Miracle-dz/UniFAR-FTUs huggingface dataset:
Ecotourism in North East India – A Marketing Alternative in the Next Millennium∗

The paper argues that North East India is rich in ecotourism resources but is lacking in infrastructure and a strategic outlook. The small share of the region in the tourism market is disproportionate to its potential. It is high time that North East India learns from experiences all over the world and aims at sustainable development of tourism as a marketing solution. The North East has a negative reputation, but ecotourism can provide a silver lining. The paper argues that the ecotourism model is ideal for North East India.
Coupling and tuning of modal frequencies in direct current biased microelectromechanical systems arrays

Understanding the coupling of different modal frequencies and their tuning mechanisms has become essential to design multi-frequency MEMS devices. In this work, we fabricate a MEMS beam with fixed boundaries separated from two side electrodes and a bottom electrode. Subsequently, we perform experiments to obtain the frequency variation of in-plane and out-of-plane mechanical modes of the microbeam with respect to both DC bias and laser heating. We show that the frequencies of the two modes coincide at a certain DC bias, which in turn can also be varied due to temperature. Subsequently, we develop a theoretical model to predict the variation of the two modes and their coupling due to a variable gap between the microbeam and electrodes, initial tension, and fringing field coefficients. Finally, we discuss the influence of frequency tuning parameters in arrays of 3, 33, and 40 microbeams, respectively. It is also found that the frequency bandwidth of a microbeam array can be increased to as high as 25 kHz for a 40 microbeam array with a DC bias of 80 V.
National Poverty Eradication Programmes in Nigeria: Problems and Prospects

Poverty is one of the forces militating against the social and economic development of Nigeria. The level of poverty in Nigeria is astronomically high and politically embarrassing considering the enormous human and mineral resources the country is endowed with and despite the huge resources successive government have committed to alleviate and or eradicate poverty, it seems no success has been achieved. This paper therefore examines the strategies that have been adopted by the various governments to alleviate poverty in Nigeria. These include, Operation Feed the Nation, Green Revolution, Better Life for Rural Women, Family Economic Advancement Programme. The study reveals among others that, all the poverty alleviation programmes have not been successful due to inadequate funding, lack of proper coordination and commitments, poor design and evaluation of programmes etc. The paper recommends that government should ensure that programmes of poverty eradication are well designed, evaluated and coordinated before they are carried out, fraudulent officials should be prosecuted to serve as deterrent to others handling poverty eradication programmes and so on.
Be rational or be emotional: advertising appeals, service types and consumer responses

Purpose – This research aims to examine the use of emotional and rational advertising appeal regarding service options that differ in terms of their experience and credence properties and exploring the moderating role of individual difference in affect intensity on the consumers’ varying reliance on rational vs emotional appeals. Design/methodology/approach – Study 1 is a 2 (service type: restaurant vs dentist) × 2 (advertising appeal: emotional vs rational) between-subjects design. In total, 137 undergraduate students took part in this study. Study 2 is a 2 (service type: airline vs hospital) × 2 (advertising appeal: emotional vs rational) between-subjects design. In total, 84 MBA students were randomly assigned to each of the experimental conditions. Study 3 is a 2 (service type: airline vs hospital) × 2 (advertising appeal: rational vs emotional appeal) × 2 (affect intensity: high vs low) between-subjects design. The sample size was 170 undergraduates. Findings – The results of the first two studies provided support that an emotional advertising appeal led to a higher purchase intention in the experience service condition, while a rational message generated higher purchase intention in the credence service condition. Study 3 showed the moderating role of individual difference in affect intensity. High affect intensity individuals reported higher levels of brand favorability than did their low affect intensity counterparts when exposed to ads using emotional appeal. Conversely, subjects showed no significant differences in the intensity of their emotional responses when exposed to rational appeals. Practical implications – Our results suggest a strong need to tailor ads to fit different service categories. An emotional appeal would be more effective for experience services, and a rational appeal would be more effective for credence services. Besides, individual traits may also need to be considered when matching the appeal to the service type. Originality/value – This study makes an important contribution to the limited existing research by providing a more comprehensive understanding of the relationship between advertising appeal and the type of service across different sub-categories, themes, individual trait and effectiveness measures. Specifically, the present research seeks to illuminate the relative effectiveness of emotional vs rational appeals in services advertising. In addition, the current research reveals new knowledge about the role that affect intensity plays in determining consumer responses to advertising.
Advancing extubation time for cardiac surgery patients using lean work design.

BACKGROUND Early extubation in select cardiac surgery patients reduces tracheal intubation times, intensive care unit length of stay, and hospital length of stay. While there is good evidence in the literature to support early extubation, there is very little published research that describes how to study and redesign processes of care to increase early extubation rates. OBJECTIVE To improve rates of early extubation by redesigning patient care processes using Lean principles to remove barriers to desired care and facilitate early extubation with guideline management. DESIGN Retrospective data analysis. SETTING Sixteen-bed intensive care unit in a mid-sized, academic community hospital. PATIENTS Four hundred four patients undergoing coronary artery bypass graft surgery, aortic valve replacement, or mitral valve replacement/repair. INTERVENTION The process of care for cardiac surgery patients, beginning with the immediate preoperative period and ending with extubation in the postoperative period, was analyzed using Lean methodologies. A value stream analysis was performed to identify waste in the process, and root causes for the largest sources of waste were identified. Hypothermia on admission to the intensive care unit, prolonged weaning using arterial blood gas results, hypertension management with pain medications and sedation medications, and delays in obtaining equipment were the primary reasons early extubation was delayed. Process redesign using Lean work design principles was implemented to eliminate these issues. MEASUREMENTS The rate of patients being extubated in fewer than 6 hours and length of intubation. RESULTS One hundred ninety-five pre-intervention subjects were compared with 171 post-intervention subjects. The pre- and post- groups did not differ in demographic predictors (Table 1). The intervention predicted extubation in<6 hours (pre-intervention 27% versus post-intervention 50%, p = 0.0001). Age, renal failure, and gender also predicted whether intubation occurred within 6 hours. The median length of intubation was lower post-intervention (pre-intervention 9.7 v post-intervention 6.1 hours, p = 0.0019) LIMITATIONS: The effect of this nonrandomized intervention could be due to other factors associated with a different care epoch. CONCLUSIONS The closely planned, coordinated, and integrated care paradigm dramatically increased the likelihood of extubation within 6 hours of arrival in the SICU.
Automatic Arabic text categorization: A comprehensive comparative study

Text categorization or classification (TC) is concerned with placing text documents in their proper category according to their contents. Owing to the various applications of TC and the large volume of text documents uploaded on the Internet daily, the need for such an automated method stems from the difficulty and tedium of performing such a process manually. The usefulness of TC is manifested in different fields and needs. For instance, the ability to automatically classify an article or an email into its right class (Arts, Economics, Politics, Sports, etc.) would be appreciated by individual users as well as companies. This paper is concerned with TC of Arabic articles. It contains a comparison of the five best known algorithms for TC. It also studies the effects of utilizing different Arabic stemmers (light and root-based stemmers) on the effectiveness of these classifiers. Furthermore, a comparison between different data mining software tools (Weka and RapidMiner) is presented. The results illustrate the good accuracy provided by the SVM classifier, especially when used with the light10 stemmer. This outcome can be used in future as a baseline to compare with other unexplored classifiers and Arabic stemmers.
Expression of PRX36, PMEI6 and SBT1.7 is controlled by complex transcription factor regulatory networks for proper seed coat mucilage extrusion

Mucilage secretory cells (MSC) form an intriguing cell layer important for seed germination. In Arabidopsis thaliana, several master transcription factors (TFs) and “actor” proteins have already been identified as key players for seed coat differentiation including epidermal cell formation, mucilage production and extrusion. The regulation of the genes coding for MSC cell wall “actor” proteins by TFs needs to be better established. Here, the expression and the regulation of 3 known actors (PRX36, PMEI6, SBT1.7) and 2 additional putative actors (PRX56, DIR12) have been analyzed in T-DNA mutants affected in master TFs (ap2, egl3/gl3, gl2, myb5, tt8, ttg1, ttg2 and luh1/mum1). Genes with somehow similar function are differentially regulated and conversely, genes with different functions are regulated in similar manner.
Combining Clustering Algorithms for Provide Marketing Policy in Electronic Stores

One of the main challenges of electronic market is how to attract customers as various products and customers’ preferences effect widely on it. In this paper, we have started to categorize electronic markets customers using k-means, En, Farthest first algorithms to determine marketing policies and customer satisfaction and indicated that each algorithm either cover the weakness of cluster analyzing of other algorithms for some customers or integrated data of all algorithm analyses which provided detailed results of customers’ behavioral methods and its relation with their shopping basket could finally lead us to more income and increased productivity using obtained analyses.
Reconstruction of dielectric and velocity profiles in pipelines through an electromagnetic inverse scattering technique

An electromagnetic method is proposed for the retrieval of dielectric parameters and velocity profiles inside pipelines. It is based on the solution of an inverse scattering problem for cylindrical configurations. An axially moving multilayer elliptic cylinder is assumed. Relativistic velocities can be considered, too. The measurement of the field vectors is assumed to be performed around the cylinder in a given observation domain. The related inverse problem is formulated through series expansions in the spatial domain in which the dielectric properties and velocities of the various layers are the problem unknowns. The resulting equations are discretized and the obtained ill-posed algebraic system is recast as an optimization problem and solved by using the Artificial Bee Colony method, which is a stochastic optimization method. The paper includes an outline of the direct scattering formulation for the multilayer elliptic cylinder and a detailed description of the considered inverse problem. Several numerical results are reported in order to preliminary assess the capabilities and limitations of the proposed approach.
Trabecular bone volume fraction mapping by low‐resolution MRI

Trabecular bone volume fraction (TBVF) is highly associated with the mechanical competence of trabecular bone. TBVF is ordinarily measured by histomorphometry from bone biopsies or, noninvasively, by means of high‐resolution microcomputed tomography and, more recently, by micro‐MRI. The latter methods require spatial resolution sufficient to resolve trabeculae, along with segmentation techniques that allow unambiguous assignment of the signal to bone or bone marrow. In this article it is shown that TBVF can be measured under low‐resolution conditions by exploiting the attenuation of the MR signal resulting from fractional occupancy of the imaging voxel by bone and bone marrow, provided that a reference signal is available from a marrow volume devoid of trabeculation. The method requires accurate measurement of apparent proton density, which entails correction for various sources of error. Key among these are the spatial nonuniformity in the RF field amplitude and effects of the slice profile, which are determined by B1 field mapping and numerical integration of the Bloch equations, respectively. By contrast, errors from variations in bone marrow composition (hematopoietic vs. fatty) between trabecular and reference site are predicted to be small and usually negligible. The method was evaluated in phantoms and in vivo in the distal radius and found to be accurate to 1% in marrow volume fraction. Finally, in a group of 12 patients of varying skeletal status, TBVF in the calcaneus was found to strongly correlate with integral bone mineral density of the lumbar vertebrae (r2 = 0.83, p < 0.0001). The method may fail in large imaging objects such as the human trunk at high magnetic field where standing wave and RF penetration effects cause intensity variations that cannot be corrected. Magn Reson Med 46:103–113, 2001. © 2001 Wiley‐Liss, Inc.
Optimal coordinated wind-hydro bidding strategies in day-ahead markets

Wind and hydro technologies represent an important part of the electricity generation sector. However, there have been few detailed studies that have investigated the synergies resulting from their combined operation. To address that, we formulate three optimization models where wind and reversible hydro technologies bid in a day-ahead market. The bidding strategies are divided into three categories: 1) separate wind and reversible hydro offers without a physical connection between them, 2) separate wind and reversible hydro offers with a physical connection to store by pumping the wind energy surplus, and 3) single wind and reversible hydro offers with a physical connection. Risk is considered in the models by means of the conditional value at risk (CVaR). A comparison of the models and relevant conclusions are drawn from an illustrative case study of the Iberian day-ahead electricity market.
A distinct class of vesicles derived from the trans‐Golgi mediates secretion of xylogalacturonan in the root border cell

Root border cells lie on the surface of the root cap and secrete massive amounts of mucilage that contains polysaccharides and proteoglycans. Golgi stacks in the border cells have hypertrophied margins, reflecting elevated biosynthetic activity to produce the polysaccharide components of the mucilage. To investigate the three-dimensional structures and macromolecular compositions of these Golgi stacks, we examined high-pressure frozen/freeze-substituted alfalfa root cap cells with electron microscopy/tomography. Golgi stacks in border cells and peripheral cells, precursor cells of border cells, displayed similar morphological features, such as proliferation of trans cisternae and swelling of the trans cisternae and trans-Golgi network (TGN) compartments. These swollen margins give rise to two types of vesicles larger than other Golgi-associated vesicles. Margins of trans-Golgi cisternae accumulate the LM8 xylogalacturonan (XGA) epitope, and they become darkly stained large vesicles (LVs) after release from the Golgi. Epitopes for xyloglucan (XG), polygalacturonic acid/rhamnogalacturonan-I (PGA/RG-I) are detected in the trans-most cisternae and TGN compartments. LVs produced from TGN compartments (TGN-LVs) stained lighter than LVs and contained the cell wall polysaccharide epitopes seen in the TGN. LVs carrying the XGA epitope fuse with the plasma membrane only in border cells, whereas TGN-LVs containing the XG and PGA/RG-I epitopes fuse with the plasma membrane of both peripheral cells and border cells. Taken together, these results indicate that XGA is secreted by a novel type of secretory vesicles derived from trans-Golgi cisternae. Furthermore, we simulated the collapse in the central domain of the trans-cisternae accompanying polysaccharide synthesis with a mathematical model.
Characteristics of Youth Presenting for Weight Management: Retrospective National Data from the POWER Study Group.

BACKGROUND There are no existing multisite national data on obese youth presenting for pediatric weight management. The primary aim was to describe BMI status and comorbidities among youth with obesity presenting for pediatric weight management (PWM) at programs within the Pediatric Obesity Weight Evaluation Registry (POWER). METHODS Data were collected from 2009-2010 among 6737 obese patients ages 2-17. Patients were classified in three groups by BMI (kg/m(2)) cutoffs and percent of the 95th percentile for BMI: (1) obesity; (2) severe obesity class 2; and (3) severe obesity class 3. Weighted percentages are presented for baseline laboratory tests, blood pressure, and demographics. Generalized logistic regression with clustering was used to examine the relationships between BMI status and comorbidities. RESULTS Study youth were 11.6 ± 3.4 years of age, 56% female, 31% black, 17% Hispanic, and 53% publicly insured. Twenty-five percent of patients had obesity (n = 1674), 34% (2337) had severe obesity class 2, and 41% (2726) had severe obesity class 3. Logistic regression revealed that males (odds ratio [OR], 1.8; 95% confidence interval [CI], 1.5-2.0), blacks (OR, 1.7; 95% CI, 1.5-2.0), age <6 years (OR, 2.0; 95% CI, 1.5-2.6), and public insurance (OR, 1.8; 95% CI, 1.5-2.0) had a higher odds of severe obesity class 3. Severe obesity class 3 was associated with higher odds of laboratory abnormalities for hemoglobin A1c (OR, 1.7; 95% CI, 1.3-2.2), alanine aminotransferase ≥40 U/L (OR, 1.9; 95% CI, 1.3-2.6), and elevated systolic blood pressure (OR, 2.5; 95% CI, 2.0-3.0). CONCLUSIONS Youth with obesity need earlier access to PWM given that they are presenting when they have severe obesity with significant comorbidities.
Integration of clinical and hemodynamic parameters in the prediction of long-term survival in patients with pulmonary arterial hypertension.

BACKGROUND Current management guidelines for pulmonary arterial hypertension (PAH) recommend a treatment choice based primarily on World Health Organization (WHO) functional class. This study was designed to assess how the incorporation of readily obtained clinical and test-based information may significantly improve the prediction of outcomes over functional class alone. METHODS Clinical and hemodynamic variables were assessed in 484 consecutive patients presenting with WHO group 1 PAH. The primary outcome measure was time to all-cause mortality over 5 years from the index presentation (data available in all). Follow-up was censored at the time of lung or heart/lung transplant in 21 patients or at 5 years. Predictors of mortality were assessed sequentially using Cox models, with the step-wise incorporation of clinical variables, echocardiographic, and catheterization findings. Results were further compared with the REVEAL (Registry to Evaluate Early and Long-term Pulmonary Arterial Hypertension Disease Management) prediction score. RESULTS Overall median survival was 237 weeks (95% CI, 196-266), corresponding to 1-year, 3-year, and 5-year survival rates of 81.1% (77.0, 84.7), 61.1% (56.5, 65.3), and 47.9% (43.2, 52.4), respectively. The prediction of mortality was improved incrementally by incorporating clinical and echocardiographic measures with a concordance index (c-index) of 0.84 compared with that of 0.60 with functional class alone. The REVEAL prediction score was validated independently in this cohort to predict both 1-year and 5-year mortality. It had a prediction c-index of 0.71. CONCLUSIONS The integration of routine PAH clinical (predominantly noninvasive) parameters predicts long-term outcome better than functional class and, hence, should be incorporated into medical management decisions.
Robust control of Scara manipulator

The paper presents mathematical modelling of Scara manipulator. The simulation was carried out in Matlab. In the first part of the article we present derivation of the manipulator dynamic equations. Then we describe the implementation of control law, models of engines and other components necessary to carry out the simulation. Finally, we present the results of simulation of the analyzed manipulator, by means of classic and robust control law.
Human Resource Management and Technology Transition for Firm Competitiveness in Nigeria's telecommunication industry

This paper addresses human resource management technology transition as a key strategy in today’s competitive business environment focusing on the telecommunication industry in Nigeria. Our theoretical framework is based on previous Human Resource Management (HRM) and Human Resource Information System (HRIS) studies where the contributing role of HRIS to competitiveness is measured by the compliance and application level of its functions to HR functionalities. Copies of survey questionnaire for administration targeted at HR managers in the industry were sent to five corporate Headquarters of the different companies operating in Nigeria with a response rate of 61.5%. We found from this study that HRIS functions have a relationship with HRM functionalities; that the independent variables (strategic integration, forecasting and planning, human resources analysis, and communication and integration) have no relationship with human resource functionalities; and that the dependent variables (performance development, knowledge management, and records and compliance) which are dimensions of human resources information systems have a relationship with human resources functionalities. Human Resource Managers in Nigeria must acquire the new technological skills and competencies that will result in their emerging new role of business partners that is supportive of overall corporate strategy for competitiveness.