Miracle-dz/UniFAR-FTUs huggingface dataset:
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—We present a novel comprehensive theory for the pump-to-probe interactions caused by the stimulated Raman scattering (SRS) in glass optical ﬁbers. The developed theory applies to both the Raman gain with the un-depleted pump assumption and to the maximum loss induced by the Raman cross-talk (RXT loss). The latter is an effect that is the limiting propagation impairment in passive optical networks (PON). The main novelty of the paper is a rigorous mathematical analysis describing the interaction of SRS with the polarization evolution due to polarization mode dispersion (PMD). The Raman gain (or the RXT loss) is modeled as a random process for which a comprehensive theory is developed, giving for the ﬁrst time to our best knowledge, an exact closed form expression for the mean and variance of the gain (or depletion) and a computationally efﬁcient algorithm to numerically derive the gain probability density function. The developed theory is validated by the comparison with Monte Carlo analyses based on the wavelplate model for the optical ﬁber. The validation showed excellent agreement conﬁrming the validity of the developed theory. As an example of application, we used our theoretical results to analyze next generation PON (NG-PON2) architectures, conﬁrm-ing that, in this scenario, RXT loss may be a limiting propagation effect.
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Within digital virtual space, secure and efﬁcient user authentication and identiﬁcation are essential to prevent identity theft and unauthorized access to sensitive information and services. The eIDAS network implementing the European Union (EU) Regulation 910/2014 links the electronic identity (eID) systems of EU countries to allow citizens’ access by authenticating with government eIDs. At authentication time, the eIDAS nodes transfer core personal attributes (i.e., name, surname, date of birth, and an identiﬁer) to the service providers (SPs). Since long-term applications require more personal or domain-speciﬁc data to provide the service or to perform identity matching, the SPs must obtain such data in an alternative way, with additional costs and risks. Herein, we extend the eIDAS network to retrieve and transfer additional person and domain-speciﬁc attributes besides the core ones. This process introduces technical, usability, and privacy issues that we analyze. We exploit a logical AP Connector between the eIDAS node and the entities providing additional attributes. We implemented two AP Connectors, named AP-Proxy and AP-OAuth2, integrated with the Italian pre-production eIDAS node to get additional attributes from the Politecnico di Torino university backend. In an experimental campaign, 30 students have accessed academic services at three foreign universities with recognized Italian eIDs, and transferred additional attributes over the eIDAS network. Despite some usability and privacy concerns encountered, the user experience was positive.
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Modern iterative channel code decoder architectures have tight constrains on the throughput but require ﬂexibility to support diﬀerent modes and standards. Unfortunately, ﬂexibility often comes at the expense of increasing the number of clock cycles required to complete the decoding of a data-frame, thus reducing the sustained throughput. The Network-on-Chip (NoC) paradigm is an interesting option to achieve ﬂexibility, but several design choices, including the topology and the routing algorithm, can aﬀect the decoder throughput. In this work logarithmic diameter topologies, in particular generalized de-Bruijn and Kautz topologies, are addressed as possible solutions to achieve both ﬂexible and high throughput architectures for iterative channel code decoding. In particular, this work shows that the optimal shortest-path routing algorithm for these topologies, that is still available in the open literature, can be eﬃciently implemented resorting to a very simple circuit. Experimental results show that the proposed architecture features a reduction of about 14% and 10% for area and power consumption respectively, with respect to a previous shortest-path routing-table-based design.
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Advanced structural materials for high-temperature applications are often required in aerospace and automotive fields. Gamma titanium aluminides, intermetallic alloys that contain less than 60 wt. % of Ti, around 30 – 35 wt. % of aluminum, and other alloy elements, can be used as an alternative to more traditional materials for thermally and mechanically stressed components in aerospace and automotive engines, since they show an attractive combination of favorable strength-to-weight ratio, refractoriness, oxidation resistance, high elastic modulus, and strength retention at elevated temperatures, together with good creep resistance properties. Unfortunately such properties, along with high hardness and brittleness at room temperature, surface damage, and short and unpredictable tool life, undermine their machinability, so that gamma-TiAl are regarded as difficult to cut materials. A deeper knowledge of their machinability is therefore still required. In this context the paper presents the results of an experimental campaign aimed at investigating the machinability of a gamma titanium aluminide, of aeronautic interest, fabricated via electron beam melting and then thermally treated. Milling experiments have been conducted with varying cutting speed, feed, and lubrication conditions (dry, wet, and minimum quantity lubrication). The results are presented in terms of correlation between cutting parameters and lubrication condition with tool wear, surface hardness and roughness, and chip morphology. Tool life, surface roughness, and chirp morphology showed dependence on the cutting parameters. Lubrication conditions were observed to heavily affect tool wear, and minimum quantity lubrication was shown to be by far the method that allows to extend tool life.
Testing a land model in ecosystem functional space via a comparison of observed and modeled ecosystem flux responses to precipitation regimes and associated stresses in a Central U.S. forest

Testing complex land surface models has often proceeded by asking the question: does the model prediction agree with the observation? Such an approach has yet led to high‐performance terrestrial models that meet the challenges of climate and ecological studies. Here we test the Community Land Model (CLM) by asking the question: does the model behave like an ecosystem? We pursue its answer by testing CLM in the ecosystem functional space (EFS) at the Missouri Ozark AmeriFlux (MOFLUX) forest site in the Central U.S., focusing on carbon and water flux responses to precipitation regimes and associated stresses. In the observed EFS, precipitation regimes and associated water and heat stresses controlled seasonal and interannual variations of net ecosystem exchange (NEE) of CO2 and evapotranspiration in this deciduous forest ecosystem. Such controls were exerted more strongly by precipitation variability than by the total precipitation amount per se. A few simply constructed climate variability indices captured these controls, suggesting a high degree of potential predictability. While the interannual fluctuation in NEE was large, a net carbon sink was maintained even during an extreme drought year. Although CLM predicted seasonal and interanual variations in evapotranspiration reasonably well, its predictions of net carbon uptake were too small across the observed range of climate variability. Also, the model systematically underestimated the sensitivities of NEE and evapotranspiration to climate variability and overestimated the coupling strength between carbon and water fluxes. We suspect that the modeled and observed trajectories of ecosystem fluxes did not overlap in the EFS and the model did not behave like the ecosystem it attempted to simulate. A definitive conclusion will require comprehensive parameter and structural sensitivity tests in a rigorous mathematical framework. We suggest that future model improvements should focus on better representation and parameterization of process responses to environmental stresses and on more complete and robust representations of carbon‐specific processes so that adequate responses to climate variability and a proper degree of coupling between carbon and water exchanges are captured.
Syntactic Errors in Older Adults with Depression

Background and Objectives: This study investigated the differences in syntactic errors in older individuals with and without major depressive disorder and cognitive function disparities between groups. We also explored the correlation between syntax scores and depression severity. Materials and Methods: Forty-four participants, assessed for dementia with the Mini-Cog, completed the 15-item Geriatric Depression Scale (TGDS-15) and specific language tests. Following a single-anonymized procedure, clinical psychologists rated the tests and syntax scores. Results: The results showed that the depressive disorders group had lower syntax scores than the non-depressed group, primarily on specific subtests. Additionally, cognitive test scores were generally lower among the depressed group. A significant relationship between depression severity and syntax scores was observed (r = −0.426, 95% CI = −0.639, −0.143). Conclusions: In conclusion, major depressive disorder is associated with reduced syntactic abilities, particularly in specific tests. However, the relatively modest sample size limited the sensitivity of this association. This study also considered the potential influence of cultural factors. Unique linguistic characteristics in the study’s context were also addressed and considered as potential contributors to the observed findings.
Influence of diatom microfossils on sediment shear strength and slope stability

Diatom microfossils have been detected in many natural marine sediment deposits around the globe and are held responsible for the disobedience to well‐established geotechnical relationships between index‐properties and shear strength. We revisit the static shear strength and present the first cyclic undrained shear strength experiments on diatom microfossil—clayey‐silt mixtures to study the role of diatoms on submarine slope stability. It is attested that the angle of internal friction (Φ) increases with diatom content, however, we provide evidence for a significant overestimation of Φ in previous studies. Based on direct shear tests at varying normal stresses ≤ 600 kPa we find Φ = 32° in contrast to 43° in pure diatom. Similarly, to static shear strength, cyclic shear strength increases with diatom content, however, in contrast to static shear strength the most drastic increase does not occur from 0% to 25% diatoms but from 75% to 100%. Interestingly, diatomaceous sediments tend to fail by liquefaction although well‐established relations between index properties and liquefaction susceptibility predict the opposite. Liquefaction failure is observed solely in samples containing ≥ 50% diatoms whereas samples with lower diatom content fail by cyclic softening. We conclude diatom microfossils in marine sediments significantly contribute to an increased slope stability under static and cyclic loading conditions since diatoms lead to higher resistance independently of the loading mode. The strength increase is interpreted as a result of particle interlocking and surface roughness, which is very efficient given the highly variable habitus of diatom species.
Exploring Sleep in Caregivers of Children with Autism Spectrum Disorder (ASD) and the Relationship to Health-Related Quality of Life (HRQoL) and Family Quality of Life (FQoL)

Background and Objectives: To investigate (1) the prevalence of sleep disorder symptoms in caregivers of children with autism spectrum disorder (ASD) and (2) the relationships between caregiver sleep problems and their health-related quality of life and family quality of life. Materials and Methods: Descriptive cross-sectional study of caregivers (N = 62) of children aged 6 to 11 years old diagnosed with ASD and receiving care at a regional autism research and resource center. Results: Participants completed the Sleep Habits Questionnaire (SHQ), the Medical Outcomes Study (MOS) SF-12, and the Beach Center Family Quality of Life Scale (FQoL). Caregivers with longer sleep duration reported better mental health and better family quality of life. Caregivers who reported insomnia symptoms, non-restorative sleep, and insufficient sleep were more likely to report poorer mental health than caregivers who did not report these sleep disorder symptoms. Caregivers with obstructive sleep apnea and restless legs syndrome experienced worse physical quality of life. Conclusions: The physical and mental health of the primary caregiver is essential to the support of the child with ASD and to the functioning of the family. The study findings point to the importance of future research and interventions to enhance sleep health in order to improve quality of life for caregivers of children with ASD.
Fissistigma oldhamii (Hemsl.) Merr.: Ethnomedicinal, Phytochemistry, and Pharmacological Aspects

The species Fissistigma oldhamii (Hemsl.) Merr. (Annonaceae) has long been used as a traditional herbal medicine in China to treat diverse human diseases. Decoctions from the roots of the plant (Guā Fù Mù) are used to treat body pain and inflammatory pathologies, such as rheumatic syndromes, sciatica, and osteoarthritis. The phytochemical content of the plant and the associated pharmacological activities have been analyzed. Seventy natural products were identified in the different parts of the plants, namely, the roots, stems, leaves, fruits, and seeds. The compounds comprise many tri- and tetracyclic alkaloids (aporphine-type), anthraquinones, terpenoids, flavonoids, and others. The pharmacological properties of these molecules were analyzed to point out the anti-inflammatory, antioxidant, anticancer, and/or antimicrobial effects, together with the underlying modulated pathways and molecular targets in some cases. The panel of phytoconstituents present in F. oldhamii extracts is large, with the majority of bioactive products identified in the roots and stems. Multiple molecules can contribute to the anti-inflammatory properties of the extracts. Network pharmacology analyses of the phytoconstituents are needed to better delineate the effective components and their targets.
Lead-Free Piezoelectric Transducers

Research activities on lead-free piezoelectric materials have been ongoing for over 20 years. Generally, the applicability of the main material families is less universal than that of lead-based compositions such as lead zirconate titanate, but in some cases, the corresponding applications have already been identified. Due to the extensive research, it is now possible to manufacture demonstrators and prototypes for different applications and the authors propose in this article to take stock of these advances. For this, we have chosen to first recall briefly the main new material systems using a simplistic “soft” and “hard” classification for approaching the various resonant transducer applications. Medical imaging applications that represent one of the most important fields are presented in a second step together with other low-power transducers. Then, a variety of applications are merged under the heading of high-power transducers. In addition, we mention two points that are important to consider when manufacturing at a larger scale. For the design of transducers, complete datasets must be available, especially if modeling tools are used. Finally, the commercialization of these lead-free materials imposes essential secondary requirements in terms of availability, reproducibility, sample size, and so on.
A Place-Based Agriculture Development Framework

This project develops a theoretical framework that enables consideration of agriculture's broader contributions to place-based regional development. The Place-based Agriculture Development Framework (PADF) developed by the project combines and integrates: - agriculture's traditional contributions through food and fibre production marketed as bulk commodities (agri-industrial model) - an emerging emphasis on the management of ecosystems services and amenity within the production system (post-productivist model) - agriculture's broader socioeconomic contributions to regional diversification, value adding and niche marketing (rural development model) The framework aims to support the development of new regional visions for Australian agriculture, founded on competitive advantages that can be better maximised at the regional scale.
Shale Gas Formation and Occurrence in China: An Overview of the Current Status and Future Potential

Shale gas is one of the most promising unconventional resources both in China and abroad. It is known as a form of self‐contained source‐reservoir system with large and continuous dimensions. Through years of considerable exploration efforts, China has identified three large shale gas fields in the Fuling, Changning and Weiyuan areas of the Sichuan Basin, and has announced more than 540 billion m3 of proven shale gas reserves in marine shale systems. The geological theories for shale gas development have progressed rapidly in China as well. For example, the new depositional patterns have been introduced for deciphering the paleogeography and sedimentary systems of the Wufeng shale and Longmaxi shale in the Sichuan Basin. The shale gas storage mechanism has been widely accepted as differing from conventional natural gas in that it is adsorbed on organic matter or a mineral surface or occurs as free gas trapped in pores and fractures of the shale. Significant advances in the techniques of microstructural characterization have provided new insights on how gas molecules are stored in micro‐and nano‐scale porous shales. Furthermore, newly‐developed concepts and practices in the petroleum industry, such as hydraulic fracturing, microseismic monitoring and multiwell horizontal drilling, have made the production of this unevenly distributed but promising unconventional natural gas a reality. China has 10–36 trillion m3 of promising shale gas among the world's whole predicted technically recoverable reserves of 206.6 trillion m3. China is on the way to achieving its goal of an annual yield of 30–50 billion m3 by launching more trials within shale gas projects.
Mechanistic or Relational Worldview for Talent Identification Research in Sport Science? Both—But With a Preference!

This paper situates talent identification research in sport science within the broader context of developmental science, offering a conceptual framework informed by two (meta-)theoretical worldviews: the Cartesian-split-mechanistic and processual-relational worldviews. Although these worldviews are not explicitly named in the field of talent identification research, we demonstrate their implicit adoption through theoretical and methodological discourse. After comparing applications, benefits, and limitations of each worldview, we briefly discuss whether their bodies of knowledge are incompatible, competitive, or complementary. We suggest each worldview provides complementary insights with a penchant for generating nomothetic and group-specific and type-specific and idiographic knowledge, respectively.
Circulating mutant dna to assess tumor dynamics

PROBLEM TO BE SOLVED: To provide a technique for quantifying circulating tumor DNA (ctDNA) which is a somatic mutation with high sensitivity from a cancer patient's living body sample, and to provide diagnosis, prognosis diagnosis, a therapeutic agent, and a technique for monitoring of cancer based on it.SOLUTION: In a test sample of blood or stool of a cancer patient, the copy number of DNA fragments by a gene mutation is measured, and if the mutation is present in tumor tissue of the cancer patients but not in normal tissue of the patient, the copy number is an index of the tumor burden in the patient.SELECTED DRAWING: None
Mapping Library Users’ Loyalty through LibQUAL +: Mediating Role of Users’ Satisfaction

Abstract The purpose of this study was to investigate the gap between library users’ expected and perceived library services and to examine the role of library services in developing user satisfaction and loyalty. A quantitative research design using a questionnaire was used to investigate the research objectives. Undergraduate students were selected as the population from the Information Technology University. The questionnaire was adopted from previous literature. It was pilot tested with 50 undergraduate students and found reliable. Data was collected from 304 respondents and were analyzed using SPSS (v.20) software. The study found that library users expected a high level of service in three categories, i.e., Affect of Service, Information Control, and Library as a Place, as all mean scores were higher than 7 when rated against a scale from 1 to 9. The participants reported that they were likely to consult the library and recommend it to others. The structural equation model confirmed that better services will increase users’ satisfaction with the library resources and services and will lead to winning users’ loyalty. The findings from the study provided useful insight into the determinants of user satisfaction and loyalty and could be useful for other academic libraries seeking ways to increase user loyalty and user satisfaction with library resources and services.
Analytical Determination of Irrotational Flow Profiles in Open-Channel Transitions

Transitional free surface flow profiles with a critical point occur with weak vorticity and viscosity effects and thus can be modeled with an irrotational flow approach. Important examples in hydraulic engineering include flow over low obstacles, transition structures in canals, and flow over high spillways. While solving Laplace’s equation is relatively simple, the determination of the unknown free surface and energy head of the flow is challenging. Both hydraulic quantities need to be iterated before solving the Laplace equation. Former models iterated the energy head on a trial-and-error basis, assuming that the linked free surface profile is smooth, i.e., free of waves. The iteration of the free surface for a given head is frequently accomplished using the Newton–Rapshon method, which is difficult for the challenging case of spillway flow, giving no solution in some cases. An alternative method of computing irrotational flow profiles in transitional flows involving a critical point is proposed in this work. The model contains three elements: mapping of Laplace’s equation to directly track the streamlines, determination of the critical point and unknown energy head using a critical flow condition for irrotational flows, and determination of the water surface position using an exact analytical solution. The proposed model is favorably compared with experimental data from different sources and CFD results, indicating a reasonable agreement.