Meningkatkan Hasil Belajar dan Aktivitas Siswa Kelas X-7 SMA Kolese De Britto YOGYAKARTA pada Materi Protista dengan Permainan Edukatif Teka–teki Silang (Tts)

Berdasarkan hasil observasi dan wawancara dengan guru Biologi di SMA Kolese De Britto, didapatkan berbagai permasalahan yaitu siswa kurang aktif, minat baca siswa yang tergolong rendah, kesulitan dalam menyerap bahasa asing, dan program tuntas yang diharapkan oleh guru masih belum tercapai. Penelitian ini dilakukan untuk mengetahui peningkatan hasil belajar dan aktivitas siswa kelas X-7 SMA Kolese De Britto Yogyakarta pada materi Protista dengan metode permainan edukatif teka-teki silang. Penelitian tindakan kelas ini dilaksanakan dalam 2 siklus.Setiap siklus terdiri dari 5 tahapan, yaitu (1) Perencanaan, dilakukan untuk mengidentifikasi masalah dan merencanakan kegiatan pembelajaran seperti mempersiapkan perangkat pembelajaran dan membuat instrumen penelitian.(2) Pelaksanaaan, yaitu melaksanakan kegiatan belajar mengajar dengan menggunakan metode permainan edukatif teka-teki silang. (3) Observasi, pengambilan data tentang proses pembelajaran di dalam kelas. (4) Evaluasi, dilakukan untuk mengetahui peningkatan hasil belajar melalui tes evaluasi dan aktivitas siswa dalam hal bertanya dan menjawab melalui lembar observasi aktivitas siswa. (5) Refleksi, dilakukan untuk menganalisa data hasil penelitian untuk mengetahui kelebihan dan kekurangan di setiap siklusnya. Subyek penelitian adalah 37 siswa kelas X-7 SMA Kolese De Britto Yogyakarta. Hasil penelitian menunjukkan adanya korelasi yang cukup kuat antara peningkatan aktivitas dengan hasil belajar siswa yaitu sebesar 0,51. Semakin tinggi aktivitas siswa maka semakin tinggi pula hasil belajarnya. Persentasi siswa yang mencapai ketuntasan minimal pada siklus I sebesar 78,38% dan mengalami peningkatan pada siklus II menjadi 91,89%. Nilai rata-rata kelas siklus I sebesar 82,72 dan mengalami peningkatan pada siklus II menjadi 88,64. Aktivitas siswa pada siklus I sebesar 51,35% dan mengalami peningkatan pada siklus II yaitu menjadi 86,50 %. Berdasarkan data tersebut dapat disimpulkan permainan edukatif teka-teki silang dapat meningkatkan hasil belajar dan aktivitas siswa kelas X-7 SMA Kolese De Britto Yogyakarta pada materi Protista

THE EFFECT OF SUPPLY CHAIN MANAGEMENT ON COMPETITIVE ADVANTAGE AND FIRM PERFORMANCE (Case Study: The Fish Processing Industry in Bitung North Sulawesi Province in Indonesia)

Supply Chain Management (SCM) has been recognized as a strategy that could lead firm to gain competitive advantage, other than to achieve greater firm performance. This study aimed to analyze the effect of supply chain management to competitive advantage and firm performance, the effect of competitive advantage and firm performance and influence on the performance of SCM in Firm through a competitive advantage in the fish processing industry in Bitung North Sulawesi Province. Research conceptualizes and develops three dimensions of SCM practice (customer relationship management, internal supply chain management, supplier relationship, management) and tests the relationships between SCM, competitive advantage, and firm performance. Data for the study were collected from 21 firm and the relationships proposed in the framework were tested using partial least square (PLS)  The results indicate that SCM, which consists of three dimensions of customer relationship management, internal supply chain management and supplier relationship management, has a positive impact on competitive advantage and performance, competitive advantage has positive effect on the performance and the firm's performance depends on the competitive advantages of each of the fish processing industry. SCM in the industry of fish processing in the city of Bitung in North Sulawesi has positive effect on competitive advantage of firm. As for the performance of the enterprise, SCM also direct effect. The performance of fish processing firm directly been affected by the competitive excellence and SCM practice   Keywords: Supply chain management; Competitive Advantage; Firm Performance;                     Partial least Squar

Tunable sub-luminal propagation of narrowband x-ray pulses

Group velocity control is demonstrated for x-ray photons of 14.4 keV energy via a direct measurement of the temporal delay imposed on spectrally narrow x-ray pulses. Sub-luminal light propagation is achieved by inducing a steep positive linear dispersion in the optical response of ${}^{57}$Fe M\"ossbauer nuclei embedded in a thin film planar x-ray cavity. The direct detection of the temporal pulse delay is enabled by generating frequency-tunable spectrally narrow x-ray pulses from broadband pulsed synchrotron radiation. Our theoretical model is in good agreement with the experimental data.Comment: 8 pages, 4 figure

Attosecond double-slit experiment

A new scheme for a double-slit experiment in the time domain is presented. Phase-stabilized few-cycle laser pulses open one to two windows (``slits'') of attosecond duration for photoionization. Fringes in the angle-resolved energy spectrum of varying visibility depending on the degree of which-way information are observed. A situation in which one and the same electron encounters a single and a double slit at the same time is discussed. The investigation of the fringes makes possible interferometry on the attosecond time scale. The number of visible fringes, for example, indicates that the slits are extended over about 500as.Comment: 4 figure

Adiabatic Theory of Electron Detachment from Negative Ions in Two-Color Laser Field

Negative ion detachment in bichromatic laser field is considered within the adiabatic theory. The latter represents a recent modification of the famous Keldysh model for multiphoton ionization which makes it quantitatively reliable. We calculate angular differential detachment rates, partial rates for particular ATD (Above Threshold Detachment) channels and total detachment rates for the Hydrogen ion in a bichromatic field with 1:3 frequency ratio and various phase differences. Reliability of the present, extremely simple approach is testified by comparison with much more elaborate earlier calculations.Comment: 22 pages, 6 Postscript figure

Hydrogen bonding in infinite hydrogen fluoride and hydrogen chloride chains

Hydrogen bonding in infinite HF and HCl bent (zigzag) chains is studied using the ab initio coupled-cluster singles and doubles (CCSD) correlation method. The correlation contribution to the binding energy is decomposed in terms of nonadditive many-body interactions between the monomers in the chains, the so-called energy increments. Van der Waals constants for the two-body dispersion interaction between distant monomers in the infinite chains are extracted from this decomposition. They allow a partitioning of the correlation contribution to the binding energy into short- and long-range terms. This finding affords a significant reduction in the computational effort of ab initio calculations for solids as only the short-range part requires a sophisticated treatment whereas the long-range part can be summed immediately to infinite distances.Comment: 9 pages, 4 figures, 3 tables, RevTeX4, corrected typo

PENGARUH WORD OF MOUTH (WOM) TERHADAP KEPUTUSAN BERKUNJUNG WISATAWAN DI KAMPUNG ADAT BOTI KABUPATEN TTS

This research aims to determine the effect of word of mouth (WOM) simultaneously and partiallyon tourist’s visiting decisions in the Village of Indigenous Boti in TTS district. The independentvariables were examined are Volume and Dispersion. The samples in this research are 60respondents, collected using accidental sampling technique. The research used questionnaire asresearch instrument and analyzed with multiple regression analysis. From regression analysisobtained the equetion as follows : From the classic assumption test, regression models are independent and normaly distributed. Y = 3,142 + 0,578X1 + 0,560X2Hypotesis testing using t test known that variables Volume and Dispersion partially influence thetourist’s visiting decision variable significantly. Then through the F test seen that Volume andDispersion variables simultaneously influence the tourist’s visiting decision variable significantly.The value of adjusted R square is 0,507 which is mean that 50,7% of the decisions being influencedby Volume and Dispersion variables. While the remaining 49.3% of the decision influenced byother variables which is not examined. Keywords: Word of Mouth (Volume and Dispersion), Tourist’s Visiting Decisio