bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigation of charged-particle induced reactions on 27Al up to 100 MeV leading to the formation of 22Na and 24Na
Authors: Canbula Deniz , Canbula Bora 
Published: March 2023

Abstract
Studies using theoretical models are of great importance for understanding of reaction process and its nature. In this study, nuclear level density model calculations of the cross sections of 27Al are investigated by using TALYS 1.96 computer code. The cross section calculations of 27Al(α,x)22Na, 27Al(α,x)24Na, 27Al(3He,x)22Na, 27Al(3He,x)24Na, 27Al(p,x)22Na and 27Al(p,x)24Na reactions were carried out for incident particle energy up to 100 MeV. In these calculations, four nuclear level density models, namely constant temperature model (CTM), back-shifted Fermi gas model (BSFGM), generalized superfluid model (GSM) and recently proposed semi-classical Fermi gas model (CSCFGM) are used. This model is developed using the simplest model BSFGM. The most obvious difference between CSCFGM and other models is the inclusion of the collective effects in the base of the formulation. The predicted results are discussed and compared with each other and the available experimental data taken from EXFOR library. In order to better evaluate the model results, chi-squared values are calculated and compared with each other for all analyzed reactions. According to the chi-squared results, CSCFGM gives closer predictions to the experimental data compared with the other models in 4 of the 6 analyzed reactions. Therefore, in this study, it is presented that this model can be reliably used in the reaction cross section calculations.
Novel cationic surfactants: synthesis, surface, antimicrobial studies and applicability as an extracting agent for interested element from monazite mineral concentrate
Authors: Abdel-Salam Fatma H. , Abdellah Walid M. , Taher Fatma A. , El-Sheikh Enass M. , Hassanin Mohamed A. , Elamary Doaa M. E. 
Published: March 2023

AbstractTwo novel cationic surfactants based on palmitic acid were prepared to extract uranium from its fluids. The chemical structures of the surfactants prepared were confirmed spectroscopically. The surface activity of these surfactants was evaluated by measuring their surface tension. The cationic surfactants prepared were also tested for their biological activity against Gram-positive and Gram-negative bacteria and fungi. Subsequently, an attempt was made to use these surfactants to remove uranium from the hydrous oxide cake produced after the alkaline degradation of monazite mineral concentrate. To achieve this goal, several experiments were conducted to determine the optimal conditions for uranium extraction and stripping. Under these optimal conditions, the experimental capacity fitted the pseudo-second order kinetic model. Under the investigated optimal stripping factors of 1 M NaCl, acidified with 0.2 M conc. H2SO4, an A:O ratio of 1:1 and a contact time of 15 min, an uranium stripping efficiency of 83% was obtained for the case study. After the complete stripping process, the marketable uranium concentrate was percipitated using hydrogen peroxide as UO4H2O with an uranium content of approximately 76%, which was chemically determined and confirmed by EDAX analysis.
Michelangelo, Lambert Lombard, and the Inalienable Gift of Drawing
Authors: Wouk Edward H. 
Published: March 2023

Abstract
In two exceptional drawings, the Netherlandish artist Lambert Lombard responded to the famous studies of Christ’s Passion that Michelangelo produced as gifts for the Roman noblewoman Vittoria Colonna between circa 1538 and 1541. This article investigates the nature of the drawing as gift in the work of both artists, with respect to practices of giving, reciprocity, and the gift of talent. In the context of his participation in the circle around the embattled English cardinal Reginald Pole, Lombard’s drawings engage with the theological and artistic significance of Michelangelo’s studies, particularly in their depiction of salvation as a gift beyond recompense. Lombard’s response to Michelangelo reflects his position as a northern European artist working in a period of intense crisis about the function of art in systems of belief.
Textur, Transparenz und Täuschung: Blaue Papiere in Pastellen und Schriftquellen des 18. Jahrhunderts*
Authors: Brahms Iris 
Published: March 2023

Abstract
Blue paper was probably the most common substrate onto which pastels were painted during the eighteenth century. Nevertheless, the associated implications have not yet been researched comprehensively. Based on case studies and contemporary source documents as well as in cooperation with conservators from international collections, this article argues for incorporating the supposedly invisible into art historical analyses. The aim is also to question both the categorisation of pastel painting as drawing and its assumed “sweet” aesthetics in order to open our eyes to the versatility of pastel painting. Through an art-theoretical discussion of underlying materials and the dissecting gaze, the article reflects on artificiality, illusionism, verisimilitude, and the subjectified view.
Vija Celmins: The Art of Enervation
Authors: Adams Harrison 
Published: March 2023

Abstract
The painter Vija Celmins has long been an outlier in narratives of postwar American art. Extensive formal analysis of her work, from her early still lifes to her later night skies and ocean surfaces, shows that Celmins was deeply invested in the issues of time, entropy, and energy that proved crucial to her contemporaries, like Robert Smithson and Hans Haacke. However, Celmins found ways of objectifying energy through naturalistic representation and the most traditional of media, painting and drawing. She explores these issues by discovering contradictions within classical mimesis.
Orthoamide und Iminiumsalze, CIX. Umsetzungen von Orthoamiden der Alkincarbonsäuren mit Diolen, Ethandithiol und CH-aciden Nitroverbindungen
Authors: Kantlehner Willi , Edelmann Kai , Vettel Markus , Lehmann Hansjörg , Mezger Jochen , Wolfgang Frey  
Published: March 2023

AbstractOrthoamides of alkyne carboxylic acids17react with 1,2- and 1,3-dioles to give vinylogous cyclic urea acetals. Analogous reactions with ethandithiol deliver vinylogous thioureas. The condensation of orthoamides17with 3,5-dimethyl-4-nitroisoxazol affords 1,1-diamino-butadiene derivatives. From nitro acetaldehyde diethylacetal and orthoamides17can be prepared reactive vinylogous urea acetals, which condense with cyano-acetic acid ester under formation of 7,7-diamino-2,4,6-hexatrienecarboxylic acid esters. 5,5-Bis(dimethylamino)-2-nitro-2,4-butadienecarboxylic acid esters, which are accessible from the orthoamides17and nitro acetic ester, cyclize to give 5-dimethylamino-pyrrole-2-carboxylic acid esters on treatment with zinc/acetic acid.
N-heterocyclic carbene-mediated oxidation of copper(I) in an imidazolium ionic liquid
Authors: Shah Sameera , Pietsch Tobias , Ruck Michael 
Published: March 2023

Abstract
The aerobic oxidation of copper(I) to copper(II) was studied in the ionic liquid (IL) 1-n-butyl-3-methylimidazolium acetate [BMIm][OAc]. Temperatures above 100 °C promote the deprotonation of the C2 atom of the imidazolium ring and the dissolution of CuCl. 1H and 13C NMR spectra indicate the formation of the N-heterocyclic carbene (NHC) complex [NHC] CuICl under inert conditions. Upon aerobic oxidation, air-stable blue-green crystals of [BMIm]2[CuII
2(OAc)4Cl2] precipitate in high yield and the NHC is recovered. X-ray diffraction on a single-crystal of the complex salt revealed a monoclinic structure with space group P21/n. The centrosymmetric dinuclear acetate complex [Cu2(OAc)4Cl2]2– has the paddle-wheel motif and is weakly paramagnetic.
Decoration of the [Nb6O19]8– cluster shell with six Cu2+-centred complexes generates the [(Cu(cyclen))6Nb6O19]4+ moiety: room temperature synthesis, crystal structure and selected properties
Authors: Müscher-Polzin Philipp , Hauberg Patrik , Näther Christian , Bensch Wolfgang 
Published: March 2023

Abstract
Mixing an aqueous solution of K8[Nb6O19]⋅16H2O with a DMSO/H2O solution of Cu(ClO4)2 · 6 H2O and cyclen at room temperature afforded crystallization of blue crystals of [(Cu(cyclen))6Nb6O19]⋅[ClO4]4·≈4H2O after slow evaporation of the solvents. The crystal structure contains the Lindqvist anion [Nb6O19]8– which is covalently expanded by six symmetry-related [Cu(cyclen)]2+ complexes via Nb-μ
2-O-Cu bridges yielding the positively charged [(Cu(cyclen))6Nb6O19]4+ cluster shell. The ClO4
− anions and crystal water molecules reside in the empty spaces of the packed clusters. The compound shows two electronic d-d transitions at energetic positions explaining the blue color.
Azido and desamino analogs of the marine natural product oroidin
Authors: Anders Lisa , Lindel Thomas 
Published: March 2023

Abstract
As part of our program on the synthesis and reactivity of the pyrrole-imidazole alkaloids from marine sponges, the synthesis of the 2-azido analog of the key marine natural product oroidin is reported. In addition, desaminooroidin and its alkyne analog were synthesized. Red-Al reduction of a 4-alkynylimidazole intermediate afforded the (E)-alkene, without having to pass via the (Z)-alkene. Coupling of 4,5-dibromopyrrole-2-carboxylic acid with 2-azidoimidazolylprop-2-en-1-amine was best achieved by EDCI-mediated coupling, which was superior to using the corresponding trichloromethylketone. Use of t-BuOK in acetonitrile can be recommended for the coupling of non-azidated alkenyl and alkynylimidazoles. The azido analog of oroidin underwent click cycloadditions to imidazolyltriazoles.
Pairing Transcranial Magnetic Stimulation and Loud Sounds Produces Plastic Changes in Motor Output
Authors: Germann Maria , Maffitt Natalie J. , Poll Annie , Raditya Marco , Ting Jason S.K. , Baker Stuart N. 
Published: March 2023

Most current methods for neuromodulation target the cortex. Approaches for inducing plasticity in subcortical motor pathways, such as the reticulospinal tract, could help to boost recovery after damage (e.g., stroke). In this study, we paired loud acoustic stimulation (LAS) with transcranial magnetic stimulation (TMS) over the motor cortex in male and female healthy humans. LAS activates the reticular formation; TMS activates descending systems, including corticoreticular fibers. Two hundred paired stimuli were used, with 50 ms interstimulus interval at which LAS suppresses TMS responses. Before and after stimulus pairing, responses in the contralateral biceps muscle to TMS alone were measured. Ten, 20, and 30 min after stimulus pairing ended, TMS responses were enhanced, indicating the induction of LTP. No long-term changes were seen in control experiments which used 200 unpaired TMS or LAS, indicating the importance of associative stimulation. Following paired stimulation, no changes were seen in responses to direct corticospinal stimulation at the level of the medulla, or in the extent of reaction time shortening by a loud sound (StartReact effect), suggesting that plasticity did not occur in corticospinal or reticulospinal synapses. Direct measurements in female monkeys undergoing a similar paired protocol revealed no enhancement of corticospinal volleys after paired stimulation, suggesting no changes occurred in intracortical connections. The most likely substrate for the plastic changes, consistent with all our measurements, is an increase in the efficacy of corticoreticular connections. This new protocol may find utility, as it seems to target different motor circuits compared with other available paradigms.SIGNIFICANCE STATEMENTInduction of plasticity by neurostimulation protocols may be promising to enhance functional recovery after damage such as following stroke, but current protocols mainly target cortical circuits. In this study, we developed a novel paradigm which may generate long-term changes in connections between cortex and brainstem. This could provide an additional tool to modulate and improve recovery.
Severely Attenuated Visual Feedback Processing in Children on the Autism Spectrum
Authors: Knight Emily J. , Freedman Edward G. , Myers Evan J. , Berruti Alaina S. , Oakes Leona A. , Cao Cody Zhewei , Molholm Sophie , Foxe John J. 
Published: March 2023

Individuals on the autism spectrum often exhibit atypicality in their sensory perception, but the neural underpinnings of these perceptual differences remain incompletely understood. One proposed mechanism is an imbalance in higher-order feedback re-entrant inputs to early sensory cortices during sensory perception, leading to increased propensity to focus on local object features over global context. We explored this theory by measuring visual evoked potentials during contour integration as considerable work has revealed that these processes are largely driven by feedback inputs from higher-order ventral visual stream regions. We tested the hypothesis that autistic individuals would have attenuated evoked responses to illusory contours compared with neurotypical controls. Electrophysiology was acquired while 29 autistic and 31 neurotypical children (7-17 years old, inclusive of both males and females) passively viewed a random series of Kanizsa figure stimuli, each consisting of four inducers that were aligned either at random rotational angles or such that contour integration would form an illusory square. Autistic children demonstrated attenuated automatic contour integration over lateral occipital regions relative to neurotypical controls. The data are discussed in terms of the role of predictive feedback processes on perception of global stimulus features and the notion that weakened “priors” may play a role in the visual processing anomalies seen in autism.SIGNIFICANCE STATEMENTChildren on the autism spectrum differ from typically developing children in many aspects of their processing of sensory stimuli. One proposed mechanism for these differences is an imbalance in higher-order feedback to primary sensory regions, leading to an increased focus on local object features rather than global context. However, systematic investigation of these feedback mechanisms remains limited. Using EEG and a visual illusion paradigm that is highly dependent on intact feedback processing, we demonstrated significant disruptions to visual feedback processing in children with autism. This provides much needed experimental evidence that advances our understanding of the contribution of feedback processing to visual perception in autism spectrum disorder.
Una mirada crítica a la economía mundial. Reseña del libro: Contra los zombis: Economía política y la lucha por un futuro mejor de Paul Krugman
Authors: Arias-Sosa María Jesús 
Published: March 2023

This book review presents the main topics covered in the book Arguing with zombies" by Paul Krugman, which compiles some of the articles published by the author throughout his professional career. From his critical approach to several negative ideas coonected to problems in the international economy in fields such as politics, tax reforms and action against climate change. This review links these thematic areas with the discipline of international trade and business.
ÇANAKKALE MUHAREBE SAHASINDA YENİ TESPİTLER
Authors: SABAH İsmail 
Published: March 2023

Gelibolu Yarımadası, Türk tarihinde birçok önemli olaya ev sahipliği yapmış bir coğrafyadır. Osmanlı Türklerinin Rumeli’ye geçişleri, boğaz kenarında olması sebebiyle denizlere ait birçok olay ve yakın tarihin en önemli olayları arasında görülen Çanakkale Muharebeleri bu sahada gerçekleşmiştir.
Bu çalışma, Gelibolu Yarımadasındaki bazı tespit ve değerlendirmeleri içermesi bakımından analitik bir araştırmadır. Araştırmada veri toplamak için literatür taramasıyla birlikte ilgili kurumların ve arşiv merkezilerinin kayıtlarından faydalanılmıştır. Ulaşılan Osmanlı Türkçesi ile yazılmış belgeler araştırmacı tarafından günümüz Türkçesine aktarılmıştır.
Çalışma sonunda gerçekleşen tespitler ziyaret güzergâhına uygun olarak sırası ile paylaşılmıştır. Bu tespitler, Eceabat Merkez Camii, Ağdere’de metfun Safranbolulu Mehmet Çavuş, Kilitbahir Köyü içerisinde eski muhtarlık binası önünde bulunan Damat Öküz Mehmet Paşa Çeşmesi, köy merkezinde şuan da mevcut bulunmayan Kırklar Camii ve yine Kilitbahir Köyü sınırlarında bulunan Saka Baba Dergâhı ve yine Kilitbahir Köyü sınırlarında yer alan Piyale Paşa Bahçesi (Havuzlar Mevkii) ve Kaptan-ı Derya Halil Paşa Çeşmesi ve son olarak Şahindere Şehitliği ile Alçıtepe Köyü arasında yer alan Şehit Tabip Binbaşı Mehmet İsmail Bey hakkındadır.
Minoría de edad y aborto en España: pasado, presente y futuro
Authors: Romeo Malanda Sergio 
Published: March 2023

Objective: to analyze the existing legal regulation in Spain regarding the decision-making capacity of underage adolescents in relation to abortion. Methods: comparison of the legislation in force in Spain in recent decades, the relevant legal literature on the subject and the positions of international organizations. Results: the high ideological component of this problem can be very easily demonstrated. The legislation has undergone numerous reforms over the years, granting certain autonomy to underage women, depending on the political ideology of the ruling party. Conclusion: this is a very important issue that is unfortunately highly ideologized. Given the various conflicting interests, it seems that respect for women's sexual and reproductive rights should take precedence, even if they are minors, provided they have sufficient judgment. There are several reasons for granting minors the full capacity to decide freely on abortion without the need for the consent of their legal representatives, as relevant international organizations have stated.
Received: 12/07/22 | Accepted: 05/02/23
Interrupção legal da gravidez em crianças no Brasil: o princípio do melhor interesse nas veredas do direito, da medicina e da ética
Authors: Silva de Sá Marcos Felipe , Freire de Sá Maria de Fátima , Costa de Oliveira Lucas 
Published: March 2023

Objective: to analyze the right to legal abortion within the theoretical framework of the principle of the best interests of the child. The specific objectives are to analyze the position of the Judiciary and the Prosecution in two cases, the legal basis of the right to abortion in cases of statutory rape, the theoretical framework of the principle of the best interests of the child, and medical aspects such as the (non-)existence of a time frame for abortion in legally admissible cases and the (im)possibility of the exercise of conscientious objection by physicians in this context. Methods: this paper makes use of the sociological of law and the legal-propositional research directions and follows an inductive thinking approach. Documentary and bibliographic analysis is conducted through a qualitative bibliographical review. This paper starts from the theoretical framework of the principle of the best interests of the child provided by Law No. 8.069/1990 to test the hypothesis that legal abortion is prima facie the procedure that best complies with the principle of the best interests of the child. Results: the pregnancy of a child is in itself a violation of a fundamental right. Abortion in the case of rape of a vulnerable person is a fundamental right explicitly guaranteed by law, without temporal or qualitative constraint. Conclusion: the hypothesis was confirmed, so that legal abortion should be understood prima facie as the course of action that best corresponds to the principle of the best interests of the child.
Received: 15/07/22 | Accepted: 16/02/23
Bioética Complexa e a saúde da mulher
Authors: Goldim José Roberto , Fernandes Márcia Santana 
Published: March 2023

Objective: to discuss various ethical approaches from the perspective of the Complex Bioethics Model (CBM) to women's health issues. The CBM aims to review the appropriateness of actions involving biological and biographical aspects in an interdisciplinary perspective, supported by different theoretical references and considering individual and social situations. Methods: narrative literature review considering different bioethical and ethical perspectives related to women's health. Results: research findings include references to 37 texts and reflections by the author, who has conducted health research with CBM for more than 17 years. Conclusion: reflection on the appropriateness of assessments and decisions in the field of women's health should encompass a variety of aspects and perspectives. In this sense, it is necessary that this complex perspective be included in health policy decision making.
Received: 21/12/22 | Accepted: 09/02/23
Quaternary Map, Active Faulting, Tectonic Geomorphology, and Uplift Rate of the Humboldt Range in the Basin and Range Province of Nevada, United States
Authors: Wesnousky Steven G. 
Published: March 2023

ABSTRACT
Fault-truncated, uplifted, and abandoned alluvial fans are frequent along the western flank of the active normal fault bounded Humboldt range. Terrestrial cosmogenic nuclide surface exposure dating of a faulted terrace at Rocky Canyon indicates that uplift of the range has averaged about 0.12 mm/yr during the last ∼160 ka. A similar uplift rate of less than about 0.07 mm/yr over the last 35 ka or more years is estimated from offset of a younger terrace at the same site. Values of extension rate across the range are 0.04–0.07 mm/yr, if it is assumed that the range-bounding fault dips at 60°, in general accord with very low values of contemporary geodetic strain reported for the area. Geomorphology at Rocky Canyon records a period leading up to about 160 ka ago that erosion and aggradation of sediment along the rangefront were dominant over fault generated uplift, at which time faulting again became dominant, leading to uplift, incision, and preservation of ∼160-ka-old alluvial terraces here and elsewhere along the rangefront.
Coseismic and Postseismic Imaging of a Composite Fault System: The Samos 2020 Mw 7.0 Sequence
Authors: Fountoulakis Ioannis , Evangelidis Christos P. , Ktenidou Olga-Joan 
Published: March 2023

ABSTRACT
The 2020 Mw 7.0 Samos earthquake (eastern Aegean Sea) provides a rare chance to study the ongoing interaction of normal and strike-slip faulting during an aftershock sequence in a suspected transfer zone with differential deformation style. After assessing them for possible site-effect influence, we first backproject local strong-motion data to elicit the high-frequency (HF) radiation for the main seismic event using the Source Scanning Algorithm. Our results indicate the existence of multiple HF radiators during the main rupture. Second, we construct a new, high-precision catalog for the aftershock sequence utilizing a deep-learning-based detector and picker. This new catalog contains thousands of additional seismic events compared with the routine catalogs built by local agencies and is accompanied by an enhanced dataset of fault-plane solutions determined with automated techniques. Complex fault networks activated during the aftershock period are mapped in detail, indicating the existence of an active transtensional, possibly asymmetric, basin offshore Samos Island. This detailed seismological characterization of Samos sequence leads to an improved understanding of the controlling mechanisms that operate concurrently during a sequence in a transtensional type of system.