Archives, Room Use Only - KF51 1842

Archives, Room Use Only - HA201 1850D

Archives, Room Use Only - U113.U55 1905

Archives, Room Use Only - E608.P58 1974

Archives, Room Use Only - TK3251.S44 1886

Archives, Room Use Only - UG603.A76 1915

Archives, Room Use Only - HE8097.A54 1873

Archives, Room Use Only - HE336.E94 O74 1858

Archives, Room Use Only - TK5118.M7 C43 1853

Archives, Room Use Only - HE7713.U6 M47 1887

Archives, Room Use Only - HE6184.C65 H37 1993

Archives, Room Use Only - UG573.R44 1880

Archives, Room Use Only - T960.E1 U68 1876

Archives, Room Use Only - HE7781.W37 1870

Archives, Room Use Only - UG603.A76 1912

Archives, Room Use Only - F908.W59 1869

Archives, Room Use Only - TK5269.C65 1859

Archives, Room Use Only - HE7781.R36 1874

Archives, Room Use Only - UG573.U56 1916

Archives, Room Use Only - HE7781.C65 1844

Historic maps from the Library's collections documenting battles and campaigns of the Civil War, and other historical events.  The site sill be updated regularly with a selection of new maps, accompanied by captions, in chronological order.

Click here for more information.

The Union Health ministry put the number of positive cases at 82, eight more since Thursday night, which includes the woman and a 76-year-old man from Karnataka who became the country's first coronavirus fatality besides 17 foreign nationals, Health Ministry officials said.

Four people have died including one each in Delhi, Karnataka, Punjab and Maharashtra.

Authorities have put almost the entire country under lockdown, banning gathering of people and suspending road, rail and air traffic till March 31.

Another 54,262 have applied for passes

Centre’s advisory to NE states on returnees during lockdown

: Hundreds of students from Bihar, who are still stranded in other states, are desperate to take the first train or flight back to their native places. They stay in private accommodations and are finding in difficult to arrange for food after running out of money amid the Covid-19 lockdown.

Five nations witness an upward trajectory in new Covid-19 cases while Iran might be seeing a second wave

From reviving a struggling financial sector, to a spike in cases in Odisha, to making India a Covid-19 testing superpower

‘They should have been empowered to demarcate containment zones’

The ones registered on Seva Sindhu portal can hire buses from the RTCs

Govt. alters its earlier stand based on recommendations of an expert group

Now, those registered on Seva Sindhu portal can hire Karnataka STU buses to southern states

A video on the opening of liquor shops after the easing of the COVID-19 lockdown in India

The crystal structure of the c-type cytochrome NirC from Pseudomonas aeruginosa has been determined and reveals the simultaneous presence of monomers and 3D domain-swapped dimers in the same asymmetric unit.

The title compound, C9H7.5NO·C7H3.5ClNO4, was analysed as a disordered structure over two states, viz. co-crystal and salt, accompanied by a keto–enol tautomerization in the base mol­ecule. The co-crystal is 4-chloro-2-nitro­benzoic acid–quinolin-4(1H)-one (1/1), C7H4ClNO4·C9H7NO, and the salt is 4-hy­droxy­quinolinium 4-chloro-2-nitro­benzoate, C9H8NO+·C7H3ClNO4−. In the compound, the acid and base mol­ecules are held together by a short hydrogen bond [O⋯O = 2.4393 (15) Å], in which the H atom is disordered over two positions with equal occupancies. In the crystal, the hydrogen-bonded acid–base units are linked by N—H⋯O and C—H⋯O hydrogen bonds, forming a tape structure along the a-axis direction. The tapes are stacked into a layer parallel to the ab plane via π–π inter­actions [centroid–centroid distances = 3.5504 (8)–3.9010 (11) Å]. The layers are further linked by another C—H⋯O hydrogen bond, forming a three-dimensional network. Hirshfeld surfaces for the title compound mapped over shape-index and dnorm were generated to visualize the inter­molecular inter­actions.

Single crystals of the m = 8 member of the low-dimensional monophosphate tungsten bronzes (PO2)4(WO3)2m family were grown by chemical vapour transport technique and the high crystalline quality obtained allowed a reinvestigation of the physical and structural properties. Resistivity measurements revealed three anomalies at TC1 = 258 K, TC2 = 245 K and TC3 = 140 K, never observed until now. Parallel X-ray diffraction investigations showed a specific signature associated with three structural transitions, i.e. the appearance of different sets of satellite reflections below TC1, TC2 and TC3. Several harmonics of intense satellite reflections were observed, reflecting the non-sinusoidal nature of the structural modulations and a strong electron–phonon coupling in the material. These transitions could be associated with the formation of three successive unconventional charge density wave states.

Transforming growth factor β-1 (TGFβ-1) is a secreted signalling protein that directs many cellular processes and is an attractive target for the treatment of several diseases. The primary endogenous activity regulatory mechanism for TGFβ-1 is sequestration by its pro-peptide, latency-associated peptide (LAP), which sterically prohibits receptor binding by caging TGFβ-1. As such, recombinant LAP is promising as a protein-based therapeutic for modulating TGFβ-1 activity; however, the mechanism of binding is incompletely understood. Comparison of the crystal structure of unbound LAP (solved here to 3.5 Å resolution) with that of the bound complex shows that LAP is in a more open and extended conformation when unbound to TGFβ-1. Analysis suggests a mechanism of binding TGFβ-1 through a large-scale conformational change that includes contraction of the inter-monomer interface and caging by the `straight-jacket' domain that may occur in partnership through a loop-to-helix transition in the core jelly-roll fold. This conformational change does not appear to include a repositioning of the integrin-binding motif as previously proposed. X-ray scattering-based modelling supports this mechanism and reveals possible orientations and ensembles in solution. Although native LAP is heavily glycosylated, solution scattering experiments show that the overall folding and flexibility of unbound LAP are not influenced by glycan modification. The combination of crystallography, solution scattering and biochemical experiments reported here provide insight into the mechanism of LAP sequestration of TGFβ-1 that is of fundamental importance for therapeutic development.