PENGARUH EFEKTIVITAS KEPEMIMPINAN, PENDIDIKAN PELATIHAN DAN PENGEMBANGAN KARIR TERHADAP KINERJA DOSEN UNIVERSITAS RIAU KEPULUAN BATAM

Penelitian bertujuan untuk mendeskripsikan, menganalisis dan menemukan pengaruh Efektivitas Kepemimpinan, Pendidikan Pelatihan dan Pengembangan Karir terhadap Kinerja Dosen di Universitas Riau Kepulauan Batam. Penelitian merupakan penelitian dengan metode kuantitatif menggunakan Path Analysis. Jumlah populasi adalah sebanyak 166 responden yang keseluruhannya adalah merupakan dosen tetap Universitas Riau Kepulauan Batam dan sampel penelitian dengan menggunakan rumus slovin maka didapat sebanyak 117 orang responden dengan Teknik Profotionate random sampling. Hasil Pengujian Hipotesis Penelitian menunjukkan bahwa : 1) Terdapat pengaruh langsung efektivitas kepemimpinan terhadap kinerja dosen, 2) Terdapat pengaruh langsung pendidikan pelatihan terhadap kinerja dosen, 3) Terdapat pengaruh langsung pengembangan karir terhadap kinerja dosen 4) terdapat pengaruh langsung efektivitas kepemimpinan terhadap pengembangan karir, 5) Terdapat pengaruh langsung pendidikan pelatihan terhadap pengembangan karir, 6) Terdapat pengaruh langsung efektivitas kepemimpinan terhadap pendidikan pelatihan, 7) Tidak terdapat pengaruh langsung positif Efektivitas Kepemimpinan terhadap kinerja dosen melalui Pengembangan Karir, 8) Tidak terdapat pengaruh langsung positif Pendidikan Pelatihan terhadap Kinerja dosen melalui Pengembangan Karir

Controlling the likelihood of rogue waves in an optically injected semiconductor laser via direct current modulation

Extreme and rare events are nowadays the object of intensive research. Rogue waves are extreme waves that appear suddenly in many natural systems, even in apparently calm situations. Here we study numerically the rogue wave dynamics in an optically injected semiconductor laser with external periodic forcing that is implemented via direct modulation of the laser pump current. In the region of optical injection parameters where the laser intensity is chaotic and occasional ultrahigh pulses occur, our aim is to control the system by applying a weak modulation. We find that for an adequate range of frequency and amplitude parameters, the modulation can completely suppress the extreme pulses. We also show that the interplay between modulation and an external source of noise can significantly modify their probability of occurrence. These results can motivate a range of experimental and theoretical investigations in other natural systems.Peer ReviewedPostprint (published version

Novel PID Controller on Battery Energy Storage Systems for Frequency Dynamics Enhancement

Frequency dynamics is one of the important aspects of power system stability. From the frequency dynamics, the operator could plan how is the reliability of the electricity. The frequency can be maintained by controlling the balance between load demand and generation. To maintain the balance of the generation, the governor is playing an important role to increase the speed of the turbine and enhance the generating capacity of the generator (ramp-up). However, as the speed of the governor is slower than the increasing load demand, in the sub-transient area, the frequency may experience higher overshoot. Hence, it is important to add additional devices such as battery energy storage systems to enhance the frequency dynamics response in the sub-transient area. One of the important parts of storage is the controller. The controller must make sure the storage charges and discharge energy are in the sub-transient area. Hence PID controller can be the solution to make the storage operate optimally This paper proposed a novel PID controller on battery energy storage systems (BESS) to enhance the dynamics performance of frequencies. The five-area power system is used as the test system to investigate the efficacy of the proposed novel idea. Time domain simulation is investigated to see the improvement of the frequency dynamics response. From the simulation results, it is found that adding a PID controller on BESS could enhance the BESS response and result in frequency dynamics response improvement

Resveratrol, a new biomarker of moderate wine intake?

In a recent study published in the British Journal of Nutrition, Spencer et al. (1) reviewed the strengths and the limitations of the biomarkers of dietary polyphenol intake, since nutritional biomarkers may be a better measure of dietary exposure than self-reported dietary data. These authors identified the criteria that must be considered in the development of such biomarkers as the following..

Fish ecology in Lake Banyoles (NE Spain): a tribute to Ramon Margalef

Lake Banyoles is the second largest lake in the Iberian Peninsula and due to this relative uniqueness, its peculiar geological origin, and its considerable age attracted the early attention of the late Professor Ramon Margalef. One of the first papers by Margalef was on the biota of Lake Banyoles and two of the first four Ph.D. theses that he supervised were about the limnology of this lake. Unfortunately, the uniqueness of this lake also implied that it was the first place of introduction into the Iberian Peninsula of several exotic fish species, early in the XXth Century and nowadays the lake fish assemblage is dominated by invasive species, and some native ones have been extirpated. Although the limnological studies in Lake Banyoles were pioneering within the Iberian Peninsula, studies on fish ecology of the lake did not start until 1989. Thereafter, four Ph.D. theses have been completed on different aspects of the fish assemblages of Lake Banyoles. The aim of this paper is to provide a short overview of this research, largely brought about by the considerable limnological information previously available for this lake, thanks to the insightful, pioneering work of Professor Margalef.El lago de Banyoles es el segundo mayor lago de la Península Ibérica y debido a su relativa singularidad, su peculiar origen geológico y su considerable edad atrajo la atención temprana del fallecido profesor Ramon Margalef. Uno de las primeras publicaciones de Margalef fue sobre la biota del lago de Banyoles y dos de las primeras cuatro tesis doctorales que dirigió fueron sobre la limnología del lago. Desgraciadamente, la singularidad de este lago implicó también que fue el primer lugar de introducción en la Península de varias especies exóticas de peces, a principios del siglo XX, y actualmente la comunidad de peces está dominada por especies invasoras y algunas nativas han sido extirpadas. Aunque los estudios limnológicos en el lago fueron pioneros en la península ibérica, la ecología de peces no se empezó a estudiar hasta 1989. Posteriormente, se han completado cuatro tesis doctorales sobre distintos aspectos de las comunidades de peces del lago de Banyoles. El objetivo de este artículo es proporcionar una breve sinopsis de estas investigaciones, que en gran medida surgieron de la considerable información limnológica existente sobre el lago, gracias al trabajo pionero y visionario del profesor Margalef

Una nueva estampilla sobre ánfora púnico-ebusitana hallada en ses Païsses d’Artà (Mallorca): Nueva luz sobre una distintiva forma ebusitana de estampillado

Here we present the discovery in the Talayotic village of ses Païsses d’Artá (Majorca, Spain) of a fragment of Punic amphora, made in Ibiza, with a new stamp-seal impression. The joint study of the stamp-seal and the context and typology of the amphora allows us to link the new find to other Western amphoric stamp-seals and to analyze all of them in their historical framework (around the destruction of Carthage in 146 BC) in order to advance in the understanding of the origin and function of these particular techniques.Se presenta el hallazgo, en el poblado talayótico mallorquín de ses Païsses d’Artá, de un fragmento de ánfora púnica de fabricación ebusitana con estampilla. El estudio conjunto de la estampilla y del contexto y tipología de su soporte permite poner el nuevo testimonio en relación con otros sellos anfóricos occidentales y analizarlos en su marco histórico (a situar en torno a la destrucción de Cartago en el 146 a. C.), avanzando en la comprensión del origen y función de estos particulares procedimientos

Corrosion Assessment in Reinforced Concrete Structures by Means of Embedded Sensors and Multivariate Analysis-Part 1: Laboratory Validation

[EN] Reinforced Concrete Structures (RCS) are a fundamental part of a country's civil infrastructure. However, RCSs are often affected by rebar corrosion, which poses a major problem because it reduces their service life. The traditionally used inspection and management methods applied to RCSs are poorly operative. Structural Health Monitoring and Management (SHMM) by means of embedded sensors to analyse corrosion in RCSs is an emerging alternative, but one that still involves different challenges. Examples of SHMM include INESSCOM (Integrated Sensor Network for Smart Corrosion Monitoring), a tool that has already been implemented in different real-life cases. Nevertheless, work continues to upgrade it. To do so, the authors of this work consider implementing a new measurement procedure to identify the triggering agent of the corrosion process by analysing the double-layer capacitance of the sensors' responses. This study was carried out on reinforced concrete specimens exposed for 18 months to different atmospheres. The results demonstrate the proposed measurement protocol and the multivariate analysis can differentiate the factor that triggers corrosion (chlorides or carbonation), even when the corrosion kinetics are similar. Data were validated by principal component analysis (PCA) and by the visual inspection of samples and rebars at the end of the study.This research was funded by the Spanish Government, grant number PID2020-119744RB-C21 funded by MCIN/AEI/10.13039/501100011033.Ramón Zamora, JE.; Lliso-Ferrando, JR.; Martínez-Ibernón, A.; Gandía-Romero, JM. (2023). Corrosion Assessment in Reinforced Concrete Structures by Means of Embedded Sensors and Multivariate Analysis-Part 1: Laboratory Validation. Sensors. 23(21):1-19. https://doi.org/10.3390/s23218869119232

Corrosion resistance of ultra-high performance fibre- reinforced concrete

[EN] The corrosion resistance of ultra-high performance concrete (UH) made with different fibre contents and under distinct curing conditions was studied. No signs of carbonation were observed after 1 year of accelerated carbonation testing (3% CO2). The fibreless UHs¿ electrical resistivity was above 5000 ¿·m, although these values were 2-fold higher than a UH with 1% fibres and approximately 5-fold higher than a UH with 2% fibres. Concrete resistance to chloride penetration was also extremely high (the diffusion coefficient equalled 1.3·10¿13 m2/s) and curing temperatures of 60 °C or 90 °C improved even more these properties, while lack of curing made them slightly worse. Given these excellent properties, the corrosion rate in specimens submerged in chloride solution for 1 year was negligible (iCORR from 0.007 to 0.025 µA/cm2). These values remained stable with time, unlike the 50 MPa concrete at 2 months when iCORR starting to increase and was 12-fold higher after 1 year. The time estimated for corrosion onset in UH is on average about 150-fold higher than that of 50 MPa.Authors thank to the Spanish Government the financial support of project BIA2016-78460-C3-3-R and to the European Union¿s Horizon 2020 the financial support of ReSHEALience project (Grant Agreement No. 760824). Furthermore, authors would like to express their gratitude for the support of the Universitat Politecnica de Valencia. Funding for open access charge: CRUE-Universitat Politecnica de Valencia. The predoctoral scholarship granted to Josep Ramon Lliso Ferrando within the program ¿Formacion de Personal Investigador¿ from the Universitat Politecnica de Valencia (FPI-UPV-2018) is also gratefully acknowledged.Valcuende Payá, MO.; Lliso-Ferrando, JR.; Ramón Zamora, JE.; Soto Camino, J. (2021). Corrosion resistance of ultra-high performance fibre- reinforced concrete. Construction and Building Materials. 306:1-10. https://doi.org/10.1016/j.conbuildmat.2021.124914S11030

Percepcion de la necesidad de tratamiento Ortodontico en estudiantes del decimo ciclo de la escuela profesional de Odontologia Upla – 2022

El objetivo del estudio fue establecer la percepción de la necesidad de tratamiento ortodóntico en estudiantes del décimo ciclo de la escuela profesional de odontología UPLA – 2022. La metodología fue descriptiva, transversal. Se trabajó con toda la población, del mismo modo firmaron el consentimiento informado para ser parte del estudio. Los datos cualitativos fueron analizados usando la prueba de chi cuadrado. los resultados fueron en la necesidad de tratamiento ortodóntico que el 43,3% no presentaron necesidad, el 50,0% con ligera necesidad y el 6,7% con necesidad media, respecto a procedencia en el Tambo 66,7% no presentaron necesidad y el 33,3% presentaron ligera necesidad; del total de personas que viven en Huancayo el 60,0% no presentaron necesidad y el 40,0% ligera necesidad; del total de estudiantes que viven en Chilca el 40,0% no presentaron necesidad, el 40,0% ligera necesidad y el 20,0% con necesidad media y del total de estudiantes que residen en otros lugares el 11,1% no presentaron necesidad, el 77,8% ligera necesidad y el 11,1% con necesidad media. según la edad de 21 a 25 años el 52,2% no presentaron necesidad y el 47,8% ligera necesidad; del total de personas que tienen entre 26 a 30 años el 16,7% no presentaron necesidad, el 66,4% ligera necesidad y el 16,7% necesidad media; del total de estudiantes que tienen más de 31 años el 100,0 % presentaron necesidad media, respecto al género del sexo femenino el 52,9% no presentaron necesidad, el 35,3% presenta ligera necesidad y el 11,8% presentaron necesidad media; del total de personas del sexo masculino el 30,8% no presentaron necesidad y el 69,2% ligera necesidad. Se concluye que existió una necesidad ligera en la necesidad de tratamiento ortodóntico, en procedencia y edad presentaron una necesidad media y según el género s presento una ligera necesidad. Palabras claves: percepción, tratamiento, ortodontic

Clearance of ctDNA in triple-negative and HER2-positive breast cancer patients during neoadjuvant treatment is correlated with pathologic complete response

Breast cancer; Liquid biopsy; Neoadjuvant therapyCàncer de mama; Biòpsia líquida; Teràpia neoadjuvantCáncer de mama; Biopsia líquida; Terapia neoadyuvanteBackground: Although the standard of care is to perform surgery of primary breast cancer (BC) after neoadjuvant chemotherapy (NAC), for certain patients achieving clinical complete response (cCR) and pathologic complete response (pCR), omission of surgical treatment may be an option. Levels of circulating tumor DNA (ctDNA) during and after therapy could identify patients achieving minimal residual disease. In this study, we evaluated whether ctDNA clearance during NAC could be a correlate to effective response in human epidermal growth factor receptor 2 positive (HER2+) and triple-negative (TN) BC patients. Methods: A prospective study was conducted to identify patient-specific PIK3CA and TP53 mutations in tissue using next-generation sequencing, which could then be used to track the presence/absence of mutations prior to, during, and following NAC using Sysmex SafeSEQ technology. All patients underwent a surgical excision after NAC, and pCR was assessed. Results: A total of 29 TN and HER2+ BC patients were examined and 20 that carried mutations in the PIK3CA and/or TP53 genes were recruited. Overall, 19 of these 20 patients harbored at least one tumor-specific mutation in their plasma at baseline. After NAC, 15 patients (75.0%) achieved pCR according to the histopathologic evaluation of the surgical specimen, and 15 patients (75.0%) had a cCR; 18 of 20 patients (90.0%) had concordant pCR and cCR. The status of ‘no mutation detected’ (NMD) following NAC in cCR patients correctly identified the pCR in 14 of 15 patients (93.33%), as well as correctly ruled out pCR in three patients, with an accuracy of 89.47%. During the 12-month follow-up after surgery, 40 plasma samples collected from 15 patients all showed no detectable ctDNA (NMD), and no patient recurred. Conclusion: These findings prompt further research of the value of ctDNA for non-invasive prediction of clinical/pathological response, raising the possibility of sparing surgery following NAC in selected BC patients.The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was supported by a grant from Sysmex Inostics, Inc. The sponsor coordinated data collection from study centers, and funded the statistical analysis and medical writing assistance