bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengaruh Posisi Miring Kiri Dan Pijat Endorphin Terhadap Durasi Kala II Persalinan Di Wilayah Kerja Puskesmas Kerang
Authors: Rianti Sapta , Palimbo Adriana , Kusvitasari Hairiana , Lathifah Nur 
Published: January 2025

Latar Belakang: Partus lama merupakan salah satu penyebab angka kematian ibu dan bayi. Partus lama adalah persalinan yang berlangsung lebih dari 18 jam yang di mulai dari tanda-tanda persalinan. Posisi berbaring miring merupakan posisi yang dapat membantu penurunan kepala janin. posisi sim, miring ke kiri atau ke kanan sesuai dengan anjuran dokter atau bidan. Selain melakukan posisi miring salah satu upaya untuk mempercepat proses kala II adalah dengan endorphin massage. Endorphin massage merupakan sebuah terapi sentuhan/pijatan ringan yang diberikan pada wanita hamil saat menjelang persalinan. Tujuan: Mengetahui tentang pengaruh posisi miring kiri dan pijat endorphine terhadap durasi kala II persalinan di wilayah kerja Puskesmas Kerang. Metode: Penelitian ini dilakukan pada bulan Februari menggunakan metode Quasy Eksperimental dengan desain Two Group Posttest Only Design. Populasi penelitian ini yaitu seluruh ibu bersalin di bulan Februari 2024. Metode pengambilan sampel menggunakan Nonprobability Sampling dengan teknik Purposive Sampling. Uji analisis Independent T test. Hasil: Selisih durasi kelompok posisi miring dengan pijat endhorphine adalah 3,67 menit dengan nilai p value 0,013. Simpulan: Ada pengaruh posisi miring dan pijat endorphin terhadap durasi kala II persalinan di wilayah kerja Puskesmas Kerang sehingga diharapkan bidan mampu memotivasi ibu untuk melakukan posisi miring dan pijat endhorphine pada kala II.
Analisis keamanan jaringan wireless menggunakan metode penetration testing di smk bangun negeri hu’u
Authors: Nurfanis Nurfanis , S.ST., M.Kom Zaenudin , S.ST., M.Kom Muhamad Masjun Efendi 
Published: January 2025

Perkembangan teknologi jaringan saat ini sangat berkebang pesat sehingga memungkinkan banyak orang yang menyalahgunakan teknologi itu sendiri. Contohnya wireless local area network (wlan). Jaringan wireless adalah salah satu teknologi media transmisi nirkabel yang sering digunakan oleh semua orang, penelitian ini menggunakan metode penetration testing yang bertujuan untuk menganalisis keamanan jaringan wireless yang sistem keamanannya menggunakan OPN dan WPA2, dalam menganalisis jaringan wireless menggunakan sistem operasi kali linux yang lebih spesifik dalam hal penetration testing. Hasil dari pengujian ini menunjukkan bahwa keamanan jaringan di SMK Bangun Negeri Hu’u, masih memiliki celah yang dapat memberikan peluang kepada hacker. Dibuktikan dengan dua jenis serangan yang dilakukan keduanya berhasil di keamanan OPN dan WPA2 yaitu serangan cracking the encryption dan attacking the infrastrukture.
The application of deep learning in early enamel demineralization detection
Authors: He Ketai , Zhang Rongxiu , Liang Muchun , Tian Keyue , Luo Kaihui , Chen Ruoshi , Ren Jianpeng , Wang Jiajun , Li Juan 
Published: January 2025

Objective
The study aims to develop a diagnostic model using intraoral photographs to accurately detect and classify early detection of enamel demineralization on tooth surfaces.

Methods
A retrospective analysis was conducted with 208 patients aged 14 to 44. A total of 624 high-quality digital images captured under standardized conditions were used to construct a deep learning model based on the Mask region-based convolutional neural network (Mask R-CNN). The model was trained to automate the detection of enamel demineralization. Its performance was compared to two junior dentists’ diagnostic abilities.

Results
The model achieved an F1-score of 0.856 for detecting demineralized teeth on the validation set, a metric that reflects comprehensive diagnostic performance, demonstrating performance close to that of senior dentists. With the the model’s assistance, the junior dentists’ average F1-scores improved significantly—from 0.713 and 0.689 to 0.897 and 0.949, respectively (p < 0.05). The model accurately segmented tooth surfaces and detected demineralized areas, allowing for precise detection of demineralized areas and monitoring of lesion progression.

Conclusion
Deep learning can accurately segment tooth surfaces and lesion contours, enhancing the precision, accuracy, and efficiency of enamel demineralization diagnosis and area delineation.
Screening of Sesame Entries against Phyllody Disease under Field Conditions
Authors: Madhuri V. , Bharathi D. , Priya Bhagavatha , Chandrika V. 
Published: January 2025

Phyllody is one of the major constraints causing economical yield losses and initially it was considered to be caused by a virus but later resulted it was associated with phytoplasma presence. In the integrated management of phyllody disease of sesame, host plant resistance only plays a key role. Keeping this in view, a total of 137 entries including susceptible check YLM-66 variety (sarada) were screened under field conditions during kharif, 2021 to identify the resistance sources in the cultivars and for further exploitation in resistance breeding programme. Among which, none of the sesame entries were found immune or resistant to the disease. However, 10 entries (UTS-6, UTS-29, UTS-39, UTS-32, UTS-35, RMT-498, RMT-496, RT-430, NIC-10621-B and GT-10 were found moderately resistant with disease incidence ranged from 13.61-19.59 per cent, 52 showed tolerant reaction, 63 showed moderately susceptible reaction, nine found susceptible and two found highly susceptible disease reaction to phyllody disease and per cent disease incidence of 70.50 per cent was recorded in susceptible check, YLM-66 at harvest.
Evaluation of Radiographic Methods for Detecting Left Atrial Enlargement in Dogs with Mitral Valve Disease
Authors: Bodh Deepti , Harkal Prasad , Tyagi S.P. , Kumar Adarsh , Sharma Pradeep , Sharma Deepti 
Published: January 2025

Aim: To evaluate the utility of four radiographic methods for assessing cardiomegaly and left atrial enlargement in dogs with myxomatous mitral valve disease (MMVD)
Study Design: Thirty-one client owned dogs with varying severity of mitral valve disease were subjected to thoracic radiography and echocardiography.
Place and Duration of Study: Department of Veterinary Surgery and Radiology, DGCN College of Veterinary and Animal Sciences, between July 2023 to July 2024
Methodology: Thirty-one dogs with varying MMVD severity underwent thoracic radiography and echocardiography. Vertebral heart size (VHS), vertebral left atrial size (VLAS), radiographic left atrial dimension (RLAD), and left atrial (LA) Width were measured and compared with echocardiographic parameters.
Results: Radiographic indices (VHS, VLAS, RLAD, and LA Width) increased progressively with MMVD stage (B1, B2, and C). RLAD, and LA Width correlated significantly with echocardiographic LA/Ao ratio (P < 0.01). VHS, VLAS, and LA Width were easier to measure than RLAD.
Conclusion: Radiographic VLAS, RLAD, and LA Width are reliable alternatives to echocardiography for identifying left atrial enlargement in MMVD-affected dogs, with VHS offering utility when other measures are unavailable.
Infrared Spectroscopy of Biological Applications: An Overview
Authors: Stuart Barbara H. 
Published: December 2021

Abstract
Infrared spectroscopy has proved to be a powerful tool for the study of biological molecules, including proteins, lipids, carbohydrates, and nucleic acids. This spectroscopic approach enables such molecules to be identified and changes to their chemical structures to be characterized. The application of this technique to biological problems is continually expanding, particularly with the advent of increasingly sophisticated sampling techniques associated with Fourier transform infrared (FTIR) spectroscopy.
Biological systems, including animal and plant tissues, microbial cells, clinical samples, and food, have all been successfully studied using infrared spectroscopy. In particular, recent decades have seen a rapid expansion in the number of studies of more complex systems, such as diseased tissues. This article reviews the sampling methods available for biological molecules. The interpretation of infrared data, both qualitatively and quantitatively, for such systems is covered. The specific information to be obtained from the main types of biological molecules is detailed, and the application of biological infrared spectroscopy is reviewed.
Noble Metals, Analytical Chemistry of
Authors: Balcerzak Maria 
Published: December 2021

Abstract
Attractive physical, chemical, and biological properties of the noble (precious) metals – ruthenium, rhodium, palladium, osmium, iridium, and platinum (so‐called platinum group metals (PGM)) and gold – result in their wide applications. The main demands for the metals are from autocatalysts; chemical, electrical, and electronic industries; jewelry and investment. Medical applications of some noble metal compounds, in particular those exhibiting anticancer activity, are of great importance.
The large variety and complexity of the examined (geological, environmental, industrial, and biological) materials, great chemical similarities and low stability of the noble metal species in solutions, and wide concentration (from sub‐ppb to >99.99%) ranges to be determined make the accurate determination of the metals a difficult analytical problem. Identification and quantification of various chemical forms (elemental, complex) of the metals in the examined samples require methods capable of separation of the analytes from the interfering matrix components and their detection. The choice of a suitable sample preparation procedure and its successful coupling with the detection technique of required selectivity and sensitivity are fundamental factors limiting the quality of the results. Analytical methods applicable in the analysis of the noble metal samples are presented in the article.
Laser‐Induced Breakdown Spectroscopy
Authors: Cremers David A. , Multari Rosalie A. , Knight Andrew K. 
Published: December 2021

AbstractLaser‐induced breakdown spectroscopy (LIBS) is a method of atomic emission spectroscopy (AES) based on a laser‐generated plasma. Powerful laser pulses are focused on a sample to atomize a small mass of material resulting in the formation of a microplasma containing free atoms electronically excited to emit light. The plasma light is spectrally resolved and detected to determine the elemental sample composition based on the unique emission spectrum of each element. Because of the simplicity of the method, it is suited for analyses that cannot be carried out using conventional techniques of AES such as measurements that must be conducted outside of an analytical laboratory. A particular advantage of LIBS is the ability to analyze gases, liquids, and solids in situ, directly, with little or no sample preparation allowing rapid measurement capability. Although LIBS offers sensitive detection for many elements, it is not an ultrasensitive detection technique and, under field conditions, the method does not typically provide the high accuracy and precision offered by laboratory‐based AES methods. Although basically an element detection method, complex targets (e.g. explosives, pathogens, and chemical agents) can be identified through analysis of the LIBS spectrum using advanced mathematical methods (e.g. multivariate analysis, neural networks).
Effects of the 5‐HT1A receptor agonist 8‐OH‐DPAT on aggressive behavior in juvenile pufferfish, Takifugu rubripes
Authors: Hu Yu , Li Haixia , Zhou Cheng , Liu Ying , Ma Zhen 
Published: December 2021

AbstractSevere aggressive behavior of juvenile pufferfish affects economic efficiency and fish welfare in aquaculture. 5‐HT plays an important role in regulating the aggressive behavior of fish in aquaculture environment. This study examined the effects of different concentrations (0, 0.25, 0.5, 1 mg/kg) of 8‐OH‐DPAT, a selective 5‐HT1A receptor agonist, on the aggressive behavior of juvenile pufferfish. Forty‐five minutes after drug injection, the aggressive behavior of juvenile fish was recorded for 20 min, including the latency to the first attack and the frequency of aggressive behaviors. The results showed no significant differences in the latency to the first attack of juvenile fish among treatment groups. During the first 10 min of the observation period, there was no significant difference in the total aggressive acts and locomotor activity among treatment groups. Total aggressive acts and locomotor activity were the least in the 1 mg/kg 8‐OH‐DPAT‐treated during the 20 min observation period. Both aggressive behavior and locomotor activity were negatively correlated with 8‐OH‐DPAT treatment overall, respectively. The above results suggested that the serotonergic system activation had suppressive effects on aggressive behavior and locomotor activity in juvenile pufferfish.
Preview repetitive control for linear discrete‐time periodic systems
Authors: Li Li , Lu Yanrong 
Published: December 2021

AbstractA discrete‐time preview repetitive control (PRC) scheme was proposed for linear discrete‐time periodic systems that were subjected to previewable reference signals. First, the state augmentation technique was used to derive an augmented system that included future information on previewable signals. Second, a two‐dimensional (2D) model was developed for the augmented system so that the control and leaning actions can be adjusted preferentially by using control gains. Sufficient conditions that guarantee the closed‐loop stability of the augmented 2D systems were derived, and the design of a periodic controller with preview action and repetitive control was proposed using the linear matrix inequality approach. Finally, the effectiveness of the proposed PRC was established by using two numerical simulation examples.
Room‐Temperature Crystallization of Ultralong (≈3.5 mm) CsCu2I3 Microbelt to Suppress Carrier Recombination for High‐Performance UV Heterojunction Photodetector
Authors: Li Ziqing , Zuo Chaolei , Liu Xinya , Ma Zhuangzhuang , Shi Zhifeng , Fang Xiaosheng 
Published: December 2021

AbstractLead‐free ternary copper iodide perovskite analogues demonstrate great potential in photodetector, due to their nontoxity and excellent photophysical properties. However, the fast carrier recombination limits the photoelectric conversion efficiency. Herein, a room‐temperature growth strategy with the selected raw ratio is adopted to enhance carrier dynamics. The optimized‐grown CsCu2I3 single crystal exhibits longer carrier lifetime of 157 ns, and its switch ratio and response time are enhanced by 20 000% and 600% compared with those of stoichiometric‐grown single crystal, respectively. Furthermore, space‐confined method is introduced to prepare ultralong single‐crystalline CsCu2I3 microbelt, with the aspect ratio up to 600. The sensitivity and self‐powered performance of the UV photodetector are improved through constructing heterojunction with p‐CuI and asymmetric electrodes. The enhanced performance is ascribed to superior type‐II band alignment between CsCu2I3 and CuI, which effectively promotes the separation of photogenerated carriers. This work not only provides an efficient way to boost the photoresponse in low‐dimensional metal halide perovskite analogue, but also displays 1D anisotropic growth for potential application in large‐area vapor‐assisted patterned devices.
Discovery of Lead‐Free Perovskites for High‐Performance Solar Cells via Machine Learning: Ultrabroadband Absorption, Low Radiative Combination, and Enhanced Thermal Conductivities
Authors: Cai Xia , Zhang Yiming , Shi Zejiao , Chen Ying , Xia Yujie , Yu Anran , Xu Yuanfeng , Xie Fengxian , Shao Hezhu , Zhu Heyuan , Fu Desheng , Zhan Yiqiang , Zhang Hao 
Published: December 2021

AbstractExploring lead‐free candidates and improving efficiency and stability remain the obstacle of hybrid organic‐inorganic perovskite‐based devices commercialization. Traditional trial‐and‐error methods seriously restrict the discovery especially for large search space, complex crystal structure and multi‐objective properties. Here, the authors propose a multi‐step and multi‐stage screening scheme to accelerate the discovery of hybrid organic‐inorganic perovskites A2BB′X6 from a large number of candidates through combining machine learning with high‐throughput calculations for pursuing excellent efficiency and thermal stability in solar cells. Followed by a series of screenings, the structure‐property relationships mapping A2BB′X6 properties are built and the predictions are close to reported experimental results. Successfully, four experimental‐feasibly candidates with good stability, high Debye temperature and suitable band gap are screened out and further verified by density‐functional theory calculations, in which the predicted efficiency for three lead‐free candidates ((CH3NH3)2AgGaBr6, (CH3NH3)2AgInBr6 and (C2NH6)2AgInBr6) achieves 20.6%, 19.9% and 27.6% due to ultrabroadband absorption region ranging from UVC to IRC with excitonic radiative combination rates as low as 10 ps, large or intermediate polarons form with properties similar to CH3NH3PbI3 and the calculated thermal conductivities are 5.04, 4.39 and 5.16 Wm−1K−1, respectively, with Debye temperatures larger than 500 K, beneficial for suppression of both nonradiative combination and heat‐induced degradation.
Branched Poly(Aryl Piperidinium) Membranes for Anion‐Exchange Membrane Fuel Cells
Authors: Wu Xingyu , Chen Nanjun , Klok Harm‐Anton , Lee Young Moo , Hu Xile 
Published: December 2021

AbstractAnion‐exchange membrane fuel cells (AEMFCs) are a promising, next‐generation fuel cell technology. AEMFCs require highly conductive and robust anion‐exchange membranes (AEMs), which are challenging to develop due to the tradeoff between conductivity and water uptake. Here we report a method to prepare high‐molecular‐weight branched poly(aryl piperidinium) AEMs. We show that branching reduces water uptake, leading to improved dimensional stability. The optimized membrane, b‐PTP‐2.5, exhibits simultaneously high OH− conductivity (>145 mS cm−1 at 80 °C), high mechanical strength and dimensional stability, good processability, and excellent alkaline stability (>1500 h) in 1 M KOH at 80 °C. AEMFCs based on b‐PTP‐2.5 reached peak power densities of 2.3 W cm−2 in H2−O2 and 1.3 W cm−2 in H2‐air at 80 °C. The AEMFCs can run stably under a constant current of 0.2 A cm−2 over 500 h, during which the b‐PTP‐2.5 membrane remains stable.
Copper‐Catalyzed Asymmetric Diyne Cyclization via [1,2]‐Stevens‐Type Rearrangement for the Synthesis of Chiral Chromeno[3,4‐c]pyrroles
Authors: Hong Feng‐Lin , Shi Chong‐Yang , Hong Pan , Zhai Tong‐Yi , Zhu Xin‐Qi , Lu Xin , Ye Long‐Wu 
Published: December 2021

AbstractHere, we report a copper‐catalyzed asymmetric cascade cyclization/[1,2]‐Stevens‐type rearrangement via a non‐diazo approach, leading to the practical and atom‐economic assembly of various valuable chiral chromeno[3,4‐c]pyrroles bearing a quaternary carbon stereocenter in generally moderate to good yields with wide substrate scope and excellent enantioselectivities (up to 99 % ee). Importantly, this protocol not only represents the first example of catalytic asymmetric [1,2]‐Stevens‐type rearrangement based on alkynes but also constitutes the first asymmetric formal carbene insertion into the Si−O bond.
Expeditious and Efficient ortho‐Selective Trifluoromethane‐sulfonylation of Arylhydroxylamines
Authors: Liu Yue , Bai Songlin , Du Yuanbo , Qi Xiangbing , Gao Hongyin 
Published: December 2021

AbstractA metal‐ and oxidant‐free, practical and efficient method for the synthesis of highly versatile and synthetically useful ortho‐trifluoromethanesulfonylated anilines from arylhydroxylamines and trifluoromethanesulfinic chloride was developed. This rapid transformation proceeded smoothly with good yields and excellent ortho‐selectivity in the absence of any metals or ligands. Mechanistically, the reaction comprised a noncanonical O‐trifluoromethanesulfinylation of the arylhydroxylamine, and the subsequent [2,3]‐sigmatropic rearrangement to afford ortho‐trifluoromethanesulfonylated aniline derivatives. The practical application of this reaction was demonstrated by further conversion into a series of functional molecules under different reaction conditions.
Glycan‐Selective MALDI In‐Source Decay Analysis of Intact Glycoproteins
Authors: Urakami Shogo , Hinou Hiroshi 
Published: December 2021

AbstractA simple matrix‐assisted laser desorption/ionization‐time‐of‐flight (MALDI‐TOF) mass spectrometry (MS) approach has been developed to analyze the structural pattern of glycan on glycoproteins without any digestive or modification pretreatment. For a 7 pmol sample of intact glycoprotein, RNase B, a solid ionic matrix DHB‐aniline‐sodium enabled a regioselective in‐source decay (ISD) and glycan‐selective ionization as a sodium adduct ion, [M+Na]+. This matrix significantly reduced the formation of peptide‐fragment‐derived ions, and a high‐mannose‐type glycan pattern was observed. This ISD product ion was formed by selective cleavage of the reducing end of the glycan by 0,2A or 2,4A type cross‐ring cleavage. Pseudo‐MS3‐type post‐source decay (PSD) analysis of an A type ion indicated the regioselectivity of the ISD fragmentation and the glycan sequence. Combining ISD glycomics with conventional ISD proteomics will accelerate quality control for glycoprotein drugs and biomarker discovery.
Experimental study and modeling of hindered one dimensional settling of spherical trifluroethyl methacrylate based polymer particles
Authors: Reghu Aravind , Butcher Timothy , Lin Jui‐Ming , Russell James , Hammond Jeremy 
Published: December 2021

AbstractDetermining the settling behavior of trifluroethyl methacrylate based spherical polymer particles is important in identifying its efficacy as quality control materials in flow cytometry‐based hematology instruments. Settling properties of these polymer particles like settling rate, critical height of the sediment and resuspension time interval changes with particle size, concentration and sample volume. In this study, one dimensional settling of monodispersed polymer spherical particles in water was performed using a Turbiscan Lab spectrophotometer. An empirical settling model based on Richardson and Zaki's analysis for hindered settling was used to determine the different settling properties associated with these polymer particle suspensions. The different settling properties were also determined in terms of particle size, concentration, and sample volume. In summary, the time interval where an external force is applied to effectively resuspend the particles is shorter for larger particles and longer for larger sample volumes and concentrations.