bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spatial Histories: Geography, Memory, and Alternative Narratives of the Iranian Revolution of 1979
Authors: Masoumi Azar , Ghorbani Ronak 
Published: August 2023

Abstract
In distinction from the overwhelming tendency to conceive history primarily in terms of its temporal chronologies, this paper considers the spatiality of history and historical memory. Engaging with seven Oral History interviews with diasporic Iranians in Toronto on the Iranian Revolution of 1979, we show that narratives of historical events are deeply shaped by the geographical location of narrators: those emplaced in differing geographical locations at the time of the Revolution not only remember disparate events, but also associate distinct temporal points with the Revolution. For instance, while those remembering the Revolution from the capital city of Tehran produce narratives that closely align with the official historiography of the Revolution (such as in recounting street protests and the culmination of the Revolution on February 11th, 1979), others remember events and dates that are only peripheral to official accounts (such as the arson at Cinema Rex on August 19th, 1978, or the hostage crisis that lasted from November 4th, 1979 to January 28th, 1980). In other words, both the content of memories (what narrators remember) and their temporal associations (which dates narrators recall) are informed by the embodied geography of memories. Hence, those whose geographical locations diverge from the largely capital-focused vantage point of official histographies produce narratives that diverge from these accounts. In short, geography and embodied emplacement are central to historical narrative, whether authoritative or narrated form geographical margins.
The Death of “Woke” Culture: How Florida’s Attack on Progressive Policies has Created a History Curriculum that Indoctrinates the Youth
Authors: Thurlow Katherine 
Published: August 2023

Abstract
In the United States, state governments determine laws and policies regarding public education, creating disparities in content and standards across the country. Several conservative states, including Florida, have moved political battles into the classroom by pushing their own agendas into history curricula. Fears amongst Republican lawmakers and their constituents about progressive “woke” culture has been the foundation of attacks against equity and diversity, creating massive holes in what is allowed to be taught to students. In a state where educational decisions are chosen by right-wing political figures and parents, as opposed to the educators themselves, the future generations are being taught a whitewashed, simplified history that steers clear of complex conversations about race, sexuality, and other sensitive difficult historical topics that could potentially cause white students to feel guilty about the past of their country. As a result, the efforts of the conservative party to destroy the perceived “woke” threat from the left has instead created a system of historical manipulation that is indoctrinating the youth in classrooms to believe incomplete, sometimes falsified history that furthers a prejudiced and discriminatory society.
Public Debates, Public History, and School History Curricula: The Greek Case
Authors: Gatsotis Panayotis 
Published: August 2023

Abstract
Public debates about school history curricula meet the interests of public historians and educators in many different ways because they raise questions such as: “What history or whose history do we teach in schools?” “How can we make school history more public?” “How can the school history subject move toward a critical consumption and production of public representations of the historical past?” The withdrawal of the 2018–2019 history curricula in Greece and their replacement in 2021 with the updated history curricula of 2015, added another link in the long chain of educational reform and counter-reform in Greece, and demonstrated, once again, the close relationship between school history and public education policy. Moreover, in the Greek case, the revealing comparison between the withdrawn history curricula and those that replaced them brings to the fore the ways in which public history approaches can significantly contribute to the meaningful engagement of pupils in school history and, more generally, to an open, flexible, learning-centered, and inclusive education.
Study on the regularity of Se(IV) adsorption by bentonite from different regions
Authors: Jiang Qifeng , Liu Weigang , Liao Yuxin , Li Haonan , Li Junhan , Feng Jiahui , Zhang Zimin , Sun Yuzhen , Chen Yuxin , Guo Jiachen , Su Xuebin , Hua Rong 
Published: August 2023

Abstract
Bentonite exhibits obvious geological characteristics in different areas, and its chemical composition varies. To investigate the impact of these variations on the adsorption of Se(IV), the chemical structures and elemental contents of three types of bentonites were characterized using FTIR and XRF. By conducting a series of experiments and fitting the results with the kinetic adsorption model and the isothermal adsorption model, it was discovered that bentonite exhibits diverse adsorption modes for Se(IV). In acidic environments, the adsorption mode primarily involves forming an outer-sphere complex, whereas in neutral and alkaline environments, the primary mode is to form an inner-sphere complex. Zhi-Shin bentonite, which has low alumina content and high iron oxide content, demonstrates poor adsorption effectiveness on Se(IV) at low temperatures (less than 45 °C), but exhibits good adsorption effectiveness at high temperatures (more than 50 °C). Conversely, bentonite with high alumina content and low iron oxide content demonstrates the opposite effect. Furthermore, for bentonite with high iron oxide content, Se(IV) will form more inner-sphere complexes with iron oxide, and the adsorption behavior is not easily affected by changes in ionic strength and pH.
General Randić indices of a graph and its line graph
Authors: Liang Yan , Wu Baoyindureng 
Published: August 2023

Abstract
For a real number

α

\alpha

, the general Randić index of a graph

G

G

, denoted by

R

α

(

G

)

{R}_{\alpha }\left(G)

, is defined as the sum of

(

d

(

u

)

d

(

v

)

)

α

{\left(d\left(u)d\left(v))}^{\alpha }

for all edges

u
v

uv

of

G

G

, where

d

(

u

)

d\left(u)

denotes the degree of a vertex

u

u

in

G

G

. In particular,

R

−

1

2

(

G

)

{R}_{-\tfrac{1}{2}}\left(G)

is the ordinary Randić index, and is simply denoted by

R

(

G

)

R\left(G)

. Let

α

\alpha

be a real number. In this article, we show that

(1)
if

α
≥
0

\alpha \ge 0

,

R

α

(

L

(

G

)

)

≥
2

R

α

(

G

)

{R}_{\alpha }\left(L\left(G))\ge 2{R}_{\alpha }\left(G)

for any graph

G

G

with

δ

(

G

)

≥
3

\delta \left(G)\ge 3

;

(2)
if

α
≥
0

\alpha \ge 0

,

R

α

(

L

(

G

)

)

≥

R

α

(

G

)

{R}_{\alpha }\left(L\left(G))\ge {R}_{\alpha }\left(G)

for any connected graph

G

G

which is not isomorphic to

P

n

{P}_{n}

;

(3)
if

α
<
0

\alpha \lt 0

,

R

α

(

L

(

G

)

)

≥

R

α

(

G

)

{R}_{\alpha }\left(L\left(G))\ge {R}_{\alpha }\left(G)

for any

k

k

-regular graph

G

G

with

k
≥

2

−
2
α

+
1

k\ge {2}^{-2\alpha }+1

;

(4)

R

(

L

(

S

(

G

)

)

)

≥
R

(

S

(

G

)

)

R\left(L\left(S\left(G)))\ge R\left(S\left(G))

for any graph

G

G

with

δ

(

G

)

≥
3

\delta \left(G)\ge 3

, where

S

(

G

)

S\left(G)

is the graph obtained from

G

G

by inserting exactly one vertex into each edge.
Stem cell-derived embryo models: a frontier of human embryology
Authors: Kobayashi Norio , Fu Jianping 
Published: August 2023

Abstract
Studying human development remains difficult due to limited accessibility to human embryonic tissues. Prompted by the availability of human stem cells that share molecular and cellular similarities with embryonic and extraembryonic cells in peri-implantation human embryos, researchers have now successfully developed stem cell-based human embryo models that are promising as experimental tools for studying early human development. In this Perspective, we discuss the current progress in mouse and human stem cell-derived embryo models and highlight their promising applications in advancing the fundamental understanding of mammalian development.
Collapse of a honeycomb sandwich composite in an aircraft radome
Authors: Gao Junfu , Zhou Chunping , Ding Ning , Ma Weijie , Liu Long , Xu Huixia , Hou Nan 
Published: August 2023

Abstract
Honeycomb sandwich composites play an important role in the aviation structural components, especially in aircraft radomes. Due to the multiple production processes, failure of the honeycomb sandwich composite usually occurs. This would affect the working stability of mechanical components made mainly of the honeycomb structural materials. In the present work, collapse failure of the honeycomb sandwich composite in an aircraft radome was investigated. The observation and analysis results show that the failure mode of the honeycomb structure is compression instability failure. There are a lot of pore defects in some local bonding areas of the honeycomb structure, forming a weak bonding area. In the process of curing and pressurization, debonding occurs at the adjacent honeycomb cells near the weak bonding area, forming a cracking band and resulting in the decrease of the stiffness and the instability failure under pressure. The work would provide reference information for the application of honeycomb sandwich composites in mechanical equipment.
Learning flat optics for extended depth of field microscopy imaging
Authors: Atalay Appak Ipek Anil , Sahin Erdem , Guillemot Christine , Caglayan Humeyra 
Published: August 2023

Abstract
Conventional microscopy systems have limited depth of field, which often necessitates depth scanning techniques hindered by light scattering. Various techniques have been developed to address this challenge, but they have limited extended depth of field (EDOF) capabilities. To overcome this challenge, this study proposes an end-to-end optimization framework for building a computational EDOF microscope that combines a 4f microscopy optical setup incorporating learned optics at the Fourier plane and a post-processing deblurring neural network. Utilizing the end-to-end differentiable model, we present a systematic design methodology for computational EDOF microscopy based on the specific visualization requirements of the sample under examination. In particular, we demonstrate that the metasurface optics provides key advantages for extreme EDOF imaging conditions, where the extended DOF range is well beyond what is demonstrated in state of the art, achieving superior EDOF performance.
Asymmetric metasurface photodetectors for single-shot quantitative phase imaging
Authors: Liu Jianing , Wang Hao , Li Yuyu , Tian Lei , Paiella Roberto 
Published: August 2023

Abstract
The visualization of pure phase objects by wavefront sensing has important applications ranging from surface profiling to biomedical microscopy, and generally requires bulky and complicated setups involving optical spatial filtering, interferometry, or structured illumination. Here we introduce a new type of image sensors that are uniquely sensitive to the local direction of light propagation, based on standard photodetectors coated with a specially designed plasmonic metasurface that creates an asymmetric dependence of responsivity on angle of incidence around the surface normal. The metasurface design, fabrication, and angle-sensitive operation are demonstrated using a simple photoconductive detector platform. The measurement results, combined with computational imaging calculations, are then used to show that a standard camera or microscope based on these metasurface pixels can directly visualize phase objects without any additional optical elements, with state-of-the-art minimum detectable phase contrasts below 10 mrad. Furthermore, the combination of sensors with equal and opposite angular response on the same pixel array can be used to perform quantitative phase imaging in a single shot, with a customized reconstruction algorithm which is also developed in this work. By virtue of its system miniaturization and measurement simplicity, the phase imaging approach enabled by these devices is particularly significant for applications involving space-constrained and portable setups (such as point-of-care imaging and endoscopy) and measurements involving freely moving objects.
Impacts and mechanisms of PM2.5 on bone
Authors: Tian Yuqing , Hu Yunpeng , Hou Xiaoli , Tian Faming 
Published: August 2023

Abstract
Osteoporosis is a metabolic bone disease, which is characterized by a decreased bone mass and deterioration of bone microstructure, resulting in increased bone fragility and a higher risk of fracture. The main pathological process of osteoporosis is the dynamic imbalance between bone absorption and bone formation, which can be caused by various factors such as air pollution. Particulate matter (PM)2.5 refers to the fine particles in the atmosphere, which are small in volume and large in specific surface area. These particles are prone to carrying toxic substances and have negative effects on several extrapulmonary organs, including bones. In this review, we present relevant data from studies, which show that PM2.5 is associated with abnormal bone turnover and osteoporosis. PM2.5 may cause or aggravate bone loss by stimulating an inflammatory response, inducing oxidative damage, reducing estrogen efficiency by competitive binding to estrogen receptors, or endocrine disorder mediated by binding with aromatic hydrocarbon receptors, and affecting the synthesis of vitamin D to reduce calcium absorption. The cellular and molecular mechanisms involved in these processes are also summarized in this review.
Hydration and Mechanical Property of the Coral Powder-Fly Ash-Portland Cement Ternary System
Authors: Lu Tao , Fang Jinfu , Yu Zhuqing , Xue Qingzong 
Published: August 2023

Abstract
Many concrete materials are required during ongoing construction in islands and reefs. Using local material is one of the effective methods to solve the shortage of raw materials and save energy. It is proved that coral powder (CP) can be used to replace portland cement (PC) partially and cast concrete, but the excessive use of CP will lead to the loss of strength. In order to ensure the strength of the cement-based materials and utilize more CP, fly ash (FA) is introduced into the whole system in this study, aiming to improve the later strength by the pozzolanic reaction of FA. The hydration behavior and hydration products for the CP-FA-PC ternary system are investigated by using a hydration calorimeter and the X-ray diffraction technique. The mechanical properties of this ternary system with time are evaluated by measuring the compressive strength of PC mortar mixed with CP and FA. The obtained results show that the reaction of CP is a very slow and long-term process. CP reacts with hydrated calcium aluminate more easily than with tricalcium aluminate. The loss of strength of cement mortar made with CP can be mitigated by the addition of FA, especially at a later curing age. At 180 days, the compressive strength of the cement mortar with 15 % CP and 25 % FA can reach 52.5 MPa; thus, 40 % PC is saved, and carbon emission is largely reduced.
¿Y si la química hubiera ganado? Un ejercicio de contrafácticos de la historia de la ciencia
Authors: Maldonado Carlos Eduardo 
Published: August 2023

Este artículo es un ejercicio de contrafácticos. Contra la historia de la ciencia, afirma que la física moderna no triunfó, sino la química. Después de caracterizar el modo de pensar propio de la mecánica clásica, sostiene que ése es negativo, y aporta razones. En contraste, el hecho de que la modernidad y el mundo contemporáneo emergieran a la luz de la química aporta nuevas luces, lenguajes, explicaciones y relaciones. Si la química hubiera triunfado, el mundo sería mucho mejor hoy.
TWO-STEP SYNTHESIS AND FORMATION MECHANISM FOR LACUOS NANO-SIZED AGGLOMERATES
Authors: Li Xin , Li Qiang , Ma Zhenning , Sun Yan 
Published: August 2023

We have developed a two-step synthesis method to obtain pure LaCuOS nano-sized agglomerates using La(NO3)3·6H2O, CuSO4·5H2O and NH3·H2O as the starting materials. The result shows that the precursor can be converted into La2O2SO4, La2(SO4)3 and CuO phases at 800 °C for 2 h in air, which was then converted into a pure LaCuOS phase by a reduction at 800 °C for 5 h in a flowing argon and hydrogen atmosphere. The as prepared LaCuOS nano-aggregates have poor dispersion and a wide size distribution range (50–100 nm).
“They forgot about us”: experiences of the COVID-19 pandemic among people deprived of housing in an urban centre in Ontario, Canada
Authors: Lamarche Larkin , Scallan Eilish , Mak Orianna , Howden Jillian , Bodkin Claire , Nussey Lisa , Wolf Kelly , Ans Jody , Delottinville Danielle , O’Shea Tim , Lennox Robin 
Published: August 2023

Abstract
Objectives
People deprived of housing have been disproportionately affected by the COVID-19 pandemic and the public health mitigation measures implemented in response. Emerging evidence has shown the adverse health outcomes experienced by these communities due to SARS-CoV-2 infection; however, the voices of community members themselves have not been widely amplified in the published literature.

Methods
We conducted an interpretive qualitative study. People deprived of housing were involved in study development, recruitment, and data analysis. People deprived of housing or precariously housed were recruited during street outreach from June to July 2020. Participants completed one-on-one semi-structured interviews that were audio-recorded, transcribed, and analyzed thematically.

Results
Twenty-one participants were interviewed. Central to participants’ experiences of the COVID-19 pandemic were descriptions of access to services, in terms of both changes in service availability and the reality of how accessible existing services were to the community, represented by the theme access. Four other themes were generated from our analysis and include feeling and being unheard, stripped of dignity, I’ve been broken, and strength and survival (with a subtheme, community care).

Conclusion
Future emergency response efforts must meaningfully engage people deprived of housing in planning and decision-making in order to minimize adverse impacts of health emergencies and the associated public health responses. There needs to be more careful consideration of the unintended harmful impacts of public health measures implemented in response to pandemics.
Dolor y espiritualidad. Conceptos presentes en las mujeres artistas como medio de reivindicación
Authors: Mañas García Alejandro , Fayos Bosch Leticia 
Published: August 2023

Esta investigación quiere mostrar a través de una serie de artistas contemporáneas que utilizan como medio de reivindicación procesos creativos donde el concepto de dolor se hace explícito, unas con el fin de alcanzar otras realidades y otras por la misma vivencia. Un proceso donde la espiritualidad se manifiesta como un camino de descubrimiento que les permite alcanzar otras realidades y una rica estética. Artistas que han tenido también como referentes a grandes maestras de la espiritualidad. Producciones que no solo sirven a las artistas para mostrar el sufrimiento, sino como un medio de lucha en esta sociedad para reivindicar los derechos de la mujer. Un hecho que no solo se da por individual, sino de forma colectiva, en ese sentido este artículo muestra cómo diferentes artistas utilizan los mismos conceptos, incluso siendo un medio donde comisarios y agentes artísticos han dejado testimoniado a través de exposiciones.

Hemos querido que el presente estudio en su metodología fuese dúctil, adaptándose a las diferentes situaciones que ha propiciado nuestra investigación en los diversos campos y disciplinas que hemos tenido en cuenta. Texto que se ha trascrito a partir de una metodología de investigación fundamentada en el cruce de diferentes referentes bibliográficos, relacionados con los conceptos tratados. Los que más tarde se han analizado tras la selección de aquellos aspectos que nos sirvan de marco referencial y conceptual. La investigación responde, por un lado, a la especificidad en el ámbito de las Bellas Artes, apoyado en el análisis y la consulta del propio contexto de la práctica artística. Para ello se ha indagado en escritos de especialistas, catálogos de exposiciones, críticas de arte, monografías de artistas, revistas de arte, artículos y, se ha visitado exposiciones y colecciones de arte. Más tarde, se ha procedido a una selección y catalogación de creadoras plásticas y obras significativas para los intereses específicos del tema
Pengembangan Multimedia Interaktif Pada Materi Data Flow Diagram Untuk Mahasiswa Teknik Informatika
Authors: Costa Cecilia Da , Kuswandi Dedi , Wedi Agus 
Published: August 2023

Students have difficulty learning data flow diagram material because of the lack of references and constraints in accessing other reference sources. In addition, students also have difficulty understanding the notations and symbols used in making DFDs. Therefore interactive multimedia aims to produce computer-based learning products, which can be used by students as a source of learning media in making data flow diagrams at the Instituto Superior Cristal. The resulting interactive multimedia product is in the form of an .exe file. so that it is easy for students to use. This development research uses the Lee & Owens 2004 model. This model has five stages, namely, Analysis, Design, Development, Implementation, and Evaluation. The validity test of interactive multimedia products was carried out by media experts and material experts, and gave comments that multimedia was feasible to use. Practicality and attractiveness tests were carried out by informatics students at the Instituto Superior Cristal and gave positive responses in using interactive multimedia in small group and large group trials. Thus the interactive multimedia product on data flow diagram material is declared valid, practical and interesting to be used by students in the learning process at the Instituto Superior Cristal.AbstrakMahasiswa kesulitan dalam pembelajaran Materi data flow diagram karena minimnya referensi dan terkendala dalam mengakses sumber referensi lain . Oleh karena itu Multimedia interaktif bertujuan untuk menghasilkan produk pembelajaran, berbasis komputer yang dapat digunakan oleh mahasiswa sebagai salah satu sumber media pembelajaran dalam pembuatan data flow diagram di Instituto Superior Cristal. Produk multimedia interaktif yang dihasilkan berupa file .exe. sehingga mudah digunakan oleh mahasiswa. Penelitian pengembangan ini menggunakan model Lee & owens 2004. Pada model tersebut memiliki lima tahapan yaitu, Analisis, Desain, Pengembangan, Implementasi, dan Evaluasi. Uji kelayakan produk multimedia interaktif dilakukan oleh ahli media dan ahli materi, dan memberikan tanggapan bahwa multimedia layak untuk digunakan. Uji kepraktisan dan kemenarikan dilakukan oleh mahasiswa informatika Instituto Superior Cristal dan memberikan respon yang positif dalam menggunakan multimedia interaktif. Dengan demikian produk multimedia interaktif pada materi data flow diagram dapat digunakan oleh mahasiswa dalam proses pembelajaran di Instituto Superior Cristal.