The aim of this investigation was to determine the influence of additional LED (Light Emitting Diode) lighting on stem diameter and height as well as yield and fruit weight of tomato grown ...hydroponically in coco peat. The trial was conducted in a greenhouse using hydroponic technology production in cocoa peat. LED lamps equipped with blue and red diodes were placed above rows. Plants received additional light averagely 5 hours per day during 112 days until the third harvest was finished. Additional LED lighting significantly influence tomato by increasing the yield, fruit weight and stem diameter. In addition, plants treated with LED lighting had significantly shorter stem, indicating balanced growth and development. However, economic analysis showed that, even being low energy consumers, LED lamps used in this investigation are not efficient enough in energy considering realized yield and net profit. Therefore, LED lamps usage is recommended only during tomato transplants and similar species production.
Ovaj članak prikazuje pojam žalovanja kako je on prisutan u djelu "Dnevnik korote" Rolanda Barthesa i u tekstu Jacquesa Derride "Ovnovi. Neprekinuti dijalog: između dvije vječnosti, pjesma". Derridin ...tekst je baziran na predavanju održanom kao posmrtni govor upućen Derridinom prijatelju, filozofu Hansu-Georgu Gadameru. Misli iznesene u tom tekstu, u ovom su članku uklopljene u širu sliku Derridinih promišljanja o gubitku i smrti, budući da su to neke od tema kojima se stalno vraćao u svom radu. Jedan od ciljeva iznošenja ovoga proširenog pogleda jest predstavljanje tog pomalo zanemarenog područja unutar Barthesova i Derridina djelovanja na način na koji je naznačeno u primarnim tekstovima. Drugi cilj je skretanje pozornosti na sljedeću tezu: Derrida i Barthes dvije su strane iste medalje – dvije različite struje u razmišljanju o gubitku, koroti i neponovljivosti iskustva Drugoga, a koje se međusobno nadopunjuju i mogu se podvesti pod dva arhetipa: sizifovski i atlantski.
This article depicts the concept of mourning as it is depicted in Roland Barthes’ Mourning Diary and Jacques Derrida’s "Rams: Uninterrupted Dialogue between Two Infinities, the Poem". Derrida’s discourse is based on a lecture given as an obituary given to his friend, philosopher Hans-Georg Gadamer. The article incorporates Derrida’s thoughts in this text in his broader reflections on loss and death, since those are some of the topics he kept returning to in his work. One of the objectives of this expanded view is to present these somewhat neglected areas of Barthes’s and Derrida’s opuses as elaborated in the primary texts. The other objective is to bring the following thesis forward: Derrida and Barthes represent two sides of the same coin, two different streams of thought about loss, mourning and the unrepeatability of the experience of the Other. Their ways of thinking about these topics can complement each other and be subsumed under two archetypes: Sisyphus and the Antlanteans.
Cilj istraživanja bio je utvrditi utjecaj dodatnoga LED (Light Emitting Diode) osvjetljenja na promjer i visinu stabljike te prinos i masu ploda rajčice u hidroponskom uzgoju na kokosovim vlaknima. ...LED lampe opremljene s plavim i crvenim diodama postavljene su iznad redova. Biljke su bile dodatno osvijetljene prosječno 5 sati dnevno tijekom 112 dana, tj. do kraja treće berbe. Dodatno LED osvjetljenje značajno je utjecalo na povećanje prinosa i mase ploda te na promjer stabljike. Također, dodatno osvijetljene biljke imale su nižu stabljiku, što upućuje na uravnotežen rast i razvoj. Međutim, ekonomska je analiza pokazala da, iako su vrlo mali potrošači električne energije, LED lampe nisu dovoljno energetski učinkovite, s obzirom na ukupno povećanje prinosa rajčice i ostvarenu dobit. Prema tome, upotreba LED lampi preporučuje se samo tijekom proizvodnje presadnica rajčice i srodnih vrsta.
Following trauma, chronic periapical process, or tooth extraction, a large loss of bone volume is noticed during the healing process. To facilitate the placement of dental implants, various surgical ...procedures are used for an optimal alveolar ridge profile, while maintaining adequate bone dimensions. The main aim of this study was to determine the healing ability (histologically and immunohistologically) of alveolar bone defects during augmentation with two different biomaterials: injectable biphasic calcium phosphate (BCP) and anorganic bovine bone (ABB). Thirty-eight subjects were randomly divided into two groups. The first group received the tested bone substitute biomaterial (BSB), i.e., BCP (maxresorb inject
), and the second group received an alternative to the gold standard, i.e., ABB (Bio-Oss
). The histopathological, histomorphometric, and immunohistochemical analyses gave comparable results for these bone substitute materials in terms of newly formed bone: (BCP: 39.91 ± 8.49%, ABB: 41.73 ± 13.99%), residual biomaterial (BCP: 28.61 ± 11.38%, ABB: 31.72 ± 15.52%), and soft tissue (BCP: 31.49 ± 11.09%, ABB: 26.54 ± 7.25%), with no significant difference found between the groups (
< 0.05,
-test), proving that BCP is equally suitable and successful for alveolar bone regeneration.
This prospective, randomized, controlled clinical trial reports clinical, radiographic, histologic and immunohistochemical results of autologous dentin graft (ADG) and its comparison with a mixture ...of bovine xenograft with autologous bone (BX+AB). After tooth extraction in the esthetic zone of maxilla, the alveolar ridge of 20 patients in the test group was augmented with ADG, while 17 patients in the control group received the combination of BX+AB. Cone beam computed tomography (CBCT) was performed before tooth extraction and after 4 months when a total of 22 bone biopsies were harvested and subjected to histological and immunohistochemical analysis. Radiological analysis showed comparable results of bone dimension loss in both groups. Quantitative histologic analysis showed comparable results with no statistically significant differences between the groups. Immunohistochemical staining with TNF-α and BMP-4 antibodies revealed immunopositivity in both groups. A statistically significant difference between the groups was found in the intensity of TNF-α in the area of newly formed bone (
= 0.0003) and around remaining biomaterial particles (
= 0.0027), and in the intensity of BMP-4 in the area around biomaterial particles (
= 0.0001). Overall, ADG showed biocompatibility and achieved successful bone regeneration in the esthetic zone of the maxilla similar to BX+AB.
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