Heidegger in Hisamatsu Janko Lozar Mrevlje
Ars & humanitas,
12/2022, Letnik:
16, Številka:
2
Journal Article
Recenzirano
Odprti dostop
Članek prinaša vnovičen razmislek o nenavadni vzajemnosti evropske in japonske misli, ki se je zgodila Heideggrovi fenomenologiji in japonski, kjotski budistični misli Shin’ichija Hisamatsuja. ...Odgovor na vprašanje, zakaj je Heidegger vzbudil takšno zanimanje pri japonskem mislecu, je tudi odgovor na vprašanje, kaj je tisto, s čimer je Heidegger tako nenavadno izstopil iz evropske filozofske tradicije. Če drži, da je japonski misli odpiranje za evropsko filozofijo pomagalo, da doseže svoje lastno bistvo, vsekakor drži tudi obratno: tisto izmuzljivo nenavadno budistične misli (vsaj) evropskim fenomenologom pomaga jasneje razbrati Heideggrovo resnico biti. Fenomenologija resnice biti zgolj v okviru evropske filozofije se lahko izgublja v repetitivno negativnih opredelitvah, ko mora vedno znova dokazovati in kazati, da osredotočenost na zgolj bivajoče ne zadošča in da bit ni nikoli isto kot bivajoče. S to negativno potjo pa ostaja v primežu primata bivajočega. Zato bi lahko dejali, da Hisamatsu s svojo mislijo o niču Heideggrovo resnico biti sprošča v njenem bistvu kot njenem zjasnjenju mimo odpravljanja, ukinjanja, zanikanja bivajočega. Heideggru je bilo jasno, da evropska in japonska misel nikoli ne bosta stopili druga drugi za hrbet v čisto očitnost resnice drugega. Še več – da je taka ambicija v osnovi zgrešena. Drugi je tisti, ki naj ostane drugi ravno zato, da me razkriva v moji lastni enkratnosti. Enigmatičnost drugega je tista, ki pomaga k večji, boljši razjasnitvi mene samega. Zahod in Vzhod v tem oziru – to je tudi osnovna ambicija pričujočega članka – ne prinašata vzajemnosti kot istosti, pač pa vzajemno drugost, ki vzpodbuja rast lastnega. Če torej evropska pot pelje od bivajočega k biti, je – po trkih z japonskim polnim ničem – evropska pot pravzaprav še toliko bolj pot od biti k bivajočemu.
Konec osemdesetih let je Jugoslavija spremenila koncept narodne zaščite in uvedla novo načelo, vse ljudske obrambe. V vseh vaseh, mestih, delovnih organizacijah in ustanovah so se oblikovali odbori ...splošnega ljudskega odpora (SLO), ki so se tudi usposabljali za obrambo pred vojno nevarnostjo in naravnimi nesrečami. Znamenito geslo pod katerim so se izvajale vse dejavnosti je bilo »NIČ NAS NE SME PRESENETITI! (NPP)«. Opremo, uniforme in tudi orožje so nabavile občine, ali delovne organizacije …Občasno so bila organizirana tudi tekmovanja med ekipami v znanju in spretnosti v praktičnem delu.Kasneje so bila takšna tekmovanja organizirana tudi skupaj z domicilno vojaško enoto, ali rezervnem sestavu JLA.Na sliki z regijskega tekmovanja v Ilirski Bistrici, (verjetno leta 1980), pred osnovno šolo D. Kette, foto Emil Maraž. Ekipa delovne organizacije Plame. Z leve: Mirjam Čendak, Sonja Štembergar, Majda Jursinovič, Nadja Petričič in Boža Rozman, ki je pomagala prepoznati članice ekipe. Tablo z napisom PLAMA drži četrtošolec Janko Čeligoj iz Osnovne šole Dragotina Ketteja.
Display omitted
•NiC/Mo2C/NF electrode heterostructure was in situ constructed.•NiC/Mo2C nanorods array exhibits excellent HER activity (31 mV at 10 mA cm−2, 264 mV at 500 mA cm−2).•NiC/Mo2C showed ...long term durability with negligible potential change for 200 h.•Balances the adsorption/desorption energy of the H-reaction intermediate, reduces the dissociation energy.
The problem limiting the use of hydrogen evolution reactions in industry is the inability of electrocatalysts to operate stably at high current densities, so the development of stable and efficient electrocatalysts is important for hydrogen production by water splitting. By designing a rational interface engineering not only can the problem of limited number of catalytic sites in the catalyst be solved, but also can facilitate electron transfer, thus enhancing the efficiency of water splitting. Here, we designed a two-stage chemical vapour deposition method to construct NiC/Mo2C nanorod arrays on nickel foam to enhance the electrocatalytic ability of the catalysts, which exhibited efficient HER catalytic activity due to their special tentacle-like nanorod structure and abundant heterogeneous junction surfaces, which brought about abundant active sites as well as promoted electron transfer capability. The resulting catalysts provide current densities of 10, 100 and 500 mA cm−2 with overpotentials of 31, 153 and 264 mV, and exhibit excellent stability at current densities of 10 mA cm−2 for 200 h. This discovery provides a new idea for the rational design of catalysts with special morphologies.
Display omitted
•Hierarchical NiC2O4/Ni(OH)2 nanospheres are synthesized via a simple two-step hydrothermal method as the positive electrode.•The porous biomass-derived carbon with the honeycomb ...structure is obtained from pine petals as the negative electrode.•Hierarchical NiC2O4/Ni(OH)2 nanospheres and the porous biomass-derived carbon possess a high specific capacity.•The hybrid supercapacitor exhibits excellent energy and power density.
The high-performance hybrid supercapacitor (HSC) with high power capability and stable cyclability is intensively pursued as a next-generation energy storage device. Here, a kind of hierarchical NiC2O4/Ni(OH)2 nanospheres, consisting of subunits of NiC2O4 nanorods and Ni(OH)2 nanospheres, are synthesized via a two-step hydrothermal method. The hierarchical NiC2O4/Ni(OH)2 nanosphere positive electrode, benefiting from the synergistic effect of unique hierarchical structure and built-in electric fields, significantly boosting electron transmission capability and accelerating the ion/electron transfer rate, delivers an excellent specific capacity of 668 C g−1 at 1 A g−1. In addition, the porous biomass-derived carbon (PBC) with the honeycomb structure from pine petals as the negative electrode shows a remarkable electrochemical performance, exhibiting a specific capacitance of 249.7 F g−1 at 1 A g−1. As such, an assembled HSC of NiC2O4/Ni(OH)2||PBC based on hierarchical NiC2O4/Ni(OH)2 nanospheres positive electrode and PBC negative electrode display a conspicuous energy density of 31.07 Wh kg−1, and a power density of 833.47 W kg−1 at a maximum potential window of 1.7 V. This innovative hierarchical engineering of double nickel-based composites with bio-carbon provides an advanced enlightenment for high-performance HSCs.
Realizing efficient and stable overall water electrolysis is crucial for advancing efficient hydrogen production. However, developing electrocatalysts with both efficient hydrogen evolution reaction ...(HER) and oxygen evolution reaction (OER) performance under alkaline condition remains a significant challenge. Here, we report an innovative methodology for synthesizing FeO(OH)@NiC2O4 on nickel foam (NF) through a one-step hydrothermal method. Remarkably, FeO(OH)@NiC2O4/NF exhibits a remarkably low OER overpotential of 370 mV at a current density of 100 mA cm−2 and excellent electrochemical stability in OER. The cell voltage required for overall water splitting is lower than that of most reported catalysts. Detailed experiments reveal that the phase transition of FeO(OH) is induced through compositing, thereby significantly enhancing the catalytic performance.
Display omitted
•Core-shell NiC2O4@C/N-doped NiCoZn-LDH(NCO@C/N-LDH) structure was prepared by two-step hydrothermal process.•Carbon and nitride were directly doped into NiCoZn-LDH nanosheets as ...shell.•The assembled NCO@C/N-LDH//AC devices provided high energy storage capability.
Layered double hydroxides (LDHs) are promising cathode materials for supercapacitors due to high theoretical specific capacitance and unique layered structure. Constructing hierarchical core–shell structure for the multicomponent LDHs is an effective strategy to further utilize them. Herein, a novel hierarchical core–shell structure (NCO@C/N-LDH) was fabricated by direct-doping of C and N species into NiCoZn-LDH nanosheets (C/N-LDH) coved on NiC2O4 (NCO) arranged on the nickel foam via two-step hydrothermal method. The NCO as a backbone prevented C/N-LDH nanosheets from collapsing in charge/discharge process, while the C/N-LDH shell provided abundant active sites and exclusive access to electron/ion transport for accelerating the Faradaic reaction kinetics. The optimal NCO@C/N-LDH(2.0) displayed a remarkable electrochemical performance with a high specific charge of 1841.0C/g at 1 A/g and good rate capability. Furthermore, the as-fabricated NCO@C/N-LDH//AC device delivered a high energy density of 56.9 Wh kg−1 at power density of 800 W kg−1.
Electrocatalytic water splitting to hydrogen production is a hot research topic in clean energy. However, due to the slow kinetics of oxygen evolution as one of the semi-reactions of water splitting, ...it is urgent to develop high-performance and cheap bifunctional catalysts. In this paper, we propose an effective one-step hydrothermal method to synthesize Fe doped NiC2O4 nanorods on Ni foam, which exhibit excellent electrocatalytic performance and stability in alkaline electrolytes. The oxygen evolution reaction overpotential is only 231 mV at 50 mA cm−2 and hydrogen evolution reaction overpotential is only 151 mV at 10 mA cm−2, which is superior to that most NiFe-based catalysts. Furthermore, the overall water-splitting device constructed with Fe doped NiC2O4 as anode and cathode achieves a low voltage of 1.60 V at 10 mA cm−2. The contribution of its excellent performance comes from the increase of effective active area and the decrease of electron transportation resistance after Fe doping. This work provides important guidance for the development of NiFe based catalysts.
The emergence of the 2019 novel coronavirus (COVID-19) which was declared a pandemic has spread to 210 countries worldwide. It has had a significant impact on health systems and economic, educational ...and social facets of contemporary society. As the rate of transmission increases, various collaborative approaches among stakeholders to develop innovative means of screening, detecting and diagnosing COVID-19's cases among human beings at a commensurate rate have evolved. Further, the utility of computing models associated with the fourth industrial revolution technologies in achieving the desired feat has been highlighted. However, there is a gap in terms of the accuracy of detection and prediction of COVID-19 cases and tracing contacts of infected persons. This paper presents a review of computing models that can be adopted to enhance the performance of detecting and predicting the COVID-19 pandemic cases. We focus on big data, artificial intelligence (AI) and nature-inspired computing (NIC) models that can be adopted in the current pandemic. The review suggested that artificial intelligence models have been used for the case detection of COVID-19. Similarly, big data platforms have also been applied for tracing contacts. However, the nature-inspired computing (NIC) models that have demonstrated good performance in feature selection of medical issues are yet to be explored for case detection and tracing of contacts in the current COVID-19 pandemic. This study holds salient implications for practitioners and researchers alike as it elucidates the potentials of NIC in the accurate detection of pandemic cases and optimized contact tracing.
PDF