Show filters Hide filters

Refine your search

Publication Year
1-36 out of 55 results
Change view
  • Sort by:
01:40 IWF (Göttingen) German 1993

Kontrastnatur der Braunempfindung I

Projection with two projectors (a), (b). (a) throws a constant additional light and (b) projects a neutrally coloured slide with a black spot on an orange cardboard. The spot appears in this surrounding as a brown infield. When the light of (b) is dimmed in a neutral colour temperature so much that the luminosity of the surrounding approximates the luminosity of the infield, it appears orange, too. - Now the infield is shielded, the luminosity of (b) is varied strongly, as can be watched at the right bottom of the screen. The isolated infield keeps brown. - Repetition of the experiment.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
02:09 IWF (Göttingen) German 1993

Chromatischer Flächenkontrast nach Ragona Scina und Hering

The mirror experiment caused Osann (1837) to concede the occuring complementary colours the status of "objective complementary colours". In proof of their subjective nature first a fullscreen grey appearing infield detail. The picture is expanded to the surrounding and the infield shows contrast. Another zoom into the infield. - Demonstration of Hering's (1887) version of an experiment by Ragona Scina (1847). In the final shot the luminosity of the lying model object is varied.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
02:03 IWF (Göttingen) German 1993

Chromatischer Flächenkontrast nach H. Meyer und Koffka

According to Koffka 1915/1935 grey infields show no contrast when they lie divided in different coloured fields. Even a cover of flimsy paper - which according to Herm. Meyer 1855 has a contrast maximizing effect by blurring the edges and minimizing the luminosity gradient - does not change that. Contrast only results when the infields are arranged on the coloured fields in such a way that each has its own surrounding.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
36:47 Freie Universität Berlin, Zentraleinrichtung für AV-Medien English 1993

Orbit and Insolation (The Milankovitch-Theory)

The film explains the main topics of the earth's orbit around the sun and the seasons. It defines and describes insolation and demonstrates the effects of obliquity, eccentricity and precession on insolation by means of mechanical models and graphic animation.
  • Published: 1993
  • Publisher: Freie Universität Berlin, Zentraleinrichtung für AV-Medien
  • Language: English
09:50 IWF (Göttingen) English 1993

Nest-Building Activities of the Bumblebee Bombus lapidarius

Building work in the nest is done initially by the queen but increasingly by the workers. The collection of sufficient food reserves (here nettles and poppy) is essential for the growth of the nest. The film shows the structure of the nest, the building of a nectar container, the closing of an egg gallery and building of a roof. The most important building material is wax.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: English
10:15 IWF (Göttingen) German 1993

Makrophagen - HIV-induzierte Synzytienbildung bei humanen Monozyten/Makrophagen

Synzytienbildung durch Zellfusion nach Infektion mit HIV. Humane Blutmonozyten reifen in der Zellkultur zu Makrophagen. Endomitosen treten auf. 10 bis 13 Tage nach In-vitro-Infektion mit humanem Immunodefizienz Virus Typ 1 (HIV-1) bilden sich mehrkernige Riesenzellen unter Beteiligung verschieden differenzierter Makrophagen. Der zytopathische Effekt hat Ähnlichkeit mit neurohistopathologischen Befunden. Mikrokinematografie mit Zeitraffung sowie Trickbearbeitung.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1993

Kindertänze türkischer Kinder in Deutschland

Ten to twelve year old children of Turkish families perform games and dances with handclapping and expressive movements of the body as well as recitations and singing. The repertory is orginally Turkish and is now also practised in Germany - here on the playground of the German primary school attended by the children. The ten examples presented include a counting-out rhyme, three clapping games and two games in circular formation, a circle dance and two dances in line, and alternating reciting. Besides the Turkish elements the examples show the common patterns of children's repertory and its combination of movement with speech or singing. Moreover in the actual performance common elements of European coherence can be distinguished.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
12:26 IWF (Göttingen) German 1993

Fortpflanzungsverhalten von Ixodes ricinus

Reproduction in Ixodes tick is characterized by the indirect transfer of the spermatophore and the use of the erectile Gené organ in oviposition. Anchoring the hypostome in the female sexual opening. Transfer of the spermatophore. Beginning of egg-laying (oviposition) including the shearing action of the palpi and stroking movement of the Gené organ. With enlargements and time lapse.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1993

Lichterschwemmen in Wurmlingen

On St Josephs evening (19 march) adults and children launch boats containing lighted candles into the stream and sing traditional songs.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
08:11 IWF (Göttingen) German 1993

Das Rüsselreflexverhalten der Honigbiene - Die Konditionierung von Gerüchen und ihre Verarbeitung im Gehirn

Demonstration der Konditionierung von Gerüchen (Rosenduft): Fixierte Bienen-Arbeiterinnen, denen gleichzeitig Zuckerwasser und Rosenduft geboten wird, speichern die Information im Gehirn und zeigen künftig das Rüsselreflexverhalten auch dann, wenn ihnen der Duft ohne Zuckerwasser geboten wird. Die Speicherung derartiger Erfahrungen befähigt die Bienen zur intraspezifischen Kommunikation über Trachtquellen zur Blütenstetigkeit. Mit REM-Aufnahmen und Zeichentrick.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
08:25 IWF (Göttingen) English 1993

The Proboscis Reflex Behaviour of the Honeybee - The Conditioning of Odours and Their Treatment in the Brain

The film shows an experimental setup for differential conditioning of honeybees to odours. Classical conditioning of the honeybees is demonstrated; the proboscis reflex behaviour is shown in close-ups. A trick-film part demonstrates the neurobiological basis of the conditioning process. The odour receptors on the antennae of the bee are shown and the brainstructures are described. Learning and memory are compared for the experimental bees and for bees in the field under natural conditions.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: English
Offline Collection IWF (Göttingen) German 1993

Der Bollenhut - Ein Symbol der Schwarzwälder Tracht

The importance of the "Bollenhut" as an original element of the traditional Black Forest costume as well as in advertising, tourism, and caricature. The hat-maker Hedwig Kaltenbach explains, while working, the different operartions and talks about the social funktion of the "Bollenhut". The teacher Ansgar Barth speaks about its cultural history. Interviews with Black Forest women wearing these traditional hats and with a female tourist as well as exemplifying pictures shed a strong light on this symbol of Black Forest costume.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1993

Schindelmachen und Dachdecken im Schwarzwald

Shingles belong to traditional buildings of the Black Forest. Huge areas of walls and roof are protected with a layer of shingles 3 to 4 deep. The film shows the preparation of wooden shingles, beginning with the work of the shingle maker searching for appropriate trees in the forest. The roofers comment on the traditional and modern methods of nailing shingles.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1993

Hinterglasmalerei im Schwarzwald

Friedbert Andernach explains the development of glass working and the major features of Verre églomisé in the Black Forest. In his workshop he shows the various phases, the motives and the materials. François Lotz explains the relevance of the Black Forest glass works in Alsace.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1993

Herstellen und Tragen einer Brautkrone "Schäppel"

Mrs Schneider makes bridal crowns on her farm in Oberprechtal explaining the background and reasons for these traditional crowns, including each phase of work and the materials used. On her farm in Stockwald (close to St. Georgen) Mrs Wintermantel prepares the bridal crown for her future daughter-in-law Martina, and in doing so explains the function of the rose-hat.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1993

Otto Koenig - Stationen eines Forscherlebens

Beginning with his memories of childhood, Otto Koenig talks about his scientific career. His wife Lilli as well as his students and colleagues supplement the portrait of Konrad Lorenz' disciple, who, in 1945, founded the "Biologische Station Wilhelminenberg", where research on behaviour, culture and environment was carried out. Koenig explains his concept of cultural ethology and allows many glances at his work, including several research departments of his Institute for Applied Eco-Ethology, instances of his work in scientific film and TV, his collections and the intensive cooperation with his wife. Otto Koenig died in December 1992 aged 78.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
26:42 IWF (Göttingen) English 1993

Image Processing in the Visual System of the Common Toad - Behaviour, Brain Function, Artificial Neuronal Net

Neurobiology and neuroinformatics are two corresponding disciplines. One topic of interdisciplinary research is visual pattern discrimination. Selecting visually guided prey-catching behaviour of the common toad, this film shows: 1. by which features prey objects can be discriminated from nonprey, 2. how feature related information is processed in different brain regions in a parallel interactive manner, 3. that the feature assignment principle can be illustrated by means of a simple model of a neuronal circuit, in cartoon motion pictures, 4. how this model can be tested, 5. that object discrimination may be modified by associative learning, 6.how learning involved brain structures are approached, which leads to an extension of the model, 7. that some characteristics of object discrimination can be simulated with the aid of an artificial neuronal net, and 8. that such a net can tell a robot, for example, to sort objects moving on a conveyor belt.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: English
26:19 IWF (Göttingen) German 1993

Bildverarbeitung im Sehsystem der Erdkröte - Verhalten, Hirnfunktion, künstliches neuronales Netz

Am Beispiel des visuell gesteuerten Beutefangverhaltens der Erdkröte zeigt der Film, an welchen Merkmalen Objekte für die Auslösung des Beutefangs unterschieden werden und wie merkmalbezogene Informationen in verschiedenen Hirnbereichen parallel-interaktiv verarbeitet werden. Merkmalszuordnung wird anhand eines Hirnnetzmodells in Trickfolgen illustriert. Dieses Modell wird neurobiologisch getestet. Es wird gezeigt, daß Objektunterscheidung durch assoziatives Lernen modifizierbar ist, und wie am Lernen beteiligte Hirnstrukturen aufgespürt werden, was zur Erweiterung des Modells führt. Charakteristika der Objektunterscheidung lassen sich mit Hilfe eines künstlichen neuronalen Netzes simulieren.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
16:50 IWF (Göttingen) German 1993

Strömungen und Ausbreitung von gelösten Stoffen in der Nordsee

Die für die Ausbreitung von passiven, konservativen Teilchen maßgeblichen physikalischen Prozesse - gezeitenbedingte Restströmung, dichtebedingte und atmosphärisch angefachte Strömungen - werden am Beispiel der Nordsee erklärt. Über einen Zeitraum von 13 Jahren ist der Eintrag aus Flüssen dargestellt. Es ergibt sich eine asymmetrische Verteilung der Teilchenkonzentration mit Spitzenwerten in den Küstenbereichen als Resultat der mittleren Strömung. Eine starke vertikale Schichtung wird verursacht durch die hohe Variabilität und sommerliche Entkopplung der Oberflächendichte in großen Teilen der Nordsee. Computersequenzen basieren auf numerischen Simulationsmodellen, die mit realen Meßdaten gespeist wurden.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
25:24 IWF (Göttingen) German 1993

Brutbiologie des Zwerghaubenfischers

Zwerghaubenfischer konkurrieren untereinander bei sinkendem Wasserstand des Okavango um für Bruthöhlen geeignete Uferwände. In der bis zu 90 cm tief in der Steilwand liegenden, selbstgegrabenen Höhle werden bis zu 6 Eier gelegt. Die Jungvögel schlüpfen im Tagesabstand und verlassen nach jeweils 22 Tagen die Höhle spontan, oder indem sie einem abfliegenden Elter folgen. Brut- und Fütterungsaufnahmen in der unterirdischen Höhle. Nach dem Verlassen der Höhle werden die Jungvögel nur noch wenige Tage versorgt. Sie stoßen alsbald selbständig auf oberflächennahe Fische. Mit Zeitdehnung.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
37:52 IWF (Göttingen) German 1993

Mitteleuropa, Rheinland - Köhlerei im Kermeter: Brennen und Ausräumen des Meilers. Schmidt/Nideggen 1981

To start the process of carbonization the charcoal-burners introduce a fire into the fuel shaft, where combustion then rises from the bottom to the top. Smoke-holes are made in the jacket of the pile, first at the upper part and then, at regular intervals, lower and lower, thus directing carbonization from the top over the flanks to the base of the pile. Once carbonization is achieved, the men remove the charcoal by sectors, turn it over and sprinkle it with water, before putting it in sacks and carting the sacks away. The process inside the pile is represented by trick sequences.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
24:32 IWF (Göttingen) German 1993

Mitteleuropa, Rheinland - Solinger Messermacherhandwerk: Der Einsteckreider. Werkstatt Walter Krebs. Solingen 1988

At Unnersberg there still exists the workshop, set up in 1923, of the 87-year-old "Einsteckreider" Walter Krebs. Walter Krebs shows the abilities and the working techniques of the "Einsteckreider" fitting knives: After a treatment with resin and lead he fixes the blade in the haft and adjusts the knife. While working he talks about stages in his professional life.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
51:37 IWF (Göttingen) German 1993

Schüttenhoff in Förste/Nienstedt 1989

Every fifth year in Förste/Nienstedt people gather to the "Schüttenhoff" (shooters court), a special form of Schützenfeste (festival with side-shows, including marksmanship) found in southern lower saxony. For five days at Easter processions of three "battalions" take place symbolizing the storming, defence and conquering of barricades erected by inhabitants or local associations. The three "battalions" are the riflemen (responsible for taking the barricade), the farmers (responsible for defending the barricades) and the pioneers (responsible for mopping up). Two of the five processions are shown, men on Whitsun Sunday and women on the following Tuesday.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1993

"Klaasohm sin Hunk" - Nikolaus auf Borkum 1990

On Nicholas evening (6.12.) the people of Borkum celebrate the islands most important annual celebration, Klaasohm. A man disguised as a woman ("Wiefke", widow), together with 6 disguised children run through the streets. They visit the old, the infirm and the children bringing as a present a special baked treat ("Moppe"). They also barge into pubs and restaurants and throw out the women and girls.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
38:27 IWF (Göttingen) Original sound, no spoken text 1993

Mitteleuropa, Rheinland - Der Ringofen: Abbau von Lehm, Formen und Brennen von Ziegeln. Meckenheim 1988

After collecting and extruding the clay, cutting off pieces of the clay column and drying them, the moulded bricks are set in the annular brick-kiln. In the annular brick-kiln the fire circulates once in eight days. The bricks are set in and removed after baking in two chambers, in the other twelve chambers they are heated, baked, and cooled.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: Original sound, no spoken text
11:16 IWF (Göttingen) German 1993

Organisation und Fortpflanzung von Enchytraeen (Oligochaeta)

An Arten der Gattung Enchytraeus wird die Organisation der Oligochaeta (Wenigborster) beispielhaft erklärt. Auf verschiedenen Substraten werden im Auf- und Durchlicht Fortbewegung, Nahrungsaufnahme, Kopulation, Kokonbildung, Eiablage, Embryonalentwicklung und Schlüpfen des Jungwurms aus dem Kokon gezeigt. Folgende Organe sind zu erkennen: Borstenbündel, Metanephridien, Darmkanal, Geschlechts- und Kopulationsorgane, Clitellum. Mit Zeitraffung.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
11:16 IWF (Göttingen) English 1993

Organization and Reproduction of Enchytraeids (Oligochaeta)

The film presents the reproductive biology of two enchytraeid species (Enchytraeus albidus, E. crypticus) and different details of the internal organisation. Apart from food uptake and peristaltic movement the records give an account of copulation, shedding of the cocoon and hatching of the young in particular.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: English
Offline Collection IWF (Göttingen) German 1993

Tikar (Äquatorialafrika, Kameruner Grasland) - Begräbnis eines alten Mannes

Gunshots announce a person's death. While the grave is dug the members of the family take their leave of the deceased by rubbing his body with camwood powder. Before the interment takes place, the running masks arrive as representatives of the mask society to take their leave of the deceased. After the interment - the body rests in a lateral chamber, at the bottom of the grave - dancing begins in the grave while the earth is replaced. At the conclusion of the burial the military society play their secret instruments.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) Silent film 1993

Anartia fatima (Nymphalidae) - Drohflug

Arriving male of Anartia fatima flying close around a conspecific specimen (possibly start of courtship); searching flight; pursuit of insects, in alternating flight positions above each other.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: Silent film
Offline Collection IWF (Göttingen) German 1993

Mitteleuropa, Rheinland - Köhlerei im Kermeter: Herrichten des Kohlplatzes und Aufbau des Meilers. Schmidt/Nideggen 1981

In an ancient burning-place in the Kermeter charcoal-burners raise a charcoal-pile as it was used up to the seventies. First the base of the pile, the so-called sole, is levelled and measured. Then the cone-shaped stack of wood, composed of two sets and the head, is built up and covered with the jacket, a layer of leaves and a layer of earth.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1993

Tikar (Äquatorialafrika, Kameruner Grasland) - Begräbnis einer alten Frau

The death of an old woman at Oku is followed by funeral and purification ceremonies occupying three days. After death songs sung by the women's society <i>Fimbien</i> the corpse is buried in the garden of the homestead. Further singing and dancing upon the grave conclude the first day. The second day is spent in eating, drinking, and dancing, and a ritual washing of the female relatives and the childless married young women takes place on the third day. The day is concluded by ritual sham fights performed by the women.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1993

Nalumin (Papua-Neuguinea, Star Mountains) - Geheimer Pflanzzauber

Senemal, a man from the village of Banolbil, sets up a ritual taro garden on his planting area near the primary forest in order to cause the spirits to ensure a good taro harvest. After he has obtained dracaenas (cordyline) as ritual plants, Senemal sets a number of taro cuttings in his garden. Together with dracaenas and stones these become a composition that the spirits will like. The taro cuttings are ritually treated before being set.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
15:58 IWF (Göttingen) English 1993

Different Keratinocyte Cultures - Effect of Liposomes and Dithranol

Comparison of guinea pig keratinocytes, human keratinocytes (after subculturing) and HaCaT cells (immortalized cell lines). The HaCaT cells were tested under the influence of liposomal phospholipids and anthralin. The results prove that liposomal phospholipids have no recognizable cytotoxic effect, and that higher dosages of anthralin have a clearly cytotoxic effect, whereas lower dosages work to extend the mitotic state in time.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: English
10:16 IWF (Göttingen) English 1993

Macrophages - HIV-induced Syncytia Formation in Human Monocytes/Macrophages

With the help of time-lapse phase contrast photography (1:200 to 1:6000) it is possible to follow HIV-induced cell fusion and the formation of syncytia in monocyte/macrophages isolated from human blood. Syncytia are rarely seen in normal cell culture. The infection of monocyte/macrophages by viruses, for example human immunodeficiency virus (HIV), induces fusion between these cells which results in large multi-nucleated syncytia. In HIV-infected macrophages that have been in culture for a number of weeks these syncytia can reach a significant size and contain dozens of nuclei. The film further demonstrates not only the formation of syncytia through HIV-induced cell fusion, but also specifically the dynamics of this process, the kinetics of cell fusion and syncytia formation as well as the nature of the involvement of macrophage subtypes.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: English
Offline Collection IWF (Göttingen) English 1993

Foutura - A Lobi Potter Tells Her Story, Burkina Faso

Foutura Sib talks with Binaté Kambou about her life as a potter. As a small girl she learned to make pots, to crush potsherds and to knead clay. Later she fetched clay together with other women, she made pots for millet gruel, decorated waterpots. As a married woman she decorated her room with many pots, produced pots for brewing beer and took them to the market after firing. In case of damage a diviner has to be consulted. Now, as an old woman, she produces also sacred pots. Today the claypots have to compete with aluminium-pots and plastic tons.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: English
Offline Collection IWF (Göttingen) German 1993

Kupferarbeit in Santa Clara del Cobre, Michoacán, Mexiko - Ein Handwerk im Wandel

Santa Clara del Cobre ist ein Zentrum handwerklicher Kupferbearbeitung. Noch heute werden, wie in der Kolonialzeit, Kessel aus Kupfer getrieben. Mitte der 40er Jahre begann man außerdem, Kupferplatten und -gefäße vor allem für ein städtisches Publikum zu schmieden. Die Herstellung verschiedener Gefäße zeigen Guadalupe Lucas (Kupferkessel), Pablo Pureco (zisilierte Platten) und Etelberto Ramírez (Blumenvase). In Interviews legen sie die Entwicklung des Handwerks und die aktuellen Probleme dar.
  • Published: 1993
  • Publisher: IWF (Göttingen)
  • Language: German
out of 2 pages
Loading...
Feedback

Timings

  105 ms - page object
   30 ms - search
    1 ms - highlighting
    0 ms - highlighting/11466
    0 ms - highlighting/18286
    0 ms - highlighting/10955
    0 ms - highlighting/12639
    0 ms - highlighting/17761
    0 ms - highlighting/23298
    0 ms - highlighting/16785
    0 ms - highlighting/18221
    0 ms - highlighting/14330
    0 ms - highlighting/16788
    0 ms - highlighting/15144
    0 ms - highlighting/17105
    0 ms - highlighting/18218
    0 ms - highlighting/11517
    0 ms - highlighting/15148
    0 ms - highlighting/18288
    0 ms - highlighting/10957
    0 ms - highlighting/19934
    0 ms - highlighting/10493
    0 ms - highlighting/17762
    0 ms - highlighting/11465
    0 ms - highlighting/16786
    0 ms - highlighting/16204
    0 ms - highlighting/17763
    0 ms - highlighting/11818
    0 ms - highlighting/20058
    0 ms - highlighting/27651
    0 ms - highlighting/23309
    0 ms - highlighting/23308
    0 ms - highlighting/23315
    0 ms - highlighting/27655
    1 ms - highlighting/27584
    0 ms - highlighting/27406
    0 ms - highlighting/27661
    0 ms - highlighting/11582
    0 ms - highlighting/11583

Version

AV-Portal 3.8.0 (dec2fe8b0ce2e718d55d6f23ab68f0b2424a1f3f)