Miracle-dz/UniFAR-FTUs huggingface dataset:
Flexible Data Driven Inventory Management with Interactive Multiobjective Lot Size Optimization

We study data-driven decision support and formalize a path from data to decision making. We focus on lot sizing in inventory management with stochastic demand and propose an interactive multiobjective optimization approach. We forecast demand with a Bayesian model, which is based on sales data. After identifying relevant objectives relying on the demand model, we formulate an optimization problem to determine lot sizes for multiple future time periods. Our approach combines diﬀerent interactive multiobjective optimization methods for ﬁnding the best balance among the objectives. For that, a decision maker with substance knowledge directs the solution process with one’s preference information to ﬁnd the most preferred solution with acceptable trade-oﬀs. As a proof of concept, to demonstrate the beneﬁts of the approach, we utilize real-world data from a production company and compare the optimized lot sizes to decisions made without support. With our approach, the decision maker obtained very satisfactory solutions.
Structural Due Diligence, Operational Risks, and the Evaluation of Managed Account Platforms

The impact of the Great Financial Crisis on operational risk includes the birth of structural due diligence. Since the crisis, institutional investors have demanded more transparency and better governance in the hedge fund space. This demand has resulted in the growth of several different types of structures, including liquid alternatives via 40-ACT or UCITS funds, funds-of-one, managed accounts, and managed account platforms. Operational due diligence has extended beyond examining the noninvestment risks to include the best way structurally to access a specific hedge fund investment. The different structures have varying advantages and disadvantages, which translates to different types of operational risks. This article presents a matrix of the advantages and disadvantages of the structural forms and the concept of a structural alpha. The author examines managed account platforms (MAPs) and how to evaluate them.
The effect of A. Fumigatus SK1 and trichoderma sp. on the biogas production from cow manure

Lignocellulosic material consists of lignin, cellulose and hemicellulose. Converting lignocellulosic biomass such as cow manure (CM) into value-added products provides a potential alternative. Hydrolysis of cellulose and hemicellulose is a limiting step during Anaerobic Digestion (AD) of lignocellulosic biomass. Lignin in lignocellulosic biomass is the barrier for hydrolysis, thus limits the biogas production. In this study, the effect of A.Fumigatus SK1 and Trichoderma sp. on enzymatic pre-treatment of CM was investigated with respect to the biogas production. Three set of anaerobic digestion assays were carried out, with a working volume of 500 mL at 35 ± 2°C and 120 rpm. The first set of fermentation contained untreated CM. The second set of fermentation involved addition of A.Fumigatus SK1, and the last set contained Trichoderma sp. Several analysis were conducted to determine the biomethane potential (BMP), anaerobic biodegradability, reducing sugars concentration and lignin removal of CM before and after pre-treatment. Result showed that, among both evaluated pre-treatment methods, CM treated with Trichoderma sp. gave the highest methane potential with 0.023 LCH4-STP g VS-1 compared to CM treated with A.Fumigatus SK1(0.011 LCH4-STP g VS-1). A good correlation have been found in this study between lignin removal and reducing sugar produced where, the total lignin removal after treated with Trichoderma sp. was 60% followed by 43% after treated with A.Fumigatus SK1.The reducing sugar produced after pre-treated with Trichoderma sp. and A.Fumigatus SK1 was about 9.59 and 4.91 μmol glucose, respectively. These results collectively suggested that CM treated with Trichoderma sp. could be a better pre-treatment method for the higher methane production in anaerobic mono-digestion process.
Nota sobre la evolucion de los sistemas de informacion contable

La aparición del libro de H. Thomas Johnson y Robert S. Kaplan La contabilidad de costes. Auge y caida de la contabilidad de gestión cuyo título puede resultar una sorpresa para lo que muchos estudiosos de la economía entienden qué es la contabilidad de gestión y por lo que sugiere de mal momento para aquclla disciplina, nos lleva a plantearnos en el présente artículo las transformaciones experimentadas por el sistema de información que conocemos con el nombre de contabilidad y con el que, aunque no sea más que como usuarios, nos relacionamos cotidianamente.
A biomechanical examination of the inclusion of active flexibility in artistic gymnastic movements requiring mobility

Background and Study Aim. The purpose of the study is a biomechanical examination of the inclusion of active flexibility in artistic gymnastic movements requiring mobility (muscles' ability to stretch), flexibility and other motor abilities such as force, power, etc. Material and Methods. The study included 17 girl gymnasts aged 7-9 years old, with a body height of 140.7±10.2, weight of 34.1±6.4, and a body mass index of 17.6±3.0. Data collection in the study was made by using performance tests developed by FIG such as a Forward-Backward Split, Side Spit, Arm-Trunk Angle Backward, Trunk Bent Forward, Leg Raise forward, Leg Raise Sideward, Bridge, Standing long Jump, Lift Trunk Forward-60secs, Angle Degree of the Leg Split Position in Cartwheel, and Arm-Upper Body Angle Backward in Bridge Technique. The Kinovea 0.8. 15 program was used in the data analysis of the variables in the study. The SPSS 24 software program was used for the data analysis. Percentages of the angle degree calculated by the formula “%= (angle0 of the mobility in functional movement / angle0 of the active flexibility) *100” were found. Results. Results indicate that active flexibility was 90% functional in the leg raise sideward, 90% in the leg split during execution of the cartwheel, 17.5% in the bridge technique, and completely functional for the flexibility ratio expressed in the leg raise forward technique. In the analysis of the various elements of the similar biomechanics, the anatomic structure and similar body planes, it was concluded that active flexibility expressed in the movements required a mobility of around 65-75%. Conclusions. it was determined that the functionality rate of the techniques requiring active flexibility and requiring mobility of the same biomechanical and anatomical structure was around 65-75%. Therefore, to execute 100% of the flexibility in action (during active elements) as it is in a passively or actively, it may significantly increase force, motor control, dynamic balance, coordination etc., in the large range of motion.
MXenes as a versatile platform for reactive surface modification and superior sodium‐ion storages

Owing to the large surface area and adjustable surface properties, the two‐dimensional (2D) MXenes have revealed the great potential in constructing hybrid materials and for Na‐ion storage (SIS). In particular, the facilitated Na‐ion adsorption, intercalation, and migration on MXenes can be achieved by surface modification. Herein, a new surface modification strategy on MXenes, namely, the reactive surface modification (RSM), is focused and illustrated, while the recent advances in the research of SIS performance based on MXenes and their derivatives obtained from the RSM process are briefly summarized as well. In the second section, the intrinsic surface chemistries of MXenes and their surface‐related physicochemical properties are first summarized. Meanwhile, the close relationship between the surface characters and the Na‐ion adsorption, intercalation, and migration on MXenes is emphasized. Following the SIS properties of MXenes, the surface‐induced SIS property variations, and the SIS performance of RSM MXene‐based hybrids are discussed progressively. Finally, the existing challenges and prospects on the RSM MXene‐based hybrids for SIS are proposed.
Reduction of metals in production plant's effluents by applying air Micro-Nanobubbles in a factory of Lead Acid Batteries of the district of Puente Piedra, Lima

The Lima city has industrial areas that generate many industrial effluents that affect the public health and environment. The problem studied in a factory of Lead Acid Batteries located in Puente Piedra, Lima is, that it generates and discharges acidic wastewater (pH = 1.52). The research was experimental, at the laboratory level, to apply the treatment with Micro-Nanobubbles of air to these industrial waters, which contain metals such as Aluminum (14.967 mg / L) and Lead (4.227 mg / L), strongly acidic (pH 0.55). Then the pH was adjusted into two samples with Sodium Hydroxide 1 M until obtain acid (6.01) and basic (8.92) pH media in order to apply the Micro-Nanobubbles ( MNBs) into these samples. Micro-Nanobubbles were then generated by a device for Micro-Nanobubbles generation patented by PhD. Jhonny Valverde Flores. The air pressure was 90 PSI, the size of the MNB was 7 μm, the water flow was 4.67 L / min. Three samples (S1, S2, and S3) were dosed in 1 L each one. The volume ratio of water effluent / water with MNBs for S1 was 3/7, for S2 was 6/4 and for S3 was 7/3. The treatment lasted 8 minutes and as results of the research after applying MNBs, the Aluminum’s concentration in S1 decreased to 1,176 mg / L, in S2 decreased to 1,421 mg / L and in S3 decreased to 11,996 mg / L, achieving an efficiency of 92.14 %, 90.51% and 19.85%, respectively; And the Lead's concentration in S1 decreased to 0.264 mg / L, in S2 decreased to 0.065 mg/L and in S3 decreased to 0.116 mg / L, achieving an efficiency of 93.75%, 98.46% and 97.26%, respectively.
Injury prevention of student rock climbers based on the formation of rational technique of movements: a randomized control trial

Background and Study Aim. Students are often injured while playing sports. The main condition for preventing injuries is the correct technique of movements. In the literature, rock climbing has not been analyzed in terms of prevention of student injuries. Therefore, the development of programs to prevent injuries of students-rock climbers is relevant. Aim: to determine the impact of the use of exercises in a closed kinematic chain on the technical skill and the number of injuries to the elbows of student-rock climbers based on the analysis of the one-arm hang technique. Material and methods. First, to substantiate the correct technique in rock climbing, the technique of performing one-arm hang was analyzed by 20 leading male climbers of Ukraine and 20 students - novice male climbers. Then a randomized control study was conducted. The participants in the randomized control study were 40 male students-climbers in the intervention group and 44 male students-climbers in the control group aged 18-19 years. The one-arm hang technique was determined based on the angles between the shoulder and the collarbone during the movement. The experiment lasted 1 year. At the beginning and at the end of the experiment, the analysis of the one-arm hang technique was carried out. The number of elbow injuries in both groups was also recorded. Results. The main parameters of the one-arm hang technique for qualified and unskilled climbers have been substantiated. For qualified climbers, one-arm hang involves the muscles of the shoulder girdle, torso, and legs. In unskilled climbers, one-arm hang is provided only by the muscles of the arm. In a control randomized study, there was a significant improvement in the results of biomechanical analysis of the hang technique in athletes in the intervention group (p <0.001). The use of exercises in a closed kinematic chain significantly reduces the incidence rate of elbow injuries in student-climbers (p <0.05). The odds rate of mild elbow injuries in the control group was 4.625 times higher than the intervention one (95% CI: 1.198; 17.854), the odds rate of moderate injuries in the control group was 5.588 times higher than in the control group than the intervention one (95% CI: 1.143; 27.324). Conclusions. Exercises in closed kinematic chains are an effective means of improving climbing technique and injury preventing to university students during rock climbing.
N17-129-136-WST 49.5-6

Pink water, explosive-laden wastewater produced in army ammunition plants is often treated using expensive and non-destructive granular activated carbon (GAC) adsorption. This paper compares GAC adsorption and two alternative treatment technologies, anaerobic GAC fluidized bed reactor and zerovalent iron-Fenton process. The bench-scale demonstration of the zero-valent iron-Fenton process with real pink water is reported. The features of three technologies are compared and their advantages and drawbacks are discussed.
Using an Eye Gaze New Combined Approach to Control a Wheelchair Movement

Persons with mobility impairments have a lower quality of life, being affected at physical, psychological, social and financial level. More than a half of wheelchair users have difficulty going outside their homes, and this is reflected on their employment rate - only seventeen percent are employed. More than half of power wheelchair users reported difficulty in learning how to maneuver a traditional power wheelchair. The progress registered in mobile robotics allowed the creation of smart wheelchairs, which opens the opportunity for new ways to develop user interfaces and even to add navigation aids – thus approaching the difficulties in learning how to maneuver the wheelchair. An intuitive way to give commands is using the eye gaze. This paper presents a smart user interface, based on eye gaze tracking, called Display/Eye Tracker device Set (DETS). DETS is a highly customizable user interface in relation to the specific, particular needs for each wheelchair user. DETS is also a command input for a semi-autonomous navigation system, based on VHF+ algorithm, in which the wheelchair user is able to select a destination in a local mapped space; the wheelchair control system will then move towards the selected destination in autonomous mode.
Consideration of Poynting Localized Energy Around Radiators: An FDTD-based Investigation

In this paper, we focus on the Poynting Localized energy around arbitrary radiating systems, which is fundamentally different from the antenna reactive energy. By utilizing the FDTD-computed near-zone electric / magnetic fields around any antenna (multi-band / wide-band, not necessarily electrically small), it is possible to evaluate the Poynting localized energy density for various temporal excitations (Gaussian pulse / gated sinusoidal signals). Using the proposed FDTD-based scheme, we analyze the localized energy behaviour around microstrip-fed slot-loaded printed dipoles. We re-examine the impedance matching issues and redistribution of localized energy, caused by perturbation of antenna parameters, and obtain insights not available from the traditional circuit-theoretic Q-factor approach.
A Distributed Mitigation Strategy against DoS attacks in Edge Computing

Internet of Things (IoT) is a platform where every day devices become smarter, every day processing becomes intelligent, and every day communication becomes informative. Numerous challenges prevent to secure IoT devices and their end-to-end communication in an IoT environment. In fact, the IoT security is still an open challenge. The purpose of this work is to examine a distributed strategy for mitigating Denial of Service (DoS) attacks against the fog node in an edge computing context in which the nodes exchange messages through Message Queue Telemetry Transport (MQTT) protocol. The proposed strategy is based on a dynamic message sending frequency of the lightweight nodes. It is also mitigated data tampering and eavesdropping by using Elliptic Curve Cryptography (ECC).
A Wideband Feeding Network for Compact Circularly Polarized Patch Antenna

In this paper, a wideband feeding network is proposed to match low-profile circularly polarized patch antennas (including the bandwidth of GPS and Beidou navigation system). By loading some metal posts, resonance frequency caused by the eigenmode is shifted to out of the occupied bandwidth. The feeding network consists of three Wilkinson power dividers. Every adjacent output port of the proposed feeding network has about 90° phase shifter in the occupied bandwidth, and the insertion loss of every port is about 0.5 dB. The gap between two substrates of feeding network should be well controlled in order to ensure the performance of the feeding network. Simulation and experiment results show that the relative bandwidth of the circularly polarized antenna loading this feeding network is about 37% for VSWR <2 and AR <3 dB from 1.164 to 1.64GHz.
Modified method to improve the diagnostic efficiency of 18F-FDG PET/CT in regional lymph node metastasis of esophageal squamous cell carcinoma

Background Regional lymph node (LN) metastasis is a significant factor influencing the treatment choice of esophageal squamous cell carcinoma (ESCC). The performance PET/CT as an imaging evaluation method for regional LNs in ESCC, is unsatisfactory due to the lack of logical criterion. We explored how a modified criterion improved the diagnostic value of 18F-FDG PET/CT in regional LN metastasis. Methods The data from 111 patients with ESCC were analyzed retrospectively. All patients underwent preoperative PET/CT examination, resection of the cancer, and regional LN dissection. The PET/CT images were interpreted by two experienced diagnosticians. LNs were allocated to five subregions. Each LN was diagnosed by two diagnostic criteria of PET/CT (traditional criterion and the modified criterion) one by one across the same field, and the accuracy of PET/CT was determined using the histopathologic results as the reference standard. Results A total of 4,847 LNs were dissected, of which 147 were confirmed as metastases by postoperative pathology. A total of 656 LNs were screened by 18F-FDG PET/CT imaging. The determination of all 656 LNs by PET/CT was compared with the pathological results. The diagnostic accuracy of the modified and traditional criteria for the five subregions (paraesophageal, neck, upper mediastinal, middle-lower mediastinal and ventral subregions) was: 74.60% vs. 61.90%, 86.44% vs. 81.36%, 90.26% vs. 70.78%, 96.19% vs. 75.09%, and 87.91% vs. 85.71%, respectively. Conclusions The modified diagnostic criterion had better diagnostic efficiency because it combined PET and CT imaging data.
Research on the Influence of CPU Power Management on the Performance of Parallel FDTD

To explore the effects of CPU new technologies on parallel computation on a PC cluster, the parallel Finite Difference Time Domain (FDTD) is taken as a sample, and the power management (PowerNow, Turbo Core) is investigated by a set of numerical experiments on a PC cluster with 8-core AMD Fx-8120 CPUs. The results demonstrate that these technologies exhibit quite different impacts on the parallel FDTD. PowerNow can considerably drop the parallel efficiency in some specific operations such as inter-process communication. Turbo Core accelerates the computation in low CPU usage
Obesity and Incident Kidney Disease: Busting the Myth of Metabolically Healthy Obesity.

obesity. Analyses from the National Health and Nutrition Examination Survey (NHANES) 1999-2004 illustrated the phenomenon that more than one-third of persons with obesity (as defined by Qu etelet index [body mass index] ≥30.0 kg/m) failed to exhibit common clinical manifestations of obesity, including hypertension, dyslipidemia, or insulin resistance, whereas more than 20% of persons of normal body composition (as defined by BMI <25 kg/m) exhibited 2 or more of these abnormalities. Some prospective studies also reported similar risks for coronary heart disease or overall mortality among “metabolically healthy” persons with obesity compared with their normal-weight counterparts. The implication then was that a subset of persons with overweight or obesity may be protected from adverse health effects, and that efforts at weight loss or maintenance in these “protected” persons might not be necessary. Since then, however, numerous authors and analyses have questioned the premise of metabolically healthy obesity. First, do hypertension, dyslipidemia, and insulin resistance capture the totality of the metabolic derangements in obesity? The short answer is “no,” as adipose tissue is a complex, highly active endocrine organ that expresses and secretes myriad proteins that have wideranging metabolic effects in the body (Fig 1) . As a result, the more stringent the threshold for metabolic health, the smaller the subgroup deemed metabolically healthy, and the less clinically relevant the construct becomes. Second, obesity is a chronic, relapsing, progressive disease process. In that construct, “metabolic healthy” obesity is a transient state, one in which individuals sustain their metabolic health for finite periods before developing adverse health outcomes. In this issue of AJKD, Wang et al demonstrate that incident chronic kidney disease (CKD) is one adverse health outcome from which persons with overweight and obesity do not escape. Using a large population-based cohort from the United Kingdom, and applying pragmatic definitions of metabolic health, the authors demonstrate a graded relation between BMI and incident CKD, whether defined by reduced estimated glomerular filtration rate (eGFR), albuminuria, or both. Over a mean follow-up of 5.4 years, the risk of incident CKD was 30% (95% CI, 28%-33%) and 66% (95% CI,
On the Distortion of UWB Circularly Polarized Time-Domain Pulses in Presence of Rotation

The paper provides a first theoretical study on the effect of rotational Doppler on circularly polarized pulsed communication. Despite the circularly polarized communication being considered immune to signal fading due to rotary misalignment, such misalignment will cause a frequency-invariant phase-shift. This phase shift will significantly distort the shape of the time-domain pulse. The property can be used for integration of orientation sensing into well establish pulse-based localization. However, it has also the potential to distort communication for some pulse-modulated UWB systems.
Tetrandrine beads using alginate/polyvinyl alcohol and alginate-carboxymethyl cellulose: Not ideal as colon-targeted dosage form

Objectives: Colon drug delivery system should be able to maintain drug release until the system reaches its target. In this study, beads were selected as drug carrier system to deliver tetrandrine to colon using a combination of two polymers, alginate and polyvinyl alcohol (PVA) and also alginate and carboxymethyl cellulose (CMC). It was hypothesized that alginate/PVA beads and alginate-CMC beads may be able to protect the drug effectively while in the gastrointestinal tract and may deliver the drug at colon under the influence of colonic pH. Materials and Methods: Beads were formulated into six formulae with different concentrations of polymer. Beads were characterized and evaluated for in vitro drug release using dissolution method. Results: Beads' Formula 3 (alginate and PVA 2:1) and Formula 6 (alginate and CMC 2:1.5) were the best formulae with entrapment efficiency 32.12% and 39.83%, respectively. The drug release test was performed first in hydrochloric acid (HCl) medium for 2 h, then in phosphate-buffered pH 7.4 + 2% Tween 80 for 3 h, and finally in phosphate-buffered pH 6.8 + 2% Tween 80 medium for 3 h, successively. The results of drug release in HCl pH 1.2 were 84.13%, 73.12%, 66.57%, 85.59%, 78.26%, and 69.56%, for Formula 1, 2, 3, 4, 5, and 6, respectively. Conclusion: All type of beads showed the high release of tetrandrine in HCl; hence, it is not ideal yet as a colon-targeted dosage form.