Miracle-dz/UniFAR-FTUs huggingface dataset:
Locating and Stabilizing Unstable Periodic Orbits Embedded in the Horseshoe Map

Based on the theory of symbolic dynamical systems, we propose a novel computation method to locate and stabilize the unstable periodic points (UPPs) in a two-dimensional dynamical system with a Smale horseshoe. This method directly implies a new framework for controlling chaos. By introducing the subset based correspondence between a planar dynamical system and a symbolic dynamical system, we locate regions sectioned by stable and unstable manifolds comprehensively and identify the specified region containing a UPP with the particular period. Then Newton’s method compensates the accurate location of the UPP with the regional information as an initial estimation. On the other hand, the external force control (EFC) is known as an effective method to stabilize the UPPs. By applying the EFC to the located UPPs, robust controlling chaos is realized. In this framework, we never use ad hoc approaches to find target UPPs in the given chaotic set. Moreover, the method can stabilize UPPs with the specified period regardless of the situation where the targeted chaotic set is attractive. As illustrative numerical experiments, we locate and stabilize UPPs and the corresponding unstable periodic orbits in a horseshoe structure of the Duffing equation. In spite of the strong instability of UPPs, the controlled orbit is robust and the control input retains being tiny in magnitude.
Steady-State Fluid-Solid Mixing Plane to Replace Transient Conjugate Heat Transfer Computations during Design Phase

The demand for increased turbomachinery performance, both, towards higher pressures and temperatures, leads to high thermal-loads of specific components and can critically affect mechanical integrity. In the particular case of rotating-disk configurations, like the back-side of wheels or in cavities, a very efficient way for cooling is jet impingement. An example for this situation are high pressure-ratio turbochargers, where cooling of the impeller disk (back wall) is introduced to achieve tolerable thermal loads. From the physical point of view, jet impingement on a rotating wall generates an unsteady heat transfer situation. On the other end, accurate values of time-averaged temperatures would be sufficient for design purposes. In general, obtaining circumferentially time-averaged solutions requires transient analysis of the conjugate heat transfer (CHT) process to account for the mean effect of jet cooling on solids. Such analysis is computationally expensive, due to the difference in information propagation time-scale for the solid and the fluid. In this paper, a new approach to directly compute circumferentially time-averaged (i.e., steady-state) temperature distributions for rotating-disk CHT problems is presented based on an adaption of the well known fluid-fluid mixing plane approach.
Gender assignment strategies and L1 effects in the elicited production of mixed Spanish-Basque DPs

This paper investigates the strategies involved in gender assignment in Spanish-Basque mixed Determiner Phrases (DPs) with a gendered Spanish determiner (el M /la F) and a Basque ungendered noun. Previous studies on Spanish-Basque mixed DPs have revealed conflicting results regarding the determining factor affecting gender assignment, namely, phonological ending vs. analogical gender. We designed a forced-switch elicitation task in order to elicit mixed DPs with a Spanish determiner and a Basque noun (controlled for both phonological vs. analogical cues). Thirty highly proficient Spanish-Basque bilinguals with different profiles and socio­linguistic backgrounds participated in the study. Three cues were significant in the selection of the Spanish M/F determiner: the analogical gender and two phonological cues, the word ending and the root ending of the Basque noun. Further statistical analyses revealed participants’ L1 as a strong factor in the variability attested: bilinguals with Spanish as (one of) their L1(s) rely predominantly on the analogical criterion, whereas speakers with only Basque as L1 follow mainly the phonological criterion. Overall, this study provides an explanation for the previous conflicting results and highlights the fact that bilinguals may use different strategies depending on their bilingual profile and the morpho-phonological properties of the languages in contact.
The Changing Role of Foreign Investors in Tokyo Stock Price Formation

Abstract Recent research suggests that foreign investors improve the informational efficiency of national stock markets. We examine how foreign investors contribute to efficiency. We model the influence of domestic and foreign investors' trades on the efficient price of Japanese stocks over 39 years. Our results show that foreign investors trade at an information advantage over domestic investors, and this advantage has increased since around 2000. We find this is due to a substantial increase in the importance of global stock price and exchange rate information in stock price formation. Our results suggest that foreign investors have made more use of global information in trading Japanese equities as the influence of international financial factors on the domestic market has increased over recent decades.
Isolation, Identification and Analysis of Probiotic Characteristics of Lactobacillus spp. from Regional Yoghurts from Surendranagar District, Gujarat

Background: Probiotics are good bacterial species. They confer health benefits to the human gastrointestinal tract. Lactobacillus spp. and Bifidobacterium are the most commonly used probiotic strains.Methods: In the present study; Lactic acid bacteria were isolated from the different regional yoghurt sample (masti, lite and household fermented dahi). Identification and analysis was done by different morphological characterization, biochemical tests and probiotic characterization like pH tolerance, bile salt tolerance, temperature tolerance and NaCl tolerance etc. of isolated lactobacillus spp.Result: This study indicated that Lactobacillus species from yogurt samples have potential probiotic properties.
Strategic Tillage Effects on Crop Yields, Soil Properties, and Weeds in Dryland No-Tillage Systems

Long-term no-till (NT) systems in the semiarid central Great Plains of the United States require flexible management strategies to minimize the impacts of herbicide resistant (HR) kochia (Kochia scoparia L.) and tumble windmill grass (Chloris verticillata Nutt.) as well as nutrient stratification on soil and crop productivity. This study examined strategic tillage (ST) to control HR weeds and improve crop yields in an otherwise long-term NT cropping system. Treatments were three crop rotations: (1) continuous winter wheat (Triticum aestivum L.) (WW); (2) wheat-fallow (WF); and (3) wheat-grain sorghum (Sorghum bicolor L.)-fallow (WSF); as main plots. Subplots were reduced tillage (RT), continuous NT, and ST of NT. Results showed ST and RT treatments provided significant control of HR weeds. Soil water content at wheat planting was significantly less with RT compared to NT or ST. Strategic tillage did not affect wheat or grain sorghum yields, but RT decreased sorghum yields by 15% compared to NT. Increasing cropping intensity reduced wheat yields. Strategic tillage reduced bulk density and had no effect on aggregate size distribution or mean weight diameter (MWD) compared to NT though RT reduced the proportion of large macroaggregates and MWD. Similarly, ST compared to NT had no effect on soil organic carbon (SOC) or nitrogen (N) concentrations. Soil phosphorus (P) was not different among the tillage treatments though RT increased potassium (K) concentration near the soil surface. The SOC, MWD, and micronutrient availability were greatest with WW though it had significantly lower pH and K concentration. Our results suggest ST could provide a mitigation option for HR weeds in NT systems with little impact on crop yields and soil properties.
Pre‐instrumental summer precipitation variability in northwestern Greece from a high‐elevation Pinus heldreichii network

The spatiotemporal variability of precipitation is of vital importance to Mediterranean ecology and economy, but pre‐instrumental changes are not well understood. Here, we present a millennial‐length June–July precipitation reconstruction derived from a network of 22 Pinus heldreichii high‐elevation sites in the Pindus Mountains of northwestern Greece. Tree‐ring width chronologies from these sites cohere exceptionally well over the past several hundred years (r1467–2015 = 0.64) revealing coherence at inter‐annual to centennial timescales across the network. The network mean calibrates significantly against instrumental June–July precipitation over the past 40 years (r1976–2015 = 0.71), even though no high‐elevation observational record is available representing the moist conditions at the treeline above 1,900 m a.s. l. For the final reconstruction, the instrumental target data are adjusted to provide realistic estimates of high‐elevation summer rainfall back to 729 CE. The reconstruction contains substantially more low‐frequency variability than other high‐resolution hydroclimate records from the eastern Mediterranean including extended dry periods from 1,350 to 1,379 CE (39 ± 4.5 mm) and 913 to 942 (40 ± 8.4 mm), and moist periods from 862 to 891 (86 ± 11 mm) and 1,522 to 1,551 (80 ± 3.5 mm), relative to the long‐term mean of 61 mm. The most recent 30‐year period from 1986 to 2015 is characterized by above average June–July precipitation (73 ± 2 mm). Low‐frequency changes in summer precipitation are likely related to variations in the position and persistence of storm tracks steering local depressions and causing extensive rainfall (or lack thereof) in high‐elevation environments of the Pindus Mountains.
The Contribution of Knowledge Management Practices for Developing Dynamic Capabilities: Exploring Routines in the Services Sector

Abstract The purpose of this manuscript is to identify the contribution of knowledge management practices for developing dynamic capabilities in a service sector company. For this case study, the dataset comprised ten interviews with company employees and managers and was analyzed using a pattern-matching technique based on the literature. The main findings were that the company mapped its organizational actions in each process of knowledge management, which was the basis for the development of its dynamic capabilities. The development of such capabilities enabled the company to analyze possible applications and improve the existing routines.
Assessment of the Quality of Well Dug Water Samples in Nigeria and Their Suitability for Drinking and Irrigation Purposes

The quality of well-dug water for drinking and irrigation purposes must be measured as part of a sustainable groundwater analysis. The study aimed to assess water quality and to evaluate their usefulness for drinking and irrigation, using the Drinking Water Quality Index (DWQI) and Irrigation Water Quality Index (IWQI). To achieve this, standard methods were used for the determination of physicochemical parameters of the water samples, while using models (ESP, SSP, SAR, MAR, KR, TDS, and EC) to ascertain their suitability for drinking and irrigation. According to the findings, the determined Physico-chemical parameters were compared to standard limits and found desirable because they were within the guidelines. Low pH (6.4-7), total dissolved solids (106–130 mg/L), total hardness (42–56 mg/L), calcium (3.5–8.3 mg/L), magnesium (1.13.6 mg/L), nitrate (4.6–16 mg/L), chloride (1.8–3.1), and sulphate (14–15. mg/L) in the well samples were found to be the key cause of the low DWQI and IWQI value at these sites. The results also depicted that all the water samples are of exceptional quality (excellent).
Enhancing Student Self-Reflection in College-Level Diversity Courses

Abstract Diversity-centered courses may prompt student biases and misconceptions in unique ways. Studies have illustrated that developing an understanding of why value-laden content is difficult for students to learn is paramount to effective teaching. Research has indicated that self-reflection has a positive effect on academic growth. This study explores the development and implementation of an effective teaching strategy prompting self-reflection by students in diversity-centered courses. More specifically, the authors analyze the results of a pilot study and offer recommendations for replication in other courses, as well as implications for the broader community of multicultural education.
Adsorption Studies of Aqueous Solutions of Methyl Green for Halloysite Nanotubes: Kinetics, Isotherms, and Thermodynamic Parameters

Halloysite nanotubes (HNTs) were used to successfully remove methyl green dye from water. The HNTs were also characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Si and Al magic angle spinning nuclear magnetic resonance with magic angle spinning (MAS-NMR) and nitrogen adsorption at 77 K. SEM and TEM micrographs showed that HNTs have lengths of 0.2 to 1.5 μm, an outer diameter of 100 nm and lumen of 20 nm wide. X-ray diffraction patterns showed that the HNTs were totally dehydrated. HNTs may be regarded as a mesoporous material with a pore size distribution in the range of 1.5-150 Å and specific surface area of 34.49 m⋅g. The adsorption kinetics and equilibrium data of the dye, initial dye concentration, temperature, pH and contact time effect on removal efficiency were also investigated. Pseudo-first-order, pseudo-second-order, intraparticle diffusion and Elrich models were evaluated in order to determine the rate parameters. The adsorption rate followed pseudo-second-order kinetic model. Adsorption revealed that methyl green was adsorbed as the Langmuir isotherm model describes and the maximum adsorption capacity of the HNTs was achieved (185 mg⋅g), being an efficient adsorbent for methyl green
Effect of inulin concentration on physicochemical properties and antioxidant activity of date powders obtained by hot-air tray dryer

In the present study, it was aimed to produce free-flowing date powders using various levels of inulin as drying-aid agent (10, 20, 30, 40, and 50%) through hot-air drying at 60°C for 24 h. Effects of different inulin ratios on physicochemical properties of date powders were investigated. This is the first report which evaluated the suitability of this prebiotic carbohydrate as drying-aid agent to fabricate date powders. Inulin addition yielded date powders with high flowability. On the other hand, contents of bioactive compounds including total phenolics, flavonoids, and condensed tannins of date powders decreased significantly (P<0.05) as the inulin concentration increased from 10% to 50% Accordingly, DPPH-radical inhibition capacities reduced in date powders containing higher levels of inulin. Furthermore, significant correlations were detected between bioactives contents and antioxidant activity of date samples. The results showed that free-flowing date powders with improved prebiotic content may be produced by incorporating inulin up to ratio of 50% and used as sugar substitute in different food products. Abstract
Entropy scrutiny of couple stress nanoliquid flow with slip and convective conditions in an upright microchannel

This article delves into the steady flow of couple stress nanoliquid by applying the magnetic field in conjunction with the resultant entropy produced in an upright microchannel which is immersed with Titanium-dioxide nano-sized particles with water being base fluid. Both the walls facilitate injection and suction of the fluid. The entropy generated and Bejan number is figured out by making use of velocity and temperature profiles. The coalesce sequel of nanoparticle volume fraction, magnetic field, linear thermal radiation and buoyancy force along with heat source/sink are taken into account. The equations governing the fluid flow are formulated under the impact of viscous dissipation and the numerical computations of the non-linear equations are made by using the shooting technique together with Runge–Kutta–Fehlberg fourth-fifth scheme. The effect of the viscous dissipation, Grashof number, Hartmann number and couple stress parameter on nanoliquid flow and thermal distributions are thrashed out and exposed graphically. The results indicate that peak values of couple stress parameter diminishes the velocity, temperature and entropy profile whereas amplifies the Bejan number. Also lower values of Hartmann number and nanoparticle volume fraction promotes the flow and higher values of heat source parameter and Peclet number exhibits augmentation in the thermal profile.
CH4 AND CO TOTAL COLUMNS FROM SCIAMACHY: COMPARISONS WITH TM3

The methane (CH4) and carbonmonoxide (CO) total columns retrieved from SCIAMACHY’s near-infrared channel 8 have been compared to measurements from the MOPITT satellite instrument, and with model calculations by the chemistry transport model TM3. Since the operational products for these species still deviate from the expected levels by orders of magnitude, results from independent scientific algorithms are presented here. The total columns from each of these scientific algorithms are similar, but significant differences still remain. First results show that both monthly averaged and daily data show good agreement with TM3 model calculations and measurements from the MOPITT satellite.
Thermal crystallization of sputter-deposited amorphous Ge films: Competition of diamond cubic and hexagonal phases

Following our previous studies on crystallization induced by electron irradiation, we have investigated the crystallization of sputter-deposited amorphous germanium films by heat treatments. On continuous heating, samples aged for 3 days and 4 months at room temperature crystallized at 500°C to form coarse spherical particles of a hexagonal structure, of about 100 nm in diameter, whereas samples aged for 7 months turned to homogeneous nanograins of the diamond cubic structure at 600°C. When the films aged for 4 months at room temperature were annealed at 350°C for 2 h and then heated, they crystallized at 550°C to form a mixture of the two microstructures, and those annealed at 350°C and further at 500°C for 1 h crystallized at 600°C mostly to nanograins. Crystallization by electron irradiation at 350°C to 4-month-aged samples has also been studied. With increasing annealing time at 350°C, coarse particles of a hexagonal structure ceased to appear, and were replaced by fine nanograins of the diamond cubic.
Participatory structure of planning and cognitive task complexity in L2 oral performance: a processing perspective

ABSTRACT This study investigates the impact on L2 oral performance of participatory structure of strategic planning (individual vs. collaborative pair planning) and task complexity (simple vs. complex tasks) defined according to the number of elements involved. It also explores individual and collaborative planners’ planning behaviours prior to simple vs. complex tasks. Forty-eight Iranian intermediate learners were assigned to one of the two conditions: individual planning (IndP) and collaborative planning in pairs (ColP) groups. Participants then engaged in planning before completing four oral tasks: two simple and two complex. After each task, they were interviewed about their planning behaviours. Quantitative results showed that fluency and complexity improved as a function of task complexity and collaborative planning. The impact of collaborative planning was greater on the complex tasks in all measures except accuracy. Qualitative analysis revealed that, compared to the individual planners, the collaborative planners used more planning behaviours associated with schematic planning, cognitive planning and content formulation prior to the complex tasks. The findings highlight that careful task design (here, selecting complex tasks with collaborative planning) has real potential to help enhance learners enhance their L2 oral production.
Serial Procalcitonin Levels and Bacterial Etiology in Hospitalized Patients with Community-Acquired Pneumonia

Pierre Ankomah Massachusetts General Hospital Suzanne M McCluskey Massachusetts General Hospital Michael Abers Massachusetts General Hospital Benjamin Bearnot Massachusetts General Hospital Phillip Schuetz University of Basel, Kantonsspital Aarau Victor Chiappa Massachusetts General Hospital Jatin M Vyas Massachusetts General Hospital Michael K. Mansour (  mkmansour@mgh.harvard.edu ) Massachusetts General Hospital
Reaching more customers, delving into the unknown

Organizations have ineffective information management practices, and improper analytical methods and tools for innovations. As a consequence, customers are not appropriately reached, decision-making is compromised and –unfortunately- most innovations don’t achieve the desired results. In this sense and through the study of Disruptive Innovation Theory (DIT) and Job To Be Done Theory (JTBDT) –developed by Harvard Professor Clayton Christensen- it is pointed out that a novel universe of value is created for small firms and incumbents in their innovation environments. In other words, “unrevealed” areas of opportunities (or Disrupted Innovation Theory, DIT) and “undisclosed” products (Job-To-Be-Done Theory, JTBDT) take place, allowing a wide range of new organizational and social development, not only a different/better/worse known market or product. This result in an additional distinction between two antagonistic fields that coexist in the current business context: the known field (referred to sustaining innovations) and the unknown one (connected with DI and JTBD). Managers are urged to understand their differences, and theories/tools must be reconsidered to manage those opposite worlds. Therefore, the hypothesis of this investigation –which was corroborated- states that a deep understanding of DIT and JTBDT can help to reach more customers with adapted products, and to wider develop organizations and markets. It was utilized a qualitative methodology, with an exploratory descriptive study. The design was non-experimental and -within them- transversal, since the information was collected at a given moment of time.
Exploring ELT Students’ Professional Identity Formation through the Perspectives of Critical Incidents

This study aims at exploring the professional identities of six ELT students through the lens of critical incidents. For the sake of this aim, six ELT students took part in this research at an Anatolian High School in 2018-2019 spring semester. The teaching practicum process was conducted from April to mid of May 2019, once a week over six-week practicum. The main data collection of this study was the Critical Incident Questionnaire (CIQ). Additionally, two questions were asked to the participants to evaluate their actual and designated professional identities. The first question was answered before the practicum and the second one was answered at the end of the practicum process. The results showed that some internal and external factors influenced their professional identity. Additionally, it was found that critical incidents could be used to spot the changes in the participants’ professional identity formation processes. Results of the study indicated that not only negative but also some positive critical incidents contributed to the participants’ professional identity formation. As a result of the encountered incidents that influenced their formation of identities, it was observed that the actual identities of four students changed from positive to negative at the end of the process. Correspondingly, the findings of this study put forward that how the participants explored their identity formation process through the critical incidents.