Miracle-dz/UniFAR-FTUs huggingface dataset:
A Similarity Based Modeling Approach for Turbomachine Fault Prediction

Faults in the critical components of a turbomachine usually result in unplanned outage, leading to huge loss of properties and life. Condition monitoring becomes a promising tool to provide automatic early alerting of potential damage in critical components thus ensuring the system safety and reliability while lowering its maintenance cost. This is still a challenging hot topic due to the data imperfection and multivariate correlation, as well as the variation of faults and components in different turbomachines. In this paper, a condition monitoring method based on similarity-based model is proposed to solve these problems in fault prediction of large turbine machinery. Bayesian wavelet multi-scale reconstruction is proposed to address the potential noise in the sensed multivariate time historical data. The advanced signal processing balances the over-denoising and under-denoising of raw multivariate signals. An optimized auto-associative kernel regression (OAKR) approach is developed to represent the healthy status of the turbomachine system and further predict its responses under unknown status. The residual error between the estimated and measured values of the OAKR model will become the larger when the turbine machinery has an early fault. The statistical method of moving window is used to detect the change of mean square error of residuals over the time. When the mean square error exceeds a preset threshold, a fault mark will be given. A comparison study is conducted to demonstrate the effectiveness and feasibility of the proposed methodology by using the real-world data and events collected from a centrifugal compressor.
ANOTHER VIEW OF EFFICIENCY IMPROVEMENT IN DATA ENVELOPMENT ANALYSIS

ABSTRACT Data envelopment analysis (DEA) is a mathematical programming approach for measuring the relative efficiencies within a group of decision making units. An important outcome of such an analysis is a set of values for dual variables which indicate how the associated factors should be adjusted so that input wastages and/or output shortfalls can be eliminated. The traditional DEA model gives a dual variable to associate with the normalizing equation. This setting implies that the adjustment proportions of all input or output factors are the same for efficiency improvement. This study modifies the original DEA model by decomposing the normalizing equation in order to for it to be associated with different dual variables. As a consequence, to improve efficiency the adjustment proportion of each input or output factor can be different. In essence, the proposed approach can not only set targets of factors for inefficient decision making units to eliminate inefficiency, but can also deal with the exogenous variables in a DEA context.
The Effect of Strategic Management on Organizational Performance: The Mediating Role of Knowledge Sharing in Private Universities in Kuwait

This study aims to examine the effect of strategic management on organizational performance by mediating the role of knowledge sharing in private universities in Kuwait. The survey included 296 employees are working in three private universities in Kuwait namely Gulf University for Science and Technology, Arab Open University Kuwait, and the American University of the Middle East. The study used SPSS and PLS-SEM in order to test the hypotheses of the study. The results indicated that strategic management and knowledge sharing has a positive direct effect on organizational performance. Meanwhile, the results indicated that strategic management has a positive direct effect on knowledge sharing. Moreover, the results indicated that knowledge sharing mediated the effect between strategic management and organizational performance. This study recommended replicated context of this study in the Kuwait service industry which constitutes a significant proportion of businesses in the country. This will provide further evidence on the relationship between strategic management and organizational performance in Kuwait.
An investigation on using measurement uncertainty as decision rule for statement of conformity

This research article refers to the application of the evaluated measurement uncertainty for deciding the statement of conformity. It is a proposal to rethink about the classification of measuring devices, taking into account the calculations of uncertainty as a decision rule. It is also a base for complete compatibility and harmonization between ISO 17025:2017 and the other standards. To verify this proposal a case study on compression testing machine classification is used. This proposal aims to review classification criteria for these machines. Since the uncertainty value is equivalent to all parameters that may affect the performance of these machines, it is logical and accurate to use it as the basis for the classification. This approach may be employed for the upcoming version of ISO 7500 standard to use the uncertainty value as a base for machine classification.
A Review of Medicinal Uses, Phytochemistry and Biological Activities of Bolusanthus speciosus (Bolus) Harms (Fabaceae)

Bolusanthus speciosus (Bolus) Harms is a deciduous and ornamental tree with its different parts used traditionally to treat various diseases. The main aim of this review is to provide an overview and critical analysis of the medicinal uses, phytochemistry, and biological activities of B. speciosus. The information presented in this study was gathered using various databases such as PubMed, Taylor and Francis imprints, Springer, NCBI, Google scholar and Science direct, and review of books, journal articles and other scientific publications kept in the university library. The articles published between 1933 and 2020 were used in this study. The bark, leaf and stem infusion of B. speciosus are mainly used for cleansing blood and as an emetic, and a traditional medicine for abdominal pains, kidney problems, sexually transmitted infections and stomach problems. Phytochemical compounds identified from the leaves, root bark, root wood, seeds and stem bark of B. speciosus include alkaloids, essential oils, flavonoids, phenolics, saponins and tannins. The biological activities exhibited by B. speciosus and the phytochemical compounds isolated from the species include anti-arthritic, antibacterial, antigonococcal, antimycobacterial, antifungal, anti-HIV, anti-inflammatory and antioxidant activities. Future research should focus on toxicological screening, in vivo studies and clinical trials involving the crude extracts and phytochemical compounds isolated from the species.
The Ph Salivary Biomarker – is There a Difference Between Cleft and Non-Cleft Orthodontic Patients ?

Cleft lip and/or palate (CL/P) is one of the most common congenital malformations. In view of the important role of salivary pH and the scarcity of studies on this topic in patients with CL/P, the aim of this study was to analyze salivary pH in patients with and without CL/P undergoing orthodontic treatment with fixed appliances. The sample consisted of 45 patients wearing orthodontic appliances (20 boys and 25 girls; mean [SD] age, 15 [2.70] years), who were divided into 3 groups: control group (patients without CL/P, n = 15); CL/P group (patients with CL/P without oronasal communication, n = 15); and CL/P-O group (patients with CL/P with oronasal communication, n = 15). Saliva samples were collected and evaluated for pH by using indicator strips, with a reading scale ranging from 2.0 to 9.0. Data were tested for normality using the Shapiro-Wilk test, and results were compared by the Kruskal-Wallis test (p ≤ 0.05). The median pH was 7.5 in the control group, 7.0 in the CL/P group, and 6.5 in the CL/P-O group. Although there was no statistically significant difference among the 3 groups (p ≤ 0.05), the CL/P and CL/P-O groups tended to have lower and more scattered pH values than the control group. Salivary pH did not differ statistically between patients with and without CL/P wearing fixed orthodontic appliances. However, those with CL/P tended to have more acidic and scattered pH values. Further studies and trials involving a larger number of patients are important to clarify this issue. Clinical article (J Int Dent Med Res 2021; 14(3): 1014-1020)
The Effect of Counselling Intervention during Antenatal Care on the Knowledge and Attitude about Danger Signs in Pregnancy: A Cross-Sectional Study in Takalar Regency -

Objective: This study was to examine the effects of counselling delivered during antenatal care on the knowledge and attitudes of pregnant women about danger signs in pregnancy.Methods: This was a pre-experimental design using one group pre- and post-test only. This study was conducted in Takalar, specifically within Sanrobone Community Health Service working area. Takalar is located in South Sulawesi Province Indonesia and this area is coastal with the majority of people working as a fisherman. Participants of this study were pregnant women living in the villages which are included in the working area of Sanrobone Community Health Service.Results: The study shows that counselling improved knowledge and attitude of pregnant women about danger signs in pregnancy (p=0.011 and p=0.025, respectively). The number of pregnant women with good knowledge and positive attitude increased after the intervention (43.8% vs 93.8%, 62.5% vs 93.8%, respectively). Conclusions: In can be concluded that intervention by means of counselling can improve the knowledge and attitude of pregnant women about danger signs in pregnancy. Therefore, it is important to implement the counselling program delivered by health workers in Community Health Service in order to mitigate the risk of maternal mortality.
Patterns of entrepreneurial and intrapreneurial growth driven by the fit between micro and macro environments

Based on entrepreneurship and intrapreneurship literatures, this paper investigates whether the fit between micro environment and macro environment of firms help to generate optimal firm growth rates in sales and employment. A cross-case analysis contrasts knowledgeintensive young entrepreneurial and established intrapreneurial firms to established conservative firms. Both entrepreneurial and intrapreneurial firms are able to grow faster than conservative firms. Consistent with previous findings, we find that entrepreneurial firms are able to exploit available opportunities in the technology and market domains to the best as empowered by their intra-organisational competences. They are followed by intrapreneurial firms that possess lower degrees of technological competences, but grow almost as high as entrepreneurial firms. We conclude that firms’s high growth rates are driven by the fit that they can generate between their micro and macro environments. Conservative firms, which fail to create the fit, grow less.
DNA damage and repair mechanism in the synthetic lethal interactions

[ABSTRACT] Synthetic lethality is a phenomenon that the cell apoptosis generate when correlative mutations of two or more genes happen in one cell. Regarding the network of DNA damage respond and repair as the background, synthetic lethality may provide a feasible proposal to deal with the apoptosis escapement within cancer cells, and will hopefully give a new method for treating DNA repair-defective human cancers. The defect of brca gene leads this phenomenon in triple negative breast cancer, which is a fundament to further this research. In this review, we discuss recent advances including the breast cancer susceptibility gene, p53, atm/atr and so forth. At the same time, we analyse some appearing pathways in posse when the synthetic lethality phenomenon combined with a system of suicide genes or chemotherapeutics. [KEY WORDS] Synthetic lethality; DNA damage repair; Therapy of carcinoma
Reduced locus coeruleus integrity linked to response inhibition deficits in parkinsonian disorders

Parkinson's disease and progressive supranuclear palsy (PSP) both impair response inhibition, exacerbating impulsivity. Inhibitory control deficits vary across individuals, and have been linked with worse prognosis and lack of improvement on dopaminergic therapy. Motor and cognitive control are associated with noradrenergic innervation of the cortex, arising from the locus coeruleus noradrenergic system. Here we test the hypothesis that loss of structural integrity of the locus coeruleus explains response inhibition deficits in progressive supranuclear palsy and Parkinson's disease. This cross-sectional observational study recruited 24 people with idiopathic Parkinson's disease, 14 with PSP-Richardson's syndrome, and 24 age- and sex-matched controls. All participants undertook a stop-signal task and ultrahigh field 7T-magnetic transfer weighted imaging of the locus coeruleus. Hierarchical Bayesian estimation of the parameters of 'race models' of go- versus stop-decisions was used to quantify the cognitive processes of response inhibition. We tested the multivariate relationship between locus coeruleus integrity and model parameters using partial least squares. Both disorders impaired response inhibition at the group level. Progressive supranuclear palsy caused a distinct pattern of abnormalities in inhibitory control, relative to Parkinson's disease and healthy controls, with a paradoxically reduced threshold for go responses, but longer non-decision times, and more lapses of attention. The variation in response inhibition correlated with variation in the integrity of the locus coeruleus, across participants in both clinical groups. Structural imaging of the locus coeruleus, coupled with behavioural modelling in parkinsonian disorders, confirms that locus coeruleus integrity is associated with response inhibition and its degeneration contributes to neurobehavioural changes. The noradrenergic system is therefore a promising target to treat impulsivity in these conditions. The optimisation of noradrenergic treatment is likely to benefit from stratification according to locus coeruleus integrity.
An empirical assessment of quality metrics for diversified similarity searching

A diversified similarity search retrieves elements that are simultaneously similar to a query object and akin to the different collections within the explored data. While several methods in information retrieval, data clustering, and similarity searching have tackled the problem of adding diversity into result sets, the experimental comparison of their performances is still an open issue mainly because the quality metrics are “borrowed” from those different research areas, bringing their biases alongside. In this manuscript, we investigate a series of such metrics and experimentally discuss their trends and limitations. We conclude diversity is better addressed by a set of measures rather than a single quality index and introduce the concept of Diversity Features Model (DFM), which combines the viewpoints of biased metrics into a multidimensional representation. Experimental evaluations indicate (i) DFM enables comparing different result diversification algorithms by considering multiple criteria, and (ii) the most suitable searching methods for a particular dataset are spotted by combining DFM with ranking aggregation and parallel coordinates maps.
Coupling Ifosfamide to nanoemulsion-based clove oil enhances its toxicity on malignant breast cancer and cervical cancer cells

The anticancer effects of chemotherapeutic agents may be accentuated, and their side effects minimized by combining them with essential oils in nanocarrier systems. This study aimed to incorporate ifosfamide (IF) into nanoemulsion-based clove oil (IF-CLV). The nano-emulsion (NE) formulas were characterized with Zetasizer. The cytotoxicity of the formulated NEs against cervical (HeLa) and breast (MCF-7) cancer cell lines was determined using MTT assay, light microscopy, and DAPI staining. The z – average diameters of NE-CLV and IF-CLV were 63.1±1.00 and 89.4±2.64 nm, while Zeta potential values were – 4.39±0.4 and – 11.65±1.1mV, respectively. Cytotoxicity studies revealed that relative to free IF, NE-CLV and IF-CLV were highly toxic on HeLa and MCF-7cells, in a dose-dependent manner. The half-maximal inhibitory concentration (IC50) values of NE-CLV against HeLa and MCF-7 have decreased 38 and 27 folds, while the corresponding IC50 values of IF-CLV have decreased 57 and 35 folds, respectively. These results suggest that the incorporation of IF into NE-based clove oil produces potent therapeutic effects against cancer cell lines.
Innovative Design and Analysis of an Electrically Small Reconfigurable Antenna for GPS and Blue Tooth Applications

In this paper, an electrically small, planar antenna with broad side radiation pattern is presented. The design contains a dipole and a segmented circular loop which works equivalent to that of a magnetic dipole. A circular patch with slots is used to provide impedance matching. In general, electrically small antennas suffer from narrow bandwidth. In this paper, the reconfigurability of the small antenna for two different applications, 1.5GHz and 2.4GHz, is discussed. This reconfigurability was achieved by using a BAR 64-03W pin diode to adjust the resonant frequency. Two reconfigurable frequency bands were achieved at 1.5GHz and 2.4GHz with broad side radiation patterns.
The effectiveness of dry needling on hamstring flexibility: A systematic review

Background: Hamstring injuries are a common problem for athletes, and hamstring tightness has been found to be a contributing factor to these injuries. Dry needling is a growing trend that poses the possibility of increasing flexibility through several mechanisms; however, there is currently no review on all of the studies done concerning the effectiveness of dry needling for improving hamstring flexibility. Purpose: The purpose of this systematic review was to evaluate the effectiveness of dry needling on hamstring flexibility in people with hamstring tightness. Methods: Search terms included dry needling or intramuscular stimulation, flexibility or range of motion or ROM, and hamstring. The databases searched were PubMed, MEDLINE, SPORTDiscus, and Cumulative Index to Nursing and Allied Health Literature (CINAHL.) Results: Ten articles were found from the initial search, and three remained after the removal of duplicates and screening the articles for abstracts and full text. Patients consisted of relatively young individuals with hamstring tightness. All studies used a stretching group for the comparison while interventions consisted of dry needling alone or dry needling with a stretching program. No studies showed a significant difference between dry needling and the control; however, all studies found that flexibility increased from baseline measurements following a dry needling treatment. Discussion: The results indicate that while dry needling may not be a better option than stretching, it could be used as a means for improving hamstring flexibility. Possible factors for the effectiveness of dry needling include increased blood flow and oxygen saturation to the muscle as well as the release of myofascial trigger points. Conclusion: Dry needling was not found to be significantly better than stretching, but poses a possibility as another method for improving hamstring flexibility. KEY WORDS: Hamstrings, Athletes, Flexibility, Tightness, Dry Needling, Stretching.
Just Noticeable Difference: The Marketplace Experience of General Motors

In mature markets, consumer perceptions of products are vitally important for the firm involved. Products are typically similar, and care must be taken to maintain enough differences between them to insure that the marketplace will see them as discrete offerings. Recently, General Motors encountered problems in differentiating its products between market segments [23], a situation which resulted in lost market share, much to the concern of GM shareholders and management [6]. Many of these problems have been attributed to GM's management, which has been viewed as carrying out an ill-conceived strategy differing from past practices [8]. This paper examines General Motor's problem with similarly appearing products through the use of the "just noticeable difference" concept Q.n. d. ) ([1], p. 140), which can be used to explain the requisite level of perceived difference between products. Several factors can affect this required level of difference, including consumers' previous product perceptions, changing demographics, and the number of products in the market. For a firm such as General Motors, the level of product differences could remain relatively constant from year to year. However, due to the factors noted above, consumers' level of perceived difference may be reduced. Additional competing products in the market can also result in limiting the number of distinct product positions [21J. By understanding these relationships, which are discussed in this paper, managers can anticipate and act on market developments that require a change in the level of differentiation between products.
Learning By Doing NeurIPS 2021 Competition: Controlling a Dynamical System using Control Theory, Reinforcement Learning, or Causality

This competition aims to bring together researchers from control theory, re-inforcement learning, and causality. We consider the following setting: The participants obtain pre-existing observational and interventional data generated by unknown dynamical systems. Track CHEM is a closed-loop problem in which a single impulse at the beginning of the dynamics can be set, while Track ROBO is an open-loop problem in which control variables can be set at each time step. The goal in both tracks is to infer actions (or controls or interventions) that optimize a given response variable, that is, actions that drive the system to a desired state. In this white paper, we introduce the competition tasks in more detail.
Levi Problem: Complement of a closed subspace in a Stein space and its applications

Let Y be an open subset of a Stein space X . We show that if Y is locally Stein and the complement X −Y is a closed subspace of X , then Y is Stein. We also discuss the applications of the theorem to open subsets Y whose boundaries in X are not closed subspaces of X . For example, we show that if for every boundary point P ∈ ∂Y , there is a closed subspace H of pure codimension 1 in X such that P ∈ H , H ∩Y =; and X −H is locally Stein, then Y is Stein. 2000 Mathematics Subject Classification. 32E10, 32E40, 14C20. Funding. This research is supported by Governors State University. Manuscript received 11th November 2019, accepted 13th July 2021.
Negative Correlation between Serum Brain-derived Neurotrophic Factor Levels and Obesity Predictor Markers and Inflammation Levels in Females with Obesity

BACKGROUND: Obesity has been widely associated with structural and functional changes in the brain, whereas inflammation is one of the potential mechanisms involved in these changes. OBJECTIVE: This study aims to prove the relationship between serum brain-derived neurotrophic factor (BDNF) levels and obesity predictor markers (body mass index and waist to hip ratio) and inflammation (interleukin-6 and Tumor Necrosis Factor-alpha) levels in females with obesity. METHODS: This study used a cross-sectional study method using 33 females with obesity aged 19-23 years, body mass index (BMI) > 27.5 kg/m2, normal blood pressure, normal resting heart rate (RHR), normal hemoglobin (Hb), and fasting blood glucose (FBG) ≤ 100 mg/dL. The examination of serum BDNF, IL-6, and TNF-α levels using the Enzyme-Linked Immunosorbent Assay (ELISA) method. The data were analyzed using Pearson product-moment test with a significant levels p<0.05. RESULTS: The results indicated that there is a negative correlation between serum BDNF levels and BMI (r = –0.759; p<0.001), WHR (r = –0.675; p<0.001), IL-6 levels (r = –0.530; p<0.001) and TNF-α levels (r = –0.561; p<0.001). CONCLUSION: Based on the results of the study, there is a negative correlation between serum BDNF levels and BMI, waist to hip ratio, and inflammation (interleukin-6 and Tumor Necrosis Factor-alpha) levels in females with obesity. Further studies are needed to confirm the present findings.