236 research outputs found

    Kontribusi Supervisi Akedemik Kepala Sekolah, Kompetensi Guru Dalam Penyusunan Administrasi Pembelajaran Dan Motivasi Kerja Guru Terhadap Implementasi Kurikulum Tingkat Satuan Pendidikan Pada SMA Negeri Bertaraf Internasional Di Kabupaten

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    Penelitian ini bertujuan untuk mengetahui besarnya kontribusi (1) supervisiAkademik kepala sekolah, (2) kompetensi guru dalam penyusunan administrasipembelajaran, (3) motivasi kerja guru baik secara tunggal, maupun simultanterhadap implementasi Kurikulum Tingkat Satuan Pendidikan .Populasi subyek penelitian ini adalah seluruh guru SMA RSBI di KabupatenGianyar yang berjumlah 125 orang, (study sensus), Semua anggota populasidijadikan responden, pemelitian ini menggunakan rancangan ex-post facto.melibatkan tiga variable bebas, Supervisi Akedemik Kepala Sekolah, KompetensiGuru Dalam Penyusunan Administrasi Pembelajaran dan Motivasi Kerja Guru.Data dikumpulkan dengan kuesioner. Data dianalisis dengan analisis regresisederhana,regresi ganda dan korelasi. parsialHasil analisis terhadap Implementasi KTSP ditemukan: (1) terdapatkontribusi yang signifikan supervisi akademik kepala sekolah melalui persamaanregresi Y = 24,577 + 0,508X1 dengan kontribusi sebesar 25,90% dan sumbanganefektif sebesar 17,30%, (2) terdapat kontribusi yang signifikan kompetensi gurudalam penyusunan administrasi pembelajaran melalui persamaan regresi Y =27,114+ 0,458X2 dengan kontribusi sebesar 21,10% dan sumbangan efektifsebesar 11,20%, (3) terdapat kontribusi yang signifikan motivasi kerja gurumelalui persamaan regresi Y = 35,534+ 0,289X3 dengan kontribusi sebesar 8,40%dan sumbangan efektif sebesar 5,50%, dan (4) terdapat kontribusi yang signifikansecara bersama-sama antara supervisi akademik kepala sekolah, kompetensi gurudalam penyusunan administrasi pembelajaran, dan motivasi kerja guru terhadapimplementasi KTSP pada SMA Negeri bertaraf Internasional di KabupatenGianyar melalui persamaan regresi Y = 11,256+ 0,341X1 + 0,244X2 +0,190X3dengan Freg = 20,781 (p<0,05) dengan sumbangan efektif sebesar 34%. Dengan demikian ketiga variabel tersebut dapat dijadikan prediktor tingkatkecenderungan implementasi KTSP sekolah pada SMA bertaraf Internasional diKabuapten Gianyar

    Long-term effect of temperature and precipitation on radial growth in a threatened thermo-Mediterranean tree population

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    The combined effect of climate change and habitat destruction and fragmentation threatens many plant populations and even entire communities in Mediterranean ecosystems. The Iberian pear, Pyrus bourgaeana Decne, a characteristic species of Mediterranean ecosystems, is threatened by both habitat and climate changes. We ask whether and how the growth of mature P. bourgaeana in the thermo-Mediterranean zone (i.e., altitude <700 m) has been affected by long-term climate changes during the last century in a fragmented landscape. Dendrochronological methods were used to find growth–climate relationships. We made the first dendroclimatological analyses and constructed a first 103-year tree-ring chronology (1905–2007) of this species. The tree-ring series revealed large growth variability. We found a clear, strong relationship between tree growth and climate, with annual precipitation being the most important climate factor enhancing radial growth. Our results also showed that warm autumns and winters positively affect growth. There was no temporal stability in the relationship between tree growth and climate. The most general trend was in the relationship between annual precipitation and tree growth: the decrease of rainfall in the last decades of the twentieth century was associated with a constant increase of the correlation coefficient. Water accumulated in the soil in autumn and winter proved to be a key factor augmenting tree growth in the following vegetation period. The climate–growth relationship in P. bourgaeana has strengthened in recent decades apparently due to decreased precipitation levels.Peer reviewe

    Secure Vehicular Communication Systems: Implementation, Performance, and Research Challenges

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    Vehicular Communication (VC) systems are on the verge of practical deployment. Nonetheless, their security and privacy protection is one of the problems that have been addressed only recently. In order to show the feasibility of secure VC, certain implementations are required. In [1] we discuss the design of a VC security system that has emerged as a result of the European SeVeCom project. In this second paper, we discuss various issues related to the implementation and deployment aspects of secure VC systems. Moreover, we provide an outlook on open security research issues that will arise as VC systems develop from today's simple prototypes to full-fledged systems

    Separating the influences of prereading skills on early word and nonword reading

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    The essential first step for a beginning reader is to learn to match printed forms to phonological representations. For a new word, this is an effortful process where each grapheme must be translated individually (serial decoding). The role of phonological awareness in developing a decoding strategy is well known. We examined whether beginning readers recruit different skills depending on the nature of the words being read (familiar words vs. nonwords). Print knowledge, phoneme and rhyme awareness, rapid automatized naming (RAN), phonological short-term memory (STM), nonverbal reasoning, vocabulary, auditory skills, and visual attention were measured in 392 prereaders 4 and 5 years of age. Word and nonword reading were measured 9 months later. We used structural equation modeling to examine the skills–reading relationship and modeled correlations between our two reading outcomes and among all prereading skills. We found that a broad range of skills were associated with reading outcomes: early print knowledge, phonological STM, phoneme awareness and RAN. Whereas all of these skills were directly predictive of nonword reading, early print knowledge was the only direct predictor of word reading. Our findings suggest that beginning readers draw most heavily on their existing print knowledge to read familiar words

    Covalent attachment of fibronectin onto emulsion‐templated porous polymer scaffolds enhances human endometrial stromal cell adhesion, infiltration, and function

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    A novel strategy for the surface functionalization of emulsion‐templated highly porous (polyHIPE) materials as well as its application to in vitro 3D cell culture is presented. A heterobifunctional linker that consists of an amine‐reactive N‐hydroxysuccinimide ester and a photoactivatable nitrophenyl azide, N‐sulfosuccinimidyl‐6‐(4â€Č‐azido‐2â€Č‐nitrophenylamino)hexanoate (sulfo‐SANPAH), is utilized to functionalize polyHIPE surfaces. The ability to conjugate a range of compounds (6‐aminofluorescein, heptafluorobutylamine, poly(ethylene glycol) bis‐amine, and fibronectin) to the polyHIPE surface is demonstrated using fluorescence imaging, FTIR spectroscopy, and X‐ray photoelectron spectroscopy. Compared to other existing surface functionalization methods for polyHIPE materials, this approach is facile, efficient, versatile, and benign. It can also be used to attach biomolecules to polyHIPE surfaces including cell adhesion‐promoting extracellular matrix proteins. Cell culture experiments demonstrated that the fibronectin‐conjugated polyHIPE scaffolds improve the adhesion and function of primary human endometrial stromal cells. It is believed that this approach can be employed to produce the next generation of polyHIPE scaffolds with tailored surface functionality, enhancing their application in 3D cell culture and tissue engineering whilst broadening the scope of applications to a wider range of cell types

    Predicting dyslexia using prereading skills:the role of sensorimotor and cognitive abilities

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    Background: It is well established that phonological awareness, print knowledge and rapid naming predict later reading difficulties. However, additional auditory, visual and motor difficulties have also been observed in dyslexic children. It is examined to what extent these difficulties can be used to predict later literacy difficulties. Method: An unselected sample of 267 children at school entry completed a wide battery of tasks associated with dyslexia. Their reading was tested 2, 3 and 4 years later and poor readers were identified (n = 42). Logistic regression and multiple case study approaches were used to examine the predictive validity of different tasks. Results: As expected, print knowledge, verbal short-term memory, phonological awareness and rapid naming were good predictors of later poor reading. Deficits in visual search and in auditory processing were also present in a large minority of the poor readers. Almost all poor readers showed deficits in at least one area at school entry, but there was no single deficit that characterised the majority of poor readers. Conclusions: Results are in line with Pennington’s (2006) multiple deficits view of dyslexia. They indicate that the causes of poor reading outcome are multiple, interacting and probabilistic, rather than deterministic. Keywords: Dyslexia; educational attainment; longitudinal studies; prediction; phonological processing

    Educational outcomes in extremely preterm children : neuropsychological correlates and predictors of attainment

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    This study assessed the impact of extremely preterm birth on academic attainment at 11 years of age, investigated neuropsychological antecedents of attainment in reading and mathematics, and examined early predictors of educational outcomes. Children born extremely preterm had significantly poorer academic attainment and a higher prevalence of learning difficulties than their term peers. General cognitive ability and specific deficits in visuospatial skills or phoneme deletion at 6 years were predictive of mathematics and reading attainment at 11 years in both extremely preterm and term children. Phonological processing, attention, and executive functions at 6 years were also associated with academic attainment in children born extremely preterm. Furthermore, social factors, neonatal factors (necrotizing enterocolitis, breech delivery, abnormal cerebral ultrasound, early breast milk provision), and developmental factors at 30 months (head circumference, cognitive development), were independent predictors of educational outcomes at 11 years. Neonatal complications combined with assessments of early cognitive function provide moderate prediction for educational outcomes in children born extremely preterm

    Progesterone-dependent induction of phospholipase C-related catalytically inactive protein 1 (PRIP-1) in decidualizing human endometrial stromal cells

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    Decidualization denotes the transformation of endometrial stromal cells into specialized decidual cells. In pregnancy, decidual cells form a protective matrix around the implanting embryo, enabling coordinated trophoblast invasion and formation of a functional placenta. Continuous progesterone (P4) signaling renders decidual cells resistant to various environmental stressors, whereas withdrawal inevitably triggers tissue breakdown and menstruation or miscarriage. Here, we show that PLCL1, coding phospholipase C (PLC)-related catalytically inactive protein 1 (PRIP-1), is highly induced in response to P4 signaling in decidualizing human endometrial stromal cells (HESCs). Knockdown experiments in undifferentiated HESCs revealed that PRIP-1 maintains basal phosphoinositide 3-kinase/Protein kinase B activity, which in turn prevents illicit nuclear translocation of the transcription factor forkhead box protein O1 and induction of the apoptotic activator BIM. By contrast, loss of this scaffold protein did not compromise survival of decidual cells. PRIP-1 knockdown did also not interfere with the responsiveness of HESCs to deciduogenic cues, although the overall expression of differentiation markers, such as PRL, IGFBP1, and WNT4, was blunted. Finally, we show that PRIP-1 in decidual cells uncouples PLC activation from intracellular Ca2+ release by attenuating inositol 1,4,5-trisphosphate signaling. In summary, PRIP-1 is a multifaceted P4-inducible scaffold protein that gates the activity of major signal transduction pathways in the endometrium. It prevents apoptosis of proliferating stromal cells and contributes to the relative autonomy of decidual cells by silencing PLC signaling downstream of Gq protein-coupled receptors
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