Science Factory

Dagster is a modern data orchestrator that emphasises reproducibility, observability, and a strong developer experience (Elementl, 2024b).In parallel, most high-performance computing (HPC) centres continue to rely on Slurm for batch scheduling and resource governance (Yoo et al., 2003).The two ecosystems rarely meet in practice: Dagster projects often target cloud or single-node deployments, while Slurm users maintain bespoke submission scripts with limited reuse or visibility.This paper introduces dagster-slurm, an open-source integration that allows the same Dagster assets to run unchanged across laptops, CI pipelines, containerised Slurm clusters, and Tier-0 supercomputers.The project packages dependencies with Pixi (prefix.dev,2024), submits workloads through Slurm using Dagster Pipes (Elementl, 2024a), and streams logs plus scheduler metrics back to the Dagster UI.The key contribution is a unified compute resource (ComputeResource) that hides SSH transport (including password-only jump hosts and OTP prompts), dependency packaging, and queue configuration while still respecting Slurm's scheduling semantics.The project ships two production-ready execution modes-local for laptop/CI development and slurm for one-jobper-asset submissions-and two stable launchers: Bash for script-based workloads and Ray for multi-node distributed computing.Experimental support for Spark, session-based allocation reuse, and heterogeneous jobs is under active development.

The purpose of this article is to study the application and properties of natural stone used in the construction of the Samara embankment. The architectural design of the four stages of the embankment is analyzed, including descriptions of hardscape, monuments, and fountains. The characteristics of the rocks used for construction and cladding, their properties, and possible deposits are described. A study of the use of natural stone materials in the four stages of the Samara embankment is also conducted.

Artikel ini menganalisis inisiatif Perhutana (Perusahaan Hutan Tanaraya) oleh Jatiwangi art Factory (JaF) sebagai model baru pembiayaan dan tata kelola ekologi di tengah tekanan industrialisasi masif. Artikel ini berfokus pada analisis strategi JaF dalam merespons alih fungsi lahan pertanian produktif menjadi kawasan industri, seperti yang terjadi di sekitar Bandara Kertajati, Majalengka. Dengan pendekatan konstruktivis dan metode studi kasus deskriptif-analitis, penelitian ini menggunakan lensa teori politik ekologi, commons, dan strategi artistik untuk membedah model inovatif Perhutana. Model ini mengakuisisi lahan terancam melalui penjualan kavling mikro (4x4 m²) dengan aturan kepemilikan kolektif (satu orang satu kavling) dan sertifikat material budaya dari tanah liat, lalu mengelolanya sebagai hutan kolektif melalui tata kelola pembentukan Dewan Adat. Temuan yang diharapkan mengungkap efektivitas strategi mimikri logika pasar real estat untuk tujuan menciptakan commons ekologis, serta potensi replikasi model modular ini di wilayah peri-urban lain. Signifikansi penelitian terletak pada kontribusinya terhadap wacana pembiayaan konservasi mandiri yang berdaulat, melampaui ketergantungan pada negara atau mekanisme pasar karbon global, dan mendemokratisasi aksi kolektif untuk ketahanan ekologis.

Formation-Flying Phased Array Antennas synthesize very-high-gain apertures from PicoSat swarms for Direct-To-Cell links. To simulate on-the-ground coverage, end-to-end full-wave simulation becomes exponentially resource-intensive at scale. We present a compact workflow that ingests complex circularly polarized element patterns (RHCP/LHCP), applies sequential rotation and array-factor synthesis, and projects the 3-D beampattern to Earth coverage. The preliminary evaluation at 1.8 GHz shows that the simulator reproduces elevation-cut behavior and error trends, running sub-second for tens of elements and seconds for thousands, enabling rapid design-space exploration.

The purpose of this retrospective case series is to describe real-world clinical experience with DermaBind TL or FM, (HealthTech Wound Care, US), a dehydrated full-thickness placental membrane intended for homologous use as a protective wound covering in wounds of various aetiologies that failed to heal with standard of care (SoC). This retrospective observational, uncontrolled case series collected data from healthcare providers in the US. Eligible cases were patients, ≥18 years of age, with hard-to-heal wounds who received DermaBind TL or FM after having completed a minimum of four weeks of SoC without evidence of wound improvement. Data collected included patient demographics, wound characteristics and wound size. The cases of 27 patients encompassing 36 wounds were included. The average age of patients included was 72.4 years (range: 37-101 years). The majority of wounds were pressure ulcers (63.9%), followed by diabetic foot ulcers (19.4%) and venous leg ulcers (8.3%). Wound onset was, on average, 29 weeks prior to the first graft application with the placental membrane, and the average wound size was 34cm2. Graft applications occurred weekly, with an average duration of treatment of 6.7 weeks. The observed average percentage surface area reduction across the 36 wounds was 69.1% (range: -17.6-100%). No adverse events were reported by the provider across all patient cases. These observations describe the clinical use of DermaBind as a wound covering material consistent with its homologous natural protective role. Larger, prospective studies are warranted to further investigate its clinical use. The authors would like to stress that this non-randomised, retrospective uncontrolled case series was used to describe findings, such as number of grafts applied, observed percentage of surface area reduction and graft wasted, and not to demonstrate efficacy.

Thiophene–phenylene aromatic copolymers bearing a menthyl ring as the optically active substituents were synthesized. Intermolecular π-stacking allows for intense circular dichroism and circularly polarized luminescence. The heat treatment of the polymer in the solvent changes the helicity. Polarons were generated by iodine doping in the solid state and showed an antiferromagnetic behavior at low temperatures. The electrical conductivity of the molecule was found to follow three-dimensional variable range hopping with interchain electron interactions. This study offers insight into the electro-optical magnetic properties of optically active conducting polymers.

Photoexcited statesof tungsten trioxide (WO3) wereobserved using femtosecond high-energy-resolution fluorescence detectionX-ray Absorption Spectra (HERFD-XAS) and resonant X-ray emission spectra(RXES). In the initial state of the photoexcitation (∼100 fs),the W L3 edge XAS shifts to lower energy and the energylevels of the t2g and eg peaks are modulated due to the photoexcited electronsin the conduction band. The electronic state of the photoexcited Watoms is modified by 500 fs. The crystal field splitting betweenthe t2g and eg peaks shrinks by 500 fs, which indicates local structural changesaround the W atoms due to the formation of polarons. HERFD-XAS andRXES provide more details about the early state of the photoexcitedstates of WO3. This work demonstrates that the detaileddynamics of 5d elements in the femtosecond range can be addressedwith HERFD-XAS/RXES.

A peculiar compressional Pc3 magnetic pulsation was observed by the Swarm satellites on the dayside which may have been caused by the Lamb wave generated at the Tonga undersea volcanic eruption on January 15, 2022. The difference between this and other usual compressional Pc3 pulsations observed at low and mid-latitudes is its spectral structure. The power spectral density (PSD) usually peaks at the periods between 20 and 30 sec, but in this event observed on the dayside orbit around the time when the Lamb wave passed under the Swarm orbit, the PSD peaks below 20 sec and is small in the periods longer than 20 sec. It is shown that this is a very rare case, although not the only one, during the period examined, i.e., from December 2013 to April 2022. The PSD has many sharp spectral peaks, but they don't have usual harmonic structure, and the frequencies of the peaks are nearly common with those of other similar events. The Pc3s observed at low-latitude (L

Acacia fiber is a soluble fiber often used as a processing aid in pet foods. The objective of this experiment was to evaluate the fermentation characteristics of acacia fiber, inulin, pectin (positive control), and cellulose (negative control) using an in vitro fermentation system and feline fecal inoculum. Triplicate samples of each fiber were fermented for 0, 6, 12, and 18h, with short-chain fatty acids (SCFA), pH, and microbiota measured at each time point. Blank-corrected data were analyzed using PROC GLIMMIX of SAS, with significance set at P ≤ 0.05. Significant (P < 0.01) fiber × time interactions were observed for pH change, gas and SCFA production, and microbiota populations. Pectin and inulin had greater (P < 0.01) gas production than acacia fiber and cellulose. Inulin had the greatest pH reduction, followed by pectin, both of which had greater pH reductions (P < 0.01) than acacia fiber and cellulose. Acacia fiber had a small reduction in pH, being lower than cellulose after 12h. Total SCFA production, including acetate, propionate, and butyrate, was higher (P < 0.01) in pectin and inulin than acacia fiber and cellulose. However, acacia fiber had greater (P < 0.01) total SCFA, acetate, and propionate production than cellulose after 12h. Bacterial alpha diversity metrics increased (P < 0.01) during acacia fiber fermentation and decreased (P < 0.01) during inulin and pectin fermentation. Bacterial beta diversity shifted over time and showed separate clustering of bacterial communities among the different fiber substrates evaluated. The relative abundances of predominant (% sequences > 1%) bacterial genera were affected by significant fiber × time interactions. Specifically, acacia fiber had a greater (P < 0.01) increase in Bacteroides, Blautia, and Faecalibacterium than other fibers. Inulin had a greater (P < 0.01) increase in Collinsella, Prevotella, Megamonas, Holdemanella, Blautia, and Faecalibacterium, whereas pectin had a greater (P < 0.01) increase in Bifidobacterium, Lactobacillus, Phascolarctobacterium, and Succinivibrio. These results suggest that acacia fiber is moderately fermentable, resulting in low gas and SCFA production, greater bacterial diversity, and microbiota shifts. Although positive responses were observed in vitro, research in live animals is necessary to confirm potential benefits in felines.