Taro Nakagawa: search on Z-Library

The world's largest scientific articles store. 70,000,000+ articles for free.

Don't use scam websites

51

Intake of 1-Deoxynojirimycin Suppresses Lipid Accumulation through Activation of the β-Oxidation System in Rat Liver

Tsuduki, Tsuyoshi, Nakamura, Yumiko, Honma, Taro, Nakagawa, Kiyotaka, Kimura, Toshiyuki, Ikeda, Ikuo, Miyazawa, Teruo

Journal:

Journal of Agricultural and Food Chemistry

Year:

2009

Language:

english

File:

PDF, 1021 KB

english, 2009

52

Purification, Characterization and Sequence Analyses of the Extracellular Giant Hemoglobin from Oligobrachia mashikoi

Nakagawa, Taro, Onoda, Seiko, Kanemori, Masaaki, Sasayama, Yuichi, Fukumori, Yoshihiro

Journal:

Zoological Science

Year:

2005

Language:

english

File:

PDF, 1.12 MB

english, 2005

53

Design, synthesis, and structure–activity relationships of a series of novel N-aryl-2-phenylcyclopropanecarboxamide that are potent and orally active orexin receptor antagonists

Yoshida, Yu, Terauchi, Taro, Naoe, Yoshimitsu, Kazuta, Yuji, Ozaki, Fumihiro, Beuckmann, Carsten T., Nakagawa, Makoto, Suzuki, Michiyuki, Kushida, Ikuo, Takenaka, Osamu, Ueno, Takashi, Yonaga, Masahir

Journal:

Bioorganic & Medicinal Chemistry

Year:

2014

Language:

english

File:

PDF, 2.35 MB

english, 2014

54

Free Graft of Fascial Tube in Flexor Tendon Repair in the Digital Sheath of the Hand: An Attempt at a Composite Tissue Autograft

Suzuki, Katsumi, Takahashi, Sadao, Ito, Yoshihiro, Iwaya, Tsutomu, Nakagawa, Taro

Journal:

Acta Orthopaedica

Year:

1976

Language:

english

File:

PDF, 588 KB

english, 1976

55

Radiological Studies of the Wrist Joint Among Chain Saw Operating Lumberjacks in Japan

Suzuki, Katsumi, Takahashi, Sadao, Nakagawa, Taro

Journal:

Acta Orthopaedica

Year:

1978

Language:

english

File:

PDF, 521 KB

english, 1978

56

Purification and Characterization of Coacervate-Forming Cuticular Proteins from Papilio xuthus Pupae

Yamanaka, Masahiro, Ishizaki, Yumi, Nakagawa, Taro, Taoka, Azuma, Fukumori, Yoshihiro

Journal:

Zoological Science

Year:

2013

Language:

english

File:

PDF, 727 KB

english, 2013

57

Ultrafast Metal-Semiconductor-Metal Photoconductive Switches Fabricated Using an Atomic Force Microscope

Itatani, Taro, Segawa, Kazuhito, Matsumoto, Kazuhiko, Ishii, Masami, Nakagawa, Tadashi, Ohta, Kimihiro, Sugiyama, Yoshinobu

Journal:

Japanese Journal of Applied Physics

Year:

1996

File:

PDF, 770 KB

1996

58

Patient Specific Simulation of Body Surface ECG using the Finite Element Method

OKADA, JUN-ICHI, SASAKI, TERUYOSHI, WASHIO, TAKUMI, YAMASHITA, HIROSHI, KARIYA, TARO, IMAI, YASUSHI, NAKAGAWA, MACHIKO, KADOOKA, YOSHIMASA, NAGAI, RYOZO, HISADA, TOSHIAKI, SUGIURA, SEIRYO

Journal:

Pacing and Clinical Electrophysiology

Year:

2013

Language:

english

File:

PDF, 1.47 MB

english, 2013

59

Deletion of the four phospholipid hydroperoxide glutathione peroxidase genes accelerates aging in Caenorhabditis elegans

Sakamoto, Taro, Maebayashi, Kana, Nakagawa, Yasuhito, Imai, Hirotaka

Journal:

Year:

2014

Language:

english

File:

PDF, 2.97 MB

english, 2014

60

Concomitant accumulation of α-synuclein and TDP-43 in a patient with corticobasal degeneration

Yamashita, Satoshi, Sakashita, Naomi, Yamashita, Taro, Tawara, Nozomu, Tasaki, Masayoshi, Kawakami, Kensuke, Komohara, Yoshihiro, Fujiwara, Yukio, Kamikawa, Masashi, Nakagawa, Takenobu, Hirano, Teruyu

Journal:

Journal of Neurology

Year:

2014

Language:

english

File:

PDF, 12.27 MB

english, 2014

61

Lenvatinib in combination with golvatinib overcomes hepatocyte growth factor pathway-induced resistance to vascular endothelial growth factor receptor inhibitor

Nakagawa, Takayuki, Matsushima, Tomohiro, Kawano, Satoshi, Nakazawa, Youya, Kato, Yu, Adachi, Yusuke, Abe, Takanori, Semba, Taro, Yokoi, Akira, Matsui, Junji, Tsuruoka, Akihiko, Funahashi, Yasuhiro

Journal:

Year:

2014

Language:

english

File:

PDF, 1.18 MB

english, 2014

62

External Morphology of the Posterior End, the “Opisthosoma”, of the Beard Worm Oligobrachia mashikoi (Pogonophora)

Sasayama, Yuichi, Matada, Masahiro, Fukumori, Yoshihiro, Umebayashi, Masayoshi, Matsuno, Akira, Nakagawa, Taro, Imajima, Minoru

Journal:

Zoological Science

Year:

2003

Language:

english

File:

PDF, 2.82 MB

english, 2003

63

Blood neutrophil to lymphocyte ratio as a predictor in patients with advanced hepatocellular carcinoma treated with hepatic arterial infusion chemotherapy

Terashima, Takeshi, Yamashita, Tatsuya, Iida, Noriho, Yamashita, Taro, Nakagawa, Hidetoshi, Arai, Kuniaki, Kitamura, Kazuya, Kagaya, Takashi, Sakai, Yoshio, Mizukoshi, Eishiro, Honda, Masao, Kaneko, S

Journal:

Hepatology Research

Year:

2014

Language:

english

File:

PDF, 326 KB

english, 2014

64

Sa1806 Risk Factors for Osteoporosis - Are Infection or Eradication of Helicobacter pylori Associated?

Asaoka, Daisuke, Nagahara, Akihito, Shimada, Yuji, Matsumoto, Kenshi, Ueyama, Hiroya, Matsumoto, Kohei, Nakagawa, Yuta, Takeda, Tsutomu, Tanaka, Ippei, Osada, Taro, Hojo, Mariko, Watanabe, Sumio

Journal:

Gastroenterology

Year:

2015

Language:

english

File:

PDF, 309 KB

english, 2015

65

Real Time Magnetic Imaging by Spin-Polarized Low Energy Electron Microscopy with Highly Spin-Polarized and High Brightness Electron Gun

Suzuki, Masahiko, Hashimoto, Michihiro, Yasue, Tsuneo, Koshikawa, Takanori, Nakagawa, Yasuhide, Konomi, Taro, Mano, Atsushi, Yamamoto, Naoto, Kuwahara, Makoto, Yamamoto, Masahiro, Okumi, Shoji, Nakani

Journal:

Applied Physics Express

Year:

2010

Language:

english

File:

PDF, 1.52 MB

english, 2010

66

The structure of a deoxygenated 400 kDa haemoglobin reveals ternary- and quaternary-structural changes of giant haemoglobins

Numoto, Nobutaka, Nakagawa, Taro, Ohara, Ryota, Hasegawa, Tomoyo, Kita, Akiko, Yoshida, Takao, Maruyama, Tadashi, Imai, Kiyohiro, Fukumori, Yoshihiro, Miki, Kunio

Journal:

Acta Crystallographica Section D Biological Crystallography

Year:

2014

Language:

english

File:

PDF, 1.66 MB

english, 2014

67

Intrascrotal Dedifferentiated Leiomyosarcoma Originating from Dartos Muscle

Teshima, Taro, Takahashi, Sayuri, Nagamoto, Shoichi, Miyazaki, Hideyo, Nakagawa, Tohru, Fujimura, Tetsuya, Fukuhara, Hiroshi, Kume, Haruki, Homma, Yukio

Journal:

Case Reports in Urology

Year:

2014

Language:

english

File:

PDF, 1.70 MB

english, 2014

68

Corrigendum to “Design, synthesis, and structure–activity relationships of a series of novel N-aryl-2-phenylcyclopropanecarboxamide that are potent and orally active orexin receptor antagonists” [Bioorg. Med. Chem. 22 (2014) 6071–6088]

Yoshida, Yu, Terauchi, Taro, Naoe, Yoshimitsu, Kazuta, Yuji, Ozaki, Fumihiro, Beuckmann, Carsten T., Nakagawa, Makoto, Suzuki, Michiyuki, Kushida, Ikuo, Takenaka, Osamu, Ueno, Takashi, Yonaga, Masahir

Journal:

Bioorganic & Medicinal Chemistry

Year:

2015

Language:

english

File:

PDF, 261 KB

english, 2015

69

[AIP GAMMA-RAY BURST: Sixth Huntsville Symposium - Huntsville (Alabama) (20–23 October 2008)] AIP Conference Proceedings - Development of the GRB Monitor for the CALET Experiment

Yamaoka, Kazutaka, Yoshida, Atsumasa, Kotani, Taro, Nakahira, Satoshi, Suzuki, Kei, Ohyama, Takuya, Doshida, Takaaki, Kojima, Tohru, Shiraki, Takayuki, Kataoka, Tomoki, Nakagawa, Yujin E., Tomida, Hir

Year:

2009

Language:

english

File:

PDF, 2.30 MB

english, 2009

70

Ion Transport in Concentrated Electrolyte Solutions

Dodo, Taro, Nakagawa, Toshi-Aki, Nonaka, Eiji

Journal:

Japanese Journal of Applied Physics

Year:

1993

Language:

english

File:

PDF, 237 KB

english, 1993

71

Photogenerated Carriers in SrTiO 3 Probed by Mid-Infrared Absorption

Okamura, Hidekazu, Matsubara, Masato, Tanaka, Koichiro, Fukui, Kazutoshi, Terakami, Mitsushi, Nakagawa, Hideyuki, Ikemoto, Yuka, Moriwaki, Taro, Kimura, Hiroaki, Nanba, Takao

Journal:

Journal of the Physical Society of Japan

Year:

2006

Language:

english

File:

PDF, 173 KB

english, 2006

72

Production of matrix metalloproteinases and tissue inhibitor of metalloproteinases-1 by human brain tumors

Nakagawa, Takao, Kubota, Toshihiko, Kabuto, Masanori, Sato, Kazufumi, Kawano, Hirokazu, Hayakawa, Taro, Okada, Yasunori

Journal:

Journal of Neurosurgery

Year:

1994

File:

PDF, 1.10 MB

1994

73

Attenuation of fluctuating striatal synaptic dopamine levels in patients with Parkinson disease in response to subthalamic nucleus stimulation: a positron emission tomography study

Nimura, Taro, Yamaguchi, Keiichiro, Ando, Tadashi, Shibuya, Satoshi, Oikawa, Takanori, Nakagawa, Atsuhiro, Shirane, Reizo, Itoh, Masatoshi, Tominaga, Teiji

Journal:

Journal of Neurosurgery

Year:

2005

Language:

english

File:

PDF, 169 KB

english, 2005

74

Prospective Trial of Stereotactic Body Radiation Therapy for Both Operable and Inoperable T1N0M0 Non-Small Cell Lung Cancer: Japan Clinical Oncology Group Study JCOG0403

Nagata, Yasushi, Hiraoka, Masahiro, Shibata, Taro, Onishi, Hiroshi, Kokubo, Masaki, Karasawa, Katsuyuki, Shioyama, Yoshiyuki, Onimaru, Rikiya, Kozuka, Takuyo, Kunieda, Etsuo, Saito, Tsutomu, Nakagawa,

Journal:

International Journal of Radiation Oncology*Biology*Physics

Year:

2015

Language:

english

File:

PDF, 736 KB

english, 2015

75

Mn–Zn spinel ferrite thin films prepared by high rate reactive facing targets sputtering

Nakagawa, Shigeki, Saito, Shunsuke, Kamiki, Taro, Kong, Sok-Hyun

Journal:

Journal of Applied Physics

Year:

2003

Language:

english

File:

PDF, 576 KB

english, 2003

76

Combined chemotherapy with cisplatin, etoposide, and irinotecan versus topotecan alone as second-line treatment for patients with sensitive relapsed small-cell lung cancer (JCOG0605): a multicentre, open-label, randomised phase 3 trial

Goto, Koichi, Ohe, Yuichiro, Shibata, Taro, Seto, Takashi, Takahashi, Toshiaki, Nakagawa, Kazuhiko, Tanaka, Hiroshi, Takeda, Koji, Nishio, Makoto, Mori, Kiyoshi, Satouchi, Miyako, Hida, Toyoaki, Yoshi

Journal:

The Lancet Oncology

Year:

2016

Language:

english

File:

PDF, 404 KB

english, 2016

77

[IEEE 2015 3rd IAPR Asian Conference on Pattern Recognition (ACPR) - Kuala Lumpur, Malaysia (2015.11.3-2015.11.6)] 2015 3rd IAPR Asian Conference on Pattern Recognition (ACPR) - Character-position-free on-line handwritten Japanese text recognition

Liang, Jianjuan, Zhu, Bilan, Kumagai, Taro, Nakagawa, Masaki

Year:

2015

Language:

english

File:

PDF, 241 KB

english, 2015

78

Effect of Genetic Risk Factors and Disease Progression on the Cerebrospinal Fluid Tau Levels in Alzheimer's Disease

Arai, Hiroyuki, Terajima, Masanori, Miura, Masakazu, Higuchi, Susumu, Muramatsu, Taro, Matsushita, Sachio, Machida, Nobuo, Nakagawa, Takuma, Lee, Virginia M.-Y., Trojanowski, John Q., Sasaki, Hidetada

Journal:

Journal of the American Geriatrics Society

Year:

1997

Language:

english

File:

PDF, 387 KB

english, 1997

79

Usefulness of Multidetector Computed Tomography for Detecting Protruding Lesions in Intraductal Papillary Mucinous Neoplasm of the Pancreas in Comparison With Single-Detector Computed Tomography and Endoscopic Ultrasonography

Nakagawa, Akihiko, Yamaguchi, Taketo, Ohtsuka, Masayuki, Ishihara, Takeshi, Sudo, Kentaro, Nakamura, Kazuyoshi, Hara, Taro, Denda, Tadamichi, Miyazaki, Masaru

Journal:

Year:

2009

Language:

english

File:

PDF, 767 KB

english, 2009

80

Post-progression survival and progression-free survival in patients with advanced hepatocellular carcinoma treated by sorafenib

Terashima, Takeshi, Yamashita, Tatsuya, Takata, Noboru, Nakagawa, Hidetoshi, Toyama, Tadashi, Arai, Kuniaki, Kitamura, Kazuya, Yamashita, Taro, Sakai, Yoshio, Mizukoshi, Eishiro, Honda, Masao, Kaneko,

Journal:

Hepatology Research

Year:

2016

Language:

english

File:

PDF, 536 KB

english, 2016

81

SPIE Proceedings [SPIE Optoelectronics '99 - Integrated Optoelectronic Devices - San Jose, CA (Saturday 23 January 1999)] Ultrafast Phenomena in Semiconductors III - Generation of THz electrical signals from nanostructures

Itatani, Taro, Nakagawa, Tadashi, Tsen, Kong-Thon F.

Year:

1999

Language:

english

File:

PDF, 288 KB

english, 1999

82

Regional cerebral glucose utilization is modulated by the dosage of apolipoprotein E type 4 allele and α1-antichymotrypsin type A allele in Alzheimerʼs disease

Higuchi, Makoto, Arai, Hiroyuki, Nakagawa, Takuma, Higuchi, Susumu, Muramatsu, Taro, Matsushita, Sachio, Kosaka, Yo-ichi, Itoh, Masatoshi, Sasaki, Hidetada

Journal:

Year:

1997

Language:

english

File:

PDF, 238 KB

english, 1997

83

Absence of Activation-induced Cytidine Deaminase, a Regulator of Class Switch Recombination and Hypermutation in B Cells, Suppresses Aorta Allograft Vasculopathy in Mice

Nakanishi, Tomonori, Xu, Xiaoyan, Wynn, Carmen, Yamada, Toshiko, Pan, Fan, Erickson, Laurie, Teo, Haeman, Nakagawa, Terry, Masunaga, Taro, Abe, Jumpei, Akamatsu, Masahiko, Tamura, Kouichi, Jiang, Hong

Journal:

Transplantation Journal

Year:

2015

Language:

english

File:

PDF, 1.31 MB

english, 2015

84

10.1248/jhs1956.26.286

NAKAGAWA, TOMOO, SATO, YOKO, WATABE, AI, KAWAMURA, TARO, MORITA, MASATOSHI

Journal:

Year:

1980

File:

PDF, 782 KB

1980

85

Intravenous Administration of Polyethylene Glycol-Coated (PEGylated) Proteins and PEGylated Adenovirus Elicits an Anti-PEG Immunoglobulin M Response

Shimizu, Taro, Ichihara, Masako, Yoshioka, Yasuo, Ishida, Tatsuhiro, Nakagawa, Shinsaku, Kiwada, Hiroshi

Journal:

Biological & Pharmaceutical Bulletin

Year:

2012

Language:

english

File:

PDF, 604 KB

english, 2012

86

MODELING OF NON-LINEAR HYSTERETIC SOIL

NAKAGAWA, Taro, HIRASAWA, Mitsuharu, KOBAYASHI, Katsumi, SASAKI, Satoshi

Journal:

Journal of Structural and Construction Engineering (Transactions of AIJ)

Year:

2011

Language:

english

File:

PDF, 1.63 MB

english, 2011

87

CASE STUDIES ON CO2 EMISSION OF FOUNDATION PILES

NAKAGAWA, Taro, OGAWA, Atsushi, KATSURA, Yutaka, HOTTA, Hiroyuki, AOSHIMA, Kazuki, TSUBAKIHARA, Yasunori, ISEMOTO, Noriaki, SANO, Daisaku, NISHI, Masateru

Journal:

AIJ Journal of Technology and Design

Year:

2009

File:

PDF, 785 KB

2009

88

BENCHMARK TESTS FOR STRONG GROUND MOTION PREDICTION METHODS: CASE FOR THEORETICAL METHODS (PART 2)

HISADA, Yoshiaki, NAGANO, Masayuki, NOZU, Atsushi, MIYAKOSHI, Ken, NAKAGAWA, Taro, ASANO, Kimiyuki, MATSUMOTO, Toshiaki

Journal:

AIJ Journal of Technology and Design

Year:

2012

File:

PDF, 2.48 MB

2012

89

Comparison of the Health Benefits of Different Eras of Japanese Foods : Lipid and Carbohydrate Metabolism Focused Research

Honma, Taro, Kitano, Yasuna, Kijima, Ryo, Jibu, Yuri, Kawakami, Yuki, Tsuduki, Tsuyoshi, Nakagawa, Kiyotaka, Miyazawa, Teruo

Journal:

Nippon Shokuhin Kagaku Kogaku Kaishi

Year:

2013

File:

PDF, 409 KB

2013

90

Determination of Citrinin in Grain by Reversed-phase Ion-Pair Partition Chromatography

NAKAGAWA, Tomoo, KAWAMURA, Taro, FUJIMOTO, Yasuo, TATSUNO, Takashi

Journal:

Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi)

Year:

1982

Language:

english

File:

PDF, 529 KB

english, 1982

91

Formation Process and Properties of Nano-structured Materials

Takebe, Hiromichi, Nakagawa, Keiyu, Kizu, Taro, Ogawa, Michiharu, Fujiwara, Kozo, Demura, Masahiko, Ii, Seiichiro, Hagihara, Koji, Murakami, Yasukazu

Journal:

Year:

2010

File:

PDF, 664 KB

2010

92

Quantitative Analysis of Aquaporin Expression Levels during the Development and Maturation of the Inner Ear

Miyoshi, Takushi, Yamaguchi, Taro, Ogita, Kiyokazu, Tanaka, Yasuko, Ishibashi, Ken-ichi, Ito, Hiroaki, Kobayashi, Taisuke, Nakagawa, Takayuki, Ito, Juichi, Omori, Koichi, Yamamoto, Norio

Journal:

Journal of the Association for Research in Otolaryngology

Year:

2017

Language:

english

File:

PDF, 4.88 MB

english, 2017

93

Character-Position-Free On-Line Handwritten Japanese Text Recognition by Two Segmentation Methods

LIANG, Jianjuan, ZHU, Bilan, KUMAGAI, Taro, NAKAGAWA, Masaki

Journal:

IEICE Transactions on Information and Systems

Year:

2016

Language:

english

File:

PDF, 513 KB

english, 2016

94

Alendronate inhibits hyperalgesia and suppresses neuropeptide markers of pain in a mouse model of osteoporosis

Naito, Yohei, Wakabayashi, Hiroki, Kato, Sho, Nakagawa, Taro, Iino, Takahiro, Sudo, Akihiro

Journal:

Journal of Orthopaedic Science

Year:

2017

Language:

english

File:

PDF, 1.30 MB

english, 2017

95

Accumulation of alpha-fluoro-beta-alanine and fluoro mono acetate in a patient with 5-fluorouracil-associated hyperammonemia

Nishikawa, Yoshitaka, Funakoshi, Taro, Horimatsu, Takahiro, Miyamoto, Shin’ichi, Matsubara, Takeshi, Yanagita, Motoko, Nakagawa, Shunsaku, Yonezawa, Atsushi, Matsubara, Kazuo, Muto, Manabu

Journal:

Cancer Chemotherapy and Pharmacology

Year:

2017

Language:

english

File:

PDF, 867 KB

english, 2017

96

Semantic memory deficits are associated with pica in individuals with acquired brain injury

Funayama, Michitaka, Muramatsu, Taro, Koreki, Akihiro, Kato, Motoichiro, Mimura, Masaru, Nakagawa, Yoshitaka

Journal:

Behavioural Brain Research

Year:

2017

Language:

english

File:

PDF, 569 KB

english, 2017

97

Plastidial Folate Prevents Starch Biosynthesis Triggered by Sugar Influx into Non-Photosynthetic Plastids of Arabidopsis

Hayashi, Makoto, Tanaka, Mina, Yamamoto, Saki, Nakagawa, Taro, Kanai, Masatake, Anegawa, Aya, Ohnishi, Miwa, Mimura, Tetsuro, Nishimura, Mikio

Journal:

Plant and Cell Physiology

Year:

2017

Language:

english

File:

PDF, 1.95 MB

english, 2017

98

Deep sequencing analysis of the heterogeneity of seed and commercial lots of the bacillus Calmette-Guérin (BCG) tuberculosis vaccine substrain Tokyo-172

Wada, Takayuki, Maruyama, Fumito, Iwamoto, Tomotada, Maeda, Shinji, Yamamoto, Taro, Nakagawa, Ichiro, Yamamoto, Saburo, Ohara, Naoya

Journal:

Scientific Reports

Year:

2016

Language:

english

File:

PDF, 584 KB

english, 2016

99

High Rate Deposition of Mn-Zn Spinel Ferrite Thin Films Using Reactive Facing-Target Sputtering.

Kamiki, Taro, Saito, Syunsuke, Hyun, Kong Sok, Nakagawa, Shigeki

Journal:

Journal of the Japan Society of Powder and Powder Metallurgy

Year:

2003

File:

PDF, 2.93 MB

2003

100

The Surgical Apgar Score Predicts Not Only Short-Term Complications But Also Long-Term Prognosis After Esophagectomy

Nakagawa, Akio, Nakamura, Tetsu, Oshikiri, Taro, Hasegawa, Hiroshi, Yamamoto, Masashi, Kanaji, Shingo, Matsuda, Yoshiko, Yamashita, Kimihiro, Matsuda, Takeru, Sumi, Yasuo, Suzuki, Satoshi, Kakeji, Yos

Journal:

Annals of Surgical Oncology

Year:

2017

Language:

english

File:

PDF, 485 KB

english, 2017

To build up a library is to create a life. It’s never just a random collection of books.

— Carlos María Domínguez

Official channel

Z-Library Desktop Launcher

Z-Library Since 2009 support@z-lib.do

EnglishРусскийEspañolItalianoελληνικάاللغة العربيةBahasa IndonesiaBahasa Malaysiaहिन्दीDeutschFrançaisPortuguêsУкраїнськаPolski中文繁體中文日本語Tiếng ViệtAzərbaycan DiliՀայոց լեզուภาษาไทยTürk Diliქართველიবাংলাپښتوతెలుగుاردو한국어SrpskiБългарски