bluuebunny/crossref_metadata_2025_split huggingface dataset:
PEMBUATAN ASSESSMENT UNTUK IDENTIFIKASI DELAPAN PEMBOROSAN DI BIDANG INDUSTRI KONSTRUKSI
Authors: Samudaya Samudaya , Wahyudi Didik , Budiman Januar 
Published: March 2023

Industri konstruksi telah mendapat banyak kritikan karena performanya yang buruk, kondisi di Indonesia sendiri, pemborosan yang terjadi di perusahaan konstruksi adalah sekitar 57% dan hanya 10% dari seluruh kegiatan yang memberikan nilai tambah. Performa buruk ini salah satunya disebabkan oleh banyaknya pemborosan yang terus terjadi.Untuk dapat mengurangi pemborosan yang terjadi, maka sebelumnya harus dilakukan identifikasi terhadap pemborosan-pemborosan tersebut. Konsep pemborosan yang terdiri atas transportasi, persediaan (inventory), pergerakan (motion), penundaan (waiting), produksi berlebih (over production), proses berlebih (over processing), cacat produksi (defects) dan pemborosan keahlian (Skill misused). Penelitian ini berfokus pada pembuatan sebuah alat bantu untuk melakukan identifikasi terhadap pemborosan-pemborosan yang terjadi di lapangan, khususnya yang terjadi di wilayah Surabaya dan sekitarnya. Setelah pemborosan yang terjadi diidentifikasi, berikutnya akan dilakukan suatu penilaian.Proses yang paling sederhana adalah dengan melakukan Self Assessment atau penilaian sendiri. Dalam penelitian ini pendekatan dilakukan menggunakan matrix chart karena implementasinya yang mudah dan tidak memerlukan waktu panjang. Hasil dari penelitian ini berupa tabel yang dapat diisi sendiri oleh responden.
Pre‐Activation of CO2 at Cobalt Phthalocyanine‐Mg(OH)2 Interface for Enhanced Turnover Rate
Authors: Lyu Fenglei , Ma Bingyun , Xie Xulan , Song Daqi , Lian Yuebin , Yang Hao , Hua Wei , Sun Hao , Zhong Jun , Deng Zhao , Cheng Tao , Peng Yang 
Published: March 2023

AbstractCobalt phthalocyanine (CoPc) anchored on heterogeneous scaffold has drawn great attention as promising electrocatalyst for carbon dioxide reduction reaction (CO2RR), but the molecule/substrate interaction is still pending for clarification and optimization to maximize the reaction kinetics. Herein, a CO2RR catalyst is fabricated by affixing CoPc onto the Mg(OH)2 substrate primed with conductive carbon, demonstrating an ultra‐low overpotential of 0.31 ± 0.03 V at 100 mA cm−2 and high faradaic efficiency of >95% at a wide current density range for CO production, as well as a heavy‐duty operation at 100 mA cm−2 for more than 50 h in a membrane electrode assembly. Mechanistic investigations employing in situ Raman and attenuated total reflection surface‐enhanced infrared absorption spectroscopy unravel that Mg(OH)2 plays a pivotal role to enhance the CO2RR kinetics by facilitating the first‐step electron transfer to form anionic *CO2− intermediates. DFT calculations further elucidate that introducing Lewis acid sites help to polarize CO2 molecules absorbed at the metal centers of CoPc and consequently lower the activation barrier. This work signifies the tailoring of catalyst‐support interface at molecular level for enhancing the turnover rate of CO2RR.
Vitrification of Liquid Metal‐in‐Oil Emulsions Using Nano‐Mineral Oxides
Authors: Ryu Seoung Young , Lee Hyunji , Hong Younggi , Bandal Harshad , Goh Munju , Kim Hern , Lee Joohyung 
Published: March 2023

AbstractGa and Ga‐based alloys have recently received significant attention as “liquid metals (LMs)” with the combined advantages of a low toxicity, low melting point, high fluidity, and high conductivity. An important method for modifying LMs for enhanced processabilities and new applications is to tailor them into colloidal microdroplets suspended in a liquid medium. In this study, the unique vitrification behavior of oil‐based colloidal systems is shown with suspended LM microdroplets induced by various mineral oxide (MO) nanoparticles that are added as solid rheology modifiers. MOs exhibit a high affinity for the surfaces of suspended LM droplets in an apolar oil medium due to the polar interaction between the MO surface and the oxide skin of the LM. Thus, even minute amounts of added MOs (ΦMO < 0.01) transform a free‐flowing LM suspension (ΦMO ≈ 0.55) into a highly viscoelastic fluid that enables advanced processing (e.g., 3D printing). At high MO loadings (ΦMO ≥ 0.1), an emulsion with unprecedentedly high rheological strength is obtained, characterized by a yield stress of ≈104 Pa. In highly vitrified emulsions, partial sintering effects are induced by high internal sample stress, which improves the thermophysical properties of emulsions that may be useful for several practical applications.
A Cellulose/Polyethylene Oxide Gel Polymer Electrolyte with Enhanced Mechanical Strength and High Ionic Conductivity for Lithium‐Ion Batteries
Authors: Li Chunxing , Ou Liqi , Liu Yi , Xu Linhe , Zhou Shuang , Guo Liping , Liu Hao , Zhang Ze , Cui Meng , Chen Gang , Huang Jianlin , Tao Jinsong 
Published: March 2023

AbstractPolyethylene oxide (PEO) gel polymer electrolyte (GPE) is a promising electrolyte for rechargeable lithium‐ion batteries (LIBs). However, they still suffer from weak mechanical properties and low ionic conductivity. Herein, a novel hybrid GPE with enhanced mechanical properties and superior ionic conductivity is developed by introducing regenerated cellulose (RC) into PEO. Benefiting from the 3D porous interconnected network structure of cellulose aerogels, the obtained PEO‐RC GPEs exhibit improved mechanical strength (up to 40 MPa), increased electrolyte absorption ability, excellent ionic conductivity (4.34 × 10−3 S cm−1), and remarkable Li‐ion transfer number (0.60). As a result, a rechargeable LIB assembled with LiFePO4/GPEs/Li demonstrates a high initial discharge capacity of 149.3 mAh g−1 at 0.2 C and an impressive capacity of 141.3 mAh g−1 (94.6% capacity retention) after 100 cycles. This work provides a new route to the design and synthesis of novel GPEs toward next‐generation safe rechargeable LIBs.
Activating Lattice Oxygen in Spinel ZnCo2O4 through Filling Oxygen Vacancies with Fluorine for Electrocatalytic Oxygen Evolution
Authors: Xiao Kang , Wang Yifan , Wu Peiyuan , Hou Liping , Liu Zhao‐Qing 
Published: March 2023

AbstractThe development of productive catalysts for the oxygen evolution reaction (OER) remains a major challenge requiring significant progress in both mechanism and material design. Conventionally, the thermodynamic barrier of lattice oxidation mechanism (LOM) is lower than that of absorbate evolution mechanism (AEM) because the former can overcome certain limitations. However, controlling the OER pathway from the AEM to the LOM by exploiting the intrinsic properties of the catalyst remains challenging. Herein, we incorporated F anions into the oxygen vacancies of spinel ZnCo2O4 and established a link between the electronic structure and the OER catalytic mechanism. Theoretical density calculations revealed that F upshifts the O 2p center and activates the redox capability of lattice O, successfully triggering the LOM pathway. Moreover, the high electronegativity of F anions is favourable for balancing the residual protonation, which can stabilize the structure of the catalyst.
Reduced graphene oxide catalytically enhances the rate of cyanate ester curing under variable frequency microwave heating
Authors: Warner Matthew , Jeng Tiffany , Ayar Sonya , Sekhar Shraddha , Marin Delfina , Engler Anthony , Coverdell Danielle , Ham Jackson , Kohl Paul 
Published: March 2023

AbstractThe curing of Lonza Primaset PT‐30 novolac cyanate ester resin and EPON 826 bisphenol‐A diglycidyl ether were investigated using convective thermal heating and variable frequency microwave (VFM) heating. The addition of 1 part per hundred reduced graphene oxide (r‐GO) to PT‐30 novolac cyanate ester increased the VFM cure rate compared to thermal heating. Curing it at 160°C for 240 min with VFM heating resulted in a 55% degree of cure compared to a 26% degree of cure with thermal heating. This observed VFM rate enhancement is due to selective microwave heating of the r‐GO particles in the resin resulting in increased r‐GO catalytic activity toward cyanate ester curing. It is both a thermal and catalytic effect, the latter of which is absent when r‐GO is added to a bisphenol‐A diglycidyl ether resin with o‐phenylenediamine hardener. Impurities present in the PT‐30 matrix do not appear to contribute to its overall cure kinetics, nor do they participate in the observed VFM rate enhancement.
Mind the past: A systematic review on psychological autopsy
Authors: Pacchioni Federico , Bosia Marta , Moretti Giulia , Barbieri Cristiano , Bellumore Silvia , Travaini Guido 
Published: March 2023

AbstractPsychological Autopsy (PA) has become widespread to the point of being applied in many diverse fields. However, it is difficult to identify a standard model. In this systematic review, we focused on PA studies assessing mental illness as a major risk factor for suicide. The research, performed on Scopus, Embase, and Pubmed to cover the last 20 years led to 321 reports of which 15 met the inclusion criteria. Results confirmed mental illness as the main risk factor for suicide, followed by specific socio‐demographic factors and life events. The analysis of methodologies depicted a still highly heterogeneous scenario, especially regarding data collection and variables included. However, concerning psychiatric evaluations, an initial standardization process of PA models emerged. In conclusion, the approach is in evolution, and novel guidelines are needed to promote the application of PA as a fundamental tool to inform suicide prevention efforts and to assist forensic examiners in court.
Experimental Investigation of Flow Uniformity in a Bank‐Type Earth‐Air Heat Exchanger
Authors: Goyal Vaishali , Asati Arun Kumar , Arora Amit 
Published: March 2023

AbstractThe airflow in earth‐air heat exchangers with different types of flow was examined at various inlet velocities. The results show that there is a significant variation in the mass flow rate of air through the holes for both induced and forced flow. The mass flow rate ranges from 0.013 to 0.119 kg s−1 for forced flow and from 0.018 to 0.128 kg s−1 for induced flow at a velocity of 4.1 m s−1. In contrast, the variation in the mass flow rate through the pipes is significant only for forced flow and almost negligible for induced flow. The mass flow rate ranges from 0.029 to 0.054 kg s−1 for forced flow and from 0.043 to 0.045 kg s−1 for induced flow at the same velocity, indicating that induced flow may be a valuable method for optimizing the earth‐air heat exchanger performance.
Divergent Reaction of Indoline‐derived Azadienes withα‐Bromohydroxamates: Synthesis of Spiro‐indolinepyrrolidinones and Indoline‐fused Diazepinones
Authors: Jin Hai‐Shan , Fang Qing‐Yun , Wang Jin‐Qi , Zhao Li‐Ming 
Published: March 2023

AbstractA divergent reaction of indoline‐derived azadienes withα‐bromohydroxamates for the selective synthesis of spiro‐indolinepyrrolidinones and indoline‐fused diazepinones was disclosed. This reaction sequence involved an initial formation of five‐membered spirocyclic products followed by an intramolecular ring‐opening and ring expansion to produce seven‐membered diazepinones. We demonstrated that controlling the reaction time could modulate the reaction pathway for formation of different molecular frameworks for the same set of substrates. Based on the experimental results, the reaction mechanism was also discussed and proposed to explain the phenomena observed in the process.
Aminated Polyacrylonitrile Nanofiber Membrane for Effective In Situ Bivalent Cadmium Contaminated Kaolin Remediation
Authors: Jia Botao , Yang Ning , Zhang Xianwen , Wang Gan , Wang Peichen , Zhao Junqiang , Chen Li , Zhao Yiping 
Published: March 2023

AbstractCadmium is a harmful pollutant in soil. Here, an aminated polyacrylonitrile (PAN) nanofiber membrane is obtained by electrospinning and amination modification for effective in situ remediation of bivalent cadmium (Cd(II)) contaminated kaolin. The aminated PAN (APAN) nanofiber membrane has the potential to be used as permeable reactive barrier (PRB) combined with electrokinetics (EK) for the remediation of potentially toxic metal contaminated soil. Morphology and chemical characterizations of the nanofibers are analyzed by scanning electron microscopy and attenuated total reflectance Fourier transform infrared spectroscopy. The maximal adsorption capacities of Cd(II) on APAN nanofiber membrane, as calculated from the Langmuir model, are 51.8 mg g−1. In addition, the obtained APAN nanofiber membrane can also be facilely regenerated through the adsorption/desorption experiments (5 cycles). The APAN‐15 nanofiber membrane is used for the remediation of Cd(II) contaminated kaolin. The pH, water content, conductivity, and Cd(II) concentration of kaolin are detected after EK process. These results show that the APAN‐15 nanofiber membrane works as adsorption medium and can accelerate the migration rate of Cd(II) in kaolin, stabilize the pH, and water content. The APAN nanofiber membrane as PRB material can remove Cd(II) in soil effectively and remediate the soil via the EK/APAN process.
Preparation of DNA and RNA Fragments Containing Guanine N2‐Thioalkyl Tethers
Authors: Hou Xiaorong , Wang Gang , Gaffney Barbara L. , Jones Roger A. 
Published: March 2023

AbstractThis article describes procedures for preparation of deoxyguanosine and guanosine derivatives in which the guanine N2 contains a thiopropyl tether, protected as a tert‐butyl disulfide. After incorporation into a DNA or RNA fragment, this tether allows site‐specific cross‐linking to a thiol of a protein or another nucleic acid. © 2023 The Authors. Current Protocols published by Wiley Periodicals LLC.Basic Protocol 1: Preparation of diisopropyl‐1‐(tert‐butylthio)‐1,2‐hydrazinedicarboxylate (4)Basic Protocol 2: Preparation of the 2′‐deoxyguanosine N2‐propyl‐tert‐butyl disulfide phosphoramidite (12)Basic Protocol 3: Preparation of the guanosine N2‐propyl‐tert‐butyl disulfide phosphoramidite (20)Basic Protocol 4: Preparation of DNA fragments containing N2‐propyl‐tert‐butyl disulfide guanineAlternate Protocol: Preparation of RNA fragments containing N2‐propyl‐tert‐butyl disulfide guanineBasic Protocol 5: Conversion of N2‐propyl‐tert‐butyl disulfide to the free thiol, disulfide 5‐thio‐2‐nitrobenzoic acid disulfide, or ethylamine disulfide
The efforts of manufacturing enterprises toward sustainable development under voluntary environmental policy: The roles of external pressure, attraction, and internal attributes
Authors: Li Zhi , Shao Qianwen , Song Jiayun 
Published: March 2023

AbstractBased on the National Green Factory Policy (NGFP) issued by the Chinese government in 2016, we analyzed the list of manufacturing enterprises awarded the National Green Factory (NGF) designation in 31 provinces over the period 2017–2021. In this regard, we found that the local governments' political resources and soft pressure, and enterprises' profitability have a positive effect, while mimetic pressure has a negative effect on the tendency of manufacturing enterprises to declare NGF designation (hereafter, TENDENCY). Moreover, the positive effect of soft pressure was stronger when political resources were high (vs. low). Additionally, we observed a U‐shaped relationship between the enterprises' environmental pollution level and TENDENCY, and that profitability can weaken such relationship. This study contributes to the literature on the institutional theory and resource dependence theory, and provides new insights into how governments can develop voluntary environmental policies to incentive manufacturing firms to engage in green behaviors.
Dynamic analysis of axially loaded cantilever shear‐beam under large deflections with small rotations
Authors: Saitta Fernando 
Published: March 2023

AbstractThe modal analysis and seismic response of a vibrating cantilever, with or without tip mass and rotary inertia, are investigated in this study using a shear deformable beam model and including the effect of vertical load. Based on existing approaches, an original method is proposed that does not use fourth‐order uncoupled equations to determine modal deflection and rotation. In fact, the approach presented herein transforms the second‐order coupled system into a first‐order system which can be solved more easily using matrix algebra and Laplace transform. Furthermore, the proposed form allows a straightforward demonstration of orthogonality conditions, that is, the problem is self‐adjoint, and the solution in the case of forced response using modal superposition. In addition, even if the solution presented herein is applicable only to the cantilever with a tip mass and rotary inertia, the scope is general, and the approach can be applied to shear deformable beams with other boundary conditions. Finally, the seismic response by modal superposition is shown, and some examples are proposed and discussed for the case of uniform or continuously varying cross‐sectional properties.
How healthy are Australian lunch box snacks with child‐directed marketing?
Authors: Watson Wendy L. , Torkel Sophia , Kat Martha , Hughes Clare 
Published: March 2023

AbstractIssue AddressedThe diets of Australian children, including their lunch boxes have a disproportionate amount of discretionary foods. Packaged snacks have marketing directed to both children and parents.MethodsPackaged school lunch box snacks were identified on supermarket websites. Nutrition information and child‐directed and parent‐directed marketing on the package were analysed. The “healthiness” of products was analysed using the Health Star Rating (HSR) (presently on packaging in Australia), two criteria designed for assessing food suitable for marketing to children (the Australian Health Council and the World Health Organization Western Pacific region) and Chilean criteria (used for broad food regulation).ResultsThe average HSR of the 135 products was 2.2% and 79% had a HSR <3.5. About 39% of products had child‐directed marketing. Child‐directed marketing would be removed from 89% sweet snacks, and 91% savoury snacks if products with a HSR <3.5 were not allowed to carry that marketing. This is less than the proportion not allowed using criteria from Chile (100%), World Health Organization Western Pacific Region (99%) and the Australian Health Council (93%).ConclusionsA policy that disallows marketing tactics on unhealthy food based on any of the criteria studied would remove most of both child‐directed and parent‐directed marketing on packaged lunch box snacks.So What?Removing child‐directed marketing from unhealthy products would help parents when shopping and contribute to addressing the high proportion of discretionary foods eaten by children at school. Child‐directed marketing on packaging should be a part of comprehensive regulation to protect children from the marketing of unhealthy foods.
Oral human papillomavirus (HPV) infection and HPV vaccination in an Australian cohort
Authors: de Souza Marjorie M. A. , Hartel Gunter , Olsen Catherine M. , Whiteman David C. , Antonsson Annika 
Published: March 2023

AbstractHuman papillomavirus (HPV)‐related oropharyngeal cancer (OPC) is increasing in incidence, yet very little is known about oral HPV infection in the general population. In this Australian‐based study we assess oral HPV prevalence according to HPV vaccination status. Participants of the Oral Diversity Study were Australian residents, aged 18 to 70 years, who filled out a questionnaire about lifestyle and sexual behaviour, and donated a saliva sample in 2020 to 2021. We obtained permission to access HPV vaccination status through record linkage with the Australian Immunisation Register. Saliva samples were DNA extracted, DNA quality checked and analysed for HPV. We recruited 1023 participants to the Oral Diversity Study. Nine hundred twenty‐one returned a saliva sample for analysis, 911 passed the DNA quality check and were included in the study. The oral HPV prevalence was 7.2%, and was strongly associated with sexual behaviours. We identified 27 different HPV types; 53% of participants carried high‐risk HPV types, with no difference between the vaccinated and the unvaccinated groups (53% both, P = .979). Two hundred thirty participants (26%) were HPV vaccinated. The oral prevalence of the nine HPV types included in the nonavalent HPV vaccine was significantly lower in the vaccinated participants compared to the unvaccinated (0.9% vs 3.4%; P = .022). These findings suggest that a sizeable minority of Australian residents harbour oral HPV infections, and many of these are high‐risk subtypes. We found some evidence that HPV vaccination resulted in lower prevalence of oral HPV infections of vaccine‐specific types. Larger surveys are required to confirm these findings.
Hyperspectral imaging to accurately segment skin erythema and hyperpigmentation in cutaneous chronic graft‐versus‐host disease
Authors: Saknite Inga , Kwun Shinwho , Zhang Kathy , Hood Alexis , Chen Fuyao , Kangas Lauri , Kortteisto Pirjo , Kukkonen Ari , Spigulis Janis , Tkaczyk Eric R. 
Published: March 2023

AbstractIn 51 lesions from 15 patients with the inflammatory skin condition chronic graft‐versus‐host‐disease, hyperspectral imaging accurately delineated active erythema and post‐inflammatory hyperpigmentation. The method was validated by dermatologist‐approved confident delineations of only definitely affected and definitely unaffected areas in photographs. A prototype hyperspectral imaging system acquired a 2.5 × 3.5 cm2 area of skin at 120 wavelengths in the 450–850 nm range. Unsupervised extraction of unknown absorbers by endmember analysis achieved a comparable accuracy to that of supervised extraction of known absorbers (melanin, hemoglobin) by chromophore mapping: 0.78 (IQR: 0.39–0.85) vs. 0.83 (0.53–0.91) to delineate erythema and 0.74 (0.57–0.87) vs. 0.73 (0.52–0.84) to delineate hyperpigmentation. Both algorithms achieved higher specificity than sensitivity. Whereas a trained human confidently marked a median of 7% of image pixels, unsupervised and supervised algorithms delineated a median of 14% and 27% pixels. Hyperspectral imaging could overcome a fundamental practice gap of distinguishing active from inactive manifestations of inflammatory skin disease.
The Joint Commission on the Mental Health of Children, 1965–1970: Emotional disturbance, race and paths not taken in child psychiatry
Authors: Hirshbein Laura 
Published: March 2023

AbstractThe Joint Commission on the Mental Health of Children (JCMHC) was a sprawling, multidisciplinary project that took shape in the years immediately after the assassination of President John F. Kennedy. Participants included child psychiatrists, educators, psychologists, social workers, philanthropists and other laypeople and professionals interested in the plight of children. While the original inspiration for the JCMHC was to address the potential for violence from disturbed children and adolescents, its findings and recommendations were an indictment of American society itself in which poor children went hungry, minority children were oppressed and there were not sufficient resources dedicated to the mental health of the nation's population of young people. The task forces and committees of the JCMHC spent significantly more time addressing prevention and mental health rather than mental illness. Two years into the work of the JCMHC, the leadership formed a committee to specifically examine issues related to race. The final report, published in popular book form asCrisis in Child Mental Health, arrived after the unraveling of the liberal consensus that had fueled President Lyndon Johnson's Great Society programs. Most of the proposed solutions for government intervention were ignored by the Nixon administration. The focus on mental health and the willingness to take a critical look at the detrimental effects of racism had represented child psychiatry at that time. In the decades that followed, however, child psychiatrists turned away from issues about prevention, race and environment and instead focused on the problems of mental illness in individual children.