitable solution to help developing countries improve the status of sustainable development indicators and protect their environment. The primary purpose of this paper is to find out the effects of green governance variables and carbon dioxide emissions on ecotourism for 40 developing economies from 2010 to 2021. The results confirmed a uni-directional causal relationship between the green governance indicator and the inflation rate of the ecotourism indicator. In addition, with a 1% improvement in the green governance index of developing countries, the ecotourism of these countries will increase by 0.43%. In comparison, with a 1% increase in the globalization index of these countries, ecotourism will increase by 0.32%. Moreover, ecotourism in developing countries is more sensitive to macroeconomic variables changes than in developed economies. Geopolitical risk is an influential factor in the developing process of ecotourism. The practical policies recommended by this research are developing the green financing market, establishing virtual tourism, granting green loans to small and medium enterprises, and government incentives to motivate active businesses.
Influence of the charge transport layers on charge extraction and interface recombination in quasi-two-dimensional perovskite solar cells
Authors: Ling Qin , Dai Qing , Yang Liu , Wang Xu , Huang Like , Liu Xiaohui , Zhang Houcheng , Zhang Jing , Zhu Yuejin , Hu Ziyang
Published: May 2023

The identification of electronic processes at the charge-selective contact buried interface is very important for photovoltaic research. The main loss of perovskite solar cell (PeSCs) is generally bound up with its charge transfer layer. Especially, the current record for the highest power conversion efficiency of quasi-two-dimensional (quasi-2D) PeSCs is achieved by inverted device configurations, compared with the efficiency of upright structures. This study investigated, the carrier recombination and charge extraction in quasi-2D PeSCs by leveraging scanning probe microscope technology, steady-state photoluminescence (PL) measurements, and time-resolved PL spectroscopy. The built-in potential in quasi-2D bulk perovskite can be regarded as a budget to hinder energy loss in inverted device configurations. Interface photogenerated recombination in quasi-2D PeSCs can be fully comprehended only when the complete device is under consideration. Our work underlines the significance of considering restructuring loss from the perspective of the complete device instead of individual layers or interfaces in quasi-2D PeSCs.
XQC and CSR constraints on strongly interacting dark matter with spin and velocity dependent cross sections
Authors: Li Yonglin , Liu Zuowei , Xue Yilun
Published: May 2023

Dark matter that interacts strongly with baryons can avoid the stringent dark matter
direct detection constraints, because, like baryons, they are likely to be absorbed when
traversing the rocks, leading to a suppressed flux in deep underground labs. Such strongly
interacting dark matter, however, can be probed by dark matter experiments or other experiments
operated on the ground level or in the atmosphere. In this paper we carry out systematic analysis
of two of these experiments, XQC and CSR, to compute the experimental constraints on the strongly
interacting dark matter in the following three scenarios: (1) spin-independent and spin-dependent
interactions; (2) different velocity dependent cross sections; (3) different dark matter mass
fractions. Some of the scenarios are first analyzed in the literature. We find that the XQC
exclusion region has some non-trivial dependencies on the various parameters and the limits in the
spin-dependent case is quite different from the spin-independent case. A peculiar region in the
parameter space, where the XQC constraint disappears, is also found in our Monte Carlo
simulations. This occurs in the case where the interaction cross section is proportional to the
square of the velocity. We further compare our XQC and CSR limits to other experimental
constraints, and find that a large parameter space is allowed by various experiments if the dark
matter mass fraction is sufficiently small, fχ
≲ 10-4.
Inferring redshift and energy distributions of fast radio bursts from the first CHIME/FRB catalog*
Authors: Tang Li , Lin Hai-Nan , Li Xin
Published: May 2023

We reconstruct the extragalactic dispersion measure – redshift (

) relation from well-localized fast radio bursts (FRBs) using Bayesian inference. Then, the

relation is used to infer the redshift and energy of the first CHIME/FRB catalog. We find that the distributions of the extragalactic dispersion measure and inferred redshift of the non-repeating CHIME/FRBs follow a cut-off power law but with a significant excess at the low-redshift range. We apply a set of criteria to exclude events that are susceptible to the selection effect, but the excess at low redshifts still exists in the remaining FRBs (which we call the gold sample). The cumulative distributions of fluence and energy for both the full sample and the gold sample do not follow the simple power law, but they can be well fitted by the bent power law. The underlying physical implications require further investigation.
High-power Fixed-Field Accelerators
Authors: Winklehner D , Adelmann A. , Alonso J.R , Calabretta L , Okuno H , Planche T , Haj Tahar M
Published: May 2023

We report the state of the field of High-Power Fixed-Field
Accelerators (with an emphasis on cyclotrons) as discussed by
international experts during a three-day workshop of the same name
in 2021. The workshop was part of the Snowmass'21 Community
Planning Exercise. Here, we take stock of the world inventory of
high-power fixed-field accelerators, assess available beam currents
and beam powers, and investigate limitations. Furthermore, we
evaluate the role of these machines in particle physics,
directly used or as injectors to other machines, and in industry, as
drivers for (medical) isotope production and, potentially, for
accelerator-driven systems and sub-critical reactors. Finally, we
discuss novel concepts and cutting-edge developments to push the
available current higher at several energy scales, thereby
increasing relative power. Highlights include new spiral inflector
types, direct RFQ injection, H2
+ acceleration,
utilizing vortex motion, and self-extraction schemes. We also
discuss modern computational frameworks to optimize accelerators
more efficiently, and better describe the relevant physical
processes in simulations.
Green Agriculture and Food Security, a Review
Authors: Nwachukwu C. S.
Published: May 2023

Green Agriculture is sustainable farming based on environment conservative philosophies, policies and practices to prevent the degrading of the ecosystem and as such, a traditionally subsistent agricultural-mindset that aims at achieving food security. Green Solutions (GS) in agriculture for food security therefore, is the concept that focuses on environmental sustainability and guides business activities against disruption of nature’s ecological system and biodiversity while ensuring that population growth is unaffected by hunger and food price inflation. The objective of this paper is to enquire on the relevance and feasibility of Green solutions in agriculture to optimally secure the ecosystem in a changing global economy without hunger in the ever increasing world’s population. This research used secondary data in a descriptive research and found that Green Agriculture is improved through sustainable green technological advancement in food production, where renewable energy and organic fertilizers power adequate agricultural productions. The research found that food security for ever-increasing global population therefore, constantly demands a global green solutions’ HMSA-1 (hybrid mode subsistence-agribusiness) concept, through research and development (R&D), for an improved sustainable green agriculture powered by renewable energy.
Equilibrium isotherm investigation on the sequestration of ciprofloxacin from solution via adsorption onto yam peel powder
Authors: Akpomie Kovo G , Ofomatah Anthony C , Chukwuemeka-Okorie Helen O , Ani Julius U , Agbo Sunday C , Odewole Olufemi A , Ojo Francis K , Alum Ogechi L. , Conradie Jeanet
Published: May 2023

In this work, the adsorption of ciprofloxacin onto yam peel biosorbent was studied by batch method. The equilibrium isotherm analysis of the adsorption process was evaluated to provide insight into the removal mechanism. A decrease in the percentage removal (75.0 – 60.8%) and an increase in adsorption capacity (6.0 – 24.3 mg/g) with an increase in ciprofloxacin concentration from 20 – 100 mg/L was obtained. The isotherm was analyzed by the Langmuir, Temkin, Freundlich, and Scatchard models, and the best fit was obtained for the Freundlich model with a R2 of 0.9918. The separation factor in the range of 0.238 – 0.609 and the Freundlich adsorption intensity of 1.492 indicated a favorable adsorption of ciprofloxacin on yam peel. A monolayer adsorption capacity of 42.81 mg/g was obtained for yam peel which was higher than other efficient adsorbents. The Scatchard model gave a linear fit to the uptake data with R2 of 0.9653 and sum square error of 0.008. The isotherm analysis revealed complex adsorption involving multi mechanisms in the overall process. The results of this investigation showed that yam peel could be utilized as an efficient agricultural waste for the adsorption of ciprofloxacin from wastewater.
Estimation of rain attenuation effect on radio wave propagation for broadband communication over northern Nigeria.
Authors: Orji P O , Chiemeka I U , Obiegbuna D C , Eze C M
Published: May 2023

Rain induced effect on propagated signal was studied in this work. The weather parameters of two (2) locations representing two (2) climate zones in Northern Nigeria were employed, using the International Telecommunications Union (ITU-R P.618) rain attenuation model, to investigate the rain effect on strength of propagated signal ranging from Ku-band to V-band of the communication spectrum. The weather data were obtained from the Nigerian Meteorological Agency (NIMET) for a period of 10years (2009-2018) and assimilated into the model using 1-minute integration time rain rate. An elevation angle of 42.5°, which is the conventional elevation angle of systems to NIGCOMSAT-1R over the Atlantic Ocean region, was used. The results showed that annual rainfall amounts trends varied slightly with the different locations and climate zones, having 2018 and 2010 as the highest rain years within the studied years at Maiduguri and Sokoto respectively. Also, the difference between maximum and minimum 0.01% attenuation for the two locations are 2dB-3dB, 3dB-6dB for horizontal polarization and 1dB-1.5dB and 2dB-4dB for vertical polarization respectively at the two locations respectively. Rain attenuation can be managed well for propagated Ku-band signal with sophisticated sensors but above Ku-band, signal strength attenuation induced by rain could be really alarming.
Measurements of Terrestrial Gamma Dose Rate Distributions along Idiroko Road, Ota, Ogun State, Nigeria: Health Implications on Roadside Dwellers
Authors: Omeje M. , Chijuo C. , Okafor I. F. , Adewoyin O. O. , Joel E. S. , Ekwueme B. N. , Nwankwo M. C. , Bello O. O.
Published: May 2023

An extensive study concerning the terrestrial gamma dose rates of the surface soils from Canaanland entrance Road, Ota to Eleha Complex along Idiroko Road, Ota has been carried out to cover the road running across both areas. The In-situ measurements of gamma dose rates and radionuclides were carried out using the Gamma detector (Super Spec RS 125). The result shows that the average outdoor gamma dose rate in the study area is 73.57 nGyh−1. The average values of the radionuclides obtained were 32.9 Bq/kg for 238U, 68.4 Bq/kg for 232Th, and 328.7 Bq/kg for 40K. The background dose rate of 113.3 nGy/h was found in station 9 and is twice higher than the recommended permissible limit of 59 nGy/h suggested by UNCSEAR, 2000, and ICRP, 1999, respectively. Results were obtained based on radiological parameters for the outdoor absorbed dose rate (Dout) with a mean value of 73.57 nGyh−1, the indoor absorbed dose rate (Din) with a mean value of 131.84 nGyh−1, the annual effective dose rate (AEDR) with a mean value of 0.74, the radium equivalent (Raeq) with a mean value of 156.0, the internal hazard index (Hin) with a mean value of 0.51, the external hazard index (Hex) with a mean value of 0.42 and the excess lifetime cancer risk (ELCR) with a mean value of 2.57. Similarly, results obtained from estimated radiological parameters show that the station with the highest value for radium equivalent (Raeq), external hazard index (Hex), internal hazard index (Hin), and annual effective dose rate (AEDR) is Station 9 at 237.91 Bq/Kg, 0.64, 0.72 and 1.13 mSvy−1 respectively while the station with the lowest value for radium equivalent (Raeq), external hazard index (Hex), internal hazard index (Hin) and annual effective dose rate (AEDR) is Station 17 at 85.58 Bq/Kg, 0.23, 0.27 and 0.40 mSvy−1 respectively. This study will serve as a guide on assessing the road construction materials on radioactive contents before application to reduce the exposure risks to the populace along the busy roadsides.
The influence of marinating with red ginger (Zingiber officinale var rubrum) biomass on the physical quality and sensory properties of buffalo meat
Authors: Patriani P , Rosadi
Published: May 2023

Red ginger has active chemical compounds that are beneficial for health. Besides being abundantly available, red ginger also has potential as a natural preservative. The content of active chemical compounds, antimicrobial activity, and protease enzyme support natural preservation methods in the food industry. This study aimed to determine the effect of red ginger concentration on the physical and organoleptic qualities of buffalo meat. The research method was experimental using a completely randomized design with 4 treatments and 5 replications. The treatment consisted of R0 = 0%; R1 = marinade using 20% red ginger concentration; R2 = marinade using 40% red ginger concentration; R3 = marinade using 60% red ginger concentration. The results showed that red ginger concentration had a significant effect (P<0.05) on cooking loss and colour. Red ginger concentration had a very significant effect (P<0.01) on the pH value, tenderness, and aroma but had no significant effect (P>0.05) on the water content of buffalo meat. This research concludes that marinating using red ginger biomass can improve the physical and sensory qualities of buffalo meat during storage. Red ginger biomass had the potential as a spice that can be applied sustainably to improve the buffalo meat quality.
Silica Synthesis from Oil Palm Mill Boiler Ash Under Different Concentration of NaOH and Extraction Time
Authors: Adha Firda Ferdianita , Warsiki Endang
Published: May 2023

Boiler ash from palm oil mill contains high SiO2compound. The boiler ash used in this study was from PKS Cikasungka PTPN VIII, Bogor. The research objectives were to (i) optimize the conditions of silica synthesis process from boiler ash, (ii) analyze the silica content of the synthesis, (iii) and analyze the performance of silica as a moisture absorber. This research was designed using a central composite design (CCD) and the variables were optimized using the response surface method (RSM), silica was synthesis using sol-gel method and silica content was measured using XRF. The performance of silica as a moisture absorber was also studied to determine the appropriate adsorption kinetics at 32%, 64%, 75%, 85% and 97% RH conditions. The results showed that the optimum process conditions that produced the highest silica yield (41.17%) were solvent concentration of 7.39 M and extraction time 78.13 minutes. The silica gel produced is a white powder with SiO2content of 79.20%. The results showed that the water vapor adsorption kinetics at 64% RH was simulated with a first order model, while other treatments with 32%, 75%, 85% and 97% RH were simulated with a second order pseudo model. At 32% RH had a higher k value of 0.086 g/g/day than the 97% RH of 0.011 g/g/day.
Determination of Chemical Content of Vanilla Pods (Vanilla planifolia) Non-destructively Using NIR Spectroscopy
Authors: Budiastra I W , Ramadhana H , Nurfadila N
Published: May 2023

This study aims to assess Near infrared (NIR) spectroscopy to predict vanillin and moisture content non-destructively. Twenty-four samples of vanilla pods (@55 grams/sample) from Sumatra and Sulawesi Island were tested. The reflectance spectra of vanilla pod were measured using a NIRFlex N-500 spectrometer at the wavelength of 1000-2500 nm. After that, the vanillin and moisture content were measured using the reference method. The reflectance spectra were transformed to absorbance spectra and several pre-treatment methods of NIR spectra were applied, and the results were calibrated with chemical data using principal component regression (PCR) and partial least square (PLS) methods. The best estimation for vanillin content using absorbance spectra with OSC pre-treatment at 3 PLS factors with the accuracy parameters of r = 0.91, SEC = 1.31%, SEP = 1.34%, CV = 45.60%, RPD = 2.30 with a consistency of 97.96%. The best prediction of vanillin content using PCR method was obtained with SNV pre-treated spectra at 6 PCR factors with the accuracy parameters of r = 0.89, SEC = 1.47%, SEP = 1.49%, CV = 43.21%, RPD = 2.09 and 101.40% consistency. The best estimation for water content using the PLS method is using the SNV pre-treatment spectra with a PLS factor of 5 with the accuracy parameters of r = 0.99, SEC = 2.11%, SEP = 2.13%, CV = 6.12%, RPD = 7.98 with consistency = 98.86%. While using the PCR method, the best estimation for moisture content was also obtained by SNV pre-treated spectra at 4 PCR factors with the accuracy values of r = 0.99, SEC = 2.33%, SEP = 2.25%, CV = 6.25%, RPD = 7.58 and consistency = 103.90%. The PLS calibration provide a better accuracy than the PCR. The NIR spectroscopy associated with the selected pre-treatments and factor numbers of PLS and PCR can be used for determination of chemical content of vanilla pods.
The improvement of soil, plant growth, and sugarcane yield Saccharum officinarum (L) on account of the application of fly ash granule and dolomite as ameliorating agents in peat soil
Authors: Agusta H , Nisya FN , Adam MF , Iman RN
Published: May 2023

Probably effective application of fly ash granules for ameliorants on sugarcane has not been meaningful reported in tropical agricultural systems and no exact results have not been established. The experiment was arranged from January 2014 up to May 2015 at IPB Bogor, Indonesia. This study aimed to determine the improvement level of additional fly ash granules as soil ameliorants on peat soil in sugar cane cultivation compared to the application of dolomite. The experiment used a complete randomized block design in sub-optimal peat soil. There were five levels of treatment at 50 kg peat soil weight at polybag as the following: without the addition of ameliorant as control (C0) at pH=4.0; Mixing with fly ash granule at pH 6.0 (C1); Mixing with fly ash granule at pH 7.0 (C2); Mixing with dolomite at pH 7.0 (D1), Mixing with dolomite at pH 6.0 (D2). The fly ash granule and dolomite application at a starting value of pH 6.0 or pH 7.0 exposed reliable impact to maintain the pH value of peat soil at least for one year during the growth of the sugarcane plant biomass until harvest. The application of fly ash granule at the starting value of pH 6.0 showed a better effect on plant growth biomass and was sufficient to ameliorate the peat soil to achieve the optimum sugar yield. More than this application rate would be luxurious, it causes no increase in sugar production.
Environmental Impact Analysis of Food Considering Upcycling
Authors: Takemoto Misaki , Yunoki Ayako , Miao Shan , Dowaki Kiyoshi
Published: May 2023

Plant-derived reusable resources such as biomass feedstock for fuel use and upcycling food products have attracted attention for solving environmental problems. In general, food products that are inappropriately consumed include various energy production pathways through the fermentation or gasification process, which would be attractive for solving the anaerobic digestion of wasted foods to make livestock feed. In terms of comprehensive aspects, the use of upcycling food products in various ways is also significant for abating environmental burdens. For instance, products made from unutilized food through cooking, such as jams made from banana peels, have been increasingly marketed. However, while the preparation of unused food reduces food loss, the environmental impacts of their life cycle have not been well considered. To date, our research group has discussed effective consumption pathways, including recycling pathways for the edible parts of foods. For instance, a 100 g edible part of tomato has an environmental impact of 35–57 g-CO2 emissions during the cooking stage. The environmental impact of waste would not be negligible. Therefore, the eco-burden mitigation in the entire life cycle stage is discussed based on the proposal of a practical pathway, comparing the other paths (e.g., energy use).
Juridical Review on the Mandatory Biodiesel Program for Maintaining National Energy Security in Indonesia
Authors: Husada Vikram Surya , Fathurrahman Nur Allif , Wibowo Cahyo Setyo , Joesoef Iwan Erar
Published: May 2023

Indonesia commits to reducing emissions by 29% (unconditional) or 41% (conditional) in 2030, which can be achieved by encouraging the use of new and renewable energy (NRE) by 23% in 2025 while realizing national energy security. A biofuel development plan through a mandatory biodiesel program and green fuel utilization is the main priority to reduce fossil fuel consumption and achieve the energy mix target. As of January 1, 2020, through the mandatory biodiesel program, biodiesel utilization reached 30% (B30) for all diesel engine sectors, which is the highest biodiesel blending program in the world. However, the gap between government policies with emission regulation and existing vehicle technologies in this country might provide challenges in strengthening the sustainability of mandatory biodiesel programs. This study used a normative juridical method to assess the policy and enhance the regulation of the mandatory biodiesel program by obtaining library materials, theories, concepts, principles, and existing rules related to the law perspective. An appropriate and consistent energy mix policy, including its long-term strategy to increase biofuel utilization and maintain a mandatory biodiesel program, is needed to achieve a reducing emissions target. It is essential to strengthen and clarify the policy and road map. The vehicle technology and fuel quality were also crucial for enhancing emission regulation and eliminating low-quality fuels, maintaining a sustained biodiesel program, and achieving national energy security.
Vulnerability and Capability Factors for the Indonesian Biodiesel Supply Chain Resilience
Authors: Agustina F , Vanany I , Siswanto N
Published: May 2023

Biodiesel is one of the biofuels identified as a complement to conventional fuels. Socially and environmentally, biodiesel has been known to provide benefits for creating new jobs, revitalizing rural areas, and reducing global warming. However, the biodiesel industry often faces various challenges, one of which is uncertainty in decision-making. Uncertainty in the supply chain is considered as one of the greatest challenges to managing and controlling the supply chain. Other types of uncertainty are associated with events that decision-makers cannot predict or control, such as natural disasters, accidents, or artificial disasters. Supply chain complexity and global competition have increased their exposure to disruption. Therefore, reacting appropriately to disruptions is necessary for business continuity. Ultimately, resilience capabilities must be developed to help companies become more resilient than before. This paper identifies and determines the vulnerability and capability factors in the Indonesian biodiesel supply chain. The result shows several vulnerability factors, such as turbulence (price, technological failure, and pandemic), external pressures (policy and regulation), and resource limits (supply, capacity, and land availability), that may affect the resilience of the biodiesel supply chain. Meanwhile, capability factors that can be utilized to reduce these vulnerabilities are flexibility in sourcing, flexibility in order fulfilment, capacity, adaptability, visibility, and collaboration. The practical implications are also described in this paper.
Analysis of Corrosion in Production Tubing Using Monoethylene Glycol and Red Ginger as Inhibitors
Authors: Pramana A. A. , Fadillah Y. R.
Published: May 2023

The production system for industrial oil and gas is susceptible to corrosion, which must be controlled in order to sustain production and well direct as the production of tubing is the initial point of contact with the corrosion fluid and material agent. A chemical reaction between corrosive materials and fluids results in corrosion. Due to its mechanical characteristics, stainless steel has a wide range of uses in the building, chemical, and structural sectors. To combat corrosion issues, several chemical inhibitors are used, and numerous studies are actively working to develop organic inhibitors. Rhizome ginger is an organic component that has a high phenol antioxidant content and antioxidant compound, making it useful for corrosion issues. In this study, the effect of monoethylene glycol and ginger extract inhibitors on corrosion was reviewed. The corrosion rate was computed using an olga simulator, and the influence of the inhibitor on the rate of corrosion and the effectiveness of the inhibitors was examined.