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Climate projections predict higher temperatures and more frequent hurricanes in the tropics. Tropical plants subjected to these stresses may respond by acclimating their physiology. We investigated tropical forest root respiration in response to in situ experimental warming and hurricane disturbance in eastern Puerto Rico. We measured mass-normalized root specific respiration, root biomass, and root traits at the Tropical Responses to Altered Climate Experiment (TRACE), where understory vegetation is warmed + 4 °C above ambient. Our measurements span 5 years, including before and after two major hurricanes, to quantify root contributions to ecosystem carbon fluxes. Experimental warming did not affect root specific respiration at a standard temperature of 25° (RSR25, mean = 3.89 nmol CO2 g−1 s−1) or the temperature sensitivity of root respiration (Q10, mean = 1.75), but did result in decreased fine-root biomass, thereby decreasing area-based estimations of ecosystem-level root respiration in warmed plots by ~ 35%. RSR25 of newer roots, which increased with increasing root nitrogen, showed greater rates 6 months after the hurricanes, but subsequently decreased after 12 months. Root specific respiration did not acclimate to higher temperatures, based on lack of adjustments in either Q10 or RSR25 in the warmed plots; however, decreased root biomass indicates the root contribution to soil carbon dioxide efflux was overall lower with warming. Lower root biomass may also limit nutrient and water uptake, having potential negative effects on carbon assimilation. Our results show that warming and hurricane disturbance have strong potential to affect tropical forest roots, as well as ecosystem carbon fluxes. [ABSTRACT FROM AUTHOR]

Past copper mining within Kilembe valley between 1956–1982 left behind mine tailings rich in potentially toxic elements (PTEs). This study was conducted to assess the concentrations of PTEs in soils and the potential uptake by forage. Tailings, soils and forage were collected and analyzed using ICP-MS. The study established that over 60% of grazed plots contained high concentrations of Cu, Co, Ni and As. Copper in 35%, Co in 48% and Ni in 58% of forage soil plots exceeded the thresholds for agricultural soils. Bio-accumulation of Zn and Cu, was observed. Zinc in 14% of guinea grass (Panicum maximum), 33% coach grass (Digitalia Scarulum) and in 20% of elephant grasses (Penisetum perpureun) exceeded thresholds of 100–150 mg kg−1. Copper (Cu) concentrations in 20% of Penisetum perpureun and 14% of Digitalia Scarulum exceeded grazing thresholds of 25 mg kg−1. Containment of tailing erosion should be explored to control erosion of tailings into grazing areas. This is the first study of this kind which has investigated forage uptake of trace elements from Kilembe contaminated soils and the possible risks for grazing animals. It is also the first study to profile the differences in bioaccumulation potentials of different species of forage. The study further identifies a forage species of guinea grass and couch grass as having bioremediation potentials for zinc contaminated soils. [ABSTRACT FROM AUTHOR]

In this paper, we define the notions of the C-trace pseudo-spectrum, the M-determinant pseudo-spectrum and the pseudo-spectrum of non-Archimedean matrix pencils. Many results are proved about the C-trace pseudo-spectrum, theM-determinant pseudo-spectrum and the pseudo-spectrum of non-Archimedean matrix pencils. Examples are given to support our work. [ABSTRACT FROM AUTHOR]

Copyright of Santander. Estudios de Patrimonio is the property of Santander Estudios de Patrimonio and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The article attempts to adopt a systemic view of Wisława Szymborska’s poetry from the perspective of a postlyrical poem treated as an epistemological object. It focuses on poetic practice, moving from the principle of correlation to the rules of realist ontology and virtuality. Szymborska’s questions are not subject to an existential calculus but to an analysis of natural possibilities and necessities, exploring why, how, and to what extent the world, and subsequently the poem–world, can be thought. [ABSTRACT FROM AUTHOR]

Copyright of Ge-Conservación is the property of Instituto del Patrimonio Cultural and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

I will tackle serial appropriations of Shakespeare’s Macbeth in The Wire (David Simon, 2002–2008) and Breaking Bad (Vince Gilligan, 2008–2013). Both complex TV series recast Macbeth in the context of narcocapitalism. Rather than constituting an alternative to mainstream capitalism, narco-capitalism maintains the American and global socioeconomic orders as depicted in both series. Paying attention to what will be defined as Shakespeare’s archive, it will be shown that traces from Macbeth are reactivated in The Wire and Breaking Bad. Shakespeare’s archive is formed by traces of Shakespeare’s dramatic and narrative sources, quartos, folios, later editions and adaptations. This corpus displays verbal and non-verbal features of Shakespeare’s oeuvre. Taken together, traces and reenactments of Shakespeare highlight the multifarious and competing ways in which Shakespearean appropriations sail through the depth and length of complex TV. To illustrate this, I will use archive theory, transmedia theory and narcocapitalism as lenses of analysis. This framework helps explain archival strategies employed for Shakespearean appropriation within the social context of both series. The results reveal that Shakespeare’s archive in both works leads to an ambivalent ethical assessment of the potentialities of narco-capitalism. [ABSTRACT FROM AUTHOR]

A k -power hypergraph is obtained from a graph by adding k − 2 new vertices to each edge of the graph. A k -uniform double hyperstar is the k -power hypergraph of a double star. The k -uniform hypertriangle is the k -power hypergraph of a triangle. We present the characteristic polynomials of uniform double hyperstars by using the Poisson formula. Moreover, we find expressions for the traces of uniform hypertriangles and use these to obtain the characteristic polynomials of uniform hypertriangles. [ABSTRACT FROM AUTHOR]

Copyright of Anadolu University Journal of Art & Design / Sanat & Tasarım is the property of Anadolu University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this paper, we demonstrate some inequalities for positive linear maps on matrices. Moreover, we discuss lower bounds for the spread of nonnegative matrices which provides improvement over the existing bounds. [ABSTRACT FROM AUTHOR]

In this paper, we mainly give a generalized refinement of Young's inequality due to Yang and Wang [J. Math. Inequal., 17 (2023), 205-217]. More precisely, we show that... As applications, we obtain some inequalities for operator, Hilbert-Schmidt norm and trace class norm. [ABSTRACT FROM AUTHOR]

We study the subfield subcodes of projective Reed–Solomon codes and their duals: we provide bases for these codes and estimate their parameters. With this knowledge, we can construct symmetric and asymmetric entanglement-assisted quantum error-correcting codes, which in many cases have new or better parameters than the ones available in the literature. [ABSTRACT FROM AUTHOR]

This study devotes to Heisenberg’s uncertainty inequalities of complex-valued functions in two free metaplectic transformation (FMT) domains without the assumption of orthogonality. In our latest work (Zhang in J Fourier Anal Appl 27(4):68, 2021), it is crucial that the FMT needs to be orthogonal for a decoupling of the cross terms. Instead of applying the orthogonality assumption, our current work uses the trace inequality for the product of symmetric matrices and positive semidefinite matrices to address the problem of coupling between cross terms. It formulates two types of lower bounds on the uncertainty product of complex-valued functions for two FMTs. The first one relies on the minimum eigenvalues of A j T A j - B j T A j , B j T A j , B j T B j - B j T A j , while the other one relies on the minimum eigenvalues of A j T A j + B j T A j , B j T B j + B j T A j and the maximum eigenvalues of B j T A j , where A j , B j , j = 1 , 2 are the blocks found in symplectic matrices. Also, they are all relying on the covariance and absolute covariance. Sufficient conditions that truly give rise to the lower bounds are obtained. The theoretical results are verified by examples and experiments. [ABSTRACT FROM AUTHOR]

In this paper, three discrete transforms related to vector spaces over finite fields are studied. For our purposes, and according to the properties of the finite fields, the most suitable transforms are as follows: for binary fields, this is the Walsh–Hadamard transform; for odd prime fields, the Vilenkin–Chrestenson transform; and for composite fields, the trace transform. A factorization of the transform matrices using Kronecker power is given so that the considered discrete transforms are reduced to the fast discrete transforms. Examples and applications are also presented of the considered transforms in coding theory for calculating the weight distribution of a linear code.

Sanat tarihine yepyeni bir soluk getiren Aby Warburg, 1924-1929 yıllarında adını bellek tanrıçası Mnemosyne’den alan bir Bellek Atlası oluşturur. Warburg, sanat tarihinin, doğrusal zaman anlayışına dayalı ve birbiri ardına gelen sanat akımlarının tarihi olduğunu varsayan geleneksel yaklaşımını terk eder. Buna göre sanat tarihi, imge temelinde sanat eserlerinin birbirleriyle kurduğu etkileşimler üzerinden düşünülmelidir. İmgeler, zaman ve mekandan bağımsız birbiriyle ilişkilendirilerek atlasta yer alırken, bu şekilde aslında durağan olan imgelere bir nevi sinemasal bir hareket kazandırır. Film kuramlarının çağdaş yorumlarında Aby Warburg’un imge temelli yaklaşımının izleri rahatlıkla gözlemlenebilmektedir. Sözgelimi, Philippe-Alain Michaud Warburg’un analizlerini hareketli imgeler üzerinden görsel kültür ve sinema ile ilişkilendirmektedir. Giorgio Agamben ise geliştirdiği film kuramını Warburg’dan esinlenerek ele alırken, tarihçinin çalışmalarını bir tür ‘imge bilimi’ olarak tanımlamakta ve dolayısıyla ‘Bellek Atlası’ndaki imgeleri birer film karesi gibi görmektedir. Gilles Deleuze ise kendine özgü sinema tarihi ve felsefesinde Warburg’a doğrudan bir atıfta bulunmamasına karşın düşünürün sinemaya dair kavramları Warburg’un sanat tarihi anlayışı açısından tartışılacaktır. Böylelikle, bu makalede imge, hareket ve zaman gibi kavramlar Warburg ve sinema ilişkisi üzerinden tartışılacaktır.

The present study deals with erasure in commercial advertisements of multinational companies. For this purpose, commercial advertisements for food products were selected. The data were collected from the official websites of the relevant companies. The study applied Stibbe’s (2015) theoretical framework to analyze the element of erasure. The study focused primarily on erasure. However, other aspects such as conviction and metaphor, have also been analyzed to erasure. The study results reveal that nature has been partially or entirely erased from commercial advertisements. Nature and its resources (cows and fruits) are presented in more abstract form, or there is no mention. The study also found that the advertisements underpin the stories of conviction, metaphor, and erasure. The study is significant because language does ideological work in how one thinks, writes, and talks about the ecosystem.

Several studies showed the role of trace elements in the increase in human susceptibility to cardiovascular diseases. Carotid artery stenosis is a leading cause of ischemic neurological events. We aimed to analyze the potential role of trace elements in hair as biomarkers of atherosclerotic carotid artery disease. Materials and Methods: Fifty-seven (n = 31 (54%) men and n = 26 (46%) women) individuals with a mean age of 67.7 ± 7.7 years who were white, European, non-Hispanic, and non-Latino were diagnosed and treated in hypertensiology/internal medicine and surgical departments over three consecutive months. Of these patients, forty were diagnosed with advanced carotid artery disease, and seventeen comprised a group of healthy controls. Inflammatory and oncological diseases were exclusion criteria. Hair samples were collected, and 14 trace elements were analyzed. Clinical and laboratory data were compared and revealed differences in the co-existence of diabetes (p = 0.036) and smoking history (p = 0.041). In the multivariable analysis, zinc, chrome, and copper revealed predictive value for the occurrence of carotid artery disease, and their combined receiver operating curve showed area under the curve of 0.935, with a sensitivity of 95% and a specificity of 82.4%. Conclusion: Our report shows the significance of trace elements analyses in patients with advanced carotid artery disease. We revealed that zinc, copper, and chrome concentrations are of particular importance in differentiating atherosclerotic disease and may serve as biomarkers of carotid atherosclerosis. Hair samples represent an easily obtained and beneficial biomatrix for the assessment of biomarkers. [ABSTRACT FROM AUTHOR]

In this paper, we characterize disjoint hypercyclic finite sequences of elementary operators. We provide sufficient conditions for a finite sequence of the dual elementary operators to be disjoint topologically transitive. Finally, we give concrete examples and applications. [ABSTRACT FROM AUTHOR]

Solving polynomial eigenvalue problems with eigenvector nonlinearities (PEPv) is an interesting computational challenge, outside the reach of the well-developed methods for nonlinear eigenvalue problems. We present a natural generalization of these methods which leads to a contour integration approach for computing all eigenvalues of a PEPv in a compact region of the complex plane. Our methods can be used to solve any suitably generic system of polynomial or rational function equations. [ABSTRACT FROM AUTHOR]

In this article, we evaluate integrals which are connected to the complex multivariate beta integral. These results are useful in computing expected values of trace functions of complex random matrices. [ABSTRACT FROM AUTHOR]

Copyright of Journal of the Chinese Society of Rare Earths is the property of Editorial Department of Journal of the Chinese Society of Rare Earths and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Let be a faithful normal semifinite trace on a von Neumann algebra . The block projection operator in the *-algebra of all -measurable operators is investigated. It has been shown that for any operator . If is invertible in , then is invertible in . Let . Then, (i) if (or if ), then , (ii) if and only if for all ; and (iii) if are projections, then . Four corollaries have been obtained. One example presented in paper (A. Bikchentaev and F. Sukochev, "Inequalities for the Block Projection Operators," J. Funct. Anal. 280 (7), 108851 (2021)) has been refined and strengthened. [ABSTRACT FROM AUTHOR]

The article reflects on the possible dystopian world described by Cormac McCarthy. In his novel The Road, McCarthy employs a cinematic way of framing images and an interesting method of using filters and screens. How and by means of what objects do the characters experience the views of an agonal world? Is there still room for a sensual relationship between man and (residual) nature? What role do traces play? Further issues examined include defining the function of monochromatic colour schemes in the novel and references to charcoal and coffee painting techniques. [ABSTRACT FROM AUTHOR]

Copyright of Cyber Security & Data Governance is the property of Editorial Office of Information Technology & Network Security and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pós: Revista do Programa de POS-Graduacao Em Artes - EBA/UFMG is the property of Pos - Programa de Pos-graduacao em Artes (PPG-Artes) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

It is very difficult to capture the multi-dimensional phenomena such as asymmetric flow and temperature distributions with the one-dimensional (1D) model, obviously, due to its inherent limitation. In order to overcome such a limitation of the 1D representation, many state-of-the-art system codes have equipped a three-dimensional (3D) component for multi-dimensional analysis capability. In this study, a standard multi-dimensional analysis model of APR1400 (Advanced Power Reactor 1400) has been developed using TRACE (TRAC/RELAP Advanced Computational Engine). The entire reactor pressure vessel (RPV) of APR1400 has been modeled using a single 3D component. The fuels in the reactor core have been described with detailed and coarse representations, respectively, to figure out the impact of the fuel description. Using both 3D RPV models, a comparative analysis has been performed postulating a double-ended guillotine break at a cold leg. Based on the results of comparative analysis, it is revealed that both models show no significant difference in general plant behavior and the model with coarse fuel model could be used for faster transient analysis without reactor kinetics coupling. The analysis indicates that the asymmetric temperature and flow distributions are captured during the transient, and such nonuniform distributions contribute to asymmetric quenching behaviors during blowdown and reflood phases. Such asymmetries are directly connected to the figure of merits in the LBLOCA analysis. Therefore, it is recommended to employ a multi-dimensional RPV model with a detailed fuel description for a realistic safety analysis with the consideration of the spatial configuration of the reactor core.

This paper is devoted to some selected topics of the theory of special orthogonal group SO(3). First, we discuss the trace of orthogonal matrices and its relation to the characteristic polynomial; on this basis, the partition of SO(3) formed by conjugation classes is described by trace mapping. Second, we show that every special orthogonal matrix can be expressed as the product of three elementary special orthogonal matrices. Explicit formulas for the decomposition as needed for applications in differential geometry and physics as symmetry transformations are given.

Accurate identification of nitrate (NO3−) sources is the premise of non-point source pollution control in watersheds. The multiple isotope techniques (δ15N-NO3−, δ18O-NO3−, δ2H-H2O, δ18O-H2O), combined with hydrochemistry characteristics, land use information, and Bayesian stable isotope mixing model (MixSIAR), were used to identify the sources and contributions of NO3− in the agricultural watershed of the upper Zihe River, China. A total of 43 groundwater (GW) and 7 surface water (SFW) samples were collected. The results showed that NO3− concentrations of 30.23% GW samples exceeded the WHO maximum permissible limit level, whereas SFW samples did not exceed the standard. The NO3− content of GW varied significantly among different land uses. The averaged GW NO3− content in livestock farms (LF) was the highest, followed by vegetable plots (VP), kiwifruit orchards (KF), croplands (CL), and woodlands (WL). Nitrification was the main transformation process of nitrogen, while denitrification was not significant. Hydrochemical analysis results combined with NO isotopes biplot showed that manure and sewage (M&S), NH4+ fertilizers (NHF), and soil organic nitrogen (SON) were the mixed sources of NO3−. The MixSIAR model summarized that M&S was the main NO3− contributor for the entire watershed, SFW, and GW. For contribution rates of sources in GW of different land use patterns, the main contributor in KF was M&S (contributing 59.00% on average), while M&S (46.70%) and SON (33.50%) contributed significantly to NO3− in CL. Combined with the traceability results and the situation that land use patterns are changing from CL to KF in this area, improving fertilization patterns and increasing manure use efficiency are necessary to reduce NO3− input. These research results will serve as a theoretical foundation for controlling NO3− pollution in the watershed and adjusting agricultural planting structures. [ABSTRACT FROM AUTHOR]

Indoor detection of volatile organic compounds (VOCs) concentration is necessary due to the serious toxicity hazards even at trace level. However, physisorbents usually exhibit weak interactions especially in the presence of trace concentrations of VOCs, thus exhibiting poor responsive signal. Herein, we report a new flexible metal–organic framework (MOF) that exhibits interesting pore‐opening behavior after immersing in H2O. The pore‐opening phase shows significant (≈116 folds) and extremely fast (<1 minute) fluorescence enhancement after being exposed to saturated benzene vapor. The limit of detection concentration for benzene vapor can be calculated as 0.133 mg L−1. Thus this material represents the first MOF to achieve visual detection of trace benzene vapor by the naked eyes. Theoretical calculations and single‐crystal structure reveal that the special "bilateral π–π stacking" interactions between the host and guest, which facilitate electron transfer and greatly enhance the intensity of fluorescence. [ABSTRACT FROM AUTHOR]

Mike McCormack's Solar Bones entails various time-discourses which the following will trace: (I) The Temporal Trace as Form and Imprint by which the text itself leaves an iconic mark of the configuration of space into the novel's narrative time. (II) The Temporal Trace as Content and Stream through which the text accounts for the fact that it is not bound to any human notion of time. And, finally, (III) The Temporal Trace as Experience which aims at elucidating the experiential time of the reading process. Utilising Paul Ricœur's thoughts in Time and Narrative (Vol. 1–3, 1988), I will analyse and read these notions of time with and against Ricœur's integration of phenomenological time, the interplay of trace as well as the various forms of mimesis introduced in his work. Solar Bones traces multiple temporalities that make it necessary to partially reconceptualise the visceral nature of experiencing time in literary texts. [ABSTRACT FROM AUTHOR]

Trace is a versatile concept with a wide spectrum of applications beyond detective fiction. Indeed, trace offers a key for gauging novel reading experiences. The collected articles exemplify that the qualities of trace, as conceptualised by Paul Ricoeur's hermeneutical phenomenology, help to unfold the relation of embodiment and the novel. The essays examine the manner in which trace inside the novel cues readers to mimetic effects. In the light of the recent debates about critique and postcritique, the introduction elucidates the less well-known rootedness of Ricoeur's theory of interpretation in the phenomenology of the lived body and locates the concept of trace therein. [ABSTRACT FROM AUTHOR]

Known as the winner of the 2020 Man Booker Prize, Douglas Stuart's debut novel Shuggie Bain evokes childhood queerness, which is entangled in the deindustrialised urban landscape of 1980s Glasgow. Synthesising queer and trace theory in nine steps—disruption, bent temporality, materiality and embodiment, physical orientation, medium specificity, reading and bearing traces, involuntariness and the lack of motive, absence, and, lastly, ambiguity and story—, the present article argues that traces in Shuggie Bain are vital for the evocation of the queer child. Traces such as ghostly footprints; trampled grass; blood, saliva, and chlorophyll smears; and ripped clothing entangle the protagonists in their environment. The use of traces helps to transcend a single turning point of retrospection since the web of traces evokes nuanced changes in the protagonist's embodiment. [ABSTRACT FROM AUTHOR]

Both blood on snow and footprints in sand illustrate the ways that bodies impress their physical presence upon their surroundings and leave behind traces of their labouring, suffering, and travelling. In examining the multiplicity of remnants in nineteenth-century fiction, my analysis draws upon the French philosopher Paul Ricoeur's model of triple mimesis and his definition of the trace uniting material marks with memory in order to investigate how characters' bodily agency is intertwined with residue, ruins, and reminiscence. With a comparative approach, I evaluate how two Victorian novels employ imprints, inscriptions, and stains to highlight characters' mobile bodies and thus stimulate readers' involvement in protagonists' anguish, explorations, and romantic entanglements. Wilkie Collins's The Woman in White and Thomas Hardy's Jude the Obscure exemplify how a wide variety of memorable vestiges assert the past infringing upon the present, thereby implicating emotional devastation, physical destruction, and crucial discoveries of hidden secrets. [ABSTRACT FROM AUTHOR]

Omar El Akkad's American War (2017) presents a dark vision of what the United States might devolve into if climate change, haphazard adaptation, and the political polarisation of the country continue unchecked. Analysing the four overarching facets of trace—visibility, materiality, environment, and human interaction—on the level of the novel's narrative composition, the article argues that El Akkad offers more than just a cognitively estranged story about the making of a future American terrorist. Foregrounding the complex relationship between its central protagonist's personal losses and the bitter war she fights in a climate-changed environment, American War deliberately employs what El Akkad has called "weaponized empathy" to allow readers to understand on a visceral level what drives people's thoughts and actions once they have been robbed of the things and people they care for and embody the traces of what has been lost. [ABSTRACT FROM AUTHOR]

Copyright of Journal of the College Of Basic Education is the property of Republic of Iraq Ministry of Higher Education & Scientific Research (MOHESR) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

My book "Eigenvalues and s-Numbers" (1987) deals with classical traces of Banach space operators. Now an extension to singular traces is required. Hopefully, this (mostly) self-contained, comprehensive survey will serve that purpose. The second part is devoted to the future of the theory of traces. My mathematical heritage consists in a collection of open problems, which I was unable to solve. Good luck. [ABSTRACT FROM AUTHOR]

Media coverage of migrant and refugee camps often concerns not everyday life in camps, but violence or a camp's outright destruction. These portrayals risk inscribing camps into public memory as sites of danger and criminality, or of vulnerability without agency. What methods of engaging with a camp's aftermath and its representation might enable more complex understandings of the reality of life in camps? We engage the camp as a site of inscription to reconsider the role of objects, structures, and writing left behind when a camp is destroyed or evacuated. Our proposed methodology of reading traces recognizes these objects and representations as testimonial inscriptions that counter erasure and that record frictions of (in)visibility and space, attesting to the camp as a site not of abjection, but of negotiation. [ABSTRACT FROM AUTHOR]

This volume of Refract investigates the power dynamics of (in)visibility through “haunting” and the “trace.” A form of way making, the trace offers itself as an object, subject, and action, as both a remnant and a becoming. Haunting similarly defies legibility in that it occupies a discomforting space between something/somebody and nothing/nobody—not simply a vestige of previous realities but an active force that unsettles life-and-death worlds. As a journal of visual studies, Refract is drawn to the power dynamics inherent in the zone between the visible and the invisible: a zone that the haunting and the trace both inhabit. This introduction does not seek to define hauntings and traces per se, but hopes instead to offer spaces for their forms to emerge. One starting point is the tension between absence and presence instantiated by the terms haunting and the trace.

Abstract The initial boundary value problem of the evolutionary p i $p_{i}$ -Laplacian equation u t = ∑ i = 1 N ∂ ∂ x i ( a i ( x ) | u x i | p i − 2 u x i ) $$ {u_{t}}=\sum_{i=1}^{N} \frac{\partial}{\partial x_{i}} \bigl(a_{i}(x) \vert u_{x_{i}} \vert ^{p_{i}-2}u_{x_{i}} \bigr) $$ is considered, where a i ( x ) $a_{i}(x)$ is nonnegative but is with 0 measure degeneracy. The weak solutions do not belong to B V x ( Q T ) $BV_{x}(Q_{T})$ , how to define the trace in a reasonable way? This is the main topic of this paper. A suitable new boundary value condition is quoted and the stability of weak solutions follows naturally.

The specific configuration of the safety systems in VVER-1000/V320 reactors allows a comprehensive study of the Loss of Coolant Accident (LOCA). In the present paper, a verification of the success criteria of the event trees headers for the medium and large break LOCA sequences is conducted. A detailed TRACEV5P5 thermal-hydraulic model of the reactor has been developed, including all safety systems. When analyzing the results of all sequences, some conservatism is observed in certain specific configurations as the success criterion of some headers is not consistent with the classic PSA level 1. Therefore, new proposals for the LOCA event trees are performed based on a reconfiguration of LOCA break ranges and the use of the expanded event trees approach.

High-purity quartz, famous for low impurities and high purity, has been widely used in optical fiber communication, photovoltaic, aerospace, semiconductor displayand other high-tech industries. Aluminosilicate mineral is one of the most typical gangue minerals in quartz ore, mainly including potassium, albite, mica, etc. With the existing conventional separation process, it is difficult to effectively and efficiently remove these intractable trace and micro-fine feldspar and mica. In this paper, the basic status of separation of aluminosilicate gangue minerals from high-purity quartz is described in detail, and the frontier technology of activation and separation of refractory trace and micro-fine feldspar and mica is systematically summarized. Based on the research progress of the basic theory of high-purity quartz in China in recent years, some reasonable scientific suggestions are put forward for the separation of micro-and micro-fine aluminosilicate gangue minerals in the crystal interface and inner encapsulation of high-quality quartz.

The main aim of this article is to study admissible congruences on a type B semigroup. First, we give characterizations of the minimum admissible congruence whose trace is a normal congruence on a type B semigroup. After obtaining some properties of admissible congruences with the same trace on a type B semigroup, we introduce the notion of a normal subsemigroup and give characterizations of the minimum and maximum admissible congruences whose kernels are normal subsemigroups. Finally, the concept of a congruence pair of a type B semigroup is given, and two congruences associated with the congruence pair are obtained.