bluuebunny/crossref_metadata_2025_split huggingface dataset:
Maxwell quasinormal modes on a global monopole Schwarzschild-anti-de Sitter black hole with Robin boundary conditions
Authors: Wang Mengjie , Chen Zhou , Pan Qiyuan , Jing Jiliang 
Published: May 2021

AbstractWe generalize our previous studies on the Maxwell quasinormal modes around Schwarzschild-anti-de-Sitter black holes with Robin type vanishing energy flux boundary conditions, by adding aglobal monopoleon the background. We first formulate the Maxwell equations both in the Regge–Wheeler–Zerilli and in the Teukolsky formalisms and derive, based on the vanishing energy flux principle,twoboundary conditions in each formalism. The Maxwell equations are then solved analytically in pure anti-de Sitter spacetimes with a global monopole, and twodifferentnormal modes are obtained due to the existence of the monopole parameter. In the small black hole and low frequency approximations, the Maxwell quasinormal modes are solved perturbatively on top of normal modes by using an asymptotic matching method, while beyond the aforementioned approximation, the Maxwell quasinormal modes are obtained numerically. We analyze the Maxwell quasinormal spectrum by varying the angular momentum quantum number$$\ell $$ℓ, the overtone numberN, and in particular, the monopole parameter$$8\pi \eta ^2$$8πη2. We show explicitly, through calculating quasinormal frequencies with both boundary conditions, that the global monopole produces the repulsive force.
General method for including Stueckelberg fields
Authors: Lyakhovich S. L. 
Published: May 2021

AbstractA systematic procedure is proposed for inclusion of Stueckelberg fields. The procedure begins with the involutive closure when the original Lagrangian equations are complemented by all the lower order consequences. The Stueckelberg field is introduced for every consequence included into the closure. The generators of the Stueckelberg gauge symmetry begin with the operators generating the closure of original system. These operators are not assumed to be a generators of gauge symmetry of any part of the original action, nor are they supposed to form an on shell integrable distribution. With the most general closure generators, the consistent gauge invariant theory is iteratively constructed, without obstructions at any stage. The Batalin–Vilkovisky form of inclusion of the Stueckelberg fields is worked out and the existence theorem for the Stueckelberg action is proven.
Nanoparticle‐Mediated Simultaneous Targeting of Mitochondrial Injury and Inflammation Attenuates Myocardial Ischemia‐Reperfusion Injury
Authors: Ikeda Gentaro , Matoba Tetsuya , Ishikita Ayako , Nagaoka Kazuhiro , Nakano Kaku , Koga Jun‐ichiro , Tsutsui Hiroyuki , Egashira Kensuke 
Published: May 2021

Background
The opening of mitochondrial permeability transition pore and inflammation cooperatively progress myocardial ischemia‐reperfusion (IR) injury, which hampers therapeutic effects of primary reperfusion therapy for acute myocardial infarction. We examined the therapeutic effects of nanoparticle‐mediated medicine that simultaneously targets mitochondrial permeability transition pore and inflammation during IR injury.

Methods and Results

We used mice lacking cyclophilin D (CypD, a key molecule for mitochondrial permeability transition pore opening) and C‐C chemokine receptor 2 and found that CypD contributes to the progression of myocardial IR injury at early time point (30–45 minutes) after reperfusion, whereas C‐C chemokine receptor 2 contributes to IR injury at later time point (45–60 minutes) after reperfusion. Double deficiency of CypD and C‐C chemokine receptor 2 enhanced cardioprotection compared with single deficiency regardless of the durations of ischemia. Deletion of C‐C chemokine receptor 2, but not deletion of CypD, decreased the recruitment of Ly‐6C
high
monocytes after myocardial IR injury. In CypD‐knockout mice, administration of interleukin‐1β blocking antibody reduced the recruitment of these monocytes. Combined administration of polymeric nanoparticles composed of poly‐lactic/glycolic acid and encapsulating nanoparticles containing cyclosporine A or pitavastatin, which inhibit mitochondrial permeability transition pore opening and monocyte‐mediated inflammation, respectively, augmented the cardioprotection as compared with single administration of nanoparticles containing cyclosporine A or pitavastatin after myocardial IR injury.

Conclusions
Nanoparticle‐mediated simultaneous targeting of mitochondrial injury and inflammation could be a novel therapeutic strategy for the treatment of myocardial IR injury.
Impact of Coronary Calcification on Clinical Outcomes After Implantation of Newer‐Generation Drug‐Eluting Stents
Authors: Hemetsberger Rayyan , Abdelghani Mohammad , Toelg Ralph , Mankerious Nader , Allali Abdelhakim , Garcia‐Garcia Hector M. , Windecker Stephan , Lefèvre Thierry , Saito Shigeru , Slagboom Ton , Kandzari David , Koolen Jacques , Waksman Ron , Richardt Gert 
Published: May 2021

Background
Percutaneous coronary intervention of calcified lesions was associated with worse outcomes in the era of bare‐metal and first‐generation drug‐eluting stents. Data on percutaneous coronary intervention of calcified lesions with newer‐generation drug‐eluting stents are scarce. Therefore, we investigated the impact of lesion calcification on clinical outcomes in patients undergoing percutaneous coronary intervention with a bioresorbable‐polymer sirolimus‐eluting stent or a durable‐polymer everolimus‐eluting stent.

Methods and Results

Patients (n=2361) from BIOFLOW II, IV, and V trials were categorized into moderate/severe versus none/mild lesion calcification by a core laboratory. End points were target‐lesion failure (TLF) (cardiac death, target‐vessel myocardial infarction, or target‐lesion revascularization) and probable/definite stent thrombosis at 2 years. The agreement in calcification assessment between the operator and the core laboratory was weak (weighted κ, 0.23). Patients with moderate/severe calcification (n=303; 16%) had higher TLF (13.5% versus 8.4%;
P
=0.003) and stent thrombosis rates (2.1% versus 0.2%;
P
<0.0001), whereas target‐lesion revascularization was not different between the groups (5.0% versus 3.9%;
P
=0.302). After adjustment, calcification did not emerge as an independent predictor of TLF (adjusted hazard ratio [aHR], 1.37; 95% CI, 0.89–2.08;
P
=0.148) but did for target‐vessel myocardial infarction (aHR, 1.66; 95% CI, 1.03–2.68;
P
=0.037). TLF rates were similar between bioresorbable‐polymer sirolimus‐eluting stent and durable‐polymer everolimus‐eluting stent (12.6% versus 15.4%,
P
=0.482) in moderate/severe calcification. In none/mild calcification, the bioresorbable‐polymer sirolimus‐eluting stent showed lower TLF (7.5% versus 10.3%,
P
=0.045).

Conclusions
With newer‐generation drug‐eluting stents, moderate/severe lesion calcification was not associated with more TLF after adjustment for the higher risk of patients with coronary calcification, whereas the rate of target‐vessel myocardial infarction was higher. The bioresorbable‐polymer sirolimus‐eluting stent and durable‐polymer everolimus‐eluting stent were equally effective and safe in calcified lesions.

Registration

URL:
https://www.clinicaltrials.gov
; Unique identifiers: NCT01356888, NCT01939249, NCT02389946.
Calling site selection by male Boana punctata (Anura: Hylidae)
Authors: Martins Kleber S. , Ortega Zaida , Ferreira Vanda L. 
Published: May 2021

Abstract
Amphibian species require specific conditions for reproduction, such as cover structures and shelters, in both aquatic and terrestrial habitats, which directly influence reproductive success. A careful selection of calling sites is an important process, driving life-history strategies and tactics in amphibians. Despite this, a significant knowledge gap on how different variables modulate amphibian microhabitat selection processes is noted. Thus, we aimed to: (1) describing the microhabitat use of adult neotropical Boana punctata males during the breeding season; and (2) quantitatively analyzing the selection process of five resource variables (i.e., vegetation cover, vegetation density, vegetation height, water depth, and distance to the water shore). We then compared the microhabitat selection of males that achieved spawning and that of males that did not achieve spawning. To quantify selection, we used a resource selection function approach, applying a case/control design where the calling site used by each male was paired to eight surrounding, unused locations. We found that males selected microhabitats with higher vegetation than surrounding areas for reproduction, which suggests territorialism, and selected microhabitats slightly (∼ 30 cm) inside the assessed ponds. Males also acted randomly with regard to the other variables, not influencing the males’ microhabitat selection. Microhabitat use of males successful in obtaining females to spawn was similar to that of males exhibiting mating failure. In addition to being of ecological interest, our study highlights that preserving tall vegetation and the ponds’ shores is important for the conservation of existing B. punctata urban populations.
432 Centuries of Recorded Science and Technology in Black Africa
Authors: Chinweizu  
Published: May 2021

Abstract
During the 1970s and 1980s, American and European investigators discovered evidence of such African scientific achievements as the following: (1) the domestication of assorted plants in The Egyptian Nile Valley ca. 18000 BP; and domesticated cattle in the Kenyan Highlands, ca, 15000 BP. These were achieved thousands of years before plant and animal domestication in South west Asia, the hitherto presumed place where domestication first occurred; and (2) the making of Carbon steel in Tanzania, in the 1st c. BC, using techniques the discoverers called “semi-conductor technology – the growing of crystals”.
These and other records of advanced scientific achievements, and at such dates, should prompt a profound revision of our understanding of the scientific knowledge developed by pre-20th century Africans before Europeans conquered and colonized and shattered African societies. They should also prompt a revision of the history of science in the world. In this article I shall present 13 exhibits drawing from the history of spectacular African achievements in science and technology. They range in time from ca. 43200 BC to 1952 AD. And they cover, geographically, Lesotho in Southern Africa; to Kenya, Uganda and Tanzania in East Africa; to the Democratic Republic of the Congo in Central Africa; to Egypt in North Africa; and to Liberia and Nigeria in West Africa.
Addressing the Challenge of Epistemicide and African Self-Understanding through a Study of Chinweizu’s Ubuntology: Groundwork for the Intellectual Autonomy of the Black Race
Authors: Ugwuanyi Lawrence Ogbo 
Published: May 2021

Abstract
In this article, I explore the forms of knowledge available among contemporary African intellectuals to identify their possible outcomes. I examine Chinweizu’s concerted effort in Ubuntology: Groundwork for the Intellectual Autonomy of the Black Race (2004). Through a critical review of this monograph, I suggest other ways to address the challenge of knowledge creation and consumption in Africa. I examine the work through the notion of epistemicide. First, I discuss epistemicide – a major claim that the knowledge design in Africa presently is against the intellectual well-being of the African people. I provide justifications of the claim to epistemicide. Thereafter, I provide a critical intervention to the challenge of epistemicide Chinweizu discussed in Ubuntology: Groundwork for the Intellectual Autonomy of the Black Race (2004). Subsequently, I argue for the need to go beyond epistemicide, and to pursue a system of knowledge creation (or knowledge acquisition, or knowledge application) that will liberate Africa.
Chinweizu, Asia’s Rise and Disentangling Africa’s Strategic Incoherence for Africa’s Future
Authors: Adu Amoah Lloyd G. 
Published: May 2021

Abstract
Chinweizu’s wide-ranging and copious intellectual output persistently brings into sharp focus penetrating analysis of Asia’s contemporary rise (read in Chinweizuan terms as autonomous modernization and industrialization) in juxtaposition to Africa’s de-industrialization and with it her firm rootedness at the periphery of global power. “Africa’s Staticity-Asia’s Rise” is a binary that bothers Chinweizu to no end. In two key works presented in Accra and Abuja respectively (Chinweizu, 2010a; 2010b) he tries to find answers. The two papers throw up in my view, a few strategic questions : i. how should Africa relate to a rising Asia in contemporary times? ii. What will it take in real terms for Chinweizu’s Black Superpower to emerge if the Asian example is a compelling one? iii. Is industrialization an existential necessity for Africa? iv. What kind of political, economic and social structures are required for a Black Superpower to emerge to command the respect of the world like Japan, Korea or China? This article will critically engage with these two works in order to attempt to respond to these strategic questions in the hope that it will aid in sharpening the theoretical underpinnings and practical processes for building the Chinweizuan Black Superpower.
Chinweizu and Woman’s Place: A Response to Anatomy of Female Power
Authors: Ezeifeka Chinwe R. 
Published: May 2021

Abstract
This article examines the reality or illusion of the perceived ‘paradises’ of ‘female power’, the purported façade of patriarchy and the claimed pervasiveness of matriarchy in Chinweizu’s Anatomy of Female Power. By deconstructing the extreme essentialist perspectives of AFP, and in line with womanism, the article interrogates the perceived covert matriarchal power sites of the masculinist creation and argues that they essentialize woman’s place in fixed biologically defined gender spaces, hence negating the concept of societal power as exercised rather than possessed. These placements, while trivializing woman’s role in the public sphere, obviously obfuscate the acknowledged dual-sex political system in some African and Nigerian settings. Responding from the generally African and specifically Igbo experience, the work offers an alternative womanist conceptualization, beyond matriarchy-patriarchy and other gender stereotypic binaries; a humanistic form of gender fluidity where the synergy of the two genders will engender complementarity, collaboration, compromise and cooperation.
The Redemption Discourse and Edwards the Missionary
Authors: Njoto Ricky F. 
Published: May 2021

Abstract
This article offers Jonathan Edwards’s Redemption Discourse as an important document that can help us interpret Edwards’s self-understanding as a missionary. In light of this document, this article proposes that Edwards saw himself as a missionary who partook in God’s mission in his battle of light against darkness through political engagements, education, and propagation of the biblical and Protestant gospel to include Native American souls in the God-glorifying communion of the elect.
Rowan Williams’s Christ the Heart of Creation
Authors: Jones Paul Dafydd 
Published: May 2021

Abstract
This article engages Rowan Williams’s Christ the Heart of Creation. Its first section is interpretative. It reads Williams’s book as commending a noncompetitive account of divine and creaturely activity, a strong version of divine aseity, and an expansive ecclesiological-ethical vision. A second section lauds the breadth of Williams’s perspective and his commitment to public intellectual witness. A third section focuses on critique. It draws on Barth in order to advocate a more capacious approach to theological ontology than Williams allows; and it draws on liberationist insights to lend Williams’s christological program a sharper political edge.
“Keep Your Mind in Hell and Despair Not”: Dealing with the Wounds and Complicities of 20th Century Orthodoxy in Estonia Through the Theology of St Sophrony (Sakharov) and Arvo Pärt
Authors: Paert Irina 
Published: May 2021

Abstract
The story of Estonian Orthodoxy, as often told through the narrative of collective trauma, is not homogeneous and uncontested. The co-existence of two Orthodox communities in present-day Estonia, each insisting on exclusive canonical legitimacy and holding different views of the past, the incomplete work of transitional justice, and the untold story of political collaboration appear as irreconcilable differences that challenge the ideals of Christian unity. In order to address these unresolved problems of a traumatic past, the paper will turn to the ascetic theology of twentieth-century Orthodox saints St Silouan (1866–1938) and St Sophrony Sakharov (1896–1993) and to the musical oeuvres of the Estonian composer Arvo Pärt (b. 1935). The approach of these Orthodox ascetics, the article argues, provides an important perspective on Christian mission in a wounded world.
The Effect of Simultaneously Presented Words and Auditory Tones on Visuomotor Performance
Authors: Mendonça Rita , Garrido Margarida V. , Semin Gün R. 
Published: May 2021

Abstract
The experiment reported here used a variation of the spatial cueing task to examine the effects of unimodal and bimodal attention-orienting primes on target identification latencies and eye gaze movements. The primes were a nonspatial auditory tone and words known to drive attention consistent with the dominant writing and reading direction, as well as introducing a semantic, temporal bias (past–future) on the horizontal dimension. As expected, past-related (visual) word primes gave rise to shorter response latencies on the left hemifield and future-related words on the right. This congruency effect was differentiated by an asymmetric performance on the right space following future words and driven by the left-to-right trajectory of scanning habits that facilitated search times and eye gaze movements to lateralized targets. Auditory tone prime alone acted as an alarm signal, boosting visual search and reducing response latencies. Bimodal priming, i.e., temporal visual words paired with the auditory tone, impaired performance by delaying visual attention and response times relative to the unimodal visual word condition. We conclude that bimodal primes were no more effective in capturing participants’ spatial attention than the unimodal auditory and visual primes. Their contribution to the literature on multisensory integration is discussed.
The tamṣīr of Epic Theatre: A Case-Study of Alfred Faraǧ
Authors: Potenza Daniela 
Published: May 2021

Abstract
Bertolt Brecht is generally regarded as the most influential and politically engaged left-wing playwright of the Twentieth century. Traces of his theory and practice are to be found around the world, including in the works of important Egyptian playwrights of the sixties such as Yūsuf Idrīs, Naǧīb Surūr and Alfred Faraǧ. Brecht’s work and ideas did permeate the theory and practice of the three Egyptian playwrights, though even if they all shared a commitment to social issues, critics agree that the Egyptians ignored the philosophical essence of Brecht’s devices or did not have a clear ideological grounding – thus concluding that their understanding of Brecht was partial. Through a study of epic aspects of Alfred Faraǧ’s theatre, this article aims instead to highlight the transformations operated by the playwright to mould epic theatre to fit his own ideology, his aesthetic and the local context in the logic of tamṣīr (Egyptianisation).
Long-Term Clinical Outcomes of an Antibiotic-Coated Non–Cross-linked Porcine Acellular Dermal Graft for Abdominal Wall Reconstruction for High-Risk and Contaminated Wounds
Authors: Robinson Jordan , Sulzer Jesse K. , Motz Benjamin , Baker Erin H. , Martinie John B. , Vrochides Dionisios , Iannitti David A. 
Published: May 2021

Background Abdominal wall reconstruction in high-risk and contaminated cases remains a challenging surgical dilemma. We report long-term clinical outcomes for a rifampin-/minocycline-coated acellular dermal graft (XenMatrix™ AB) in complex abdominal wall reconstruction for patients with a prior open abdomen or contaminated wounds. Methods Patients undergoing abdominal wall reconstruction at our institution at high risk for surgical site occurrence and reconstructed with XenMatrix™ AB with intent-to-treat between 2014 and 2017 were included. Demographics, operative characteristics, and outcomes were collected. The primary outcome was hernia recurrence. The secondary outcomes included length of stay, surgical site occurrence, readmission, morbidity, and mortality. Results Twenty-two patients underwent abdominal wall reconstruction using XenMatrix™ AB during the study period. Two patients died while inpatient from progression of their comorbid diseases and were excluded. Sixty percent of patients had an open abdomen at the time of repair. All patients were from modified Ventral Hernia Working Group class 2 or 3. There were a total of four 30-day infectious complications including superficial cellulitis/fat necrosis (15%) and one intraperitoneal abscess (5%). No patients required reoperation or graft excision. Median clinical follow-up was 38.2 months with a mean of 35.2 +/− 18.5 months. Two asymptomatic recurrences and one symptomatic recurrence were noted during this period with one planning for elective repair of an eventration. Follow-up was extended by phone interview which identified no additional recurrences at a median of 45.5 and mean of 50.5 +/−12.7 months. Conclusion We present long-term outcomes for patients with high-risk and contaminated wounds who underwent abdominal wall reconstruction reinforced with XenMatrix™ AB to achieve early, permanent abdominal closure. Acceptable outcomes were noted.
Policy recommendations of international bureaucracies: the importance of country-specificity
Authors: Busch Per-Olof , Feil Hauke , Heinzel Mirko , Herold Jana , Kempken Mathies , Liese Andrea 
Published: May 2021

Many international bureaucracies give policy advice to national administrative units. Why is the advice given by some international bureaucracies more influential than the recommendations of others? We argue that targeting advice to member states through national embeddedness and country-tailored research increases the influence of policy advice. Subsequently, we test how these characteristics shape the relative influence of 15 international bureaucracies’ advice in four financial policy areas through a global survey of national administrations from more than 80 countries. Our findings support arguments that global blueprints need to be adapted and translated to become meaningful for country-level work. Points for practitioners National administrations are advised by an increasing number of international bureaucracies, and they cannot listen to all of this advice. Whereas some international bureaucracies give ‘one-size-fits-all’ recommendations to rather diverse countries, others cater their recommendations to the national audience. Investigating financial policy recommendations, we find that national embeddedness and country-tailored advice render international bureaucracies more influential.